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Diffstat (limited to 'mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/conn/DefaultClientConnectionOperator.java')
| -rw-r--r-- | mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/conn/DefaultClientConnectionOperator.java | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/conn/DefaultClientConnectionOperator.java b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/conn/DefaultClientConnectionOperator.java new file mode 100644 index 000000000..3cdf706ec --- /dev/null +++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/impl/conn/DefaultClientConnectionOperator.java @@ -0,0 +1,263 @@ +/* + * ==================================================================== + * 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 ch.boye.httpclientandroidlib.impl.conn; + +import java.io.IOException; +import java.net.ConnectException; +import java.net.InetAddress; +import java.net.InetSocketAddress; +import java.net.Socket; +import java.net.UnknownHostException; + +import ch.boye.httpclientandroidlib.androidextra.HttpClientAndroidLog; +/* LogFactory removed by HttpClient for Android script. */ +import ch.boye.httpclientandroidlib.HttpHost; +import ch.boye.httpclientandroidlib.annotation.ThreadSafe; +import ch.boye.httpclientandroidlib.client.protocol.ClientContext; +import ch.boye.httpclientandroidlib.conn.ClientConnectionOperator; +import ch.boye.httpclientandroidlib.conn.ConnectTimeoutException; +import ch.boye.httpclientandroidlib.conn.DnsResolver; +import ch.boye.httpclientandroidlib.conn.HttpInetSocketAddress; +import ch.boye.httpclientandroidlib.conn.OperatedClientConnection; +import ch.boye.httpclientandroidlib.conn.scheme.Scheme; +import ch.boye.httpclientandroidlib.conn.scheme.SchemeLayeredSocketFactory; +import ch.boye.httpclientandroidlib.conn.scheme.SchemeRegistry; +import ch.boye.httpclientandroidlib.conn.scheme.SchemeSocketFactory; +import ch.boye.httpclientandroidlib.params.HttpConnectionParams; +import ch.boye.httpclientandroidlib.params.HttpParams; +import ch.boye.httpclientandroidlib.protocol.HttpContext; +import ch.boye.httpclientandroidlib.util.Args; +import ch.boye.httpclientandroidlib.util.Asserts; + +/** + * Default implementation of a {@link ClientConnectionOperator}. It uses a {@link SchemeRegistry} + * to look up {@link SchemeSocketFactory} objects. + * <p> + * This connection operator is multihome network aware and will attempt to retry failed connects + * against all known IP addresses sequentially until the connect is successful or all known + * addresses fail to respond. Please note the same + * {@link ch.boye.httpclientandroidlib.params.CoreConnectionPNames#CONNECTION_TIMEOUT} value will be used + * for each connection attempt, so in the worst case the total elapsed time before timeout + * can be <code>CONNECTION_TIMEOUT * n</code> where <code>n</code> is the number of IP addresses + * of the given host. One can disable multihome support by overriding + * the {@link #resolveHostname(String)} method and returning only one IP address for the given + * host name. + * <p> + * The following parameters can be used to customize the behavior of this + * class: + * <ul> + * <li>{@link ch.boye.httpclientandroidlib.params.CoreProtocolPNames#HTTP_ELEMENT_CHARSET}</li> + * <li>{@link ch.boye.httpclientandroidlib.params.CoreConnectionPNames#SO_TIMEOUT}</li> + * <li>{@link ch.boye.httpclientandroidlib.params.CoreConnectionPNames#SO_LINGER}</li> + * <li>{@link ch.boye.httpclientandroidlib.params.CoreConnectionPNames#SO_REUSEADDR}</li> + * <li>{@link ch.boye.httpclientandroidlib.params.CoreConnectionPNames#TCP_NODELAY}</li> + * <li>{@link ch.boye.httpclientandroidlib.params.CoreConnectionPNames#SOCKET_BUFFER_SIZE}</li> + * <li>{@link ch.boye.httpclientandroidlib.params.CoreConnectionPNames#CONNECTION_TIMEOUT}</li> + * <li>{@link ch.boye.httpclientandroidlib.params.CoreConnectionPNames#MAX_LINE_LENGTH}</li> + * </ul> + * + * @since 4.0 + * + * @deprecated (4.3) use {@link PoolingHttpClientConnectionManager}. + */ +@Deprecated +@ThreadSafe +public class DefaultClientConnectionOperator implements ClientConnectionOperator { + + public HttpClientAndroidLog log = new HttpClientAndroidLog(getClass()); + + /** The scheme registry for looking up socket factories. */ + protected final SchemeRegistry schemeRegistry; // @ThreadSafe + + /** the custom-configured DNS lookup mechanism. */ + protected final DnsResolver dnsResolver; + + /** + * Creates a new client connection operator for the given scheme registry. + * + * @param schemes the scheme registry + * + * @since 4.2 + */ + public DefaultClientConnectionOperator(final SchemeRegistry schemes) { + Args.notNull(schemes, "Scheme registry"); + this.schemeRegistry = schemes; + this.dnsResolver = new