Move service into VM

runtime/bin/vmservice/message.dart

-// Copyright (c) 2013, 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.
-
-part of vmservice;
-
-class Message {
-  final Completer _completer = new Completer.sync();
-  bool get completed => _completer.isCompleted;
-  /// Future of response.
-  Future<String> get response => _completer.future;
-  /// Path.
-  final List<String> path = new List<String>();
-  /// Options.
-  final Map<String, String> options = new Map<String, String>();
-
-  void _setPath(List<String> pathSegments) {
-    if (pathSegments == null) {
-      return;
-    }
-    pathSegments.forEach((String segment) {
-      if (segment == null || segment == '') {
-        return;
-      }
-      path.add(segment);
-    });
-  }
-
-  Message.fromUri(Uri uri) {
-    var split = uri.path.split('/');
-    if (split.length == 0) {
-      setErrorResponse('Invalid uri: $uri.');
-      return;
-    }
-    _setPath(split);
-    options.addAll(uri.queryParameters);
-  }
-
-  Message.fromMap(Map map) {
-    _setPath(map['path']);
-    if (map['options'] != null) {
-      options.addAll(map['options']);
-    }
-  }
-
-  dynamic toJson() {
-    return {
-      'path': path,
-      'options': options
-    };
-  }
-
-  Future<String> send(SendPort sendPort) {
-    final receivePort = new RawReceivePort();
-    receivePort.handler = (value) {
-      receivePort.close();
-      if (value is Exception) {
-        _completer.completeError(value);
-      } else {
-        _completer.complete(value);
-      }
-    };
-    var keys = options.keys.toList();
-    var values = options.values.toList();
-    var request = [receivePort.sendPort, path, keys, values];
-    sendServiceMessage(sendPort, request);
-    return _completer.future;
-  }
-
-  void setResponse(String response) {
-    _completer.complete(response);
-  }
-
-  void setErrorResponse(String error) {
-    _completer.complete(JSON.encode({
-        'type': 'Error',
-        'msg': error,
-        'path': path,
-        'options': options
-    }));
-  }
-}