GH-1621: added preference to enable/disable embedded MCP server - eclipse part

Author: martinlippert

eclipse-language-servers/org.springframework.tooling.boot.ls/plugin.xml

@@ -221,6 +221,12 @@
             id="org.springframework.tooling.boot.xml.ls.preferences"
             name="XML Config Files">
       </page>
+      <page
+            category="org.springsource.ide.eclipse.commons.preferencePage"
+            class="org.springframework.tooling.boot.ls.prefs.AiConfigPreferencePage"
+            id="org.springframework.tooling.boot.ls.ai.preferences"
+            name="AI">
+      </page>
       <page
             class="org.springframework.tooling.boot.ls.prefs.BootJavaPreferencesPage"
             id="org.springsource.ide.eclipse.commons.preferencePage"

eclipse-language-servers/org.springframework.tooling.boot.ls/src/org/springframework/tooling/boot/ls/Constants.java

@@ -58,4 +58,6 @@ public class Constants {
 
 	public static final String PREF_CODELENS_QUERY_METHODS = "boot-java.java.codelens-over-query-methods";
 
+	public static final String PREF_AI_ENABLE_MCP = "boot-java.ai.mcp-server-enabled";
+	
 }

eclipse-language-servers/org.springframework.tooling.boot.ls/src/org/springframework/tooling/boot/ls/DelegatingStreamConnectionProvider.java

@@ -256,6 +256,12 @@ private void sendConfiguration() {
 			)
 		);
 
+		bootJavaObj.put("ai", Map.of(
+				"mcp-server-enabled", preferenceStore.getBoolean(Constants.PREF_AI_ENABLE_MCP)
+			)
+		);
+		
+
 		settings.put("boot-java", bootJavaObj);
 
 		settings.put("http", createHttpProxySettings());

eclipse-language-servers/org.springframework.tooling.boot.ls/src/org/springframework/tooling/boot/ls/SpringBootLanguageServer.java

@@ -46,6 +46,11 @@ private List<String> getJVMArgs() {
 		args.add("-XX:TieredStopAtLevel=1");
 		args.add("-Dspring.config.location=classpath:/application.properties");
 
+		// disable embedded MCP server, depending on preference
+		if (BootLanguageServerPlugin.getDefault().getPreferenceStore().getBoolean(Constants.PREF_START_LS_EARLY) == false) {
+			args.add("-Dspring.main.web-application-type=NONE");
+		}
+		
 		addCustomJVMArgs(args);
 
 		return args;

eclipse-language-servers/org.springframework.tooling.boot.ls/src/org/springframework/tooling/boot/ls/prefs/AiConfigPreferencePage.java

@@ -0,0 +1,43 @@
+/*******************************************************************************
+ * Copyright (c) 2025 Broadcom
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     Broadcom - initial API and implementation
+ *******************************************************************************/
+package org.springframework.tooling.boot.ls.prefs;
+
+import org.eclipse.jface.preference.BooleanFieldEditor;
+import org.eclipse.jface.preference.FieldEditorPreferencePage;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.ui.IWorkbench;
+import org.eclipse.ui.IWorkbenchPreferencePage;
+import org.springframework.tooling.boot.ls.BootLanguageServerPlugin;
+import org.springframework.tooling.boot.ls.Constants;
+
+public class AiConfigPreferencePage extends FieldEditorPreferencePage implements IWorkbenchPreferencePage {
+	
+	public AiConfigPreferencePage() {
+		super(GRID);
+	}
+	
+	@Override
+	protected void adjustGridLayout() {
+	}
+
+	@Override
+	public void init(IWorkbench workbench) {
+		setPreferenceStore(BootLanguageServerPlugin.getDefault().getPreferenceStore());
+	}
+	
+	@Override
+	protected void createFieldEditors() {
+		Composite fieldEditorParent = getFieldEditorParent();
+		addField(new BooleanFieldEditor(Constants.PREF_AI_ENABLE_MCP, "Enable embedded MCP server", fieldEditorParent));
+	}
+
+
+}

eclipse-language-servers/org.springframework.tooling.boot.ls/src/org/springframework/tooling/boot/ls/prefs/PrefsInitializer.java

@@ -67,6 +67,8 @@ public void initializeDefaultPreferences() {
 		preferenceStore.setDefault(Constants.PREF_BEANS_STRUCTURE_TREE, true);
 		preferenceStore.setDefault(Constants.PREF_SYMBOLS_FROM_NEW_INDEX, true);
 		preferenceStore.setDefault(Constants.PREF_CODELENS_QUERY_METHODS, true);
+		
+		preferenceStore.setDefault(Constants.PREF_AI_ENABLE_MCP, true);
 	}
 
 }