| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.squareup.okhttp; |
| |
| import libcore.net.event.NetworkEventDispatcher; |
| import libcore.net.event.NetworkEventListener; |
| |
| /** |
| * A provider of the shared Android {@link ConnectionPool}. This class is aware of network |
| * configuration change events: When the network configuration changes the pool object is discarded |
| * and a later calls to {@link #get()} will return a new pool. |
| */ |
| public class ConfigAwareConnectionPool { |
| |
| private static final long CONNECTION_POOL_DEFAULT_KEEP_ALIVE_DURATION_MS = 5 * 60 * 1000; // 5 min |
| |
| private static final int CONNECTION_POOL_MAX_IDLE_CONNECTIONS; |
| private static final long CONNECTION_POOL_KEEP_ALIVE_DURATION_MS; |
| static { |
| String keepAliveProperty = System.getProperty("http.keepAlive"); |
| String keepAliveDurationProperty = System.getProperty("http.keepAliveDuration"); |
| String maxIdleConnectionsProperty = System.getProperty("http.maxConnections"); |
| CONNECTION_POOL_KEEP_ALIVE_DURATION_MS = (keepAliveDurationProperty != null |
| ? Long.parseLong(keepAliveDurationProperty) |
| : CONNECTION_POOL_DEFAULT_KEEP_ALIVE_DURATION_MS); |
| if (keepAliveProperty != null && !Boolean.parseBoolean(keepAliveProperty)) { |
| CONNECTION_POOL_MAX_IDLE_CONNECTIONS = 0; |
| } else if (maxIdleConnectionsProperty != null) { |
| CONNECTION_POOL_MAX_IDLE_CONNECTIONS = Integer.parseInt(maxIdleConnectionsProperty); |
| } else { |
| CONNECTION_POOL_MAX_IDLE_CONNECTIONS = 5; |
| } |
| } |
| |
| private static final ConfigAwareConnectionPool instance = new ConfigAwareConnectionPool(); |
| |
| private final NetworkEventDispatcher networkEventDispatcher; |
| |
| /** |
| * {@code true} if the ConnectionPool reset has been registered with the |
| * {@link NetworkEventDispatcher}. |
| */ |
| private boolean networkEventListenerRegistered; |
| |
| private ConnectionPool connectionPool; |
| |
| /** Visible for testing. Use {@link #getInstance()} */ |
| protected ConfigAwareConnectionPool(NetworkEventDispatcher networkEventDispatcher) { |
| this.networkEventDispatcher = networkEventDispatcher; |
| } |
| |
| private ConfigAwareConnectionPool() { |
| networkEventDispatcher = NetworkEventDispatcher.getInstance(); |
| } |
| |
| public static ConfigAwareConnectionPool getInstance() { |
| return instance; |
| } |
| |
| /** |
| * Returns the current {@link ConnectionPool} to use. |
| */ |
| public synchronized ConnectionPool get() { |
| if (connectionPool == null) { |
| // Only register the listener once the first time a ConnectionPool is created. |
| if (!networkEventListenerRegistered) { |
| networkEventDispatcher.addListener(new NetworkEventListener() { |
| @Override |
| public void onNetworkConfigurationChanged() { |
| synchronized (ConfigAwareConnectionPool.this) { |
| // If the network config has changed then existing pooled connections should not be |
| // re-used. By setting connectionPool to null it ensures that the next time |
| // getConnectionPool() is called a new pool will be created. |
| connectionPool = null; |
| } |
| } |
| }); |
| networkEventListenerRegistered = true; |
| } |
| connectionPool = new ConnectionPool( |
| CONNECTION_POOL_MAX_IDLE_CONNECTIONS, CONNECTION_POOL_KEEP_ALIVE_DURATION_MS); |
| } |
| return connectionPool; |
| } |
| } |