Add support for more data source types

beacon/build.gradle

@@ -11,6 +11,10 @@ apply from: "$rootDir/deps/lombok.gradle"
 apply from: 'publish.gradle'
 apply from: "$rootDir/deps/publish-base.gradle"
 
+configurations {
+    compileOnly.extendsFrom(dep)
+}
+
 version = file('../version').text
 group = 'io.xpipe'
 archivesBaseName = 'beacon'

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

@@ -0,0 +1,49 @@
+package io.xpipe.beacon.exchange.cli;
+
+import io.xpipe.beacon.exchange.MessageExchange;
+import io.xpipe.beacon.message.RequestMessage;
+import io.xpipe.beacon.message.ResponseMessage;
+import io.xpipe.core.source.DataSourceConfigInstance;
+import io.xpipe.core.source.DataSourceId;
+import io.xpipe.core.source.DataSourceReference;
+import lombok.Builder;
+import lombok.NonNull;
+import lombok.Value;
+import lombok.extern.jackson.Jacksonized;
+
+public class ConvertExchange implements MessageExchange<ConvertExchange.Request, ConvertExchange.Response> {
+
+    @Override
+    public String getId() {
+        return "convert";
+    }
+
+    @Override
+    public Class<ConvertExchange.Request> getRequestClass() {
+        return ConvertExchange.Request.class;
+    }
+
+    @Override
+    public Class<ConvertExchange.Response> getResponseClass() {
+        return ConvertExchange.Response.class;
+    }
+
+    @Jacksonized
+    @Builder
+    @Value
+    public static class Request implements RequestMessage {
+        @NonNull
+        DataSourceReference ref;
+
+        @NonNull DataSourceId copyId;
+
+        @NonNull
+        DataSourceConfigInstance config;
+    }
+
+    @Jacksonized
+    @Builder
+    @Value
+    public static class Response implements ResponseMessage {
+    }
+}

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

@@ -33,12 +33,14 @@ module io.xpipe.beacon {
             WriteExecuteExchange,
             SelectExchange,
             ReadPreparationExchange,
+            QueryTextDataExchange,
             ReadExecuteExchange,
             DialogExchange,
             QueryDataSourceExchange,
             StoreStreamExchange,
             EditPreparationExchange,
             EditExecuteExchange,
+            ConvertExchange,
             QueryTableDataExchange,
             VersionExchange;
 }

core/build.gradle

@@ -12,6 +12,10 @@ apply from: "$rootDir/deps/junit.gradle"
 apply from: 'publish.gradle'
 apply from: "$rootDir/deps/publish-base.gradle"
 
+configurations {
+    compileOnly.extendsFrom(dep)
+}
+
 version = file('../version').text
 group = 'io.xpipe'
 archivesBaseName = 'core'

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

@@ -0,0 +1,30 @@
+package io.xpipe.core.source;
+
+import io.xpipe.core.store.DataStore;
+
+public interface CollectionDataSourceDescriptor<DS extends DataStore> extends DataSourceDescriptor<DS> {
+
+    @Override
+    default DataSourceInfo determineInfo(DS store) throws Exception {
+        try (var con = openReadConnection(store)) {
+            var c = (int) con.listEntries().count();
+            return new DataSourceInfo.Structure(c);
+        }
+    }
+
+    default CollectionReadConnection openReadConnection(DS store) throws Exception {
+        var con = newReadConnection(store);
+        con.init();
+        return con;
+    }
+
+    default CollectionWriteConnection openWriteConnection(DS store) throws Exception {
+        var con = newWriteConnection(store);
+        con.init();
+        return con;
+    }
+
+    CollectionWriteConnection newWriteConnection(DS store);
+
+    CollectionReadConnection newReadConnection(DS store);
+}

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

@@ -0,0 +1,24 @@
+package io.xpipe.core.source;
+
+import lombok.SneakyThrows;
+
+import java.util.stream.Stream;
+
+public interface CollectionReadConnection extends DataSourceReadConnection {
+
+    <T extends DataSourceReadConnection> T open(String entry) throws Exception;
+
+    Stream<String> listEntries() throws Exception;
+
+    @SneakyThrows
+    default void forward(DataSourceConnection con) throws Exception {
+        try (var tCon = (CollectionWriteConnection) con) {
+            tCon.init();
+            listEntries().forEach(s -> {
+                try (var subCon = open(s)) {
+                    ((CollectionWriteConnection) con).write(s, subCon);
+                }
+            });
+        }
+    }
+}

