/*
* 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.
*
*/
package org.apache.mina.example.chat.client;
import java.net.SocketAddress;
import javax.net.ssl.SSLContext;
import org.apache.mina.core.filterchain.IoFilter;
import org.apache.mina.core.future.ConnectFuture;
import org.apache.mina.core.service.IoHandler;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.example.echoserver.ssl.BogusSslContextFactory;
import org.apache.mina.filter.ssl.SslFilter;
import org.apache.mina.filter.codec.ProtocolCodecFilter;
import org.apache.mina.filter.codec.textline.TextLineCodecFactory;
import org.apache.mina.filter.logging.LoggingFilter;
import org.apache.mina.filter.logging.MdcInjectionFilter;
import org.apache.mina.transport.socket.nio.NioSocketConnector;
/**
* A simple chat client for a given user.
*
* @author The Apache MINA Project (dev@mina.apache.org)
* @version $Rev$, $Date$
*/
public class ChatClientSupport {
private final IoHandler handler;
private final String name;
private IoSession session;
public ChatClientSupport(String name, IoHandler handler) {
if (name == null) {
throw new IllegalArgumentException("Name can not be null");
}
this.name = name;
this.handler = handler;
}
public boolean connect(NioSocketConnector connector, SocketAddress address,
boolean useSsl) {
if (session != null && session.isConnected()) {
throw new IllegalStateException(
"Already connected. Disconnect first.");
}
try {
IoFilter LOGGING_FILTER = new LoggingFilter();
IoFilter CODEC_FILTER = new ProtocolCodecFilter(
new TextLineCodecFactory());
connector.getFilterChain().addLast("mdc", new MdcInjectionFilter());
connector.getFilterChain().addLast("codec", CODEC_FILTER);
connector.getFilterChain().addLast("logger", LOGGING_FILTER);
if (useSsl) {
SSLContext sslContext = BogusSslContextFactory
.getInstance(false);
SslFilter sslFilter = new SslFilter(sslContext);
sslFilter.setUseClientMode(true);
connector.getFilterChain().addLast("sslFilter", sslFilter);
}
connector.setHandler(handler);
ConnectFuture future1 = connector.connect(address);
future1.awaitUninterruptibly();
if (!future1.isConnected()) {
return false;
}
session = future1.getSession();
login();
return true;
} catch (Exception e) {
return false;
}
}
public void login() {
session.write("LOGIN " + name);
}
public void broadcast(String message) {
session.write("BROADCAST " + message);
}
public void quit() {
if (session != null) {
if (session.isConnected()) {
session.write("QUIT");
// Wait until the chat ends.
session.getCloseFuture().awaitUninterruptibly();
}
session.close(true);
}
}
}