/*
 *
 * 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.
 *
 */
using System;
using System.Collections;
using Qpid.Framing;

namespace Qpid.Client.Message
{
    public class QpidTextMessageFactory : AbstractQmsMessageFactory
    {
        protected override AbstractQmsMessage CreateMessageWithBody(ulong messageNbr, ContentHeaderBody contentHeader,
                                                                    IList bodies)
        {
            byte[] data;

            // we optimise the non-fragmented case to avoid copying
            if (bodies != null && bodies.Count == 1)
            {
                data = ((ContentBody)bodies[0]).Payload;
            }
            else
            {
                data = new byte[(int)contentHeader.BodySize];
                int currentPosition = 0;
                foreach (ContentBody cb in bodies)
                {                
                    Array.Copy(cb.Payload, 0, data, currentPosition, cb.Payload.Length);
                    currentPosition += cb.Payload.Length;
                }
            }

            return new QpidTextMessage(messageNbr, data, (BasicContentHeaderProperties)contentHeader.Properties);
        }
        
     
        public override AbstractQmsMessage CreateMessage()
        {
            return new QpidTextMessage();
        }      
    }
}