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

@@ -0,0 +1,6 @@
+package io.xpipe.core.source;
+
+public interface CollectionWriteConnection extends DataSourceConnection {
+
+    void write(String entry, DataSourceReadConnection con) throws Exception;
+}

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

@@ -27,11 +27,6 @@ public interface DataSourceDescriptor<DS extends DataStore> {
      */
     DataSourceInfo determineInfo(DS store) throws Exception;
 
-    /**
-     * Returns the general data source type.
-     */
-    DataSourceType getType();
-
     DataSourceReadConnection openReadConnection(DS store) throws Exception;
 
     DataSourceConnection openWriteConnection(DS store) throws Exception;

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

@@ -7,8 +7,6 @@ import io.xpipe.core.data.type.TupleType;
 import lombok.EqualsAndHashCode;
 import lombok.Value;
 
-import java.nio.ByteOrder;
-import java.nio.charset.Charset;
 import java.util.OptionalInt;
 
 /**
@@ -53,8 +51,11 @@ public abstract class DataSourceInfo {
     @JsonTypeName("structure")
     public static class Structure extends DataSourceInfo {
 
+        int entries;
+
         @JsonCreator
-        public Structure() {
+        public Structure(int entries) {
+            this.entries = entries;
         }
 
         @Override
@@ -63,17 +64,32 @@ public abstract class DataSourceInfo {
         }
     }
 
+    @EqualsAndHashCode(callSuper = false)
+    @Value
+    @JsonTypeName("collection")
+    public static class Collection extends DataSourceInfo {
+
+        int entries;
+
+        @JsonCreator
+        public Collection(int entries) {
+            this.entries = entries;
+        }
+
+        @Override
+        public DataSourceType getType() {
+            return DataSourceType.COLLECTION;
+        }
+    }
+
     @EqualsAndHashCode(callSuper = false)
     @Value
     @JsonTypeName("text")
     public static class Text extends DataSourceInfo {
-        Charset charset;
-
         int lineCount;
 
         @JsonCreator
-        public Text(Charset charset, int lineCount) {
-            this.charset = charset;
+        public Text(int lineCount) {
             this.lineCount = lineCount;
         }
 
@@ -89,12 +105,10 @@ public abstract class DataSourceInfo {
     @JsonTypeName("raw")
     public static class Raw extends DataSourceInfo {
         int byteCount;
-        ByteOrder byteOrder;
 
         @JsonCreator
-        public Raw(int byteCount, ByteOrder byteOrder) {
+        public Raw(int byteCount) {
             this.byteCount = byteCount;
-            this.byteOrder = byteOrder;
         }
 
         @Override

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

@@ -18,5 +18,8 @@ public enum DataSourceType {
     TEXT,
 
     @JsonProperty("raw")
-    RAW
+    RAW,
+
+    @JsonProperty("collection")
+    COLLECTION
 }

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

@@ -0,0 +1,35 @@
+package io.xpipe.core.source;
+
+import io.xpipe.core.store.DataStore;
+
+public abstract class RawDataSourceDescriptor <DS extends DataStore> implements DataSourceDescriptor<DS>  {
+
+    private static final int MAX_BYTES_READ = 100000;
+
+    @Override
+    public DataSourceInfo determineInfo(DS store) throws Exception {
+        try (var con = openReadConnection(store)) {
+            var b = con.readBytes(MAX_BYTES_READ);
+            int usedCount = b.length == MAX_BYTES_READ ? -1 : b.length;
+            return new DataSourceInfo.Raw(usedCount);
+        }
+    }
+
+    @Override
+    public RawReadConnection openReadConnection(DS store) throws Exception {
+        var con = newReadConnection(store);
+        con.init();
+        return con;
+    }
+
+    @Override
+    public RawWriteConnection openWriteConnection(DS store) throws Exception {
+        var con = newWriteConnection(store);
+        con.init();
+        return con;
+    }
+
+    protected abstract RawWriteConnection newWriteConnection(DS store);
+
+    protected abstract RawReadConnection newReadConnection(DS store);
+}

