Thrift now a TLP - INFRA-3116

git-svn-id: https://svn.apache.org/repos/asf/thrift/branches/0.1.x@1028168 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/lib/csharp/src/Transport/TBufferedTransport.cs b/lib/csharp/src/Transport/TBufferedTransport.cs
new file mode 100644
index 0000000..28a855a
--- /dev/null
+++ b/lib/csharp/src/Transport/TBufferedTransport.cs
@@ -0,0 +1,100 @@
+/**
+ * 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();
+		}
+	}
+}
diff --git a/lib/csharp/src/Transport/TServerSocket.cs b/lib/csharp/src/Transport/TServerSocket.cs
new file mode 100644
index 0000000..2658fce
--- /dev/null
+++ b/lib/csharp/src/Transport/TServerSocket.cs
@@ -0,0 +1,157 @@
+/**
+ * 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.Net.Sockets;
+
+
+namespace Thrift.Transport
+{
+	public class TServerSocket : TServerTransport
+	{
+		/**
+		* Underlying server with socket
+		*/
+		private TcpListener server = null;
+
+		/**
+		 * Port to listen on
+		 */
+		private int port = 0;
+
+		/**
+		 * Timeout for client sockets from accept
+		 */
+		private int clientTimeout = 0;
+
+		/**
+		 * Whether or not to wrap new TSocket connections in buffers
+		 */
+		private bool useBufferedSockets = false;
+
+		/**
+		 * Creates a server socket from underlying socket object
+		 */
+		public TServerSocket(TcpListener listener)
+			:this(listener, 0)
+		{
+		}
+
+		/**
+		 * Creates a server socket from underlying socket object
+		 */
+		public TServerSocket(TcpListener listener, int clientTimeout)
+		{
+			this.server = listener;
+			this.clientTimeout = clientTimeout;
+		}
+
+		/**
+		 * Creates just a port listening server socket
+		 */
+		public TServerSocket(int port)
+			: this(port, 0)
+		{
+		}
+
+		/**
+		 * Creates just a port listening server socket
+		 */
+		public TServerSocket(int port, int clientTimeout)
+			:this(port, clientTimeout, false)
+		{
+		}
+
+		public TServerSocket(int port, int clientTimeout, bool useBufferedSockets)
+		{
+			this.port = port;
+			this.clientTimeout = clientTimeout;
+			this.useBufferedSockets = useBufferedSockets;
+			try
+			{
+				// Make server socket
+				server = new TcpListener(System.Net.IPAddress.Any, this.port);
+			}
+			catch (Exception)
+			{
+				server = null;
+				throw new TTransportException("Could not create ServerSocket on port " + port + ".");
+			}
+		}
+
+		public override void Listen()
+		{
+			// Make sure not to block on accept
+			if (server != null)
+			{
+				try
+				{
+					server.Start();
+				}
+				catch (SocketException sx)
+				{
+					throw new TTransportException("Could not accept on listening socket: " + sx.Message);
+				}
+			}
+		}
+
+		protected override TTransport AcceptImpl()
+		{
+			if (server == null)
+			{
+				throw new TTransportException(TTransportException.ExceptionType.NotOpen, "No underlying server socket.");
+			}
+			try
+			{
+				TcpClient result = server.AcceptTcpClient();
+				TSocket result2 = new TSocket(result);
+				result2.Timeout = clientTimeout;
+				if (useBufferedSockets)
+				{
+					TBufferedTransport result3 = new TBufferedTransport(result2);
+					return result3;
+				}
+				else
+				{
+					return result2;
+				}
+			}
+			catch (Exception ex)
+			{
+				throw new TTransportException(ex.ToString());
+			}
+		}
+
+		public override void Close()
+		{
+			if (server != null)
+			{
+				try
+				{
+					server.Stop();
+				}
+				catch (Exception ex)
+				{
+					throw new TTransportException("WARNING: Could not close server socket: " + ex);
