Java tutorial
/* * ==================================================================== * 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.http.conn; import java.io.IOException; import java.net.InetAddress; import org.apache.http.HttpHost; import org.apache.http.params.HttpParams; import org.apache.http.protocol.HttpContext; /** * ClientConnectionOperator represents a strategy for creating * {@link OperatedClientConnection} instances and updating the underlying * {@link java.net.Socket} of those objects. Implementations will most * likely make use of {@link org.apache.http.conn.scheme.SchemeSocketFactory}s * to create {@link java.net.Socket} instances. * <p> * The methods in this interface allow the creation of plain and layered * sockets. Creating a tunnelled connection through a proxy, however, * is not within the scope of the operator. * <p> * Implementations of this interface must be thread-safe. Access to shared * data must be synchronized as methods of this interface may be executed * from multiple threads. * * @since 4.0 * * @deprecated (4.3) replaced by {@link HttpClientConnectionManager}. */ @Deprecated public interface ClientConnectionOperator { /** * Creates a new connection that can be operated. * * @return a new, unopened connection for use with this operator */ OperatedClientConnection createConnection(); /** * Opens a connection to the given target host. * * @param conn the connection to open * @param target the target host to connect to * @param local the local address to route from, or * <code>null</code> for the default * @param context the context for the connection * @param params the parameters for the connection * * @throws IOException in case of a problem */ void openConnection(OperatedClientConnection conn, HttpHost target, InetAddress local, HttpContext context, HttpParams params) throws IOException; /** * Updates a connection with a layered secure connection. * The typical use of this method is to update a tunnelled plain * connection (HTTP) to a secure TLS/SSL connection (HTTPS). * * @param conn the open connection to update * @param target the target host for the updated connection. * The connection must already be open or tunnelled * to the host and port, but the scheme of the target * will be used to create a layered connection. * @param context the context for the connection * @param params the parameters for the updated connection * * @throws IOException in case of a problem */ void updateSecureConnection(OperatedClientConnection conn, HttpHost target, HttpContext context, HttpParams params) throws IOException; }