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

@@ -0,0 +1,18 @@
+package io.xpipe.core.source;
+
+public interface RawReadConnection extends DataSourceReadConnection {
+
+    byte[] readBytes(int max) throws Exception;
+
+    int BUFFER_SIZE = 8192;
+
+    default void forward(DataSourceConnection con) throws Exception {
+        try (var tCon = (RawWriteConnection) con) {
+            tCon.init();
+            byte[] b;
+            while ((b = readBytes(BUFFER_SIZE)).length > 0) {
+                tCon.write(b);
+            }
+        }
+    }
+}

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

@@ -0,0 +1,6 @@
+package io.xpipe.core.source;
+
+public interface RawWriteConnection extends DataSourceConnection {
+
+    void write(byte[] bytes) throws Exception;
+}

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

@@ -1,27 +1,43 @@
 package io.xpipe.core.source;
 
+import io.xpipe.core.data.node.DataStructureNode;
 import io.xpipe.core.store.DataStore;
 
-public abstract class StructureDataSourceDescriptor<DS extends DataStore> implements DataSourceDescriptor<DS> {
+public interface StructureDataSourceDescriptor<DS extends DataStore> extends DataSourceDescriptor<DS> {
 
-    public final StructureReadConnection openReadConnection(DS store) throws Exception {
+    private int countEntries(DataStructureNode n) {
+        if (n.isValue()) {
+            return 1;
+        }
+
+        int c = 0;
+        for (int i = 0; i < n.size(); i++) {
+            c += countEntries(n.at(i));
+        }
+        return c;
+    }
+
+    @Override
+    default DataSourceInfo determineInfo(DS store) throws Exception {
+        try (var con = openReadConnection(store)) {
+            var n = con.read();
+            var c = countEntries(n);
+            return new DataSourceInfo.Structure(c);
+        }
+    }
+
+    default StructureReadConnection openReadConnection(DS store) throws Exception {
         var con = newReadConnection(store);
         con.init();
         return con;
     }
 
-    public final StructureWriteConnection openWriteConnection(DS store) throws Exception {
+    default StructureWriteConnection openWriteConnection(DS store) throws Exception {
         var con = newWriteConnection(store);
         con.init();
         return con;
     }
+    StructureWriteConnection newWriteConnection(DS store);
 
-    protected abstract StructureWriteConnection newWriteConnection(DS store);
-
-    protected abstract StructureReadConnection newReadConnection(DS store);
-
-    @Override
-    public DataSourceType getType() {
-        return DataSourceType.STRUCTURE;
-    }
+    StructureReadConnection newReadConnection(DS store);
 }

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

@@ -19,9 +19,4 @@ public abstract class TableDataSourceDescriptor<DS extends DataStore> implements
     protected abstract TableWriteConnection newWriteConnection(DS store);
 
     protected abstract TableReadConnection newReadConnection(DS store);
-
-    @Override
-    public DataSourceType getType() {
-        return DataSourceType.TABLE;
-    }
 }

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

@@ -4,9 +4,15 @@ import io.xpipe.core.store.DataStore;
 
 public abstract class TextDataSourceDescriptor<DS extends DataStore> implements DataSourceDescriptor<DS>  {
 
+    private static final int MAX_LINE_READ = 1000;
+
     @Override
-    public DataSourceType getType() {
-        return DataSourceType.TEXT;
+    public DataSourceInfo determineInfo(DS store) throws Exception {
+        try (var con = openReadConnection(store)) {
+            int count = (int) con.lines().limit(MAX_LINE_READ).count();
+            int usedCount = count == MAX_LINE_READ ? -1 : count;
+            return new DataSourceInfo.Text(usedCount);
+        }
     }
 
     @Override

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

@@ -1,23 +1,31 @@
 package io.xpipe.core.source;
 
