/*
* ====================================================================
* 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.ogt.http.conn;
import java.io.IOException;
import java.net.InetAddress;
import java.net.Socket;
import org.apache.ogt.http.HttpHost;
import org.apache.ogt.http.conn.scheme.SchemeSocketFactory;
import org.apache.ogt.http.params.HttpParams;
import org.apache.ogt.http.protocol.HttpContext;
/**
* ClientConnectionOperator represents a strategy for creating
* {@link OperatedClientConnection} instances and updating the underlying
* {@link Socket} of those objects. Implementations will most likely make use
* of {@link SchemeSocketFactory}s to create {@link 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
*/
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;
}