Revert "Extract meta data about open sockets into separate class."

sdk/lib/io/io_resource_info.dart

-// Copyright (c) 2015, 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 dart.io;
-
-const String TCP_STRING = 'TCP';
-const String UDP_STRING = 'UDP';
-
-
-abstract class _IOResourceInfo {
-  final String type;
-  final int id;
-  String get name;
-  static int _count = 0;
-
-  _IOResourceInfo(this.type) : id = _IOResourceInfo.getNextID();
-
-  String toJSON();
-
-  /// Get the full set of values for a specific implementation. This is normally
-  /// looked up based on an id from a referenceValueMap.
-  Map<String, String> get fullValueMap;
-
-  /// The reference map, used to return a list of values, e.g., getting
-  /// all open sockets. The structure of this is shared among all subclasses.
-  Map<String, String> get referenceValueMap =>
-      {
-        // The type for a reference object is prefixed with @ in observatory.
-        'type': '@$type',
-        'id': id,
-        'name': name,
-      };
-
-  static int getNextID() => _count++;
-}
-
-abstract class _ReadWriteResourceInfo extends _IOResourceInfo {
-  int totalRead;
-  int totalWritten;
-  int readCount;
-  int writeCount;
-  double lastRead;
-  double lastWrite;
-
-  _ReadWriteResourceInfo(String type) :
-    totalRead = 0,
-    totalWritten = 0,
-    readCount = 0,
-    writeCount = 0,
-    lastRead = 0.0,
-    lastWrite = 0.0,
-    super(type);
-
-  Map<String, String> get fullValueMap =>
-    {
-      'type': type,
-      'id': id,
-      'name': name,
-      'total_read': totalRead,
-      'total_written': totalWritten,
-      'read_count': readCount,
-      'write_count': writeCount,
-      'last_read': lastRead,
-      'last_write': lastWrite
-    };
-
-  String toJSON() {
-    return JSON.encode(fullValueMap);
-  }
-}
-
-class _SocketResourceInfo extends _ReadWriteResourceInfo {
-  final _NativeSocket socket;
-
-  static Map<int, _SocketResourceInfo> openSockets =
-      new Map<int, _SocketResourceInfo>();
-
-  _SocketResourceInfo(this.socket) : super('_socket') {
-    SocketOpened(this);
-  }
-
-  String get name {
-    if (socket.isListening) {
-      return 'listening:${socket.address.host}:${socket.port}';
-    }
-    var remote = '';
-    try {
-      var remoteHost = socket.remoteAddress.host;
-      var remotePort = socket.remotePort;
-      remote = ' -> $remoteHost:$remotePort';
-    } catch (e) { } // ignored if we can't get the information
-    return '${socket.address.host}:${socket.port}$remote';
-  }
-
-  static Iterable<Map<String, String>> getOpenSocketsList() {
-    return new List.from(openSockets.values.map((e) => e.referenceValueMap));
-  }
-
-  Map<String, String> getSocketInfoMap() {
-    var result = fullValueMap;
-    result['socket_type'] = socket.isTcp ? TCP_STRING : UDP_STRING;
-    result['listening'] = socket.isListening;
-    result['host'] = socket.address.host;
-    result['port'] = socket.port;
-    if (!socket.isListening) {
-      try {
-        result['remote_host'] = socket.remoteAddress.host;
-        result['remote_port'] = socket.remotePort;
-      } catch (e) {
-        // UDP.
-        result['remote_port'] = 'NA';
-        result['remote_host'] = 'NA';
-      }
-    } else {
-      result['remote_port'] = 'NA';
-      result['remote_host'] = 'NA';
-    }
-    result['address_type'] = socket.address.type.name;
-    return result;
-  }
-
-  static Future<ServiceExtensionResponse> getSocketInfoMapByID(
-      String function, Map<String, String> params) {
-    assert(params.containsKey('id'));
-    var id = int.parse(params['id']);
-    var result =
-      openSockets.containsKey(id) ? openSockets[id].getSocketInfoMap() : {};
-    var json = JSON.encode(result);
-    return new Future.value(new ServiceExtensionResponse.result(json));
-  }
-
-  static Future<ServiceExtensionResponse> getOpenSockets(function, params) {
-    assert(function == '__getOpenSockets');
-    var data = {'type': '_opensockets', 'data': getOpenSocketsList()};
-    var json = JSON.encode(data);
-    return new Future.value(new ServiceExtensionResponse.result(json));
-  }
-
-  static Future<ServiceExtensionResponse> getSocketInfo(function, params) {
-    assert(function == '__getSocketInfo');
-    assert(params.containsKey('id'));
-    var result = openSockets.containsKey(params['id']) != null
-        ? openSockets[params['id']].getSocketInfoMap() : {};
-    return
-        Future.value(new ServiceExtensionResponse.result(JSON.encode(result)));
-  }
-
-  static SocketOpened(_SocketResourceInfo info) {
-    assert(!openSockets.containsKey(info.id));
-    openSockets[info.id] = info;
-  }
-
-  static SocketClosed(_SocketResourceInfo info) {
-    assert(openSockets.containsKey(info.id));
-    openSockets.remove(info.id);
-  }
-
-}