Addition of AnalysisServer.isSocketOpen for clients to know if the server is still running.

pkg/analysis_server/tool/spec/codegen_analysis_server.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /**
  * Code generation for the file "AnalysisServer.java".
  */
 library java.generator.server;
 
 import 'api.dart';
@@ skipping 60 matching lines @@
  * Remove the given listener from the list of listeners that will receive notification when new
    * analysis results become available.
  * 
  * @param listener the listener to be removed
  */''');
         writeln(
             'public void removeAnalysisServerListener(AnalysisServerListener listener);');
       });
 
       //
+      // isSocketOpen()
+      //
+      publicMethod('isSocketOpen', () {
+              writeln('''/**
+ * Return {@code true} if the socket is open.
+ */''');
+        writeln(
+          'public boolean isSocketOpen();');
+        });
+
+      //
       // start(..)
       //
       publicMethod('start', () {
         writeln('''/**
  * Start the analysis server.
  */''');
         writeln('public void start() throws Exception;');
       });
       super.visitApi();
     });
@@ skipping 16 matching lines @@
         }
       }
       if (request.result != null) {
         arguments.add('${consumerName(request)} consumer');
       }
       write(arguments.join(', '));
       writeln(');');
     });
   }
 }