org.apache.http.impl.conn.DefaultHttpClientConnectionOperator 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
* socketFactoryRegistry;
private final SchemePortResolver schemePortResolver;
private final DnsResolver dnsResolver;
public DefaultHttpClientConnectionOperator(
final Lookup socketFactoryRegistry,
final SchemePortResolver schemePortResolver,
final DnsResolver dnsResolver) {
super();
Args.notNull(socketFactoryRegistry, "Socket factory registry");
this.socketFactoryRegistry = socketFactoryRegistry;
this.schemePortResolver = schemePortResolver != null ? schemePortResolver :
DefaultSchemePortResolver.INSTANCE;
this.dnsResolver = dnsResolver != null ? dnsResolver :
SystemDefaultDnsResolver.INSTANCE;
}
@SuppressWarnings("unchecked")
private Lookup getSocketFactoryRegistry(final HttpContext context) {
Lookup reg = (Lookup) context.getAttribute(
SOCKET_FACTORY_REGISTRY);
if (reg == null) {
reg = this.socketFactoryRegistry;
}
return reg;
}
@Override
public void connect(
final ManagedHttpClientConnection conn,
final HttpHost host,
final InetSocketAddress localAddress,
final int connectTimeout,
final SocketConfig socketConfig,
final HttpContext context) throws IOException {
final Lookup registry = getSocketFactoryRegistry(context);
final ConnectionSocketFactory sf = registry.lookup(host.getSchemeName());
if (sf == null) {
throw new UnsupportedSchemeException(host.getSchemeName() +
" protocol is not supported");
}
final InetAddress[] addresses = host.getAddress() != null ?
new InetAddress[] { host.getAddress() } : this.dnsResolver.resolve(host.getHostName());
final int port = this.schemePortResolver.resolve(host);
for (int i = 0; i < addresses.length; i++) {
final InetAddress address = addresses[i];
final boolean last = i == addresses.length - 1;
Socket sock = sf.createSocket(context);
sock.setSoTimeout(socketConfig.getSoTimeout());
sock.setReuseAddress(socketConfig.isSoReuseAddress());
sock.setTcpNoDelay(socketConfig.isTcpNoDelay());
sock.setKeepAlive(socketConfig.isSoKeepAlive());
if (socketConfig.getRcvBufSize() > 0) {
sock.setReceiveBufferSize(socketConfig.getRcvBufSize());
}
if (socketConfig.getSndBufSize() > 0) {
sock.setSendBufferSize(socketConfig.getSndBufSize());
}
final int linger = socketConfig.getSoLinger();
if (linger >= 0) {
sock.setSoLinger(true, linger);
}
conn.bind(sock);
final InetSocketAddress remoteAddress = new InetSocketAddress(address, port);
if (this.log.isDebugEnabled()) {
this.log.debug("Connecting to " + remoteAddress);
}
try {
sock = sf.connectSocket(
connectTimeout, sock, host, remoteAddress, localAddress, context);
conn.bind(sock);
if (this.log.isDebugEnabled()) {
this.log.debug("Connection established " + conn);
}
return;
} catch (final SocketTimeoutException ex) {
if (last) {
throw new ConnectTimeoutException(ex, host, addresses);
}
} catch (final ConnectException ex) {
if (last) {
final String msg = ex.getMessage();
throw "Connection timed out".equals(msg)
? new ConnectTimeoutException(ex, host, addresses)
: new HttpHostConnectException(ex, host, addresses);
}
} catch (final NoRouteToHostException ex) {
if (last) {
throw ex;
}
}
if (this.log.isDebugEnabled()) {
this.log.debug("Connect to " + remoteAddress + " timed out. " +
"Connection will be retried using another IP address");
}
}
}
@Override
public void upgrade(
final ManagedHttpClientConnection conn,
final HttpHost host,
final HttpContext context) throws IOException {
final HttpClientContext clientContext = HttpClientContext.adapt(context);
final Lookup registry = getSocketFactoryRegistry(clientContext);
final ConnectionSocketFactory sf = registry.lookup(host.getSchemeName());
if (sf == null) {
throw new UnsupportedSchemeException(host.getSchemeName() +
" protocol is not supported");
}
if (!(sf instanceof LayeredConnectionSocketFactory)) {
throw new UnsupportedSchemeException(host.getSchemeName() +
" protocol does not support connection upgrade");
}
final LayeredConnectionSocketFactory lsf = (LayeredConnectionSocketFactory) sf;
Socket sock = conn.getSocket();
final int port = this.schemePortResolver.resolve(host);
sock = lsf.createLayeredSocket(sock, host.getHostName(), port, context);
conn.bind(sock);
}
}