Various reworks

api/src/main/java/io/xpipe/api/DataTable.java

@@ -4,6 +4,7 @@ import io.xpipe.core.data.node.ArrayNode;
 import io.xpipe.core.data.node.TupleNode;
 import io.xpipe.core.source.DataSourceInfo;
 
+import java.util.concurrent.atomic.AtomicInteger;
 import java.util.stream.Stream;
 
 public interface DataTable extends Iterable<TupleNode>, DataSource {
@@ -15,4 +16,14 @@ public interface DataTable extends Iterable<TupleNode>, DataSource {
     ArrayNode readAll();
 
     ArrayNode read(int maxRows);
+
+    default int countAndDiscard() {
+        AtomicInteger count = new AtomicInteger();
+        try (var stream = stream()) {
+            stream.forEach(dataStructureNodes -> {
+                count.getAndIncrement();
+            });
+        }
+        return count.get();
+    }
 }

api/src/main/java/io/xpipe/api/connector/XPipeConnection.java

@@ -3,7 +3,6 @@ package io.xpipe.api.connector;
 import io.xpipe.beacon.*;
 import io.xpipe.beacon.exchange.cli.DialogExchange;
 import io.xpipe.core.dialog.DialogReference;
-import io.xpipe.core.util.JacksonHelper;
 
 import java.util.Optional;
 
@@ -64,10 +63,6 @@ public final class XPipeConnection extends BeaconConnection {
 
     @Override
     protected void constructSocket() {
-        if (!JacksonHelper.isInit()) {
-            JacksonHelper.initModularized(ModuleLayer.boot());
-        }
-
         if (!BeaconServer.isRunning()) {
             try {
                 start();
@@ -79,13 +74,13 @@ public final class XPipeConnection extends BeaconConnection {
             if (r.isEmpty()) {
                 throw new BeaconException("Wait for xpipe daemon timed out");
             } else {
-                socket = r.get();
+                beaconClient = r.get();
                 return;
             }
         }
 
         try {
-            socket = new BeaconClient();
+            beaconClient = new BeaconClient();
         } catch (Exception ex) {
             throw new BeaconException("Unable to connect to running xpipe daemon", ex);
         }

api/src/main/java/io/xpipe/api/impl/DataTableImpl.java

@@ -4,6 +4,7 @@ import io.xpipe.api.DataSourceConfig;
 import io.xpipe.api.DataTable;
 import io.xpipe.api.connector.XPipeConnection;
 import io.xpipe.beacon.BeaconConnection;
+import io.xpipe.beacon.BeaconException;
 import io.xpipe.beacon.exchange.api.QueryTableDataExchange;
 import io.xpipe.core.data.node.ArrayNode;
 import io.xpipe.core.data.node.DataStructureNode;
@@ -16,10 +17,9 @@ import io.xpipe.core.source.DataSourceInfo;
 import io.xpipe.core.source.DataSourceReference;
 import io.xpipe.core.source.DataSourceType;
 
+import java.io.IOException;
 import java.io.InputStream;
 import java.util.*;
-import java.util.concurrent.atomic.AtomicBoolean;
-import java.util.concurrent.atomic.AtomicReference;
 import java.util.stream.Stream;
 import java.util.stream.StreamSupport;
 
@@ -43,8 +43,9 @@ public class DataTableImpl extends DataSourceImpl implements DataTable {
     }
 
     public Stream<TupleNode> stream() {
+        var iterator = new TableIterator();
         return StreamSupport.stream(
-                Spliterators.spliteratorUnknownSize(iterator(), Spliterator.ORDERED), false);
+                Spliterators.spliteratorUnknownSize(iterator, Spliterator.ORDERED), false).onClose(iterator::finish);
     }
 
     @Override
@@ -71,13 +72,12 @@ public class DataTableImpl extends DataSourceImpl implements DataTable {
         return ArrayNode.of(nodes);
     }
 
-    @Override
+    private class TableIterator implements Iterator<TupleNode> {
-    public Iterator<TupleNode> iterator() {
-        return new Iterator<>() {
 
         private final BeaconConnection connection;
         private final TypedDataStreamParser parser;
         private final TypedAbstractReader nodeReader;
+        private TupleNode node;
 
         {
             nodeReader = TypedDataStructureNodeReader.of(info.getDataType());
@@ -85,7 +85,7 @@ public class DataTableImpl extends DataSourceImpl implements DataTable {
 
             connection = XPipeConnection.open();
             var req = QueryTableDataExchange.Request.builder()
-                        .ref(DataSourceReference.id(getId())).build();
+                    .ref(DataSourceReference.id(getId())).maxRows(Integer.MAX_VALUE).build();
             connection.sendRequest(req);
             connection.receiveResponse();
             connection.receiveBody();
@@ -99,26 +99,27 @@ public class DataTableImpl extends DataSourceImpl implements DataTable {
         public boolean hasNext() {
             connection.checkClosed();
 
-                AtomicBoolean hasNext = new AtomicBoolean(false);
+            try {
-                connection.withInputStream(in -> {
+                node = (TupleNode) parser.parseStructure(connection.getInputStream(), nodeReader);
-                    hasNext.set(parser.hasNext(in));
+            } catch (IOException e) {
-                });
+                throw new BeaconException(e);
-                if (!hasNext.get()) {
-                    finish();
             }
-                return hasNext.get();
+            if (node == null) {
+                // finish();
+            }
+            return node != null;
         }
 
         @Override
         public TupleNode next() {
             connection.checkClosed();
 
-                AtomicReference<TupleNode> current = new AtomicReference<>();
+            return node;
-                connection.withInputStream(in -> {
-                    current.set((TupleNode) parser.parseStructure(connection.getInputStream(), nodeReader));
-                });
-                return current.get();
         }
     };
+
+    @Override
+    public Iterator<TupleNode> iterator() {
+        return new TableIterator();
     }
 }

beacon/src/main/java/io/xpipe/beacon/BeaconClient.java

@@ -1,7 +1,7 @@
 package io.xpipe.beacon;
 
 import com.fasterxml.jackson.core.JsonGenerator;
-import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.core.util.DefaultPrettyPrinter;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.node.JsonNodeFactory;
 import com.fasterxml.jackson.databind.node.ObjectNode;
@@ -11,12 +11,11 @@ import io.xpipe.beacon.exchange.data.ClientErrorMessage;
 import io.xpipe.beacon.exchange.data.ServerErrorMessage;
 import io.xpipe.core.util.JacksonHelper;
 
-import java.io.IOException;
+import java.io.*;
-import java.io.InputStream;
-import java.io.OutputStream;
 import java.net.InetAddress;
 import java.net.Socket;
 import java.net.SocketException;
+import java.nio.charset.StandardCharsets;
 import java.util.Arrays;
 import java.util.Optional;
 
@@ -50,21 +49,28 @@ public class BeaconClient implements AutoCloseable {
         }
     }
 
-    private final Socket socket;
+    private final Closeable closeable;
     private final InputStream in;
     private final OutputStream out;
 
     public BeaconClient() throws IOException {
-        socket = new Socket(InetAddress.getLoopbackAddress(), BeaconConfig.getUsedPort());
+        var socket = new Socket(InetAddress.getLoopbackAddress(), BeaconConfig.getUsedPort());
+        closeable = socket;
         in = socket.getInputStream();
         out = socket.getOutputStream();
     }
 
+    public BeaconClient(Closeable closeable, InputStream in, OutputStream out) {
+        this.closeable = closeable;
+        this.in = in;
+        this.out = out;
+    }
+
     public void close() throws ConnectorException {
         try {
-            socket.close();
+            closeable.close();
         } catch (IOException ex) {
-            throw new ConnectorException("Couldn't close socket", ex);
+            throw new ConnectorException("Couldn't close client", ex);
         }
     }
 
@@ -74,7 +80,7 @@ public class BeaconClient implements AutoCloseable {
             if (sep.length != 0 && !Arrays.equals(BODY_SEPARATOR, sep)) {
                 throw new ConnectorException("Invalid body separator");
             }
-            return BeaconFormat.readBlocks(socket);
+            return BeaconFormat.readBlocks(in);
         } catch (IOException ex) {
             throw new ConnectorException(ex);
         }
@@ -83,7 +89,7 @@ public class BeaconClient implements AutoCloseable {
     public OutputStream sendBody() throws ConnectorException {
         try {
             out.write(BODY_SEPARATOR);
-            return BeaconFormat.writeBlocks(socket);
+            return BeaconFormat.writeBlocks(out);
         } catch (IOException ex) {
             throw new ConnectorException(ex);
         }
@@ -106,25 +112,31 @@ public class BeaconClient implements AutoCloseable {
             System.out.println("Sending request to server of type " + req.getClass().getName());
         }
 
-        if (BeaconConfig.printMessages()) {
+        var writer = new StringWriter();
-            System.out.println("Sending raw request:");
+        var mapper = JacksonHelper.newMapper();
-            System.out.println(msg.toPrettyString());
+        try (JsonGenerator g = mapper.createGenerator(writer).setPrettyPrinter(new DefaultPrettyPrinter())) {
+            g.writeTree(msg);
+        } catch (IOException ex) {
+            throw new ConnectorException("Couldn't serialize request", ex);
         }
 
-        try {
+        var content = writer.toString();
-            var mapper = JacksonHelper.newMapper().disable(JsonGenerator.Feature.AUTO_CLOSE_TARGET);
+        if (BeaconConfig.printMessages()) {
-            var gen = mapper.createGenerator(socket.getOutputStream());
+            System.out.println("Sending raw request:");
-            gen.writeTree(msg);
+            System.out.println(content);
+        }
+
+        try (OutputStream blockOut = BeaconFormat.writeBlocks(out)) {
+            blockOut.write(content.getBytes(StandardCharsets.UTF_8));
         } catch (IOException ex) {
             throw new ConnectorException("Couldn't write to socket", ex);
         }
     }
 
     public <T extends ResponseMessage> T receiveResponse() throws ConnectorException, ClientException, ServerException {
-        JsonNode read;
+        JsonNode node;
-        try {
+        try (InputStream blockIn = BeaconFormat.readBlocks(in)) {
-            var in = socket.getInputStream();
+            node = JacksonHelper.newMapper().readTree(blockIn);
-            read = JacksonHelper.newMapper().disable(JsonParser.Feature.AUTO_CLOSE_SOURCE).readTree(in);
         } catch (SocketException ex) {
             throw new ConnectorException("Connection to xpipe daemon closed unexpectedly", ex);
         } catch (IOException ex) {
@@ -133,24 +145,24 @@ public class BeaconClient implements AutoCloseable {
 
         if (BeaconConfig.printMessages()) {
             System.out.println("Received response:");
-            System.out.println(read.toPrettyString());
+            System.out.println(node.toPrettyString());
         }
 
-        if (read.isMissingNode()) {
+        if (node.isMissingNode()) {
             throw new ConnectorException("Received unexpected EOF");
         }
 
-        var se = parseServerError(read);
+        var se = parseServerError(node);
         if (se.isPresent()) {
             se.get().throwError();
         }
 
-        var ce = parseClientError(read);
+        var ce = parseClientError(node);
         if (ce.isPresent()) {
             throw ce.get().throwException();
         }
 
-        return parseResponse(read);
+        return parseResponse(node);
     }
 
     private Optional<ClientErrorMessage> parseClientError(JsonNode node) throws ConnectorException {
@@ -206,4 +218,12 @@ public class BeaconClient implements AutoCloseable {
             throw new ConnectorException("Couldn't parse response", ex);
         }
     }
+
+    public InputStream getRawInputStream() {
+        return in;
+    }
+
+    public OutputStream getRawOutputStream() {
+        return out;
+    }
 }

beacon/src/main/java/io/xpipe/beacon/BeaconConnection.java

@@ -6,22 +6,27 @@ import java.io.OutputStream;
 
 public abstract class BeaconConnection implements AutoCloseable {
 
-    protected BeaconClient socket;
+
+    protected BeaconClient beaconClient;
 
     private InputStream bodyInput;
     private OutputStream bodyOutput;
 
     protected abstract void constructSocket();
 
