org.apache.http.impl.conn.PoolingHttpClientConnectionManager Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of httpclient Show documentation
Show all versions of httpclient Show documentation
Apache HttpComponents Client
/*
* ====================================================================
* 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* , Closeable {
private final Log log = LogFactory.getLog(getClass());
private final ConfigData configData;
private final CPool pool;
private final HttpClientConnectionOperator connectionOperator;
private final AtomicBoolean isShutDown;
private static Registry getDefaultRegistry() {
return RegistryBuilder.create()
.register("http", PlainConnectionSocketFactory.getSocketFactory())
.register("https", SSLConnectionSocketFactory.getSocketFactory())
.build();
}
public PoolingHttpClientConnectionManager() {
this(getDefaultRegistry());
}
public PoolingHttpClientConnectionManager(final long timeToLive, final TimeUnit tunit) {
this(getDefaultRegistry(), null, null ,null, timeToLive, tunit);
}
public PoolingHttpClientConnectionManager(
final Registry socketFactoryRegistry) {
this(socketFactoryRegistry, null, null);
}
public PoolingHttpClientConnectionManager(
final Registry socketFactoryRegistry,
final DnsResolver dnsResolver) {
this(socketFactoryRegistry, null, dnsResolver);
}
public PoolingHttpClientConnectionManager(
final Registry socketFactoryRegistry,
final HttpConnectionFactory connFactory) {
this(socketFactoryRegistry, connFactory, null);
}
public PoolingHttpClientConnectionManager(
final HttpConnectionFactory connFactory) {
this(getDefaultRegistry(), connFactory, null);
}
public PoolingHttpClientConnectionManager(
final Registry socketFactoryRegistry,
final HttpConnectionFactory connFactory,
final DnsResolver dnsResolver) {
this(socketFactoryRegistry, connFactory, null, dnsResolver, -1, TimeUnit.MILLISECONDS);
}
public PoolingHttpClientConnectionManager(
final Registry socketFactoryRegistry,
final HttpConnectionFactory connFactory,
final SchemePortResolver schemePortResolver,
final DnsResolver dnsResolver,
final long timeToLive, final TimeUnit tunit) {
super();
this.configData = new ConfigData();
this.pool = new CPool(
new InternalConnectionFactory(this.configData, connFactory), 2, 20, timeToLive, tunit);
this.connectionOperator = new HttpClientConnectionOperator(
socketFactoryRegistry, schemePortResolver, dnsResolver);
this.isShutDown = new AtomicBoolean(false);
}
PoolingHttpClientConnectionManager(
final CPool pool,
final Lookup socketFactoryRegistry,
final SchemePortResolver schemePortResolver,
final DnsResolver dnsResolver) {
super();
this.configData = new ConfigData();
this.pool = pool;
this.connectionOperator = new HttpClientConnectionOperator(
socketFactoryRegistry, schemePortResolver, dnsResolver);
this.isShutDown = new AtomicBoolean(false);
}
@Override
protected void finalize() throws Throwable {
try {
shutdown();
} finally {
super.finalize();
}
}
public void close() {
shutdown();
}
private String format(final HttpRoute route, final Object state) {
final StringBuilder buf = new StringBuilder();
buf.append("[route: ").append(route).append("]");
if (state != null) {
buf.append("[state: ").append(state).append("]");
}
return buf.toString();
}
private String formatStats(final HttpRoute route) {
final StringBuilder buf = new StringBuilder();
final PoolStats totals = this.pool.getTotalStats();
final PoolStats stats = this.pool.getStats(route);
buf.append("[total kept alive: ").append(totals.getAvailable()).append("; ");
buf.append("route allocated: ").append(stats.getLeased() + stats.getAvailable());
buf.append(" of ").append(stats.getMax()).append("; ");
buf.append("total allocated: ").append(totals.getLeased() + totals.getAvailable());
buf.append(" of ").append(totals.getMax()).append("]");
return buf.toString();
}
private String format(final CPoolEntry entry) {
final StringBuilder buf = new StringBuilder();
buf.append("[id: ").append(entry.getId()).append("]");
buf.append("[route: ").append(entry.getRoute()).append("]");
final Object state = entry.getState();
if (state != null) {
buf.append("[state: ").append(state).append("]");
}
return buf.toString();
}
public ConnectionRequest requestConnection(
final HttpRoute route,
