/*
 * 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.
 */

#include "qmf/engine/Protocol.h"
#include "qpid/framing/Buffer.h"

using namespace std;
using namespace qmf::engine;
using namespace qpid::framing;


bool Protocol::checkHeader(Buffer& buf, uint8_t *opcode, uint32_t *seq)
{
    if (buf.available() < 8)
        return false;

    uint8_t h1 = buf.getOctet();
    uint8_t h2 = buf.getOctet();
    uint8_t h3 = buf.getOctet();

    *opcode = buf.getOctet();
    *seq    = buf.getLong();

    return h1 == 'A' && h2 == 'M' && h3 == '2';
}

void Protocol::encodeHeader(qpid::framing::Buffer& buf, uint8_t opcode, uint32_t seq)
{
    buf.putOctet('A');
    buf.putOctet('M');
    buf.putOctet('2');
    buf.putOctet(opcode);
    buf.putLong (seq);
}