+    public BeaconClient getBeaconClient() {
+        return beaconClient;
+    }
+
     @Override
     public void close() {
         try {
-            if (socket != null) {
+            if (beaconClient != null) {
-                socket.close();
+                beaconClient.close();
             }
-            socket = null;
+            beaconClient = null;
         } catch (Exception e) {
-            socket = null;
+            beaconClient = null;
             throw new BeaconException("Could not close beacon connection", e);
         }
     }
@@ -43,7 +48,7 @@ public abstract class BeaconConnection implements AutoCloseable {
     }
 
     public void checkClosed() {
-        if (socket == null) {
+        if (beaconClient == null) {
             throw new BeaconException("Socket is closed");
         }
     }
@@ -70,7 +75,8 @@ public abstract class BeaconConnection implements AutoCloseable {
 
     public <REQ extends RequestMessage, RES extends ResponseMessage> void performInputExchange(
             REQ req,
-            BeaconClient.FailableBiConsumer<RES, InputStream, Exception> responseConsumer) {
+            BeaconClient.FailableBiConsumer<RES, InputStream, Exception> responseConsumer
+    ) {
         checkClosed();
 
         performInputOutputExchange(req, null, responseConsumer);
@@ -79,33 +85,35 @@ public abstract class BeaconConnection implements AutoCloseable {
     public <REQ extends RequestMessage, RES extends ResponseMessage> void performInputOutputExchange(
             REQ req,
             BeaconClient.FailableConsumer<OutputStream, IOException> reqWriter,
-            BeaconClient.FailableBiConsumer<RES, InputStream, Exception> responseConsumer) {
+            BeaconClient.FailableBiConsumer<RES, InputStream, Exception> responseConsumer
+    ) {
         checkClosed();
 
         try {
-            socket.sendRequest(req);
+            beaconClient.sendRequest(req);
             if (reqWriter != null) {
-                try (var out = socket.sendBody()) {
+                try (var out = sendBody()) {
                     reqWriter.accept(out);
                 }
             }
-            RES res = socket.receiveResponse();
+            RES res = beaconClient.receiveResponse();
-            try (var in = socket.receiveBody()) {
+            try (var in = receiveBody()) {
                 responseConsumer.accept(res, in);
             }
         } catch (Exception e) {
-            throw new BeaconException("Could not communicate with beacon", e);
+            throw unwrapException(e);
         }
     }
 
     public <REQ extends RequestMessage> void sendRequest(
-            REQ req) {
+            REQ req
+    ) {
         checkClosed();
 
         try {
-            socket.sendRequest(req);
+            beaconClient.sendRequest(req);
         } catch (Exception e) {
-            throw new BeaconException("Could not communicate with beacon", e);
+            throw unwrapException(e);
         }
     }
 
@@ -113,9 +121,9 @@ public abstract class BeaconConnection implements AutoCloseable {
         checkClosed();
 
         try {
-            return socket.receiveResponse();
+            return beaconClient.receiveResponse();
         } catch (Exception e) {
-            throw new BeaconException("Could not communicate with beacon", e);
+            throw unwrapException(e);
         }
     }
 
@@ -123,10 +131,10 @@ public abstract class BeaconConnection implements AutoCloseable {
         checkClosed();
 
         try {
-            bodyOutput = socket.sendBody();
+            bodyOutput = beaconClient.sendBody();
             return bodyOutput;
         } catch (Exception e) {
-            throw new BeaconException("Could not communicate with beacon", e);
+            throw unwrapException(e);
         }
     }
 
@@ -134,38 +142,57 @@ public abstract class BeaconConnection implements AutoCloseable {
         checkClosed();
 
         try {
-            bodyInput = socket.receiveBody();
+            bodyInput = beaconClient.receiveBody();
             return bodyInput;
         } catch (Exception e) {
-            throw new BeaconException("Could not communicate with beacon", e);
+            throw unwrapException(e);
         }
     }
 
     public <REQ extends RequestMessage, RES extends ResponseMessage> RES performOutputExchange(
             REQ req,
-            BeaconClient.FailableConsumer<OutputStream, Exception> reqWriter) {
+            BeaconClient.FailableConsumer<OutputStream, Exception> reqWriter
+    ) {
         checkClosed();
 
         try {
-            socket.sendRequest(req);
+            beaconClient.sendRequest(req);
-            try (var out = socket.sendBody()) {
+            try (var out = sendBody()) {
                 reqWriter.accept(out);
             }
-            return socket.receiveResponse();
+            return beaconClient.receiveResponse();
         } catch (Exception e) {
-            throw new BeaconException("Could not communicate with beacon", e);
+            throw unwrapException(e);
         }
     }
 
     public <REQ extends RequestMessage, RES extends ResponseMessage> RES performSimpleExchange(
-            REQ req) {
+            REQ req
+    ) {
         checkClosed();
 
         try {
-            socket.sendRequest(req);
+            beaconClient.sendRequest(req);
-            return socket.receiveResponse();
+            return beaconClient.receiveResponse();
         } catch (Exception e) {
-            throw new BeaconException("Could not communicate with beacon", e);
+            throw unwrapException(e);
         }
     }
+
+    private BeaconException unwrapException(Exception exception) {
+        if (exception instanceof ServerException s) {
+            return new BeaconException("And internal server error occurred", s.getCause());
+        }
+
+        if (exception instanceof ClientException s) {
+            return new BeaconException("A client error occurred", s.getCause());
+        }
+
+        if (exception instanceof ConnectorException s) {
+            return new BeaconException("A beacon connection error occurred", s.getCause());
+        }
+
+
+        return new BeaconException("An unexpected error occurred", exception);
+    }
 }

beacon/src/main/java/io/xpipe/beacon/BeaconFormat.java

@@ -5,7 +5,6 @@ import lombok.experimental.UtilityClass;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
-import java.net.Socket;
 import java.nio.ByteBuffer;
 
 @UtilityClass
@@ -13,8 +12,7 @@ public class BeaconFormat {
 
     private static final int SEGMENT_SIZE = 65536;
 
-    public static OutputStream writeBlocks(Socket socket) throws IOException {
+    public static OutputStream writeBlocks(OutputStream out) throws IOException {
-        var out = socket.getOutputStream();
         return new OutputStream() {
             private final byte[] currentBytes = new byte[SEGMENT_SIZE];
             private int index;
@@ -23,6 +21,7 @@ public class BeaconFormat {
             public void close() throws IOException {
                 finishBlock();
                 out.flush();
+                index = -1;
             }
 
             @Override
@@ -49,8 +48,7 @@ public class BeaconFormat {
         };
     }
 
-    public static InputStream readBlocks(Socket socket) throws IOException {
+    public static InputStream readBlocks(InputStream in) throws IOException {
-        var in = socket.getInputStream();
         return new InputStream() {
 
             private byte[] currentBytes;
@@ -60,7 +58,9 @@ public class BeaconFormat {
             @Override
             public int read() throws IOException {
                 if ((currentBytes == null || index == currentBytes.length) && !lastBlock) {
-                    readBlock();
+                    if (!readBlock()) {
+                        return -1;
+                    }
                 }
 
                 if (currentBytes != null && index == currentBytes.length && lastBlock) {
@@ -72,8 +72,12 @@ public class BeaconFormat {
                 return out;
             }
 
-            private void readBlock() throws IOException {
+            private boolean readBlock() throws IOException {
                 var length = in.readNBytes(4);
+                if (length.length < 4) {
+                    return false;
+                }
+
                 var lengthInt = ByteBuffer.wrap(length).getInt();
 
                 if (BeaconConfig.printMessages()) {
@@ -85,6 +89,7 @@ public class BeaconFormat {
                 if (lengthInt < SEGMENT_SIZE) {
                     lastBlock = true;
                 }
+                return true;
             }
         };
     }

beacon/src/main/java/io/xpipe/beacon/XPipeInstance.java

@@ -0,0 +1,17 @@
+package io.xpipe.beacon;
+
+import io.xpipe.core.store.ShellStore;
+import lombok.Value;
+
+import java.util.List;
+import java.util.Map;
+import java.util.UUID;
+
+@Value
+public class XPipeInstance {
+
+    UUID uuid;
+    String name;
+    Map<ShellStore, XPipeInstance> adjacent;
+    List<XPipeInstance> reachable;
+}

beacon/src/main/java/io/xpipe/beacon/exchange/cli/InstanceExchange.java

@@ -0,0 +1,33 @@
+package io.xpipe.beacon.exchange.cli;
+
+import io.xpipe.beacon.RequestMessage;
+import io.xpipe.beacon.ResponseMessage;
+import io.xpipe.beacon.XPipeInstance;
+import io.xpipe.beacon.exchange.MessageExchange;
+import lombok.Builder;
+import lombok.NonNull;
+import lombok.Value;
+import lombok.extern.jackson.Jacksonized;
+
+public class InstanceExchange implements MessageExchange {
+
+    @Override
+    public String getId() {
+        return "instance";
+    }
+
+    @Jacksonized
+    @Builder
+    @Value
+    public static class Request implements RequestMessage {
+
+    }
+
+    @Jacksonized
+    @Builder
+    @Value
+    public static class Response implements ResponseMessage {
+        @NonNull
+        XPipeInstance instance;
+    }
+}

beacon/src/main/java/module-info.java

@@ -23,6 +23,7 @@ module io.xpipe.beacon {
     uses MessageExchange;
     provides io.xpipe.beacon.exchange.MessageExchange with
             ForwardExchange,
+            InstanceExchange,
             EditStoreExchange,
             AddSourceExchange,
             StoreProviderListExchange,

core/build.gradle

@@ -9,6 +9,9 @@ apply from: "$rootDir/deps/java.gradle"
 apply from: "$rootDir/deps/lombok.gradle"
 apply from: "$rootDir/deps/junit.gradle"
 
+compileJava {
+    options.compilerArgs << '-parameters'
+}
 
 dependencies{
     api group: 'com.fasterxml.jackson.core', name: 'jackson-databind', version: "2.13.0"

core/src/main/java/io/xpipe/core/data/generic/GenericArrayReader.java

@@ -74,9 +74,9 @@ public class GenericArrayReader implements GenericAbstractReader {
     }
 
     @Override
-    public void onArrayEnd() {
+    public void onArrayEnd(Map<Integer, String> metaAttributes) {
         if (hasReader()) {
-            currentReader.onArrayEnd();
+            currentReader.onArrayEnd(metaAttributes);
             if (currentReader.isDone()) {
                 put(currentReader.create());
                 currentReader = null;
@@ -114,9 +114,9 @@ public class GenericArrayReader implements GenericAbstractReader {
     }
 
     @Override
-    public void onTupleEnd() {
+    public void onTupleEnd(Map<Integer, String> metaAttributes) {
         if (hasReader()) {
-            currentReader.onTupleEnd();
+            currentReader.onTupleEnd(metaAttributes);
             if (currentReader.isDone()) {
                 put(currentReader.create());
                 currentReader = null;

core/src/main/java/io/xpipe/core/data/generic/GenericDataStreamCallback.java

@@ -10,13 +10,13 @@ public interface GenericDataStreamCallback {
     default void onArrayStart(int length) {
     }
 
-    default void onArrayEnd() {
+    default void onArrayEnd(Map<Integer, String> metaAttributes) {
     }
 
     default void onTupleStart(int length) {
     }
 
-    default void onTupleEnd() {
+    default void onTupleEnd(Map<Integer, String> metaAttributes) {
     }
 