final Object state) {
Args.notNull(route, "HTTP route");
if (this.log.isDebugEnabled()) {
this.log.debug("Connection request: " + format(route, state) + formatStats(route));
}
final Future future = this.pool.lease(route, state, null);
return new ConnectionRequest() {
public boolean cancel() {
return future.cancel(true);
}
public HttpClientConnection get(
final long timeout,
final TimeUnit tunit) throws InterruptedException, ExecutionException, ConnectionPoolTimeoutException {
return leaseConnection(future, timeout, tunit);
}
};
}
protected HttpClientConnection leaseConnection(
final Future future,
final long timeout,
final TimeUnit tunit) throws InterruptedException, ExecutionException, ConnectionPoolTimeoutException {
final CPoolEntry entry;
try {
entry = future.get(timeout, tunit);
if (entry == null || future.isCancelled()) {
throw new InterruptedException();
}
Asserts.check(entry.getConnection() != null, "Pool entry with no connection");
if (this.log.isDebugEnabled()) {
this.log.debug("Connection leased: " + format(entry) + formatStats(entry.getRoute()));
}
return CPoolProxy.newProxy(entry);
} catch (final TimeoutException ex) {
throw new ConnectionPoolTimeoutException("Timeout waiting for connection from pool");
}
}
public void releaseConnection(
final HttpClientConnection managedConn,
final Object state,
final long keepalive, final TimeUnit tunit) {
Args.notNull(managedConn, "Managed connection");
synchronized (managedConn) {
final CPoolEntry entry = CPoolProxy.detach(managedConn);
if (entry == null) {
return;
}
final ManagedHttpClientConnection conn = entry.getConnection();
try {
if (conn.isOpen()) {
entry.setState(state);
entry.updateExpiry(keepalive, tunit != null ? tunit : TimeUnit.MILLISECONDS);
if (this.log.isDebugEnabled()) {
final String s;
if (keepalive > 0) {
s = "for " + (double) keepalive / 1000 + " seconds";
} else {
s = "indefinitely";
}
this.log.debug("Connection " + format(entry) + " can be kept alive " + s);
}
}
} finally {
this.pool.release(entry, conn.isOpen() && entry.isRouteComplete());
if (this.log.isDebugEnabled()) {
this.log.debug("Connection released: " + format(entry) + formatStats(entry.getRoute()));
}
}
}
}
public void connect(
final HttpClientConnection managedConn,
final HttpRoute route,
final int connectTimeout,
final HttpContext context) throws IOException {
Args.notNull(managedConn, "Managed Connection");
Args.notNull(route, "HTTP route");
final ManagedHttpClientConnection conn;
synchronized (managedConn) {
final CPoolEntry entry = CPoolProxy.getPoolEntry(managedConn);
conn = entry.getConnection();
}
final HttpHost host;
if (route.getProxyHost() != null) {
host = route.getProxyHost();
} else {
host = route.getTargetHost();
}
final InetSocketAddress localAddress = route.getLocalSocketAddress();
SocketConfig socketConfig = this.configData.getSocketConfig(host);
if (socketConfig == null) {
socketConfig = this.configData.getDefaultSocketConfig();
}
if (socketConfig == null) {
socketConfig = SocketConfig.DEFAULT;
}
this.connectionOperator.connect(
conn, host, localAddress, connectTimeout, socketConfig, context);
}
public void upgrade(
final HttpClientConnection managedConn,
final HttpRoute route,
final HttpContext context) throws IOException {
Args.notNull(managedConn, "Managed Connection");
Args.notNull(route, "HTTP route");
final ManagedHttpClientConnection conn;
synchronized (managedConn) {
final CPoolEntry entry = CPoolProxy.getPoolEntry(managedConn);
conn = entry.getConnection();
}
this.connectionOperator.upgrade(conn, route.getTargetHost(), context);
}
public void routeComplete(
final HttpClientConnection managedConn,
final HttpRoute route,
final HttpContext context) throws IOException {
Args.notNull(managedConn, "Managed Connection");
Args.notNull(route, "HTTP route");
synchronized (managedConn) {
final CPoolEntry entry = CPoolProxy.getPoolEntry(managedConn);
entry.markRouteComplete();
}
}
public void shutdown() {
if (this.isShutDown.compareAndSet(false, true)) {
this.log.debug("Connection manager is shutting down");
try {
this.pool.shutdown();
} catch (final IOException ex) {
this.log.debug("I/O exception shutting down connection manager", ex);
}
this.log.debug("Connection manager shut down");
}
}
