Make more use of generated code in analysis server.

pkg/analysis_server/lib/src/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.
 
 library analysis.server;
 
 import 'dart:async';
 import 'dart:collection';
 
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analysis_server/src/analysis_logger.dart';
 import 'package:analysis_server/src/channel.dart';
 import 'package:analysis_server/src/constants.dart';
 import 'package:analysis_server/src/context_manager.dart';
 import 'package:analysis_server/src/operation/operation_analysis.dart';
 import 'package:analysis_server/src/operation/operation.dart';
 import 'package:analysis_server/src/operation/operation_queue.dart';
 import 'package:analysis_server/src/package_map_provider.dart';
 import 'package:analysis_server/src/protocol.dart';
-import 'package:analysis_server/src/protocol2.dart' show AnalysisService,
-    ServerService, AddContentOverlay, ChangeContentOverlay,
-    RemoveContentOverlay, SourceEdit;
+import 'package:analysis_server/src/protocol2.dart' show AddContentOverlay,
+    AnalysisService, AnalysisStatus, ChangeContentOverlay,
+    RemoveContentOverlay, ServerErrorParams, ServerService, ServerStatusParams,
+    SourceEdit;
 import 'package:analyzer/source/package_map_resolver.dart';
 import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/generated/sdk.dart';
 import 'package:analyzer/src/generated/source_io.dart';
 import 'package:analyzer/src/generated/java_engine.dart';
 import 'package:analysis_server/src/services/index/index.dart';
 import 'package:analysis_server/src/services/search/search_engine.dart';
 import 'package:analyzer/src/generated/element.dart';
@@ skipping 403 matching lines @@
     // Only send status when subscribed.
     if (!serverServices.contains(ServerService.STATUS)) {
       return;
     }
     // Only send status when it changes
     bool isAnalyzing = operation != null;
     if (statusAnalyzing == isAnalyzing) {
       return;
     }
     statusAnalyzing = isAnalyzing;
-    Notification notification = new Notification(SERVER_STATUS);
-    Map<String, Object> analysis = new HashMap();
-    analysis['analyzing'] = isAnalyzing;
-    notification.params['analysis'] = analysis;
-    channel.sendNotification(notification);
+    AnalysisStatus analysis = new AnalysisStatus(isAnalyzing);
+    channel.sendNotification(new ServerStatusParams(
+        analysis: analysis).toNotification());
   }
 
   /**
    * Implementation for `analysis.setAnalysisRoots`.
    *
    * TODO(scheglov) implement complete projects/contexts semantics.
    *
    * The current implementation is intentionally simplified and expected
    * that only folders are given each given folder corresponds to the exactly
    * one context.
@@ skipping 336 matching lines @@
       exceptionString = 'null exception';
     }
     // prepare stackTrace.toString()
     String stackTraceString;
     if (stackTrace != null) {
       stackTraceString = stackTrace.toString();
     } else {
       stackTraceString = 'null stackTrace';
     }
     // send the notification
-    Notification notification = new Notification(SERVER_ERROR);
-    notification.setParameter(FATAL, true);
-    notification.setParameter(MESSAGE, exceptionString);
-    notification.setParameter(STACK_TRACE, stackTraceString);
-    channel.sendNotification(notification);
+    channel.sendNotification(new ServerErrorParams(true, exceptionString,
+        stackTraceString).toNotification());
   }
 }
 
 
 typedef void OptionUpdater(AnalysisOptionsImpl options);