+				}
+				server = null;
+			}
+		}
+	}
+}
diff --git a/lib/csharp/src/Transport/TServerTransport.cs b/lib/csharp/src/Transport/TServerTransport.cs
new file mode 100644
index 0000000..9cb52e5
--- /dev/null
+++ b/lib/csharp/src/Transport/TServerTransport.cs
@@ -0,0 +1,39 @@
+/**
+ * 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;
+
+namespace Thrift.Transport
+{
+	public abstract class TServerTransport
+	{
+		public abstract void Listen();
+		public abstract void Close();
+		protected abstract TTransport AcceptImpl();
+
+		public TTransport Accept()
+		{
+			TTransport transport = AcceptImpl();
+			if (transport == null) {
+			  throw new TTransportException("accept() may not return NULL");
+			}
+			return transport;
+		 }
+	}
+}
diff --git a/lib/csharp/src/Transport/TSocket.cs b/lib/csharp/src/Transport/TSocket.cs
new file mode 100644
index 0000000..18cf154
--- /dev/null
+++ b/lib/csharp/src/Transport/TSocket.cs
@@ -0,0 +1,144 @@
+/**
+ * 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.Net.Sockets;
+
+namespace Thrift.Transport
+{
+	public class TSocket : TStreamTransport
+	{
+		private TcpClient client = null;
+		private string host = null;
+		private int port = 0;
+		private int timeout = 0;
+
+		public TSocket(TcpClient client)
+		{
+			this.client = client;
+
+			if (IsOpen)
+			{
+				inputStream = client.GetStream();
+				outputStream = client.GetStream();
+			}
+		}
+
+		public TSocket(string host, int port) : this(host, port, 0)
+		{
+		}
+
+		public TSocket(string host, int port, int timeout)
+		{
+			this.host = host;
+			this.port = port;
+			this.timeout = timeout;
+
+			InitSocket();
+		}
+
+		private void InitSocket()
+		{
+			client = new TcpClient();
+			client.ReceiveTimeout = client.SendTimeout = timeout;
+		}
+
+		public int Timeout
+		{
+			set
+			{
+				client.ReceiveTimeout = client.SendTimeout = timeout = value;
+			}
+		}
+
+		public TcpClient TcpClient
+		{
+			get
+			{
+				return client;
+			}
+		}
+
+		public string Host
+		{
+			get
+			{
+				return host;
+			}
+		}
+
+		public int Port
+		{
+			get
+			{
+				return port;
+			}
+		}
+
+		public override bool IsOpen
+		{
+			get
+			{
+				if (client == null)
+				{
+					return false;
+				}
+
+				return client.Connected;
+			}
+		}
+
+		public override void Open()
+		{
+			if (IsOpen)
+			{
+				throw new TTransportException(TTransportException.ExceptionType.AlreadyOpen, "Socket already connected");
+			}
+
+			if (String.IsNullOrEmpty(host))
+			{
+				throw new TTransportException(TTransportException.ExceptionType.NotOpen, "Cannot open null host");
+			}
+
+			if (port <= 0)
+			{
+				throw new TTransportException(TTransportException.ExceptionType.NotOpen, "Cannot open without port");
+			}
+
+			if (client == null)
+			{
+				InitSocket();
+			}
+
+			client.Connect(host, port);
+			inputStream = client.GetStream();
+			outputStream = client.GetStream();
+		}
+
+		public override void Close()
+		{
+			base.Close();
+			if (client != null)
+			{
+				client.Close();
+				client = null;
+			}
+		}
+	}
+}
diff --git a/lib/csharp/src/Transport/TStreamTransport.cs b/lib/csharp/src/Transport/TStreamTransport.cs
new file mode 100644
index 0000000..7681e0d
--- /dev/null
+++ b/lib/csharp/src/Transport/TStreamTransport.cs
@@ -0,0 +1,103 @@
+/**
+ * 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 TStreamTransport : TTransport
+	{
+		protected Stream inputStream;
+		protected Stream outputStream;
+
+		public TStreamTransport()
+		{
