001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 * 019 */ 020package org.apache.mina.example.imagine.step1.codec; 021 022import org.apache.mina.core.buffer.IoBuffer; 023import org.apache.mina.core.session.IoSession; 024import org.apache.mina.example.imagine.step1.ImageRequest; 025import org.apache.mina.filter.codec.ProtocolEncoder; 026import org.apache.mina.filter.codec.ProtocolEncoderOutput; 027 028/** 029 * an encoder for {@link ImageRequest} objects 030 * 031 * @author <a href="http://mina.apache.org">Apache MINA Project</a> 032 */ 033 034public class ImageRequestEncoder implements ProtocolEncoder { 035 036 public void encode(IoSession session, Object message, ProtocolEncoderOutput out) throws Exception { 037 ImageRequest request = (ImageRequest) message; 038 IoBuffer buffer = IoBuffer.allocate(12, false); 039 buffer.putInt(request.getWidth()); 040 buffer.putInt(request.getHeight()); 041 buffer.putInt(request.getNumberOfCharacters()); 042 buffer.flip(); 043 out.write(buffer); 044 } 045 046 public void dispose(IoSession session) throws Exception { 047 // nothing to dispose 048 } 049}