 

core/src/main/java/io/xpipe/core/data/generic/GenericDataStreamParser.java

@@ -67,7 +67,7 @@ public class GenericDataStreamParser {
             parse(in, cb);
         }
         var attributes = DataStructureNodeIO.parseAttributes(in);
-        cb.onTupleEnd();
+        cb.onTupleEnd(attributes);
     }
 
     private static void parseArray(InputStream in, GenericDataStreamCallback cb) throws IOException {
@@ -77,7 +77,7 @@ public class GenericDataStreamParser {
             parse(in, cb);
         }
         var attributes = DataStructureNodeIO.parseAttributes(in);
-        cb.onArrayEnd();
+        cb.onArrayEnd(attributes);
     }
 
     private static void parseValue(InputStream in, GenericDataStreamCallback cb) throws IOException {

core/src/main/java/io/xpipe/core/data/generic/GenericDataStreamWriter.java

@@ -52,8 +52,8 @@ public class GenericDataStreamWriter {
 
     private static void writeValue(OutputStream out, ValueNode n) throws IOException {
         out.write(DataStructureNodeIO.GENERIC_VALUE_ID);
-        DataStructureNodeIO.writeShort(out, n.getRawData().length);
+        var length = DataStructureNodeIO.writeShort(out, n.getRawData().length);
-        out.write(n.getRawData());
+        out.write(n.getRawData(), 0, length);
         DataStructureNodeIO.writeAttributes(out, n);
     }
 }

core/src/main/java/io/xpipe/core/data/generic/GenericDataStructureNodeReader.java

@@ -44,12 +44,12 @@ public class GenericDataStructureNodeReader implements GenericDataStreamCallback
     }
 
     @Override
-    public void onArrayEnd() {
+    public void onArrayEnd(Map<Integer, String> metaAttributes) {
         if (!hasReader()) {
             throw new IllegalStateException("No array to close");
         }
 
-        reader.onArrayEnd();
+        reader.onArrayEnd(metaAttributes);
         if (reader.isDone()) {
             node = reader.create();
             reader = null;
@@ -67,12 +67,12 @@ public class GenericDataStructureNodeReader implements GenericDataStreamCallback
     }
 
     @Override
-    public void onTupleEnd() {
+    public void onTupleEnd(Map<Integer, String> metaAttributes) {
         if (!hasReader()) {
             throw new IllegalStateException("No tuple to close");
         }
 
-        reader.onTupleEnd();
+        reader.onTupleEnd(metaAttributes);
         if (reader.isDone()) {
             node = reader.create();
             reader = null;

core/src/main/java/io/xpipe/core/data/generic/GenericTupleReader.java

@@ -89,9 +89,9 @@ public class GenericTupleReader implements GenericAbstractReader {
     }
 
     @Override
-    public void onArrayEnd() {
+    public void onArrayEnd(Map<Integer, String> metaAttributes) {
         if (hasReader()) {
-            currentReader.onArrayEnd();
+            currentReader.onArrayEnd(metaAttributes);
             if (currentReader.isDone()) {
                 putNode(currentReader.create());
                 currentReader = null;
@@ -118,9 +118,9 @@ public class GenericTupleReader implements GenericAbstractReader {
     }
 
     @Override
-    public void onTupleEnd() {
+    public void onTupleEnd(Map<Integer, String> metaAttributes) {
         if (hasReader()) {
-            currentReader.onTupleEnd();
+            currentReader.onTupleEnd(metaAttributes);
             if (currentReader.isDone()) {
                 putNode(currentReader.create());
                 currentReader = null;

core/src/main/java/io/xpipe/core/data/node/DataStructureNode.java

@@ -12,18 +12,26 @@ public abstract class DataStructureNode implements Iterable<DataStructureNode> {
     public static final Integer KEY_TABLE_NAME = 1;
     public static final Integer KEY_ROW_NAME = 2;
     public static final Integer BOOLEAN_TRUE = 3;
-    public static final Integer BOOLEAN_VALUE = 4;
+    public static final Integer IS_BOOLEAN = 4;
     public static final Integer BOOLEAN_FALSE = 5;
     public static final Integer INTEGER_VALUE = 6;
-    public static final Integer NULL_VALUE = 7;
+    public static final Integer IS_NULL = 7;
-    public static final Integer IS_NUMBER = 8;
     public static final Integer IS_INTEGER = 9;
     public static final Integer IS_FLOATING_POINT = 10;
     public static final Integer FLOATING_POINT_VALUE = 11;
-    public static final Integer TEXT = 12;
+    public static final Integer IS_TEXT = 12;
+    public static final Integer IS_INSTANT = 13;
+    public static final Integer IS_BINARY = 14;
 
     private Map<Integer, String> metaAttributes;
 
+    public void clearMetaAttributes() {
+        metaAttributes = null;
+        if (isTuple() || isArray()) {
+            getNodes().forEach(dataStructureNode -> dataStructureNode.clearMetaAttributes());
+        }
+    }
+
     public Map<Integer, String> getMetaAttributes() {
         return metaAttributes != null ? Collections.unmodifiableMap(metaAttributes) : null;
     }
@@ -138,12 +146,6 @@ public abstract class DataStructureNode implements Iterable<DataStructureNode> {
     public boolean isValue() {
         return false;
     }
-
-    public boolean isNull() {
-        return false;
-    }
-
-
     public DataStructureNode set(int index, DataStructureNode node) {
         throw unsupported("set at index");
     }

core/src/main/java/io/xpipe/core/data/node/DataStructureNodeIO.java

@@ -22,18 +22,25 @@ public class DataStructureNodeIO {
     public static final int TYPED_ARRAY_ID = 7;
     public static final int TYPED_VALUE_ID = 8;
 
-    public static void writeShort(OutputStream out, int value) throws IOException {
+    public static int writeShort(OutputStream out, int value) throws IOException {
+        if (value > Short.MAX_VALUE) {
+            value = Short.MAX_VALUE;
+        }
+
         var buffer = ByteBuffer.allocate(2);
         buffer.order(ByteOrder.LITTLE_ENDIAN);
         buffer.putShort((short) value);
         out.write(buffer.array());
+        return value;
     }
 
     public static void writeString(OutputStream out, String s) throws IOException {
         if (s != null) {
             var b = s.getBytes(StandardCharsets.UTF_8);
-            DataStructureNodeIO.writeShort(out, b.length);
+            var length = DataStructureNodeIO.writeShort(out, b.length);
-            out.write(b);
+            out.write(b, 0, length);
+        } else {
+            writeShort(out, -1);
         }
     }
 
@@ -50,6 +57,10 @@ public class DataStructureNodeIO {
 
     public static String parseString(InputStream in) throws IOException {
         var nameLength = parseShort(in);
+        if (nameLength == -1) {
+            return null;
+        }
+
         var name = new String(in.readNBytes(nameLength), StandardCharsets.UTF_8);
         return name;
     }
@@ -74,13 +85,11 @@ public class DataStructureNodeIO {
             writeShort(out, s.getMetaAttributes().size());
             for (Map.Entry<Integer, String> entry : s.getMetaAttributes().entrySet()) {
                 Integer integer = entry.getKey();
-                var value = entry.getValue().getBytes(StandardCharsets.UTF_8);
                 writeShort(out, integer);
-                writeShort(out, value.length);
+                writeString(out, entry.getValue());
-                out.write(value);
             }
         } else {
-            out.write(0);
+            writeShort(out, 0);
         }
     }
 }

core/src/main/java/io/xpipe/core/data/node/SimpleImmutableValueNode.java

@@ -18,7 +18,7 @@ public class SimpleImmutableValueNode extends ValueNode {
 
     @Override
     public final String asString() {
-        if (getRawData().length == 0 && !hasMetaAttribute(TEXT)) {
+        if (getRawData().length == 0 && !hasMetaAttribute(IS_TEXT)) {
             return "null";
         }
 
@@ -27,8 +27,8 @@ public class SimpleImmutableValueNode extends ValueNode {
 
     @Override
     public String toString(int indent) {
-        var string = getRawData().length == 0 && !hasMetaAttribute(TEXT) ? "<null>" : new String(getRawData(), StandardCharsets.UTF_8);
+        var string = getRawData().length == 0 && !hasMetaAttribute(IS_TEXT) ? "<null>" : new String(getRawData(), StandardCharsets.UTF_8);
-        return (hasMetaAttribute(TEXT) ? "\"" : "") + string + (hasMetaAttribute(TEXT) ? "\"" : "") + " " + metaToString();
+        return (hasMetaAttribute(IS_TEXT) ? "\"" : "") + string + (hasMetaAttribute(IS_TEXT) ? "\"" : "") + " " + metaToString();
     }
 
     @Override

core/src/main/java/io/xpipe/core/data/node/TupleNode.java

@@ -20,6 +20,7 @@ public abstract class TupleNode extends DataStructureNode {
         return new SimpleTupleNode(null, nodes);
     }
 
+    @SuppressWarnings("unchecked")
     public static TupleNode of(List<String> names, List<? extends DataStructureNode> nodes) {
         if (names == null) {
             throw new IllegalArgumentException("Names must be not null");

core/src/main/java/io/xpipe/core/data/node/ValueNode.java

@@ -3,6 +3,8 @@ package io.xpipe.core.data.node;
 import io.xpipe.core.data.type.DataType;
 import io.xpipe.core.data.type.ValueType;
 
+import java.math.BigDecimal;
+import java.math.BigInteger;
 import java.nio.charset.StandardCharsets;
 import java.util.Arrays;
 import java.util.Objects;
@@ -34,13 +36,40 @@ public abstract class ValueNode extends DataStructureNode {
     }
 
     public static ValueNode nullValue() {
-        return new SimpleImmutableValueNode(new byte[0]).tag(NULL_VALUE).asValue();
+        return new SimpleImmutableValueNode(new byte[0]).tag(IS_NULL).asValue();
     }
 
     public static ValueNode of(byte[] data) {
+        if (data == null) {
+            return nullValue();
+        }
+
         return new SimpleImmutableValueNode(data);
     }
 
+    public static ValueNode ofBytes(byte[] data) {
+        var created = of(data);
+        created.tag(IS_BINARY);
+        return created;
+    }
+
+    public static ValueNode ofInteger(BigInteger integer) {
+        var created = of(integer);
+        created.tag(IS_INTEGER);
+        return created;
+    }
+
+    public static ValueNode ofDecimal(BigDecimal decimal) {
+        var created = of(decimal);
+        created.tag(IS_FLOATING_POINT);
+        return created;
+    }
+    public static ValueNode ofBoolean(Boolean bool) {
+        var created = of(bool);
+        created.tag(IS_BOOLEAN);
+        return created;
+    }
+
     public static ValueNode of(Object o) {
         if (o == null) {
             return nullValue();

core/src/main/java/io/xpipe/core/data/typed/TypedDataStreamCallback.java

@@ -3,9 +3,11 @@ package io.xpipe.core.data.typed;
 import io.xpipe.core.data.node.DataStructureNode;
 import io.xpipe.core.data.type.TupleType;
 
+import java.util.Map;
+
 public interface TypedDataStreamCallback {
 
-    default void onValue(byte[] data) {
+    default void onValue(byte[] data, Map<Integer, String> metaAttributes) {
     }
 
     default void onGenericNode(DataStructureNode node) {
@@ -14,13 +16,13 @@ public interface TypedDataStreamCallback {
     default void onTupleBegin(TupleType type) {
     }
 
-    default void onTupleEnd() {
+    default void onTupleEnd(Map<Integer, String> metaAttributes) {
     }
 
     default void onArrayBegin(int size) {
     }
 
-    default void onArrayEnd() {
+    default void onArrayEnd(Map<Integer, String> metaAttributes) {
     }
 
     default void onNodeBegin() {

core/src/main/java/io/xpipe/core/data/typed/TypedDataStreamParser.java

@@ -21,7 +21,7 @@ public class TypedDataStreamParser {
         this.dataType = dataType;
     }
 
