Subversion Repositories SmartDukaan

/**
 * 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.IO;

namespace Thrift.Transport
{
        public class TBufferedTransport : TTransport
        {
                private BufferedStream inputBuffer;
                private BufferedStream outputBuffer;
                private int bufSize;
                private TStreamTransport transport;

                public TBufferedTransport(TStreamTransport transport)
                        :this(transport, 1024)
                {

                }

                public TBufferedTransport(TStreamTransport transport, int bufSize)
                {
                        this.bufSize = bufSize;
                        this.transport = transport;
                        InitBuffers();
                }

                private void InitBuffers()
                {
                        if (transport.InputStream != null)
                        {
                                inputBuffer = new BufferedStream(transport.InputStream, bufSize);
                        }
                        if (transport.OutputStream != null)
                        {
                                outputBuffer = new BufferedStream(transport.OutputStream, bufSize);
                        }
                }

                public TTransport UnderlyingTransport
                {
                        get { return transport; }
                }

                public override bool IsOpen
                {
                        get { return transport.IsOpen; }
                }

                public override void Open()
                {
                        transport.Open();
                        InitBuffers();
                }

                public override void Close()
                {
                        if (inputBuffer != null && inputBuffer.CanRead)
                        {
                                inputBuffer.Close();
                        }
                        if (outputBuffer != null && outputBuffer.CanWrite)
                        {
                                outputBuffer.Close();
                        }
                }

                public override int Read(byte[] buf, int off, int len)
                {
                        return inputBuffer.Read(buf, off, len);
                }

                public override void Write(byte[] buf, int off, int len)
                {
                        outputBuffer.Write(buf, off, len);
                }

                public override void Flush()
                {
                        outputBuffer.Flush();
                }
        }
}