-import java.util.List;
+import java.io.OutputStream;
+import java.nio.charset.StandardCharsets;
 import java.util.stream.Stream;
 
 public interface TextReadConnection extends DataSourceReadConnection {
 
-    /**
-     * Reads the complete contents.
-     */
-    String readAll() throws Exception;
-
-    List<String> readAllLines() throws Exception;
-
-    String readLine() throws Exception;
-
     Stream<String> lines() throws Exception;
 
     boolean isFinished() throws Exception;
 
+    default void forwardLines(OutputStream out, int maxLines) throws Exception {
+        if (maxLines == 0) {
+            return;
+        }
+
+        int counter = 0;
+        for (var it = lines().iterator(); it.hasNext(); counter++) {
+            if (counter == maxLines) {
+                break;
+            }
+
+            out.write(it.next().getBytes(StandardCharsets.UTF_8));
+            out.write("\n".getBytes(StandardCharsets.UTF_8));
+        }
+    }
+
     default void forward(DataSourceConnection con) throws Exception {
         try (var tCon = (TextWriteConnection) con) {
             tCon.init();

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

@@ -1,6 +1,7 @@
 package io.xpipe.core.util;
 
 import com.fasterxml.jackson.annotation.JsonAutoDetect;
+import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.fasterxml.jackson.databind.Module;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.SerializationFeature;
@@ -22,6 +23,7 @@ public class JacksonHelper {
         ObjectMapper objectMapper = INSTANCE;
         objectMapper.enable(SerializationFeature.INDENT_OUTPUT);
         objectMapper.disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);
+        objectMapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
 
         objectMapper.registerModules(findModules(layer));
         objectMapper.setVisibility(objectMapper.getSerializationConfig().getDefaultVisibilityChecker()

extension/build.gradle

@@ -17,6 +17,10 @@ apply from: "$rootDir/deps/slf4j.gradle"
 apply from: 'publish.gradle'
 apply from: "$rootDir/deps/publish-base.gradle"
 
+configurations {
+    compileOnly.extendsFrom(dep)
+}
+
 version = file('../version').text
 group = 'io.xpipe'
 archivesBaseName = 'extension'

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

@@ -12,31 +12,74 @@ import javafx.scene.layout.Region;
 import java.nio.charset.Charset;
 import java.util.List;
 import java.util.Map;
+import java.util.Optional;
 import java.util.function.Function;
 import java.util.function.Supplier;
 
 public interface DataSourceProvider {
 
+    default String i18n(String key) {
+        return I18n.get(getId() + "." + key);
+    }
+
+    default String i18nKey(String key) {
+        return getId() + "." + key;
+    }
+
+    default Region createConfigOptions(DataStore input, Property<? extends DataSourceDescriptor<?>> source) {
+        return null;
+    }
+
+    default String getDisplayName() {
+        return i18n("displayName");
+    }
+
+    default String getDisplayImageFile() {
+        return "logo.png";
+    }
+
+    default String getDescription(DataSourceDescriptor<?> source) {
+        return i18n("description");
+    }
+
     interface FileProvider {
 
         String getFileName();
 
-        Map<Supplier<String>, String> getFileExtensions();
-    }
-
-    interface GuiProvider {
-
-        Region createConfigOptions(DataStore input, Property<? extends DataSourceDescriptor<?>> source);
-
-        String getDisplayName();
-
-        String getDisplayImage();
-
-        Supplier<String> getDescription(DataSourceDescriptor<?> source);
+        Map<String, List<String>> getFileExtensions();
     }
 
     interface ConfigProvider {
 
+        static ConfigProvider empty(List<String> names, Supplier<DataSourceDescriptor<?>> supplier) {
+            return new ConfigProvider() {
+                @Override
+                public ConfigOptionSet getConfig() {
+                    return ConfigOptionSet.empty();
+                }
+
+                @Override
+                public DataSourceDescriptor<?> toDescriptor(Map<String, String> values) {
+                    return supplier.get();
+                }
+
+                @Override
+                public Map<String, String> toConfigOptions(DataSourceDescriptor<?> desc) {
+                    return Map.of();
+                }
+
+                @Override
+                public Map<ConfigOption, Function<String, ?>> getConverters() {
+                    return Map.of();
+                }
+
+                @Override
+                public List<String> getPossibleNames() {
+                    return names;
+                }
+            };
+        }
+
         ConfigOption
                 CHARSET_OPTION = new ConfigOption("Charset", "charset");
         Function<String, Charset>
@@ -87,19 +130,45 @@ public interface DataSourceProvider {
         List<String> getPossibleNames();
     }
 
