Deserialization support for AWS LSP extended InitializeResult (#49)

plugin/META-INF/MANIFEST.MF

@@ -115,4 +115,4 @@ Bundle-Classpath: .,
  target/dependency/utils-2.25.33.jar,
  target/dependency/xml-apis-ext-1.3.04.jar,
  target/dependency/xmlgraphics-commons-2.9.jar,
- target/dependency/xz-1.9.jar
+ target/dependency/xz-1.9.jar

plugin/src/software/aws/toolkits/eclipse/amazonq/lsp/AmazonQLspServerBuilder.java

@@ -10,7 +10,11 @@
 import org.eclipse.lsp4j.jsonrpc.MessageConsumer;
 import org.eclipse.lsp4j.jsonrpc.messages.Message;
 import org.eclipse.lsp4j.jsonrpc.messages.RequestMessage;
+import org.eclipse.lsp4j.jsonrpc.messages.ResponseMessage;
 
+import software.aws.toolkits.eclipse.amazonq.lsp.model.AwsExtendedInitializeResult;
+import software.aws.toolkits.eclipse.amazonq.lsp.model.Command;
+import software.aws.toolkits.eclipse.amazonq.lsp.model.QuickActionsCommandGroup;
 import software.aws.toolkits.eclipse.amazonq.providers.LspProvider;
 import software.aws.toolkits.eclipse.amazonq.util.ClientMetadata;
 
@@ -19,6 +23,9 @@ public class AmazonQLspServerBuilder extends Builder<AmazonQLspServer> {
     @Override
     public final Launcher<AmazonQLspServer> create() {
         super.setRemoteInterface(AmazonQLspServer.class);
+        super.configureGson(builder -> {
+           builder.registerTypeAdapterFactory(new QLspTypeAdapterFactory());
+        });
         Launcher<AmazonQLspServer> launcher = super.create();
         LspProvider.setServer(AmazonQLspServer.class, launcher.getRemoteProxy());
         return launcher;
@@ -31,6 +38,15 @@ protected final MessageConsumer wrapMessageConsumer(final MessageConsumer consum
                 InitializeParams initParams = (InitializeParams) ((RequestMessage) message).getParams();
                 initParams.setClientInfo(new ClientInfo(ClientMetadata.getPluginName(), ClientMetadata.getPluginVersion()));
             }
+            if (message instanceof ResponseMessage && ((ResponseMessage) message).getResult() instanceof AwsExtendedInitializeResult) {
+                AwsExtendedInitializeResult result = (AwsExtendedInitializeResult) ((ResponseMessage) message).getResult();
+                for (QuickActionsCommandGroup commandGroups : result.getAwsServerCapabilities().chatOptions().quickActions().quickActionsCommandGroups()) {
+                    for (Command command : commandGroups.commands()) {
+                        System.out.println("Command: " + command.command());
+                        System.out.println("Description: " + command.description());
+                    }
+                }
+            }
             consumer.consume(message);
         });
     }

plugin/src/software/aws/toolkits/eclipse/amazonq/lsp/QLspTypeAdapterFactory.java

@@ -0,0 +1,42 @@
+// Copyright 2024 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+package software.aws.toolkits.eclipse.amazonq.lsp;
+
+import java.io.IOException;
+
+import org.eclipse.lsp4j.InitializeResult;
+
+import com.google.gson.Gson;
+import com.google.gson.TypeAdapter;
+import com.google.gson.TypeAdapterFactory;
+import com.google.gson.reflect.TypeToken;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonWriter;
+
+import software.aws.toolkits.eclipse.amazonq.lsp.model.AwsExtendedInitializeResult;
+
+public class QLspTypeAdapterFactory implements TypeAdapterFactory {
+
+    @Override
+    @SuppressWarnings("unchecked")
+    public final <T> TypeAdapter<T> create(final Gson gson, final TypeToken<T> type) {
+        if (type.getRawType() == InitializeResult.class) {
+            final TypeAdapter<InitializeResult> delegate = (TypeAdapter<InitializeResult>) gson.getDelegateAdapter(this, type);
+
+            return (TypeAdapter<T>) new TypeAdapter<InitializeResult>() {
+                @Override
+                public void write(final JsonWriter out, final InitializeResult value) throws IOException {
+                    delegate.write(out, value);
+                }
+
+                @Override
+                public InitializeResult read(final JsonReader in) throws IOException {
+                    return gson.fromJson(in, AwsExtendedInitializeResult.class);
+                }
+            };
+        }
+        return null;
+    }
+
+}

plugin/src/software/aws/toolkits/eclipse/amazonq/lsp/model/AwsExtendedInitializeResult.java

@@ -0,0 +1,18 @@
+// Copyright 2024 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+package software.aws.toolkits.eclipse.amazonq.lsp.model;
+
+import org.eclipse.lsp4j.InitializeResult;
+
+public class AwsExtendedInitializeResult extends InitializeResult {
+    private AwsServerCapabilities awsServerCapabilities;
+
+    public final AwsServerCapabilities getAwsServerCapabilities() {
+        return awsServerCapabilities;
+    }
+
+    public final void setAwsServerCapabilities(final AwsServerCapabilities awsServerCapabilities) {
+        this.awsServerCapabilities = awsServerCapabilities;
+    }
+}

plugin/src/software/aws/toolkits/eclipse/amazonq/lsp/model/AwsServerCapabilities.java

@@ -0,0 +1,6 @@
+// Copyright 2024 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+package software.aws.toolkits.eclipse.amazonq.lsp.model;
+
+public record AwsServerCapabilities(ChatOptions chatOptions) { }

plugin/src/software/aws/toolkits/eclipse/amazonq/lsp/model/ChatOptions.java

@@ -0,0 +1,6 @@
+// Copyright 2024 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+package software.aws.toolkits.eclipse.amazonq.lsp.model;
+
+public record ChatOptions(QuickActions quickActions) { }

plugin/src/software/aws/toolkits/eclipse/amazonq/lsp/model/Command.java

@@ -0,0 +1,6 @@
+// Copyright 2024 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+package software.aws.toolkits.eclipse.amazonq.lsp.model;
+
+public record Command(String command, String description) { }

plugin/src/software/aws/toolkits/eclipse/amazonq/lsp/model/QuickActions.java

@@ -0,0 +1,8 @@
+// Copyright 2024 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+package software.aws.toolkits.eclipse.amazonq.lsp.model;
+
+import java.util.List;
+
+public record QuickActions(List<QuickActionsCommandGroup> quickActionsCommandGroups) { }

plugin/src/software/aws/toolkits/eclipse/amazonq/lsp/model/QuickActionsCommandGroup.java

@@ -0,0 +1,8 @@
+// Copyright 2024 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+package software.aws.toolkits.eclipse.amazonq.lsp.model;
+
+import java.util.List;
+
+public record QuickActionsCommandGroup(List<Command> commands) { }