-    public boolean hasNext(InputStream in) throws IOException {
+    private  boolean hasNext(InputStream in) throws IOException {
         var b = in.read();
         if (b == -1) {
             return false;
@@ -109,7 +109,8 @@ public class TypedDataStreamParser {
         for (int i = 0; i < type.getSize(); i++) {
             parse(in, cb, type.getTypes().get(i));
         }
-        cb.onTupleEnd();
+        var attributes = DataStructureNodeIO.parseAttributes(in);
+        cb.onTupleEnd(attributes);
     }
 
     private GenericDataStructureNodeReader getGenericReader() {
@@ -125,12 +126,14 @@ public class TypedDataStreamParser {
         for (int i = 0; i < size; i++) {
             parse(in, cb, type.getSharedType());
         }
-        cb.onArrayEnd();
+        var attributes = DataStructureNodeIO.parseAttributes(in);
+        cb.onArrayEnd(attributes);
     }
 
     private void parseValue(InputStream in, TypedDataStreamCallback cb) throws IOException {
         var size = DataStructureNodeIO.parseShort(in);
         var data = in.readNBytes(size);
-        cb.onValue(data);
+        var attributes = DataStructureNodeIO.parseAttributes(in);
+        cb.onValue(data, attributes);
     }
 }

core/src/main/java/io/xpipe/core/data/typed/TypedDataStreamWriter.java

@@ -32,8 +32,9 @@ public class TypedDataStreamWriter {
 
     private static void writeValue(OutputStream out, ValueNode n) throws IOException {
         out.write(DataStructureNodeIO.TYPED_VALUE_ID);
-        DataStructureNodeIO.writeShort(out, n.getRawData().length);
+        var length = DataStructureNodeIO.writeShort(out, n.getRawData().length);
-        out.write(n.getRawData());
+        out.write(n.getRawData(), 0, length);
+        DataStructureNodeIO.writeAttributes(out, n);
     }
 
     private static void writeTuple(OutputStream out, TupleNode tuple, TupleType type) throws IOException {
@@ -45,6 +46,7 @@ public class TypedDataStreamWriter {
         for (int i = 0; i < tuple.size(); i++) {
             write(out, tuple.at(i), type.getTypes().get(i));
         }
+        DataStructureNodeIO.writeAttributes(out, tuple);
     }
 
     private static void writeArray(OutputStream out, ArrayNode array, ArrayType type) throws IOException {
@@ -53,5 +55,6 @@ public class TypedDataStreamWriter {
         for (int i = 0; i < array.size(); i++) {
             write(out, array.at(i), type.getSharedType());
         }
+        DataStructureNodeIO.writeAttributes(out, array);
     }
 }

core/src/main/java/io/xpipe/core/data/typed/TypedDataStructureNodeReader.java

@@ -7,6 +7,7 @@ import io.xpipe.core.data.type.TupleType;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Map;
 import java.util.Stack;
 
 public class TypedDataStructureNodeReader implements TypedAbstractReader {
@@ -74,12 +75,12 @@ public class TypedDataStructureNodeReader implements TypedAbstractReader {
     }
 
     @Override
-    public void onValue(byte[] data) {
+    public void onValue(byte[] data, Map<Integer, String> metaAttributes) {
         if (!expectedType.isValue()) {
             throw new IllegalStateException("Expected " + expectedType.getName() + " but got value");
         }
 
-        var val = ValueNode.of(data);
+        var val = ValueNode.of(data).tag(metaAttributes);
         finishNode(val);
         moveExpectedType(false);
     }
@@ -115,14 +116,14 @@ public class TypedDataStructureNodeReader implements TypedAbstractReader {
     }
 
     @Override
-    public void onTupleEnd() {
+    public void onTupleEnd(Map<Integer, String> metaAttributes) {
         children.pop();
         var popped = nodes.pop();
         if (!popped.isTuple()) {
             throw new IllegalStateException("No tuple to end");
         }
 
-        TupleNode tuple = popped.asTuple();
+        TupleNode tuple = popped.tag(metaAttributes).asTuple();
         if (tuple.getKeyNames().size() != tuple.getNodes().size()) {
             throw new IllegalStateException("Tuple node size mismatch");
         }
@@ -154,7 +155,7 @@ public class TypedDataStructureNodeReader implements TypedAbstractReader {
     }
 
     @Override
-    public void onArrayEnd() {
+    public void onArrayEnd(Map<Integer, String> metaAttributes) {
         if (!isInArray()) {
             throw new IllegalStateException("No array to end");
         }
@@ -163,7 +164,7 @@ public class TypedDataStructureNodeReader implements TypedAbstractReader {
         moveExpectedType(true);
 
         children.pop();
-        var popped = nodes.pop();
+        var popped = nodes.pop().tag(metaAttributes);
         finishNode(popped);
     }
 }

core/src/main/java/io/xpipe/core/dialog/Dialog.java

@@ -1,6 +1,6 @@
 package io.xpipe.core.dialog;
 
-import io.xpipe.core.util.Secret;
+import io.xpipe.core.util.SecretValue;
 
 import java.util.*;
 import java.util.function.Consumer;
@@ -164,7 +164,7 @@ public abstract class Dialog {
     /**
      * A special wrapper for secret values of {@link #query(String, boolean, boolean, boolean, Object, QueryConverter)}.
      */
-    public static Dialog.Query querySecret(String description, boolean newLine, boolean required, Secret value) {
+    public static Dialog.Query querySecret(String description, boolean newLine, boolean required, SecretValue value) {
         var q = new Dialog.Query(description, newLine, required, false, value, QueryConverter.SECRET, true);
         q.evaluateTo(q::getConvertedValue);
         return q;

core/src/main/java/io/xpipe/core/dialog/QueryConverter.java

@@ -2,7 +2,7 @@ package io.xpipe.core.dialog;
 
 import io.xpipe.core.charsetter.NewLine;
 import io.xpipe.core.charsetter.StreamCharset;
-import io.xpipe.core.util.Secret;
+import io.xpipe.core.util.SecretValue;
 
 import java.net.URI;
 import java.net.URISyntaxException;
@@ -48,14 +48,14 @@ public abstract class QueryConverter<T> {
         }
     };
 
-    public static final QueryConverter<Secret> SECRET = new QueryConverter<Secret>() {
+    public static final QueryConverter<SecretValue> SECRET = new QueryConverter<SecretValue>() {
         @Override
-        protected Secret fromString(String s) {
+        protected SecretValue fromString(String s) {
-            return new Secret(s);
+            return new SecretValue(s);
         }
 
         @Override
-        protected String toString(Secret value) {
+        protected String toString(SecretValue value) {
             return value.getEncryptedValue();
         }
     };

core/src/main/java/io/xpipe/core/impl/BatchTableWriteConnection.java

@@ -0,0 +1,48 @@
+package io.xpipe.core.impl;
+
+import io.xpipe.core.data.node.ArrayNode;
+import io.xpipe.core.data.node.DataStructureNode;
+import io.xpipe.core.data.node.DataStructureNodeAcceptor;
+import io.xpipe.core.data.node.TupleNode;
+import io.xpipe.core.source.TableWriteConnection;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public abstract class BatchTableWriteConnection implements TableWriteConnection {
+
+    public static final int BATCH_SIZE = 2000;
+
+    private final List<DataStructureNode> batch = new ArrayList<>();
+
+    @Override
+    public final DataStructureNodeAcceptor<TupleNode> writeLinesAcceptor() {
+        return node -> {
+            if (batch.size() < BATCH_SIZE) {
+                batch.add(node);
+                return true;
+            }
+
+            var array = ArrayNode.of(batch);
+            var returned = writeBatchLinesAcceptor().accept(array);
+            batch.clear();
+            return returned;
+        };
+    }
+
+    @Override
+    public final void close() throws Exception {
+        if (batch.size() > 0) {
+            var array = ArrayNode.of(batch);
+            var returned = writeBatchLinesAcceptor().accept(array);
+            batch.clear();
+        }
+        onClose();
+    }
+
+    protected abstract void onClose() throws Exception;
+
+    protected abstract DataStructureNodeAcceptor<ArrayNode> writeBatchLinesAcceptor();
+}
+
+

core/src/main/java/io/xpipe/core/impl/BinarySource.java

@@ -0,0 +1,67 @@
+package io.xpipe.core.impl;
+
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import io.xpipe.core.source.RawDataSource;
+import io.xpipe.core.source.RawReadConnection;
+import io.xpipe.core.source.RawWriteConnection;
+import io.xpipe.core.store.StreamDataStore;
+import lombok.experimental.SuperBuilder;
+
+import java.io.InputStream;
+import java.io.OutputStream;
+
+@JsonTypeName("binary")
+@SuperBuilder
+public class BinarySource extends RawDataSource<StreamDataStore> {
+
+    @Override
+    protected RawWriteConnection newWriteConnection() {
+        return new RawWriteConnection() {
+
+            private OutputStream out;
+
+            @Override
+            public void init() throws Exception {
+                out = getStore().openOutput();
+            }
+
+            @Override
+            public void close() throws Exception {
+                out.close();
+            }
+
+            @Override
+            public void write(byte[] bytes) throws Exception {
+                out.write(bytes);
+            }
+        };
+    }
+
+
+    @Override
+    protected RawReadConnection newReadConnection() {
+        return new RawReadConnection() {
+
+            private InputStream inputStream;
+
+            @Override
+            public void init() throws Exception {
+                if (inputStream != null) {
+                    throw new IllegalStateException("Already initialized");
+                }
+
+                inputStream = getStore().openInput();
+            }
+
+            @Override
+            public void close() throws Exception {
+                inputStream.close();
+            }
+
+            @Override
+            public byte[] readBytes(int max) throws Exception {
+                return inputStream.readNBytes(max);
+            }
+        };
+    }
+}

core/src/main/java/io/xpipe/core/impl/LimitTableReadConnection.java

@@ -0,0 +1,59 @@
+package io.xpipe.core.impl;
+
+import io.xpipe.core.data.node.DataStructureNodeAcceptor;
+import io.xpipe.core.data.node.TupleNode;
+import io.xpipe.core.data.type.TupleType;
+import io.xpipe.core.source.TableReadConnection;
+
+import java.util.OptionalInt;
+import java.util.concurrent.atomic.AtomicInteger;
+
+public class LimitTableReadConnection implements TableReadConnection {
+
+    private final TableReadConnection connection;
+    private final int maxCount;
+    private int count = 0;
+
+    public LimitTableReadConnection(TableReadConnection connection, int maxCount) {
+        this.connection = connection;
+        this.maxCount = maxCount;
+    }
+
+    @Override
+    public void init() throws Exception {
+        connection.init();
+    }
+
+    @Override
+    public void close() throws Exception {
+        connection.close();
+    }
+
+    @Override
+    public TupleType getDataType() {
+        return connection.getDataType();
+    }
+
+    @Override
+    public OptionalInt getRowCount() throws Exception {
+        return connection.getRowCount();
+    }
+
+    @Override
+    public int withRows(DataStructureNodeAcceptor<TupleNode> lineAcceptor) throws Exception {
+        AtomicInteger localCounter = new AtomicInteger();
+        connection.withRows(node -> {
+            if (count == maxCount) {
+                return false;
+            }
+            count++;
+
+            var returned =  lineAcceptor
+                    .accept(node);
+            localCounter.getAndIncrement();
+
+            return returned;
+        });
+        return localCounter.get();
+    }
+}

core/src/main/java/io/xpipe/core/impl/TextSource.java

@@ -1,37 +1,34 @@
 package io.xpipe.core.impl;
 