-    DataSourceType getType();
+    default boolean isHidden() {
+        return false;
+    }
 
+    DataSourceType getPrimaryType();
+
+    /**
+     * Checks whether this provider prefers a certain kind of store.
+     * This is important for the correct autodetection of a store.
+     */
     boolean prefersStore(DataStore store);
 
-    boolean supportsStore(DataStore store);
+    /**
+     * Checks whether this provider supports the store in principle.
+     * This method should not perform any further checks,
+     * just check whether it may be possible that the store is supported.
+     *
+     * This method will be called for validation purposes.
+     */
+    boolean couldSupportStore(DataStore store);
+
+    /**
+     * Performs a deep inspection to check whether this provider supports a given store.
+     *
+     * This functionality will be used in case no preferred provider has been found.
+     */
+    default boolean supportsStore(DataStore store) {
+        return false;
+    }
 
     FileProvider getFileProvider();
 
-    GuiProvider getGuiProvider();
-
     ConfigProvider getConfigProvider();
 
-    String getId();
+    default String getId() {
+        var n = getClass().getPackageName();
+        var i = n.lastIndexOf('.');
+        return i != -1 ? n.substring(i + 1) : n;
+    }
 
     DataSourceDescriptor<?> createDefaultDescriptor();
 
@@ -112,4 +181,6 @@ public interface DataSourceProvider {
     DataSourceDescriptor<?> createDefaultWriteDescriptor(DataStore input, DataSourceInfo info) throws Exception;
 
     Class<? extends DataSourceDescriptor<?>> getDescriptorClass();
+
+    Optional<String> determineDefaultName(DataStore store);
 }

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

@@ -1,12 +1,13 @@
 package io.xpipe.extension;
 
 import io.xpipe.core.data.type.TupleType;
-import io.xpipe.core.source.DataSourceType;
-import io.xpipe.core.source.TableDataSourceDescriptor;
+import io.xpipe.core.source.*;
 import io.xpipe.core.store.DataStore;
 import io.xpipe.core.store.LocalFileDataStore;
-import io.xpipe.extension.event.ErrorEvent;
+import io.xpipe.core.store.StreamDataStore;
+import lombok.SneakyThrows;
 
+import java.nio.charset.StandardCharsets;
 import java.util.Optional;
 import java.util.ServiceLoader;
 import java.util.Set;
@@ -23,35 +24,54 @@ public class DataSourceProviders {
         }
     }
 
-    public static DataSourceProvider getNativeProviderForType(DataSourceType t) {
-        switch (t) {
-            case TABLE -> {
-                return DataSourceProviders.byId("xpbt").orElseThrow();
-            }
-            case STRUCTURE -> {
-                return DataSourceProviders.byId("xpbs").orElseThrow();
-            }
-            case TEXT -> {
-                return DataSourceProviders.byId("xpbx").orElseThrow();
-            }
-            case RAW -> {
-                return DataSourceProviders.byId("xpbb").orElseThrow();
-            }
+    @SuppressWarnings("unchecked")
+    public static DataSourceDescriptor<StreamDataStore> getNativeDataSourceDescriptorForType(DataSourceType t) {
+        try {
+            return switch (t) {
+                case TABLE -> (DataSourceDescriptor<StreamDataStore>) DataSourceProviders.byId("xpbt").orElseThrow()
+                        .getDescriptorClass().getConstructors()[0].newInstance();
+                case STRUCTURE -> (DataSourceDescriptor<StreamDataStore>) DataSourceProviders.byId("xpbs").orElseThrow()
+                        .getDescriptorClass().getConstructors()[0].newInstance();
+                case TEXT -> (DataSourceDescriptor<StreamDataStore>) DataSourceProviders.byId("text").orElseThrow()
+                        .getDescriptorClass().getConstructors()[0].newInstance(StandardCharsets.UTF_8);
+                case RAW -> (DataSourceDescriptor<StreamDataStore>) DataSourceProviders.byId("xpbr").orElseThrow()
+                        .getDescriptorClass().getConstructors()[0].newInstance();
+            };
+        } catch (Exception ex) {
+            throw new AssertionError(ex);
         }
-
-        throw new AssertionError();
     }
 
