| /* |
| * 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.handler.multiton; |
| |
| import org.apache.mina.core.service.IoHandler; |
| import org.apache.mina.core.session.AttributeKey; |
| import org.apache.mina.core.session.IdleStatus; |
| import org.apache.mina.core.session.IoSession; |
| import org.apache.mina.filter.FilterEvent; |
| |
| /** |
| * An {@link IoHandler} implementation which delegates all requests to |
| * {@link SingleSessionIoHandler}s. A {@link SingleSessionIoHandlerFactory} |
| * is used to create a new {@link SingleSessionIoHandler} for each newly |
| * created session. |
| * |
| * WARNING : This {@link IoHandler} implementation may be easier to understand and |
| * thus to use but the user should be aware that creating one handler by session |
| * will lower scalability if building an high performance server. This should only |
| * be used with very specific needs in mind. |
| * |
| * @deprecated This class is deprecated |
| * |
| * @author <a href="http://mina.apache.org">Apache MINA Project</a> |
| */ |
| @Deprecated |
| public class SingleSessionIoHandlerDelegate implements IoHandler { |
| /** |
| * The key used to store the {@link SingleSessionIoHandler} as a session |
| * attribute. |
| */ |
| public static final AttributeKey HANDLER = new AttributeKey(SingleSessionIoHandlerDelegate.class, "handler"); |
| |
| /** |
| * The {@link SingleSessionIoHandlerFactory} used to create new |
| * {@link SingleSessionIoHandler}s. |
| */ |
| private final SingleSessionIoHandlerFactory factory; |
| |
| /** |
| * Creates a new instance that uses the passed in |
| * {@link SingleSessionIoHandlerFactory} to create new |
| * {@link SingleSessionIoHandler}s. |
| * |
| * @param factory the factory for {@link SingleSessionIoHandler}s |
| */ |
| public SingleSessionIoHandlerDelegate(SingleSessionIoHandlerFactory factory) { |
| if (factory == null) { |
| throw new IllegalArgumentException("factory"); |
| } |
| this.factory = factory; |
| } |
| |
| /** |
| * @return the {@link SingleSessionIoHandlerFactory} that is used to create a new |
| * {@link SingleSessionIoHandler} instance. |
| */ |
| public SingleSessionIoHandlerFactory getFactory() { |
| return factory; |
| } |
| |
| /** |
| * Creates a new instance with the factory passed to the constructor of |
| * this class. The created handler is stored as a session |
| * attribute named {@link #HANDLER}. |
| * |
| * @see org.apache.mina.core.service.IoHandler#sessionCreated(org.apache.mina.core.session.IoSession) |
| */ |
| @Override |
| public void sessionCreated(IoSession session) throws Exception { |
| SingleSessionIoHandler handler = factory.getHandler(session); |
| session.setAttribute(HANDLER, handler); |
| handler.sessionCreated(); |
| } |
| |
| /** |
| * Delegates the method call to the |
| * {@link SingleSessionIoHandler#sessionOpened()} method of the handler |
| * assigned to this session. |
| * |
| * {@inheritDoc} |
| */ |
| @Override |
| public void sessionOpened(IoSession session) throws Exception { |
| SingleSessionIoHandler handler = (SingleSessionIoHandler) session.getAttribute(HANDLER); |
| handler.sessionOpened(); |
| } |
| |
| /** |
| * Delegates the method call to the |
| * {@link SingleSessionIoHandler#sessionClosed()} method of the handler |
| * assigned to this session. |
| * |
| * {@inheritDoc} |
| */ |
| @Override |
| public void sessionClosed(IoSession session) throws Exception { |
| SingleSessionIoHandler handler = (SingleSessionIoHandler) session.getAttribute(HANDLER); |
| handler.sessionClosed(); |
| } |
| |
| /** |
| * Delegates the method call to the |
| * {@link SingleSessionIoHandler#sessionIdle(IdleStatus)} method of the |
| * handler assigned to this session. |
| * |
| * {@inheritDoc} |
| */ |
| @Override |
| public void sessionIdle(IoSession session, IdleStatus status) throws Exception { |
| SingleSessionIoHandler handler = (SingleSessionIoHandler) session.getAttribute(HANDLER); |
| handler.sessionIdle(status); |
| } |
| |
| /** |
| * Delegates the method call to the |
| * {@link SingleSessionIoHandler#exceptionCaught(Throwable)} method of the |
| * handler assigned to this session. |
| * |
| * {@inheritDoc} |
| */ |
| @Override |
| public void exceptionCaught(IoSession session, Throwable cause) throws Exception { |
| SingleSessionIoHandler handler = (SingleSessionIoHandler) session.getAttribute(HANDLER); |
| handler.exceptionCaught(cause); |
| } |
| |
| /** |
| * Delegates the method call to the |
| * {@link SingleSessionIoHandler#messageReceived(Object)} method of the |
| * handler assigned to this session. |
| * |
| * {@inheritDoc} |
| */ |
| @Override |
| public void messageReceived(IoSession session, Object message) throws Exception { |
| SingleSessionIoHandler handler = (SingleSessionIoHandler) session.getAttribute(HANDLER); |
| handler.messageReceived(message); |
| } |
| |
| /** |
| * Delegates the method call to the |
| * {@link SingleSessionIoHandler#messageSent(Object)} method of the handler |
| * assigned to this session. |
| * |
| * {@inheritDoc} |
| */ |
| @Override |
| public void messageSent(IoSession session, Object message) throws Exception { |
| SingleSessionIoHandler handler = (SingleSessionIoHandler) session.getAttribute(HANDLER); |
| handler.messageSent(message); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void inputClosed(IoSession session) throws Exception { |
| SingleSessionIoHandler handler = (SingleSessionIoHandler) session.getAttribute(HANDLER); |
| handler.inputClosed(session); |
| } |
| |
| /** |
| * Delegates the method call to the |
| * {@link SingleSessionIoHandler#event(FilterEvent)} method of the handler |
| * assigned to this session. |
| * |
| * {@inheritDoc} |
| */ |
| @Override |
| public void event(IoSession session, FilterEvent event) throws Exception { |
| SingleSessionIoHandler handler = (SingleSessionIoHandler) session.getAttribute(HANDLER); |
| handler.event(event); |
| } |
| } |