-import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonTypeName;
 import io.xpipe.core.charsetter.Charsettable;
 import io.xpipe.core.charsetter.NewLine;
 import io.xpipe.core.charsetter.StreamCharset;
 import io.xpipe.core.source.TextDataSource;
 import io.xpipe.core.store.StreamDataStore;
-import lombok.EqualsAndHashCode;
+import lombok.Getter;
-import lombok.Value;
+import lombok.experimental.SuperBuilder;
+import lombok.extern.jackson.Jacksonized;
 
-@Value
+@Getter
-@EqualsAndHashCode(callSuper = true)
+@JsonTypeName("text")
-public class TextSource extends TextDataSource<StreamDataStore> implements Charsettable {
+@SuperBuilder
+@Jacksonized
+public final  class TextSource extends TextDataSource<StreamDataStore> implements Charsettable {
 
-    StreamCharset charset;
+    private final StreamCharset charset;
-    NewLine newLine;
+    private final NewLine newLine;
-
-    public TextSource(StreamDataStore store){
-        this(store, StreamCharset.UTF8, NewLine.LF);
-    }
-
-   @JsonCreator
-    public TextSource(StreamDataStore store, StreamCharset charset, NewLine newLine) {
-        super(store);
-        this.charset = charset;
-        this.newLine = newLine;
-    }
 
     @Override
     protected io.xpipe.core.source.TextWriteConnection newWriteConnection() {
         return new TextWriteConnection(this);
     }
 
+    @Override
+    protected io.xpipe.core.source.TextWriteConnection newPrependingWriteConnection() {
+        return new PreservingTextWriteConnection(this, newWriteConnection(), false);
+    }
+
     @Override
     protected io.xpipe.core.source.TextWriteConnection newAppendingWriteConnection() {
         return new PreservingTextWriteConnection(this, newWriteConnection(), true);

core/src/main/java/io/xpipe/core/impl/XpbsSource.java

@@ -0,0 +1,23 @@
+package io.xpipe.core.impl;
+
+import com.fasterxml.jackson.annotation.JsonTypeName;
+import io.xpipe.core.source.StructureDataSource;
+import io.xpipe.core.source.StructureReadConnection;
+import io.xpipe.core.source.StructureWriteConnection;
+import io.xpipe.core.store.StreamDataStore;
+import lombok.experimental.SuperBuilder;
+
+@JsonTypeName("xpbs")
+@SuperBuilder
+public class XpbsSource extends StructureDataSource<StreamDataStore> {
+
+    @Override
+    protected StructureWriteConnection newWriteConnection() {
+        return null;
+    }
+
+    @Override
+    protected StructureReadConnection newReadConnection() {
+        return null;
+    }
+}

core/src/main/java/io/xpipe/core/impl/XpbtReadConnection.java

@@ -1,5 +1,6 @@
 package io.xpipe.core.impl;
 
+import com.fasterxml.jackson.annotation.JsonTypeName;
 import com.fasterxml.jackson.core.JsonParser;
 import com.fasterxml.jackson.core.type.TypeReference;
 import io.xpipe.core.data.node.DataStructureNodeAcceptor;
@@ -33,10 +34,11 @@ public class XpbtReadConnection implements TableReadConnection {
         }
 
         var headerLength = header.getBytes(StandardCharsets.UTF_8).length;
-        this.inputStream.skip(headerLength);
+        this.inputStream.skip(headerLength + 1);
         List<String> names = JacksonHelper.newMapper()
                 .disable(JsonParser.Feature.AUTO_CLOSE_SOURCE)
-                .readerFor(new TypeReference<List<String>>(){}).readValue(header);
+                .readerFor(new TypeReference<List<String>>() {
+                }).readValue(header);
         TupleType dataType = TupleType.tableType(names);
         this.dataType = dataType;
         this.parser = new TypedDataStreamParser(dataType);
@@ -63,14 +65,15 @@ public class XpbtReadConnection implements TableReadConnection {
     }
 
     @Override
-    public void withRows(DataStructureNodeAcceptor<TupleNode> lineAcceptor) throws Exception {
+    public int withRows(DataStructureNodeAcceptor<TupleNode> lineAcceptor) throws Exception {
         if (empty) {
-            return;
+            return 0;
         }
 
         var reader = TypedDataStructureNodeReader.of(dataType);
         AtomicBoolean quit = new AtomicBoolean(false);
         AtomicReference<Exception> exception = new AtomicReference<>();
+        var counter = 0;
         while (!quit.get()) {
             var node = parser.parseStructure(inputStream, reader);
             if (node == null) {
@@ -82,6 +85,7 @@ public class XpbtReadConnection implements TableReadConnection {
                 if (!lineAcceptor.accept(node.asTuple())) {
                     quit.set(true);
                 }
+                counter++;
             } catch (Exception ex) {
                 quit.set(true);
                 exception.set(ex);
@@ -91,5 +95,6 @@ public class XpbtReadConnection implements TableReadConnection {
         if (exception.get() != null) {
             throw exception.get();
         }
+        return counter;
     }
 }

core/src/main/java/io/xpipe/core/impl/XpbtSource.java

@@ -1,18 +1,16 @@
 package io.xpipe.core.impl;
 
-import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonTypeName;
 import io.xpipe.core.source.TableDataSource;
 import io.xpipe.core.source.TableReadConnection;
 import io.xpipe.core.source.TableWriteConnection;
 import io.xpipe.core.store.StreamDataStore;
+import lombok.experimental.SuperBuilder;
 
+@JsonTypeName("xpbt")
+@SuperBuilder
 public class XpbtSource extends TableDataSource<StreamDataStore> {
 
-    @JsonCreator
-    public XpbtSource(StreamDataStore store) {
-        super(store);
-    }
-
     @Override
     protected TableWriteConnection newWriteConnection() {
         return new XpbtWriteConnection(store);

core/src/main/java/io/xpipe/core/impl/XpbtWriteConnection.java

@@ -60,6 +60,8 @@ public class XpbtWriteConnection implements TableWriteConnection {
                 .setPrettyPrinter(new DefaultPrettyPrinter())) {
             JacksonHelper.newMapper().disable(JsonGenerator.Feature.AUTO_CLOSE_TARGET)
                     .writeValue(g, tupleNode.getKeyNames());
-        }
+            writer.append("\n");
+        }
+        writer.flush();
     }
 }

core/src/main/java/io/xpipe/core/source/CollectionDataSource.java

@@ -1,19 +1,17 @@
 package io.xpipe.core.source;
 
 import io.xpipe.core.store.DataStore;
+import lombok.Singular;
+import lombok.experimental.SuperBuilder;
 
-import java.util.HashMap;
 import java.util.Map;
 
+@SuperBuilder
 public abstract class CollectionDataSource<DS extends DataStore> extends DataSource<DS> {
 
+    @Singular
     private final Map<String, String> preferredProviders;
 
-    public CollectionDataSource(DS store) {
-        super(store);
-        this.preferredProviders = new HashMap<>();
-    }
-
     public CollectionDataSource<DS> annotate(String file, String provider) {
         preferredProviders.put(file, provider);
         return this;

core/src/main/java/io/xpipe/core/source/DataSource.java

@@ -1,15 +1,16 @@
 package io.xpipe.core.source;
 
+import com.fasterxml.jackson.annotation.JsonTypeInfo;
 import com.fasterxml.jackson.databind.util.TokenBuffer;
+import io.xpipe.core.charsetter.NewLine;
+import io.xpipe.core.charsetter.StreamCharset;
 import io.xpipe.core.impl.TextSource;
 import io.xpipe.core.impl.XpbtSource;
 import io.xpipe.core.store.DataFlow;
 import io.xpipe.core.store.DataStore;
 import io.xpipe.core.util.JacksonHelper;
-import lombok.AllArgsConstructor;
-import lombok.Data;
-import lombok.NoArgsConstructor;
 import lombok.SneakyThrows;
+import lombok.experimental.SuperBuilder;
 
 import java.util.Optional;
 
@@ -19,18 +20,21 @@ import java.util.Optional;
  * <p>
  * This instance is only valid in combination with its associated data store instance.
  */
-@Data
+@SuperBuilder
-@NoArgsConstructor
+@JsonTypeInfo(
-@AllArgsConstructor
+        use = JsonTypeInfo.Id.NAME,
+        property = "type"
+)
 public abstract class DataSource<DS extends DataStore> {
 
 
     public static DataSource<?> createInternalDataSource(DataSourceType t, DataStore store) {
         try {
             return switch (t) {
-                case TABLE -> new XpbtSource(store.asNeeded());
+                case TABLE ->  XpbtSource.builder().store(store.asNeeded()).build();
                 case STRUCTURE -> null;
-                case TEXT -> new TextSource(store.asNeeded());
+                case TEXT -> TextSource.builder().store(store.asNeeded()).newLine(NewLine.LF).charset(
+                        StreamCharset.UTF8).build();
                 case RAW -> null;
                 //TODO
                 case COLLECTION -> null;
@@ -55,6 +59,15 @@ public abstract class DataSource<DS extends DataStore> {
         store.validate();
     }
 
+    public WriteMode[] getAvailableWriteModes() {
+        if (getFlow() != null && !getFlow().hasOutput()) {
+            return new WriteMode[0];
+        }
+
+        return WriteMode.values();
+    }
+
+
     public DataFlow getFlow() {
         if (store == null) {
             return null;
@@ -72,6 +85,32 @@ public abstract class DataSource<DS extends DataStore> {
         return (T) mapper.readValue(tb.asParser(), getClass());
     }
 
+    @SneakyThrows
+    public final String toString() {
+        var tree = JacksonHelper.newMapper().valueToTree(this);
+        return tree.toPrettyString();
+    }
+
+    @Override
+    public final boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (getClass() != o.getClass()) {
+            return false;
+        }
+
+        var tree = JacksonHelper.newMapper().valueToTree(this);
+        var otherTree = JacksonHelper.newMapper().valueToTree(o);
+        return tree.equals(otherTree);
+    }
+
+    @Override
+    public final int hashCode() {
+        var tree = JacksonHelper.newMapper().valueToTree(this);
+        return tree.hashCode();
+    }
+
     public DataSource<DS> withStore(DS store) {
         var c = copy();
         c.store = store;

core/src/main/java/io/xpipe/core/source/RawDataSource.java

@@ -1,15 +1,13 @@
 package io.xpipe.core.source;
 
 import io.xpipe.core.store.DataStore;
+import lombok.experimental.SuperBuilder;
 
+@SuperBuilder
 public abstract class RawDataSource<DS extends DataStore> extends DataSource<DS> {
 
     private static final int MAX_BYTES_READ = 100000;
 
-    public RawDataSource(DS store) {
-        super(store);
-    }
-
     @Override
     public final DataSourceInfo determineInfo() throws Exception {
         try (var con = openReadConnection()) {

core/src/main/java/io/xpipe/core/source/StructureDataSource.java

@@ -2,13 +2,11 @@ package io.xpipe.core.source;
 
 import io.xpipe.core.data.node.DataStructureNode;
 import io.xpipe.core.store.DataStore;
+import lombok.experimental.SuperBuilder;
 
+@SuperBuilder
 public abstract class StructureDataSource<DS extends DataStore> extends DataSource<DS> {
 
-    public StructureDataSource(DS store) {
-        super(store);
-    }
-
     private int countEntries(DataStructureNode n) {
         if (n.isValue()) {
             return 1;

core/src/main/java/io/xpipe/core/source/TableDataSource.java

@@ -2,19 +2,11 @@ package io.xpipe.core.source;
 
 import io.xpipe.core.impl.PreservingTableWriteConnection;
 import io.xpipe.core.store.DataStore;
-import lombok.Data;
+import lombok.experimental.SuperBuilder;
-import lombok.EqualsAndHashCode;
-import lombok.NoArgsConstructor;
 