     @SuppressWarnings("unchecked")
+    @SneakyThrows
+    public static StructureDataSourceDescriptor<LocalFileDataStore> createLocalStructureDescriptor() {
+        return (StructureDataSourceDescriptor<LocalFileDataStore>)
+                DataSourceProviders.byId("json").orElseThrow().getDescriptorClass()
+                        .getDeclaredConstructors()[0].newInstance();
+    }
+
+    @SuppressWarnings("unchecked")
+    @SneakyThrows
+    public static RawDataSourceDescriptor<LocalFileDataStore> createLocalRawDescriptor() {
+        return (RawDataSourceDescriptor<LocalFileDataStore>)
+                DataSourceProviders.byId("binary").orElseThrow().getDescriptorClass()
+                        .getDeclaredConstructors()[0].newInstance();
+    }
+
+    @SuppressWarnings("unchecked")
+    @SneakyThrows
+    public static TextDataSourceDescriptor<LocalFileDataStore> createLocalTextDescriptor() {
+        return (TextDataSourceDescriptor<LocalFileDataStore>)
+                DataSourceProviders.byId("text").orElseThrow().getDescriptorClass()
+                        .getDeclaredConstructors()[0].newInstance();
+    }
+
+    @SuppressWarnings("unchecked")
+    @SneakyThrows
     public static TableDataSourceDescriptor<LocalFileDataStore> createLocalTableDescriptor(TupleType type) {
-        try {
-            return (TableDataSourceDescriptor<LocalFileDataStore>)
-                    DataSourceProviders.byId("xpbt").orElseThrow().getDescriptorClass()
-                            .getDeclaredConstructors()[0].newInstance(type);
-        } catch (Exception ex) {
-            ErrorEvent.fromThrowable(ex).terminal(true).build().handle();
-            return null;
-        }
+        return (TableDataSourceDescriptor<LocalFileDataStore>)
+                DataSourceProviders.byId("xpbt").orElseThrow().getDescriptorClass()
+                        .getDeclaredConstructors()[0].newInstance(type);
     }
 
     public static Optional<DataSourceProvider> byDescriptorClass(Class<?> clazz) {
@@ -85,7 +105,7 @@ public class DataSourceProviders {
         }
 
         return ALL.stream().filter(d -> d.getFileProvider() != null)
-                .filter(d -> d.supportsStore(store)).findAny();
+                .filter(d -> d.couldSupportStore(store)).findAny();
     }
 
     public static Set<DataSourceProvider> getAll() {

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

@@ -0,0 +1,64 @@
+package io.xpipe.extension;
+
+import io.xpipe.core.store.DataStore;
+import io.xpipe.core.store.FileDataStore;
+import io.xpipe.core.store.StreamDataStore;
+
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+
+public interface SimpleFileDataSourceProvider extends DataSourceProvider {
+
+    @Override
+    default Optional<String> determineDefaultName(DataStore store) {
+        if (store instanceof FileDataStore l) {
+            var n = l.getFileName();
+            var i = n.lastIndexOf('.');
+            return Optional.of(i != -1 ? n.substring(0, i) : n);
+        }
+
+        return Optional.empty();
+    }
+
+    @Override
+    default boolean prefersStore(DataStore store) {
+        for (var e : getSupportedExtensions().entrySet()) {
+            if (e.getValue() == null) {
+                continue;
+            }
+
+            if (store instanceof FileDataStore l) {
+                return l.getFileName().matches("\\." + e.getValue() + "$");
+            }
+        }
+        return false;
+    }
+
+    @Override
+    default boolean couldSupportStore(DataStore store) {
+        return store instanceof StreamDataStore;
+    }
+
+    default String getNameI18nKey() {
+        return i18nKey("displayName");
+    }
+    Map<String, List<String>> getSupportedExtensions();
+
+    @Override
+    default FileProvider getFileProvider() {
+        return new FileProvider() {
+            @Override
+            public String getFileName() {
+                return I18n.get(getNameI18nKey());
+            }
+
+            @Override
+            public Map<String, List<String>> getFileExtensions() {
+                var map = new LinkedHashMap<>(getSupportedExtensions());
+                return map;
+            }
+        };
+    }
+}