SystemDefaultDnsResolver(); + } + + /** + * Creates a new client connection operator for the given scheme registry + * and the given custom DNS lookup mechanism. + * + * @param schemes + * the scheme registry + * @param dnsResolver + * the custom DNS lookup mechanism + */ + public DefaultClientConnectionOperator(final SchemeRegistry schemes,final DnsResolver dnsResolver) { + Args.notNull(schemes, "Scheme registry"); + + Args.notNull(dnsResolver, "DNS resolver"); + + this.schemeRegistry = schemes; + this.dnsResolver = dnsResolver; + } + + public OperatedClientConnection createConnection() { + return new DefaultClientConnection(); + } + + private SchemeRegistry getSchemeRegistry(final HttpContext context) { + SchemeRegistry reg = (SchemeRegistry) context.getAttribute( + ClientContext.SCHEME_REGISTRY); + if (reg == null) { + reg = this.schemeRegistry; + } + return reg; + } + + public void openConnection( + final OperatedClientConnection conn, + final HttpHost target, + final InetAddress local, + final HttpContext context, + final HttpParams params) throws IOException { + Args.notNull(conn, "Connection"); + Args.notNull(target, "Target host"); + Args.notNull(params, "HTTP parameters"); + Asserts.check(!conn.isOpen(), "Connection must not be open"); + + final SchemeRegistry registry = getSchemeRegistry(context); + final Scheme schm = registry.getScheme(target.getSchemeName()); + final SchemeSocketFactory sf = schm.getSchemeSocketFactory(); + + final InetAddress[] addresses = resolveHostname(target.getHostName()); + final int port = schm.resolvePort(target.getPort()); + for (int i = 0; i < addresses.length; i++) { + final InetAddress address = addresses[i]; + final boolean last = i == addresses.length - 1; + + Socket sock = sf.createSocket(params); + conn.opening(sock, target); + + final InetSocketAddress remoteAddress = new HttpInetSocketAddress(target, address, port); + InetSocketAddress localAddress = null; + if (local != null) { + localAddress = new InetSocketAddress(local, 0); + } + if (this.log.isDebugEnabled()) { + this.log.debug("Connecting to " + remoteAddress); + } + try { + final Socket connsock = sf.connectSocket(sock, remoteAddress, localAddress, params); + if (sock != connsock) { + sock = connsock; + conn.opening(sock, target); + } + prepareSocket(sock, context, params); + conn.openCompleted(sf.isSecure(sock), params); + return; + } catch (final ConnectException ex) { + if (last) { + throw ex; + } + } catch (final ConnectTimeoutException 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"); + } + } + } + + public void updateSecureConnection( + final OperatedClientConnection conn, + final HttpHost target, + final HttpContext context, + final HttpParams params) throws IOException { + Args.notNull(conn, "Connection"); + Args.notNull(target, "Target host"); + Args.notNull(params, "Parameters"); + Asserts.check(conn.isOpen(), "Connection must be open"); + + final SchemeRegistry registry = getSchemeRegistry(context); + final Scheme schm = registry.getScheme(target.getSchemeName()); + Asserts.check(schm.getSchemeSocketFactory() instanceof SchemeLayeredSocketFactory, + "Socket factory must implement SchemeLayeredSocketFactory"); + final SchemeLayeredSocketFactory lsf = (SchemeLayeredSocketFactory) schm.getSchemeSocketFactory(); + final Socket sock = lsf.createLayeredSocket( + conn.getSocket(), target.getHostName(), schm.resolvePort(target.getPort()), params); + prepareSocket(sock, context, params); + conn.update(sock, target, lsf.isSecure(sock), params); + } + + /** + * Performs standard initializations on a newly created socket. + * + * @param sock the socket to prepare + * @param context the context for the connection + * @param params the parameters from which to prepare the socket + * + * @throws IOException in case of an IO problem + */ + protected void prepareSocket( + final Socket sock, + final HttpContext context, + final HttpParams params) throws IOException { + sock.setTcpNoDelay(HttpConnectionParams.getTcpNoDelay(params)); + sock.setSoTimeout(HttpConnectionParams.getSoTimeout(params)); + + final int linger = HttpConnectionParams.getLinger(params); + if (linger >= 0) { + sock.setSoLinger(linger > 0, linger); + } + } + + /** + * Resolves the given host name to an array of corresponding IP addresses, based on the + * configured name service on the provided DNS resolver. If one wasn't provided, the system + * configuration is used. + * + * @param host host name to resolve + * @return array of IP addresses + * @exception UnknownHostException if no IP address for the host could be determined. + * + * @see DnsResolver + * @see SystemDefaultDnsResolver + * + * @since 4.1 + */ + protected InetAddress[] resolveHostname(final String host) throws UnknownHostException { + return dnsResolver.resolve(host); + } + +} + |