| /* |
| * 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.sshd.common.session.helpers; |
| |
| import org.apache.sshd.common.RuntimeSshException; |
| import org.apache.sshd.common.io.IoHandler; |
| import org.apache.sshd.common.io.IoSession; |
| import org.apache.sshd.common.util.Readable; |
| import org.apache.sshd.common.util.ValidateUtils; |
| import org.apache.sshd.common.util.logging.AbstractLoggingBean; |
| |
| /** |
| * TODO Add javadoc |
| * |
| * @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a> |
| */ |
| public abstract class AbstractSessionIoHandler extends AbstractLoggingBean implements IoHandler { |
| protected AbstractSessionIoHandler() { |
| super(); |
| } |
| |
| @Override |
| public void sessionCreated(IoSession ioSession) throws Exception { |
| ValidateUtils.checkNotNull(createSession(ioSession), "No session created for %s", ioSession); |
| } |
| |
| @Override |
| public void sessionClosed(IoSession ioSession) throws Exception { |
| AbstractSession session = AbstractSession.getSession(ioSession); |
| session.close(true); |
| } |
| |
| @Override |
| public void exceptionCaught(IoSession ioSession, Throwable cause) throws Exception { |
| AbstractSession session = AbstractSession.getSession(ioSession, true); |
| if (session != null) { |
| session.exceptionCaught(cause); |
| } else { |
| throw new MissingAttachedSessionException( |
| "No session available to signal caught exception=" + cause.getClass().getSimpleName(), cause); |
| } |
| } |
| |
| @Override |
| public void messageReceived(IoSession ioSession, Readable message) throws Exception { |
| AbstractSession session = AbstractSession.getSession(ioSession); |
| try { |
| session.messageReceived(message); |
| } catch (Error e) { |
| log.debug("messageReceived({}) failed {} to handle message: {}", |
| ioSession, e.getClass().getSimpleName(), e.getMessage(), e); |
| throw new RuntimeSshException(e); |
| } |
| } |
| |
| protected abstract AbstractSession createSession(IoSession ioSession) throws Exception; |
| } |