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

@@ -0,0 +1,35 @@
+package io.xpipe.extension;
+
+import io.xpipe.core.source.DataSourceDescriptor;
+import io.xpipe.core.source.DataSourceInfo;
+import io.xpipe.core.store.DataStore;
+
+import java.lang.reflect.InvocationTargetException;
+import java.util.List;
+
+public interface UniformDataSourceProvider extends DataSourceProvider {
+
+    @Override
+    default ConfigProvider getConfigProvider() {
+        return ConfigProvider.empty(List.of(getId()), this::createDefaultDescriptor);
+    }
+
+    @Override
+    default DataSourceDescriptor<?> createDefaultDescriptor() {
+        try {
+            return (DataSourceDescriptor<?>) getDescriptorClass().getDeclaredConstructors()[0].newInstance();
+        } catch (InstantiationException | IllegalAccessException | InvocationTargetException e) {
+            throw new AssertionError(e);
+        }
+    }
+
+    @Override
+    default DataSourceDescriptor<?> createDefaultDescriptor(DataStore input) throws Exception {
+        return createDefaultDescriptor();
+    }
+
+    @Override
+    default DataSourceDescriptor<?> createDefaultWriteDescriptor(DataStore input, DataSourceInfo info) throws Exception {
+        return createDefaultDescriptor();
+    }
+}

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

@@ -7,10 +7,10 @@ module io.xpipe.extension {
     exports io.xpipe.extension.event;
     exports io.xpipe.extension.prefs;
 
-    requires io.xpipe.core;
-    requires javafx.base;
+    requires transitive io.xpipe.core;
+    requires transitive javafx.base;
     requires javafx.graphics;
-    requires javafx.controls;
+    requires transitive javafx.controls;
     requires io.xpipe.fxcomps;
     requires org.apache.commons.collections4;
     requires static lombok;

samples/sample_extensions/file_data_source_sample/build.gradle

@@ -0,0 +1,13 @@
+plugins {
+    id 'java'
+    id "org.moditect.gradleplugin" version "1.0.0-rc3"
+}
+
+apply from: "$rootDir/deps/java.gradle"
+apply from: "$rootDir/deps/javafx.gradle"
+apply from: "$rootDir/deps/lombok.gradle"
+apply from: "$rootDir/deps/extension.gradle"
+
+configurations {
+    compileOnly.extendsFrom(dep)
+}

samples/sample_extensions/file_data_source_sample/src/main/java/io/xpipe/ext/file_data_source_sample/MyRawFileDescriptor.java

@@ -0,0 +1,18 @@
+package io.xpipe.ext.json;
+
+import io.xpipe.core.source.RawDataSourceDescriptor;
+import io.xpipe.core.source.RawReadConnection;
+import io.xpipe.core.source.RawWriteConnection;
+import io.xpipe.core.store.StreamDataStore;
+
+public class MyRawFileDescriptor extends RawDataSourceDescriptor<StreamDataStore> {
+    @Override
+    protected RawWriteConnection newWriteConnection(StreamDataStore store) {
+        return new MyRawFileWriteConnection(store);
+    }
+
+    @Override
+    protected RawReadConnection newReadConnection(StreamDataStore store) {
+        return new MyRawFileReadConnection(store);
+    }
+}

samples/sample_extensions/file_data_source_sample/src/main/java/io/xpipe/ext/file_data_source_sample/MyRawFileProvider.java

