[polymer] Merge of master into polymer10-migration

netlog_viewer/socket_pool_wrapper.js

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+var SocketPoolWrapper = (function() {
+  'use strict';
+
+  /**
+   * SocketPoolWrapper is a wrapper around socket pools entries.  It's
+   * used by the log and sockets view to print tables containing both
+   * a synopsis of the state of all pools, and listing the groups within
+   * individual pools.
+   *
+   * The constructor takes a socket pool and its parent, and generates a
+   * unique name from the two, which is stored as |fullName|.  |parent|
+   * must itself be a SocketPoolWrapper.
+   *
+   * @constructor
+   */
+  function SocketPoolWrapper(socketPool, parent) {
+    this.origPool = socketPool;
+    this.fullName = socketPool.name;
+    if (this.fullName != socketPool.type)
+      this.fullName += ' (' + socketPool.type + ')';
+    if (parent)
+      this.fullName = parent.fullName + '->' + this.fullName;
+  }
+
+  /**
+   * Returns an array of SocketPoolWrappers created from each of the socket
+   * pools in |socketPoolInfo|.  Nested socket pools appear immediately after
+   * their parent, and groups of nodes from trees with root nodes with the same
+   * id are placed adjacent to each other.
+   */
+  SocketPoolWrapper.createArrayFrom = function(socketPoolInfo) {
+    // Create SocketPoolWrappers for each socket pool and separate socket pools
+    // them into different arrays based on root node name.
+    var socketPoolGroups = [];
+    var socketPoolNameLists = {};
+    for (var i = 0; i < socketPoolInfo.length; ++i) {
+      var name = socketPoolInfo[i].name;
+      if (!socketPoolNameLists[name]) {
+        socketPoolNameLists[name] = [];
+        socketPoolGroups.push(socketPoolNameLists[name]);
+      }
+      addSocketPoolsToList(socketPoolNameLists[name], socketPoolInfo[i], null);
+    }
+
+    // Merge the arrays.
+    var socketPoolList = [];
+    for (var i = 0; i < socketPoolGroups.length; ++i) {
+      socketPoolList = socketPoolList.concat(socketPoolGroups[i]);
+    }
+    return socketPoolList;
+  };
+
+  /**
+   * Recursively creates SocketPoolWrappers from |origPool| and all its
+   * children and adds them all to |socketPoolList|.  |parent| is the
+   * SocketPoolWrapper for the parent of |origPool|, or null, if it's
+   * a top level socket pool.
+   */
+  function addSocketPoolsToList(socketPoolList, origPool, parent) {
+    var socketPool = new SocketPoolWrapper(origPool, parent);
+    socketPoolList.push(socketPool);
+    if (origPool.nested_pools) {
+      for (var i = 0; i < origPool.nested_pools.length; ++i) {
+        addSocketPoolsToList(socketPoolList,
+                              origPool.nested_pools[i],
+                              socketPool);
+      }
+    }
+  }
+
+  /**
+   * Returns a table printer containing information on each
+   * SocketPoolWrapper in |socketPools|.
+   */
+  SocketPoolWrapper.createTablePrinter = function(socketPools) {
+    var tablePrinter = new TablePrinter();
+    tablePrinter.addHeaderCell('Name');
+    tablePrinter.addHeaderCell('Handed Out');
+    tablePrinter.addHeaderCell('Idle');
+    tablePrinter.addHeaderCell('Connecting');
+    tablePrinter.addHeaderCell('Max');
+    tablePrinter.addHeaderCell('Max Per Group');
+    tablePrinter.addHeaderCell('Generation');
+
+    for (var i = 0; i < socketPools.length; i++) {
+      var origPool = socketPools[i].origPool;
+
+      tablePrinter.addRow();
+      tablePrinter.addCell(socketPools[i].fullName);
+
+      tablePrinter.addCell(origPool.handed_out_socket_count);
+      var idleCell = tablePrinter.addCell(origPool.idle_socket_count);
+      var connectingCell =
+          tablePrinter.addCell(origPool.connecting_socket_count);
+
+      if (origPool.groups) {
+        var idleSources = [];
+        var connectingSources = [];
+        for (var groupName in origPool.groups) {
+          var group = origPool.groups[groupName];
+          idleSources = idleSources.concat(group.idle_sockets);
+          connectingSources = connectingSources.concat(group.connect_jobs);
+        }
+        idleCell.link = sourceListLink(idleSources);
+        connectingCell.link = sourceListLink(connectingSources);
+      }
+
+      tablePrinter.addCell(origPool.max_socket_count);
+      tablePrinter.addCell(origPool.max_sockets_per_group);
+      tablePrinter.addCell(origPool.pool_generation_number);
+    }
+    return tablePrinter;
+  };
+
+  SocketPoolWrapper.prototype = {
+    /**
+     * Returns a table printer containing information on all a
+     * socket pool's groups.
+     */
+    createGroupTablePrinter: function() {
+      var tablePrinter = new TablePrinter();
+      tablePrinter.setTitle(this.fullName);
+
+      tablePrinter.addHeaderCell('Name');
+      tablePrinter.addHeaderCell('Pending');
+      tablePrinter.addHeaderCell('Top Priority');
+      tablePrinter.addHeaderCell('Active');
+      tablePrinter.addHeaderCell('Idle');
+      tablePrinter.addHeaderCell('Connect Jobs');
+      tablePrinter.addHeaderCell('Backup Timer');
+      tablePrinter.addHeaderCell('Stalled');
+
+      for (var groupName in this.origPool.groups) {
+        var group = this.origPool.groups[groupName];
+
+        tablePrinter.addRow();
+        tablePrinter.addCell(groupName);
+        tablePrinter.addCell(group.pending_request_count);
+        if (group.top_pending_priority != undefined)
+          tablePrinter.addCell(group.top_pending_priority);
+        else
+          tablePrinter.addCell('-');
+
+        tablePrinter.addCell(group.active_socket_count);
+        var idleCell = tablePrinter.addCell(group.idle_sockets.length);
+        var connectingCell = tablePrinter.addCell(group.connect_jobs.length);
+
+        idleCell.link = sourceListLink(group.idle_sockets);
+        connectingCell.link = sourceListLink(group.connect_jobs);
+
+        tablePrinter.addCell(
+            group.backup_job_timer_is_running ? 'started' : 'stopped');
+        tablePrinter.addCell(group.is_stalled);
+      }
+      return tablePrinter;
+    }
+  };
+
+  /**
+   * Takes in a list of source IDs and returns a link that will select the
+   * specified sources.
+   */
+  function sourceListLink(sources) {
+    if (!sources.length)
+      return null;
+    return '#events&q=id:' + sources.join(',');
+  }
+
+  return SocketPoolWrapper;
+})();
+