001    /**
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package org.apache.camel.component.mina;
018    
019    import java.io.IOException;
020    import java.io.InputStream;
021    import java.io.ObjectInput;
022    import java.io.ObjectInputStream;
023    
024    import org.apache.camel.Converter;
025    import org.apache.camel.Exchange;
026    import org.apache.mina.common.ByteBuffer;
027    
028    /**
029     * A set of converter methods for working with MINA types
030     *
031     * @version $Revision: 19494 $
032     */
033    @Converter
034    public final class MinaConverter {
035    
036        private MinaConverter() {
037            //Utility Class
038        }
039    
040        @Converter
041        public static byte[] toByteArray(ByteBuffer buffer) {
042            buffer.mark();
043            try {
044                byte[] answer = new byte[buffer.remaining()];
045                buffer.get(answer);
046                return answer;
047            } finally {
048                buffer.reset();
049            }
050        }
051    
052        @Converter
053        public static String toString(ByteBuffer buffer, Exchange exchange) {
054            byte[] bytes = toByteArray(buffer);
055            // use type converter as it can handle encoding set on the Exchange
056            return exchange.getContext().getTypeConverter().convertTo(String.class, exchange, bytes);
057        }
058    
059        @Converter
060        public static InputStream toInputStream(ByteBuffer buffer) {
061            return buffer.asInputStream();
062        }
063    
064        @Converter
065        public static ObjectInput toObjectInput(ByteBuffer buffer) throws IOException {
066            InputStream is = toInputStream(buffer);
067            return new ObjectInputStream(is);
068        }
069    
070        @Converter
071        public static ByteBuffer toByteBuffer(byte[] bytes) {
072            ByteBuffer buf = ByteBuffer.allocate(bytes.length);
073            buf.put(bytes);
074            return buf;
075        }
076    }