@@ -0,0 +1,30 @@
+package io.xpipe.ext.json;
+
+import io.xpipe.core.source.DataSourceDescriptor;
+import io.xpipe.core.source.DataSourceType;
+import io.xpipe.extension.DataSourceProvider;
+import io.xpipe.extension.SimpleFileDataSourceProvider;
+import io.xpipe.extension.UniformDataSourceProvider;
+
+import java.util.LinkedHashMap;
+import java.util.Map;
+
+public class MyRawFileProvider implements UniformDataSourceProvider, SimpleFileDataSourceProvider, DataSourceProvider {
+
+    @Override
+    public DataSourceType getPrimaryType() {
+        return DataSourceType.RAW;
+    }
+
+    @Override
+    public Map<String, String> getSupportedExtensions() {
+        var map = new LinkedHashMap<String, String>();
+        map.put(i18nKey("fileName"), "myf");
+        return map;
+    }
+
+    @Override
+    public Class<? extends DataSourceDescriptor<?>> getDescriptorClass() {
+        return MyRawFileDescriptor.class;
+    }
+}

samples/sample_extensions/file_data_source_sample/src/main/java/io/xpipe/ext/file_data_source_sample/MyRawFileReadConnection.java

@@ -0,0 +1,43 @@
+package io.xpipe.ext.json;
+
+import io.xpipe.core.source.RawReadConnection;
+import io.xpipe.core.store.StreamDataStore;
+
+import java.io.InputStream;
+
+public class MyRawFileReadConnection implements RawReadConnection {
+
+    private InputStream inputStream;
+    private final StreamDataStore store;
+
+    public MyRawFileReadConnection(StreamDataStore store) {
+        this.store = store;
+    }
+
+    @Override
+    public void init() throws Exception {
+        if (inputStream != null) {
+            throw new IllegalStateException("Already initialized");
+        }
+
+        inputStream = store.openInput();
+    }
+
+    @Override
+    public void close() throws Exception {
+        if (inputStream == null) {
+            throw new IllegalStateException("Not initialized");
+        }
+
+        inputStream.close();
+    }
+
+    @Override
+    public byte[] readBytes(int max) throws Exception {
+        if (inputStream == null) {
+            throw new IllegalStateException("Not initialized");
+        }
+
+        return inputStream.readNBytes(max);
+    }
+}

samples/sample_extensions/file_data_source_sample/src/main/java/io/xpipe/ext/file_data_source_sample/MyRawFileWriteConnection.java

@@ -0,0 +1,43 @@
+package io.xpipe.ext.json;
+
+import io.xpipe.core.source.RawWriteConnection;
+import io.xpipe.core.store.StreamDataStore;
+
+import java.io.OutputStream;
+
+public class MyRawFileWriteConnection implements RawWriteConnection {
+
+    private final StreamDataStore store;
+    private OutputStream outputStream;
+
+    public MyRawFileWriteConnection(StreamDataStore store) {
+        this.store = store;
+    }
+
+    @Override
+    public void init() throws Exception {
+        if (outputStream != null) {
+            throw new IllegalStateException("Already initialized");
+        }
+
+        outputStream = store.openOutput();
+    }
+
+    @Override
+    public void close() throws Exception {
+        if (outputStream == null) {
+            throw new IllegalStateException("Not initialized");
+        }
+
+        outputStream.close();
+    }
+
+    @Override
+    public void write(byte[] bytes) throws Exception {
+        if (outputStream == null) {
+            throw new IllegalStateException("Not initialized");
+        }
+
+        outputStream.write(bytes);
+    }
+}

samples/sample_extensions/file_data_source_sample/src/main/java/module-info.java

@@ -0,0 +1,13 @@
+import io.xpipe.ext.json.MyRawFileProvider;
+import io.xpipe.extension.DataSourceProvider;
+
+module io.xpipe.ext.file_data_source_sample {
+    exports io.xpipe.ext.json;
+
+    opens io.xpipe.ext.json;
+
+    requires io.xpipe.core;
+    requires io.xpipe.extension;
+
+    provides DataSourceProvider with MyRawFileProvider;
+}

samples/sample_extensions/file_data_source_sample/src/main/resources/io/xpipe/ext/file_data_source_sample/resources/lang/translations_de.properties

@@ -0,0 +1,3 @@
+displayName=Mein Dateiformat
+description=Meine Dateiformat-Beschreibung
+fileName=Mein Dateiformat Datei

samples/sample_extensions/file_data_source_sample/src/main/resources/io/xpipe/ext/file_data_source_sample/resources/lang/translations_en.properties

@@ -0,0 +1,3 @@
+displayName=My file format
+description=My file format description
+fileName=My file format file