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gaia/tests/jsmarionette/client/marionette-client/lib/node/connection-manager.js

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+'use strict';
+var CommandStream = require('../marionette/command-stream');
+var debug = require('debug')('marionette:connection-manager');
+
+/**
+ * Socket class
+ */
+ConnectionManger.Socket = require('net').Socket;
+
+/**
+ * @class
+ * @constructor
+ */
+function ConnectionManger() {
+  this.connections = {};
+}
+
+ConnectionManger.prototype = {
+
+  currentId: 0,
+
+  defaultPort: 2828,
+
+  /**
+   * Opens a connection and returns the id and connection
+   *
+   *    manager.open()
+   *    // => {id: 0, connection: new CommandStream() }
+   *
+   * @this
+   * @param {Numeric} port port number.
+   * @return {Object} { id: connectionId, connection: commandStream }.
+   */
+  open: function open(port) {
+    var socket,
+        stream,
+        id = this.currentId++,
+        closeFn = this.close.bind(this, id);
+
+    port = port || this.defaultPort;
+
+    socket = new ConnectionManger.Socket();
+    socket.on('close', closeFn);
+    socket.on('end', closeFn);
+
+    stream = new CommandStream(socket);
+
+    socket.on('error', function() {
+      debug(arguments);
+    });
+
+    socket.on('end', function() {
+      debug('socket close');
+    });
+
+    socket.connect(port);
+    this.connections[id] = stream;
+
+    return { id: id, connection: stream };
+  },
+
+  /**
+   * Returns connection by id
+   *
+   * @this
+   * @param {Number} id connection id.
+   * @return {CommandStream} command stream for connection id.
+   */
+  get: function get(id) {
+    return this.connections[id];
+  },
+
+  /**
+   * Closes and removes a connection.
+   *
+   * @this
+   * @param {Number} id connection id to close.
+   */
+  close: function close(id) {
+    delete this.connections[id];
+  }
+
+};
+
+module.exports = exports = ConnectionManger;