-@Data
+@SuperBuilder
-@EqualsAndHashCode(callSuper = true)
-@NoArgsConstructor
 public abstract class TableDataSource<DS extends DataStore> extends DataSource<DS> {
 
-    public TableDataSource(DS store) {
-        super(store);
-    }
-
     @Override
     public final DataSourceInfo determineInfo() throws Exception {
         if (!getFlow().hasInput()) {

core/src/main/java/io/xpipe/core/source/TableReadConnection.java

@@ -7,6 +7,7 @@ import io.xpipe.core.data.node.ArrayNode;
 import io.xpipe.core.data.node.TupleNode;
 import io.xpipe.core.data.type.TupleType;
 import io.xpipe.core.data.typed.TypedDataStreamWriter;
+import io.xpipe.core.impl.LimitTableReadConnection;
 
 import java.io.OutputStream;
 import java.util.ArrayList;
@@ -31,8 +32,8 @@ public interface TableReadConnection extends DataSourceReadConnection {
             }
 
             @Override
-            public void withRows(DataStructureNodeAcceptor<TupleNode> lineAcceptor) throws Exception {
+            public int withRows(DataStructureNodeAcceptor<TupleNode> lineAcceptor) throws Exception {
-
+                return 0;
             }
 
             @Override
@@ -54,10 +55,16 @@ public interface TableReadConnection extends DataSourceReadConnection {
         return OptionalInt.empty();
     }
 
+    default TableReadConnection limit(int limit) {
+        return new LimitTableReadConnection(this, limit);
+    }
+
     /**
      * Consumes the table rows until the acceptor returns false.
+     *
+     * @return
      */
-    void withRows(DataStructureNodeAcceptor<TupleNode> lineAcceptor) throws Exception;
+    int withRows(DataStructureNodeAcceptor<TupleNode> lineAcceptor) throws Exception;
 
     /**
      * Reads multiple rows in bulk.
@@ -92,7 +99,11 @@ public interface TableReadConnection extends DataSourceReadConnection {
     }
 
     default void forward(DataSourceConnection con) throws Exception {
+        forwardAndCount(con);
+    }
+
+    default int forwardAndCount(DataSourceConnection con) throws Exception {
         var tCon = (TableWriteConnection) con;
-        withRows(tCon.writeLinesAcceptor());
+        return withRows(tCon.writeLinesAcceptor());
     }
 }

core/src/main/java/io/xpipe/core/source/TableWriteConnection.java

@@ -10,6 +10,17 @@ import io.xpipe.core.data.node.TupleNode;
  */
 public interface TableWriteConnection extends DataSourceConnection {
 
+    public static TableWriteConnection empty() {
+        return new TableWriteConnection() {
+            @Override
+            public DataStructureNodeAcceptor<TupleNode> writeLinesAcceptor() {
+                return node -> {
+                    return true;
+                };
+            }
+        };
+    }
+
     DataStructureNodeAcceptor<TupleNode> writeLinesAcceptor();
 
     default void writeLines(ArrayNode lines) throws Exception {

core/src/main/java/io/xpipe/core/source/TextDataSource.java

@@ -2,19 +2,15 @@ package io.xpipe.core.source;
 
 import io.xpipe.core.impl.PreservingTextWriteConnection;
 import io.xpipe.core.store.DataStore;
-import lombok.NoArgsConstructor;
+import lombok.experimental.SuperBuilder;
 
 import java.util.concurrent.atomic.AtomicInteger;
 
-@NoArgsConstructor
+@SuperBuilder
 public abstract class TextDataSource<DS extends DataStore> extends DataSource<DS> {
 
     private static final int MAX_LINE_READ = 1000;
 
-    public TextDataSource(DS store) {
-        super(store);
-    }
-
     @Override
     public final DataSourceInfo determineInfo() throws Exception {
         if (!getStore().canOpen()) {

core/src/main/java/io/xpipe/core/store/FileStore.java

@@ -1,8 +1,9 @@
 package io.xpipe.core.store;
 
-import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonTypeName;
+import lombok.Builder;
 import lombok.Value;
+import lombok.extern.jackson.Jacksonized;
 
 import java.io.InputStream;
 import java.io.OutputStream;
@@ -13,6 +14,8 @@ import java.nio.file.Path;
  */
 @Value
 @JsonTypeName("file")
+@Builder
+@Jacksonized
 public class FileStore implements StreamDataStore, FilenameStore {
 
     public static FileStore local(Path p) {
@@ -29,12 +32,6 @@ public class FileStore implements StreamDataStore, FilenameStore {
     MachineFileStore machine;
     String file;
 
-    @JsonCreator
-    public FileStore(MachineFileStore machine, String file) {
-        this.machine = machine;
-        this.file = file;
-    }
-
     @Override
     public void validate() throws Exception {
         if (machine == null) {

core/src/main/java/io/xpipe/core/store/InMemoryStore.java

@@ -6,6 +6,7 @@ import lombok.Value;
 import lombok.experimental.NonFinal;
 
 import java.io.*;
+import java.nio.charset.StandardCharsets;
 
 /**
  * A store whose contents are stored in memory.
@@ -47,4 +48,7 @@ public class InMemoryStore implements StreamDataStore {
         };
     }
 
+    public String toString() {
+        return new String(value, StandardCharsets.UTF_8);
+    }
 }

core/src/main/java/io/xpipe/core/store/LocalStore.java

@@ -2,7 +2,7 @@ package io.xpipe.core.store;
 
 import com.fasterxml.jackson.annotation.JsonTypeName;
 import io.xpipe.core.charsetter.NewLine;
-import io.xpipe.core.util.Secret;
+import io.xpipe.core.util.SecretValue;
 import lombok.EqualsAndHashCode;
 import lombok.Value;
 
@@ -27,14 +27,14 @@ public class LocalStore extends StandardShellStore implements MachineFileStore {
 
      class LocalProcessControl extends ProcessControl {
 
-        private final List<Secret> input;
+        private final List<SecretValue> input;
         private final Integer timeout;
         private final List<String> command;
         private Charset charset;
 
         private Process process;
 
-        LocalProcessControl(List<Secret> input, List<String> cmd, Integer timeout) {
+        LocalProcessControl(List<SecretValue> input, List<String> cmd, Integer timeout) {
             this.input = input;
             this.timeout = timeout;
             this.command = cmd;
@@ -80,6 +80,11 @@ public class LocalStore extends StandardShellStore implements MachineFileStore {
             return process.getInputStream();
         }
 
+         @Override
+         public OutputStream getStdin() {
+             return process.getOutputStream();
+         }
+
          @Override
         public InputStream getStderr() {
             return process.getErrorStream();
@@ -125,12 +130,12 @@ public class LocalStore extends StandardShellStore implements MachineFileStore {
     }
 
     @Override
-    public ProcessControl prepareCommand(List<Secret> input, List<String> cmd, Integer timeout) {
+    public ProcessControl prepareCommand(List<SecretValue> input, List<String> cmd, Integer timeout) {
         return new LocalProcessControl(input, cmd, getEffectiveTimeOut(timeout));
     }
 
     @Override
-    public ProcessControl preparePrivilegedCommand(List<Secret> input, List<String> cmd, Integer timeOut) throws Exception {
+    public ProcessControl preparePrivilegedCommand(List<SecretValue> input, List<String> cmd, Integer timeOut) throws Exception {
         return new LocalProcessControl(input, cmd, getEffectiveTimeOut(timeOut));
     }
 

core/src/main/java/io/xpipe/core/store/ProcessControl.java

@@ -68,6 +68,7 @@ public abstract class ProcessControl {
     public abstract int waitFor() throws Exception;
 
     public abstract InputStream getStdout();
+    public abstract OutputStream getStdin();
 
     public abstract InputStream getStderr();
 

core/src/main/java/io/xpipe/core/store/ShellStore.java

@@ -1,6 +1,6 @@
 package io.xpipe.core.store;
 
-import io.xpipe.core.util.Secret;
+import io.xpipe.core.util.SecretValue;
 
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
@@ -15,7 +15,7 @@ public abstract class ShellStore implements DataStore {
         return null;
     }
 
-    public List<Secret> getInput() {
+    public List<SecretValue> getInput() {
         return List.of();
     }
 
@@ -31,7 +31,7 @@ public abstract class ShellStore implements DataStore {
         return string;
     }
 
-    public String executeAndCheckOut(List<Secret> in, List<String> cmd, Integer timeout) throws ProcessOutputException, Exception {
+    public String executeAndCheckOut(List<SecretValue> in, List<String> cmd, Integer timeout) throws ProcessOutputException, Exception {
         var pc = prepareCommand(in, cmd, getEffectiveTimeOut(timeout));
         pc.start();
 
@@ -76,7 +76,7 @@ public abstract class ShellStore implements DataStore {
         }
     }
 
-    public Optional<String> executeAndCheckErr(List<Secret> in, List<String> cmd) throws Exception {
+    public Optional<String> executeAndCheckErr(List<SecretValue> in, List<String> cmd) throws Exception {
         var pc = prepareCommand(in, cmd, getTimeout());
         pc.start();
         var outT = pc.discardOut();
@@ -113,13 +113,13 @@ public abstract class ShellStore implements DataStore {
         return prepareCommand(List.of(), cmd, timeout);
     }
 
-    public abstract ProcessControl prepareCommand(List<Secret> input, List<String> cmd, Integer timeout) throws Exception;
+    public abstract ProcessControl prepareCommand(List<SecretValue> input, List<String> cmd, Integer timeout) throws Exception;
 
     public ProcessControl preparePrivilegedCommand(List<String> cmd, Integer timeout) throws Exception {
         return preparePrivilegedCommand(List.of(), cmd, timeout);
     }
 
-    public ProcessControl preparePrivilegedCommand(List<Secret> input, List<String> cmd, Integer timeout) throws Exception {
+    public ProcessControl preparePrivilegedCommand(List<SecretValue> input, List<String> cmd, Integer timeout) throws Exception {
         throw new UnsupportedOperationException();
     }
 }

core/src/main/java/io/xpipe/core/store/ShellTypes.java

@@ -2,7 +2,7 @@ package io.xpipe.core.store;
 
 import com.fasterxml.jackson.annotation.JsonTypeName;
 import io.xpipe.core.charsetter.NewLine;
-import io.xpipe.core.util.Secret;
+import io.xpipe.core.util.SecretValue;
 import lombok.Value;
 
 import java.io.ByteArrayInputStream;
@@ -83,7 +83,7 @@ public class ShellTypes {
         }
 
         @Override
-        public ProcessControl prepareElevatedCommand(ShellStore st, List<Secret> in, List<String> cmd, Integer timeout, String pw) throws Exception {
+        public ProcessControl prepareElevatedCommand(ShellStore st, List<SecretValue> in, List<String> cmd, Integer timeout, String pw) throws Exception {
             var l = List.of("net", "session", ";", "if", "%errorLevel%", "!=", "0");
             return st.prepareCommand(List.of(), l, timeout);
         }
@@ -186,12 +186,12 @@ public class ShellTypes {
         }
 
         @Override
-        public ProcessControl prepareElevatedCommand(ShellStore st, List<Secret> in, List<String> cmd, Integer timeout, String pw) throws Exception {
+        public ProcessControl prepareElevatedCommand(ShellStore st, List<SecretValue> in, List<String> cmd, Integer timeout, String pw) throws Exception {
             var l = new ArrayList<>(cmd);
             l.add(0, "sudo");
             l.add(1, "-S");
             var pws = new ByteArrayInputStream(pw.getBytes(determineCharset(st)));
-            return st.prepareCommand(List.of(Secret.createForSecretValue(pw)), l, timeout);
+            return st.prepareCommand(List.of(SecretValue.createForSecretValue(pw)), l, timeout);
         }
 
