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 */
017package org.apache.activemq.transport.amqp.message;
018
019import org.apache.qpid.proton.amqp.Binary;
020import org.apache.qpid.proton.message.Message;
021
022public class EncodedMessage {
023
024    private final Binary data;
025    private final long messageFormat;
026
027    public EncodedMessage(long messageFormat, byte[] data, int offset, int length) {
028        this.data = new Binary(data, offset, length);
029        this.messageFormat = messageFormat;
030    }
031
032    public long getMessageFormat() {
033        return messageFormat;
034    }
035
036    public Message decode() throws Exception {
037        Message amqp = Message.Factory.create();
038
039        int offset = getArrayOffset();
040        int len = getLength();
041        while (len > 0) {
042            final int decoded = amqp.decode(getArray(), offset, len);
043            assert decoded > 0 : "Make progress decoding the message";
044            offset += decoded;
045            len -= decoded;
046        }
047
048        return amqp;
049    }
050
051    public int getLength() {
052        return data.getLength();
053    }
054
055    public int getArrayOffset() {
056        return data.getArrayOffset();
057    }
058
059    public byte[] getArray() {
060        return data.getArray();
061    }
062
063    @Override
064    public String toString() {
065        return data.toString();
066    }
067}