| /* |
| * ==================================================================== |
| * 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 |
| * <http://www.apache.org/>. |
| * |
| */ |
| package org.apache.hc.client5.http.impl.io; |
| |
| import java.io.IOException; |
| import java.net.InetAddress; |
| import java.net.InetSocketAddress; |
| import java.net.Socket; |
| import java.util.Arrays; |
| |
| import org.apache.hc.client5.http.ConnectExceptionSupport; |
| import org.apache.hc.client5.http.DnsResolver; |
| import org.apache.hc.client5.http.SchemePortResolver; |
| import org.apache.hc.client5.http.SystemDefaultDnsResolver; |
| import org.apache.hc.client5.http.UnsupportedSchemeException; |
| import org.apache.hc.client5.http.impl.ConnPoolSupport; |
| import org.apache.hc.client5.http.impl.DefaultSchemePortResolver; |
| import org.apache.hc.client5.http.io.HttpClientConnectionOperator; |
| import org.apache.hc.client5.http.io.ManagedHttpClientConnection; |
| import org.apache.hc.client5.http.protocol.HttpClientContext; |
| import org.apache.hc.client5.http.socket.ConnectionSocketFactory; |
| import org.apache.hc.client5.http.socket.LayeredConnectionSocketFactory; |
| import org.apache.hc.core5.annotation.Contract; |
| import org.apache.hc.core5.annotation.Internal; |
| import org.apache.hc.core5.annotation.ThreadingBehavior; |
| import org.apache.hc.core5.http.ConnectionClosedException; |
| import org.apache.hc.core5.http.HttpHost; |
| import org.apache.hc.core5.http.config.Lookup; |
| import org.apache.hc.core5.http.io.SocketConfig; |
| import org.apache.hc.core5.http.protocol.HttpContext; |
| import org.apache.hc.core5.util.Args; |
| import org.apache.hc.core5.util.TimeValue; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Default implementation of {@link HttpClientConnectionOperator} used as default in Http client, |
| * when no instance provided by user to {@link BasicHttpClientConnectionManager} or {@link |
| * PoolingHttpClientConnectionManager} constructor. |
| * |
| * @since 4.4 |
| */ |
| @Internal |
| @Contract(threading = ThreadingBehavior.STATELESS) |
| public class DefaultHttpClientConnectionOperator implements HttpClientConnectionOperator { |
| |
| static final String SOCKET_FACTORY_REGISTRY = "http.socket-factory-registry"; |
| |
| private static final Logger LOG = LoggerFactory.getLogger(DefaultHttpClientConnectionOperator.class); |
| |
| private final Lookup<ConnectionSocketFactory> socketFactoryRegistry; |
| private final SchemePortResolver schemePortResolver; |
| private final DnsResolver dnsResolver; |
| |
| public DefaultHttpClientConnectionOperator( |
| final Lookup<ConnectionSocketFactory> 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<ConnectionSocketFactory> getSocketFactoryRegistry(final HttpContext context) { |
| Lookup<ConnectionSocketFactory> reg = (Lookup<ConnectionSocketFactory>) 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 TimeValue connectTimeout, |
| final SocketConfig socketConfig, |
| final HttpContext context) throws IOException { |
| Args.notNull(conn, "Connection"); |
| Args.notNull(host, "Host"); |
| Args.notNull(socketConfig, "Socket config"); |
| Args.notNull(context, "Context"); |
| final Lookup<ConnectionSocketFactory> registry = getSocketFactoryRegistry(context); |
| final ConnectionSocketFactory sf = registry.lookup(host.getSchemeName()); |
| if (sf == null) { |
| throw new UnsupportedSchemeException(host.getSchemeName() + " protocol is not supported"); |
| } |
| final InetAddress[] remoteAddresses; |
| if (host.getAddress() != null) { |
| remoteAddresses = new InetAddress[] { host.getAddress() }; |
| } else { |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("{} resolving remote address", host.getHostName()); |
| } |
| |
| remoteAddresses = this.dnsResolver.resolve(host.getHostName()); |
| |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("{} resolved to {}", host.getHostName(), Arrays.asList(remoteAddresses)); |
| } |
| } |
| |
| final int port = this.schemePortResolver.resolve(host); |
| for (int i = 0; i < remoteAddresses.length; i++) { |
| final InetAddress address = remoteAddresses[i]; |
| final boolean last = i == remoteAddresses.length - 1; |
| |
| Socket sock = sf.createSocket(context); |
| sock.setSoTimeout(socketConfig.getSoTimeout().toMillisecondsIntBound()); |
| 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().toMillisecondsIntBound(); |
| if (linger >= 0) { |
| sock.setSoLinger(true, linger); |
| } |
| conn.bind(sock); |
| |
| final InetSocketAddress remoteAddress = new InetSocketAddress(address, port); |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("{}:{} connecting {}->{} ({})", |
| host.getHostName(), host.getPort(), localAddress, remoteAddress, connectTimeout); |
| } |
| try { |
| sock = sf.connectSocket(connectTimeout, sock, host, remoteAddress, localAddress, context); |
| conn.bind(sock); |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("{}:{} connected {}->{} as {}", |
| host.getHostName(), host.getPort(), localAddress, remoteAddress, ConnPoolSupport.getId(conn)); |
| } |
| return; |
| } catch (final IOException ex) { |
| if (last) { |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("{}:{} connection to {} failed ({}); terminating operation", |
| host.getHostName(), host.getPort(), remoteAddress, ex.getClass()); |
| } |
| throw ConnectExceptionSupport.enhance(ex, host, remoteAddresses); |
| } else { |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("{}:{} connection to {} failed ({}); retrying connection to the next address", |
| host.getHostName(), host.getPort(), remoteAddress, ex.getClass()); |
| } |
| } |
| } |
| } |
| } |
| |
| @Override |
| public void upgrade( |
| final ManagedHttpClientConnection conn, |
| final HttpHost host, |
| final HttpContext context) throws IOException { |
| final HttpClientContext clientContext = HttpClientContext.adapt(context); |
| final Lookup<ConnectionSocketFactory> 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(); |
| if (sock == null) { |
| throw new ConnectionClosedException("Connection is closed"); |
| } |
| final int port = this.schemePortResolver.resolve(host); |
| sock = lsf.createLayeredSocket(sock, host.getHostName(), port, context); |
| conn.bind(sock); |
| } |
| |
| } |