public void closeIdleConnections(final long idleTimeout, final TimeUnit tunit) {
if (this.log.isDebugEnabled()) {
this.log.debug("Closing connections idle longer than " + idleTimeout + " " + tunit);
}
this.pool.closeIdle(idleTimeout, tunit);
}
public void closeExpiredConnections() {
this.log.debug("Closing expired connections");
this.pool.closeExpired();
}
public int getMaxTotal() {
return this.pool.getMaxTotal();
}
public void setMaxTotal(final int max) {
this.pool.setMaxTotal(max);
}
public int getDefaultMaxPerRoute() {
return this.pool.getDefaultMaxPerRoute();
}
public void setDefaultMaxPerRoute(final int max) {
this.pool.setDefaultMaxPerRoute(max);
}
public int getMaxPerRoute(final HttpRoute route) {
return this.pool.getMaxPerRoute(route);
}
public void setMaxPerRoute(final HttpRoute route, final int max) {
this.pool.setMaxPerRoute(route, max);
}
public PoolStats getTotalStats() {
return this.pool.getTotalStats();
}
public PoolStats getStats(final HttpRoute route) {
return this.pool.getStats(route);
}
public SocketConfig getDefaultSocketConfig() {
return this.configData.getDefaultSocketConfig();
}
public void setDefaultSocketConfig(final SocketConfig defaultSocketConfig) {
this.configData.setDefaultSocketConfig(defaultSocketConfig);
}
public ConnectionConfig getDefaultConnectionConfig() {
return this.configData.getDefaultConnectionConfig();
}
public void setDefaultConnectionConfig(final ConnectionConfig defaultConnectionConfig) {
this.configData.setDefaultConnectionConfig(defaultConnectionConfig);
}
public SocketConfig getSocketConfig(final HttpHost host) {
return this.configData.getSocketConfig(host);
}
public void setSocketConfig(final HttpHost host, final SocketConfig socketConfig) {
this.configData.setSocketConfig(host, socketConfig);
}
public ConnectionConfig getConnectionConfig(final HttpHost host) {
return this.configData.getConnectionConfig(host);
}
public void setConnectionConfig(final HttpHost host, final ConnectionConfig connectionConfig) {
this.configData.setConnectionConfig(host, connectionConfig);
}
static class ConfigData {
private final Map socketConfigMap;
private final Map connectionConfigMap;
private volatile SocketConfig defaultSocketConfig;
private volatile ConnectionConfig defaultConnectionConfig;
ConfigData() {
super();
this.socketConfigMap = new ConcurrentHashMap();
this.connectionConfigMap = new ConcurrentHashMap();
}
public SocketConfig getDefaultSocketConfig() {
return this.defaultSocketConfig;
}
public void setDefaultSocketConfig(final SocketConfig defaultSocketConfig) {
this.defaultSocketConfig = defaultSocketConfig;
}
public ConnectionConfig getDefaultConnectionConfig() {
return this.defaultConnectionConfig;
}
public void setDefaultConnectionConfig(final ConnectionConfig defaultConnectionConfig) {
this.defaultConnectionConfig = defaultConnectionConfig;
}
public SocketConfig getSocketConfig(final HttpHost host) {
return this.socketConfigMap.get(host);
}
public void setSocketConfig(final HttpHost host, final SocketConfig socketConfig) {
this.socketConfigMap.put(host, socketConfig);
}
public ConnectionConfig getConnectionConfig(final HttpHost host) {
return this.connectionConfigMap.get(host);
}
public void setConnectionConfig(final HttpHost host, final ConnectionConfig connectionConfig) {
this.connectionConfigMap.put(host, connectionConfig);
}
}
static class InternalConnectionFactory implements ConnFactory {
private final ConfigData configData;
private final HttpConnectionFactory connFactory;
InternalConnectionFactory(
final ConfigData configData,
final HttpConnectionFactory connFactory) {
super();
this.configData = configData != null ? configData : new ConfigData();
this.connFactory = connFactory != null ? connFactory :
ManagedHttpClientConnectionFactory.INSTANCE;
}
public ManagedHttpClientConnection create(final HttpRoute route) throws IOException {
ConnectionConfig config = null;
if (route.getProxyHost() != null) {
config = this.configData.getConnectionConfig(route.getProxyHost());
}
if (config == null) {
config = this.configData.getConnectionConfig(route.getTargetHost());
}
if (config == null) {
config = this.configData.getDefaultConnectionConfig();
}
if (config == null) {
config = ConnectionConfig.DEFAULT;
}
return this.connFactory.create(route, config);
}
}
}