         @Override

core/src/main/java/io/xpipe/core/store/StandardShellStore.java

@@ -2,7 +2,7 @@ package io.xpipe.core.store;
 
 import com.fasterxml.jackson.annotation.JsonTypeInfo;
 import io.xpipe.core.charsetter.NewLine;
-import io.xpipe.core.util.Secret;
+import io.xpipe.core.util.SecretValue;
 
 import java.io.InputStream;
 import java.io.OutputStream;
@@ -16,7 +16,7 @@ public abstract class StandardShellStore extends ShellStore implements MachineFi
 
         List<String> switchTo(List<String> cmd);
 
-        default ProcessControl prepareElevatedCommand(ShellStore st, List<Secret> in, List<String> cmd, Integer timeout, String pw) throws Exception {
+        default ProcessControl prepareElevatedCommand(ShellStore st, List<SecretValue> in, List<String> cmd, Integer timeout, String pw) throws Exception {
             return st.prepareCommand(in, cmd, timeout);
         }
 

core/src/main/java/io/xpipe/core/util/CoreJacksonModule.java

@@ -20,6 +20,8 @@ import io.xpipe.core.dialog.BaseQueryElement;
 import io.xpipe.core.dialog.BusyElement;
 import io.xpipe.core.dialog.ChoiceElement;
 import io.xpipe.core.dialog.HeaderElement;
+import io.xpipe.core.impl.TextSource;
+import io.xpipe.core.impl.XpbtSource;
 import io.xpipe.core.source.DataSource;
 import io.xpipe.core.source.DataSourceInfo;
 import io.xpipe.core.source.DataSourceReference;
@@ -34,6 +36,9 @@ public class CoreJacksonModule extends SimpleModule {
     @Override
     public void setupModule(SetupContext context) {
         context.registerSubtypes(
+                new NamedType(TextSource.class),
+                new NamedType(XpbtSource.class),
+
                 new NamedType(FileStore.class),
                 new NamedType(StdinDataStore.class),
                 new NamedType(StdoutDataStore.class),
@@ -70,8 +75,8 @@ public class CoreJacksonModule extends SimpleModule {
         addSerializer(Path.class, new LocalPathSerializer());
         addDeserializer(Path.class, new LocalPathDeserializer());
 
-        addSerializer(Secret.class, new SecretSerializer());
+        addSerializer(SecretValue.class, new SecretSerializer());
-        addDeserializer(Secret.class, new SecretDeserializer());
+        addDeserializer(SecretValue.class, new SecretDeserializer());
 
         addSerializer(DataSourceReference.class, new DataSourceReferenceSerializer());
         addDeserializer(DataSourceReference.class, new DataSourceReferenceDeserializer());
@@ -159,20 +164,20 @@ public class CoreJacksonModule extends SimpleModule {
         }
     }
 
-    public static class SecretSerializer extends JsonSerializer<Secret> {
+    public static class SecretSerializer extends JsonSerializer<SecretValue> {
 
         @Override
-        public void serialize(Secret value, JsonGenerator jgen, SerializerProvider provider)
+        public void serialize(SecretValue value, JsonGenerator jgen, SerializerProvider provider)
                 throws IOException {
             jgen.writeString(value.getEncryptedValue());
         }
     }
 
-    public static class SecretDeserializer extends JsonDeserializer<Secret> {
+    public static class SecretDeserializer extends JsonDeserializer<SecretValue> {
 
         @Override
-        public Secret deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
+        public SecretValue deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
-            return new Secret(p.getValueAsString());
+            return new SecretValue(p.getValueAsString());
         }
     }
 

core/src/main/java/io/xpipe/core/util/JacksonHelper.java

@@ -56,23 +56,12 @@ public class JacksonHelper {
      * Constructs a new ObjectMapper that is able to map all required X-Pipe classes and also possible extensions.
      */
     public static ObjectMapper newMapper() {
-        if (!init) {
+        if (!JacksonHelper.isInit()) {
-            throw new IllegalStateException("Not initialized");
+            JacksonHelper.initModularized(ModuleLayer.boot());
         }
-
         return INSTANCE.copy();
     }
 
-    public static ObjectMapper newMapper(Class<?> excludedModule) {
-        if (!init) {
-            throw new IllegalStateException("Not initialized");
-        }
-
-        var mapper = BASE.copy();
-        mapper.registerModules(MODULES.stream().filter(module -> !module.getClass().equals(excludedModule)).toList());
-        return mapper;
-    }
-
     public static boolean isInit() {
         return init;
     }

core/src/main/java/io/xpipe/core/util/SecretValue.java

@@ -8,18 +8,18 @@ import java.util.Base64;
 
 @AllArgsConstructor
 @EqualsAndHashCode
-public class Secret {
+public class SecretValue {
 
-    public static Secret createForSecretValue(String s) {
+    public static SecretValue createForSecretValue(String s) {
         if (s == null) {
             return null;
         }
 
         if (s.length() < 2) {
-            return new Secret(s);
+            return new SecretValue(s);
         }
 
-        return new Secret(Base64.getEncoder().encodeToString(s.getBytes(StandardCharsets.UTF_8)));
+        return new SecretValue(Base64.getEncoder().encodeToString(s.getBytes(StandardCharsets.UTF_8)));
     }
 
     String value;

core/src/main/java/io/xpipe/core/util/StreamHelper.java

@@ -1,23 +0,0 @@
-package io.xpipe.core.util;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.util.Objects;
-
-public class StreamHelper {
-
-    private static final int DEFAULT_BUFFER_SIZE = 8192;
-
-    public static long transferTo(InputStream in, OutputStream out) throws IOException {
-        Objects.requireNonNull(out, "out");
-        long transferred = 0;
-        byte[] buffer = new byte[DEFAULT_BUFFER_SIZE];
-        int read;
-        while (in.available() > 0 && (read = in.read(buffer, 0, DEFAULT_BUFFER_SIZE)) >= 0) {
-            out.write(buffer, 0, read);
-            transferred += read;
-        }
-        return transferred;
-    }
-}

extension/build.gradle

@@ -7,7 +7,6 @@ plugins {
 
 apply from: "$rootDir/deps/java.gradle"
 apply from: "$rootDir/deps/javafx.gradle"
-apply from: "$rootDir/deps/richtextfx.gradle"
 apply from: "$rootDir/deps/lombok.gradle"
 
 configurations {
@@ -26,6 +25,7 @@ dependencies {
     api group: 'com.fasterxml.jackson.core', name: 'jackson-annotations', version: "2.13.0"
 
     compileOnly group: 'org.kordamp.ikonli', name: 'ikonli-javafx', version: "12.2.0"
+    compileOnly group: 'org.fxmisc.richtext', name: 'richtextfx', version: '0.10.9'
     compileOnly 'net.synedra:validatorfx:0.3.1'
     compileOnly 'org.junit.jupiter:junit-jupiter-api:5.9.0'
     compileOnly 'com.jfoenix:jfoenix:9.0.10'

extension/src/main/java/io/xpipe/extension/DataSourceProvider.java

@@ -6,7 +6,6 @@ import io.xpipe.core.source.DataSourceType;
 import io.xpipe.core.store.DataStore;
 import javafx.beans.property.Property;
 import javafx.scene.layout.Region;
-import lombok.SneakyThrows;
 
 import java.util.List;
 import java.util.Map;
@@ -23,11 +22,6 @@ public interface DataSourceProvider<T extends DataSource<?>> {
         getSourceClass();
     }
 
-    @SneakyThrows
-    default T create(Object... arguments) {
-       return (T) getSourceClass().getDeclaredConstructors()[0].newInstance(arguments);
-    }
-
     default Category getCategory() {
         if (getFileProvider() != null) {
             return Category.FILE;

extension/src/main/java/io/xpipe/extension/DataStoreProviders.java

@@ -54,7 +54,7 @@ public class DataStoreProviders {
         ).filter(Objects::nonNull).findAny();
     }
 
-
+    @SuppressWarnings("unchecked")
     public static <T extends DataStoreProvider> T byStore(DataStore store) {
         return (T) byStoreClass(store.getClass());
     }

extension/src/main/java/io/xpipe/extension/comp/ChoiceComp.java

@@ -12,11 +12,15 @@ import javafx.beans.value.ObservableValue;
 import javafx.collections.FXCollections;
 import javafx.scene.control.ComboBox;
 import javafx.util.StringConverter;
-import lombok.Value;
+import lombok.AccessLevel;
+import lombok.experimental.FieldDefaults;
 
 import java.util.Map;
 
-@Value
+@FieldDefaults(
+        makeFinal = true,
+        level = AccessLevel.PRIVATE
+)
 public class ChoiceComp<T> extends Comp<CompStructure<ComboBox<T>>> {
 
     Property<T> value;

extension/src/main/java/io/xpipe/extension/comp/ChoicePaneComp.java

@@ -12,12 +12,18 @@ import javafx.scene.control.ComboBox;
 import javafx.scene.layout.Region;
 import javafx.scene.layout.VBox;
 import javafx.util.StringConverter;
-import lombok.Value;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.experimental.FieldDefaults;
 
 import java.util.List;
 import java.util.function.Function;
 
-@Value
+@FieldDefaults(
+        makeFinal = true,
+        level = AccessLevel.PRIVATE
+)
+@AllArgsConstructor
 public class ChoicePaneComp extends Comp<CompStructure<VBox>> {
 
     List<Entry> entries;

extension/src/main/java/io/xpipe/extension/comp/IntFieldComp.java

@@ -8,9 +8,13 @@ import javafx.beans.property.Property;
 import javafx.beans.value.ChangeListener;
 import javafx.scene.control.TextField;
 import javafx.scene.input.KeyEvent;
-import lombok.Value;
+import lombok.AccessLevel;
+import lombok.experimental.FieldDefaults;
 
-@Value
+@FieldDefaults(
+        makeFinal = true,
+        level = AccessLevel.PRIVATE
+)
 public class IntFieldComp extends Comp<CompStructure<TextField>> {
 
     Property<Integer> value;

extension/src/main/java/io/xpipe/extension/comp/SecretFieldComp.java

@@ -1,6 +1,6 @@
 package io.xpipe.extension.comp;
 
-import io.xpipe.core.util.Secret;
+import io.xpipe.core.util.SecretValue;
 import io.xpipe.fxcomps.Comp;
 import io.xpipe.fxcomps.CompStructure;
 import io.xpipe.fxcomps.SimpleCompStructure;
@@ -11,9 +11,9 @@ import javafx.scene.control.TextField;
 
 public class SecretFieldComp extends Comp<CompStructure<TextField>> {
 
-    private final Property<Secret> value;
+    private final Property<SecretValue> value;
 
-    public SecretFieldComp(Property<Secret> value) {
+    public SecretFieldComp(Property<SecretValue> value) {
         this.value = value;
     }
 
@@ -22,7 +22,7 @@ public class SecretFieldComp extends Comp<CompStructure<TextField>> {
         var text = new PasswordField();
         text.setText(value.getValue() != null ? value.getValue().getSecretValue() : null);
         text.textProperty().addListener((c, o, n) -> {
-            value.setValue(n != null && n.length() > 0 ? Secret.createForSecretValue(n) : null);
+            value.setValue(n != null && n.length() > 0 ? SecretValue.createForSecretValue(n) : null);
         });
         value.addListener((c, o, n) -> {
             PlatformThread.runLaterIfNeeded(() -> {

extension/src/main/java/io/xpipe/extension/prefs/PrefsChoiceValue.java

@@ -29,6 +29,7 @@ public interface PrefsChoiceValue extends Translatable {
         }
     }
 
