HaikuValidatorIoHandler.java

/*
 * 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.haiku;

import org.apache.mina.core.service.IoHandlerAdapter;
import org.apache.mina.core.session.IoSession;

/**
 * @author <a href="http://mina.apache.org">Apache MINA Project</a>
 */

public class HaikuValidatorIoHandler extends IoHandlerAdapter {

    private final HaikuValidator validator = new HaikuValidator();

    @Override
    public void messageReceived(IoSession session, Object message)
            throws Exception {
        Haiku haiku = (Haiku) message;

        try {
            validator.validate(haiku);
            session.write("HAIKU!");
        } catch (InvalidHaikuException e) {
            session.write("NOT A HAIKU: " + e.getMessage());
        }
    }
}