+    @SuppressWarnings("unchecked")
     static <T extends PrefsChoiceValue> List<T> getSupported(Class<T> type) {
         try {
             return (List<T>) type.getDeclaredField("SUPPORTED").get(null);

extension/src/main/java/io/xpipe/extension/util/DialogHelper.java

@@ -6,7 +6,7 @@ import io.xpipe.core.dialog.Dialog;
 import io.xpipe.core.dialog.QueryConverter;
 import io.xpipe.core.source.DataSource;
 import io.xpipe.core.store.*;
-import io.xpipe.core.util.Secret;
+import io.xpipe.core.util.SecretValue;
 import lombok.Value;
 
 import java.util.function.Predicate;
@@ -131,7 +131,7 @@ public class DialogHelper {
                 });
     }
 
-    public static Dialog passwordQuery(Secret password) {
+    public static Dialog passwordQuery(SecretValue password) {
         return Dialog.querySecret("Password", false, true, password);
     }
 

extension/src/main/java/io/xpipe/extension/util/DynamicOptionsBuilder.java

@@ -2,7 +2,7 @@ package io.xpipe.extension.util;
 
 import io.xpipe.core.charsetter.NewLine;
 import io.xpipe.core.charsetter.StreamCharset;
-import io.xpipe.core.util.Secret;
+import io.xpipe.core.util.SecretValue;
 import io.xpipe.extension.I18n;
 import io.xpipe.extension.comp.*;
 import io.xpipe.fxcomps.Comp;
@@ -46,7 +46,7 @@ public class DynamicOptionsBuilder<T> {
     }
 
     public DynamicOptionsBuilder<T> addTitle(ObservableValue<String> title) {
-        entries.add(new DynamicOptionsComp.Entry(null, Comp.of(() -> new Label(title.getValue())).styleClass("title")));
+        entries.add(new DynamicOptionsComp.Entry(null, Comp.of(() -> new Label(title.getValue())).styleClass("title-header")));
         return this;
     }
 
@@ -169,11 +169,11 @@ public class DynamicOptionsBuilder<T> {
         return this;
     }
 
-    public DynamicOptionsBuilder<T> addSecret(String nameKey, Property<Secret> prop) {
+    public DynamicOptionsBuilder<T> addSecret(String nameKey, Property<SecretValue> prop) {
         return addSecret(I18n.observable(nameKey), prop);
     }
 
-    public DynamicOptionsBuilder<T> addSecret(ObservableValue<String> name, Property<Secret> prop) {
+    public DynamicOptionsBuilder<T> addSecret(ObservableValue<String> name, Property<SecretValue> prop) {
         var comp = new SecretFieldComp(prop);
         entries.add(new DynamicOptionsComp.Entry(name, comp));
         props.add(prop);
@@ -233,7 +233,7 @@ public class DynamicOptionsBuilder<T> {
 
     public Comp<?> buildComp() {
         if (title != null) {
-            entries.add(0, new DynamicOptionsComp.Entry(null, Comp.of(() -> new Label(title.getValue())).styleClass("title")));
+            entries.add(0, new DynamicOptionsComp.Entry(null, Comp.of(() -> new Label(title.getValue())).styleClass("title-header")));
         }
         return new DynamicOptionsComp(entries, wrap);
     }

extension/src/main/java/io/xpipe/extension/util/ExtensionJacksonModule.java

@@ -1,54 +0,0 @@
-package io.xpipe.extension.util;
-
-import com.fasterxml.jackson.core.JsonGenerator;
-import com.fasterxml.jackson.core.JsonParser;
-import com.fasterxml.jackson.databind.*;
-import com.fasterxml.jackson.databind.module.SimpleModule;
-import com.fasterxml.jackson.databind.node.ObjectNode;
-import io.xpipe.core.source.DataSource;
-import io.xpipe.core.util.JacksonHelper;
-import io.xpipe.extension.DataSourceProviders;
-
-import java.io.IOException;
-
-public class ExtensionJacksonModule extends SimpleModule {
-
-    @Override
-    public void setupModule(SetupContext context) {
-        addSerializer(DataSource.class, new DataSourceSerializer());
-        addDeserializer(DataSource.class, new DataSourceDeserializer());
-
-        context.addSerializers(_serializers);
-        context.addDeserializers(_deserializers);
-    }
-
-    public static class DataSourceSerializer extends JsonSerializer<DataSource> {
-
-        @Override
-        public void serialize(DataSource value, JsonGenerator jgen, SerializerProvider provider)
-                throws IOException {
-
-            ObjectMapper mapper = JacksonHelper.newMapper(ExtensionJacksonModule.class);
-            var prov = DataSourceProviders.byDataSourceClass(value.getClass());
-            ObjectNode objectNode = mapper.valueToTree(value);
-            objectNode.put("type", prov.getId());
-            jgen.writeTree(objectNode);
-        }
-    }
-
-    public static class DataSourceDeserializer extends JsonDeserializer<DataSource> {
-
-        @Override
-        public DataSource deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
-            var mapper = JacksonHelper.newMapper(ExtensionJacksonModule.class);
-            var tree = (ObjectNode) mapper.readTree(p);
-            var type = tree.get("type").textValue();
-            var prov = DataSourceProviders.byName(type);
-            if (prov.isEmpty()) {
-                return null;
-            }
-
-            return mapper.treeToValue(tree, prov.get().getSourceClass());
-        }
-    }
-}

extension/src/main/java/io/xpipe/extension/util/ExtensionTest.java

@@ -22,10 +22,17 @@ public class ExtensionTest {
         return FileStore.local(Path.of(file));
     }
 
+    public static DataSource getSource(String type, DataStore store) {
+        return DataSource.create(null, type, store);
+    }
+
     public static DataSource getSource(String type, String file) {
         return DataSource.create(null, type, getResource(file));
     }
 
+    public static DataSource getSource(io.xpipe.core.source.DataSource<?> source) {
+        return DataSource.create(null, source);
+    }
 
     @BeforeAll
     public static void setup() throws Exception {

extension/src/main/java/io/xpipe/extension/util/TypeConverter.java

@@ -4,12 +4,15 @@ import io.xpipe.core.data.node.DataStructureNode;
 import io.xpipe.core.data.node.ValueNode;
 import org.apache.commons.lang3.math.NumberUtils;
 
+import java.math.BigDecimal;
+import java.math.BigInteger;
+
 public class TypeConverter {
 
     public static void tagNullType(ValueNode node, String nullValue) {
         var string = node.asString();
         if (string.equals(nullValue)) {
-            node.tag(DataStructureNode.NULL_VALUE);
+            node.tag(DataStructureNode.IS_NULL);
         }
     }
 
@@ -17,18 +20,17 @@ public class TypeConverter {
         var string = node.asString();
         if (string.equals(trueValue)) {
             node.tag(DataStructureNode.BOOLEAN_TRUE);
-            node.tag(DataStructureNode.BOOLEAN_VALUE);
+            node.tag(DataStructureNode.IS_BOOLEAN);
         }
         if (string.equals(falseValue)) {
             node.tag(DataStructureNode.BOOLEAN_FALSE);
-            node.tag(DataStructureNode.BOOLEAN_VALUE);
+            node.tag(DataStructureNode.IS_BOOLEAN);
         }
     }
 
     public static void tagNumberType(ValueNode node) {
         var string = node.asString();
         if (NumberUtils.isCreatable(string)) {
-            node.tag(DataStructureNode.IS_NUMBER);
             var number = NumberUtils.createNumber(string);
             if (number instanceof Float || number instanceof Double) {
                 node.tag(DataStructureNode.IS_FLOATING_POINT);
@@ -37,4 +39,93 @@ public class TypeConverter {
             }
         }
     }
+
+    public static BigDecimal parseDecimal(DataStructureNode node) {
+        if (node == null || node.hasMetaAttribute(DataStructureNode.IS_NULL)) {
+            return BigDecimal.ZERO;
+        }
+
+        if (node.hasMetaAttribute(DataStructureNode.FLOATING_POINT_VALUE)) {
+            return new BigDecimal(node.getMetaAttribute(DataStructureNode.FLOATING_POINT_VALUE));
+        }
+
+        var parsedDecimal = parseDecimal(node.asString());
+        if (parsedDecimal != null) {
+            return parsedDecimal;
+        }
+
+        if (node.hasMetaAttribute(DataStructureNode.INTEGER_VALUE)) {
+            return new BigDecimal(node.getMetaAttribute(DataStructureNode.INTEGER_VALUE));
+        }
+
+        var parsedInteger = parseInteger(node.asString());
+        if (parsedInteger != null) {
+            return new BigDecimal(parsedInteger);
+        }
+
+        return null;
+    }
+
+    public static Boolean parseBoolean(DataStructureNode node) {
+        if (node == null || node.hasMetaAttribute(DataStructureNode.IS_NULL)) {
+            return false;
+        }
+
+        if (node.hasMetaAttribute(DataStructureNode.BOOLEAN_FALSE)) {
+            return Boolean.parseBoolean(node.getMetaAttribute(DataStructureNode.BOOLEAN_FALSE));
+        }
+
+        if (node.hasMetaAttribute(DataStructureNode.BOOLEAN_TRUE)) {
+            return Boolean.parseBoolean(node.getMetaAttribute(DataStructureNode.BOOLEAN_TRUE));
+        }
+
+        var string = node.asString();
+        if (string.length() == 0 || string.equalsIgnoreCase("false")) {
+            return false;
+        }
+
+        return true;
+    }
+
+    public static BigInteger parseInteger(DataStructureNode node) {
+        if (node == null || node.hasMetaAttribute(DataStructureNode.IS_NULL)) {
+            return BigInteger.ZERO;
+        }
+
+        if (node.hasMetaAttribute(DataStructureNode.INTEGER_VALUE)) {
+            return new BigInteger(node.getMetaAttribute(DataStructureNode.INTEGER_VALUE));
+        }
+
+        var parsedInteger = parseInteger(node.asString());
+        if (parsedInteger != null) {
+            return parsedInteger;
+        }
+
+        if (node.hasMetaAttribute(DataStructureNode.FLOATING_POINT_VALUE)) {
+            return new BigDecimal(node.getMetaAttribute(DataStructureNode.FLOATING_POINT_VALUE)).toBigInteger();
+        }
+
+        var parsedDecimal = parseDecimal(node.asString());
+        if (parsedDecimal != null) {
+            return parsedDecimal.toBigInteger();
+        }
+
+        return null;
+    }
+
+    private static BigInteger parseInteger(String string) {
+        if (string == null) {
+            return BigInteger.ZERO;
+        }
+
+        return NumberUtils.createBigInteger(string);
+    }
+
+    private static BigDecimal parseDecimal(String string) {
+        if (string == null) {
+            return BigDecimal.ZERO;
+        }
+
+        return NumberUtils.createBigDecimal(string);
+    }
 }

extension/src/main/java/module-info.java

@@ -1,7 +1,5 @@
-import com.fasterxml.jackson.databind.Module;
 import io.xpipe.extension.DataSourceProvider;
 import io.xpipe.extension.SupportedApplicationProvider;
-import io.xpipe.extension.util.ExtensionJacksonModule;
 import io.xpipe.extension.util.XPipeDaemon;
 
 open module io.xpipe.extension {
@@ -27,9 +25,6 @@ open module io.xpipe.extension {
     requires static org.fxmisc.richtext;
     requires static net.synedra.validatorfx;
     requires static org.fxmisc.flowless;
-    requires static org.fxmisc.undofx;
-    requires static org.fxmisc.wellbehavedfx;
-    requires static org.reactfx;
     requires static org.kordamp.ikonli.javafx;
     requires static com.jfoenix;
 
@@ -41,6 +36,4 @@ open module io.xpipe.extension {
     uses io.xpipe.extension.DataStoreProvider;
     uses XPipeDaemon;
     uses io.xpipe.extension.Cache;
-
-    provides Module with ExtensionJacksonModule;
 }