+		}
+
+		public TStreamTransport(Stream inputStream, Stream outputStream)
+		{
+			this.inputStream = inputStream;
+			this.outputStream = outputStream;
+		}
+
+		public Stream OutputStream
+		{
+			get { return outputStream; }
+		}
+
+		public Stream InputStream
+		{
+			get { return inputStream; }
+		}
+
+		public override bool IsOpen
+		{
+			get { return true; }
+		}
+
+		public override void Open()
+		{
+		}
+
+		public override void Close()
+		{
+			if (inputStream != null)
+			{
+				inputStream.Close();
+				inputStream = null;
+			}
+			if (outputStream != null)
+			{
+				outputStream.Close();
+				outputStream = null;
+			}
+		}
+
+		public override int Read(byte[] buf, int off, int len)
+		{
+			if (inputStream == null)
+			{
+				throw new TTransportException(TTransportException.ExceptionType.NotOpen, "Cannot read from null inputstream");
+			}
+
+			return inputStream.Read(buf, off, len);
+		}
+
+		public override void Write(byte[] buf, int off, int len)
+		{
+			if (outputStream == null)
+			{
+				throw new TTransportException(TTransportException.ExceptionType.NotOpen, "Cannot write to null outputstream");
+			}
+
+			outputStream.Write(buf, off, len);
+		}
+
+		public override void Flush()
+		{
+			if (outputStream == null)
+			{
+				throw new TTransportException(TTransportException.ExceptionType.NotOpen, "Cannot flush null outputstream");
+			}
+
+			outputStream.Flush();
+		}
+	}
+}
diff --git a/lib/csharp/src/Transport/TTransport.cs b/lib/csharp/src/Transport/TTransport.cs
new file mode 100644
index 0000000..83f6776
--- /dev/null
+++ b/lib/csharp/src/Transport/TTransport.cs
@@ -0,0 +1,66 @@
+/**
+ * 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;
+
+namespace Thrift.Transport
+{
+	public abstract class TTransport
+	{
+		public abstract bool IsOpen
+		{
+			get;
+		}
+
+		public bool Peek()
+		{
+			return IsOpen;
+		}
+
+		public abstract void Open();
+
+		public abstract void Close();
+
+		public abstract int Read(byte[] buf, int off, int len);
+
+		public int ReadAll(byte[] buf, int off, int len)
+		{
+			int got = 0;
+			int ret = 0;
+
+			while (got < len)
+			{
+				ret = Read(buf, off + got, len - got);
+				if (ret <= 0)
+				{
+					throw new TTransportException("Cannot read, Remote side has closed");
+				}
+				got += ret;
+			}
+
+			return got;
+		}
+
+		public abstract void Write(byte[] buf, int off, int len);
+
+		public virtual void Flush()
+		{
+		}
+	}
+}
diff --git a/lib/csharp/src/Transport/TTransportException.cs b/lib/csharp/src/Transport/TTransportException.cs
new file mode 100644
index 0000000..fe10faa
--- /dev/null
+++ b/lib/csharp/src/Transport/TTransportException.cs
@@ -0,0 +1,64 @@
+/**
+ * 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;
+
+namespace Thrift.Transport
+{
+	public class TTransportException : Exception
+	{
+		protected ExceptionType type;
+
+		public TTransportException()
+			: base()
+		{
+		}
+
+		public TTransportException(ExceptionType type)
+			: this()
+		{
+			this.type = type;
+		}
+
+		public TTransportException(ExceptionType type, string message)
+			: base(message)
+		{
+			this.type = type;
+		}
+
+		public TTransportException(string message)
+			: base(message)
+		{
+		}
+
+		public ExceptionType Type
+		{
+			get { return type; }
+		}
+
+		public enum ExceptionType
+		{
+			Unknown,
+			NotOpen,
+			AlreadyOpen,
+			TimedOut,
+			EndOfFile
+		}
+	}
+}
diff --git a/lib/csharp/src/Transport/TTransportFactory.cs b/lib/csharp/src/Transport/TTransportFactory.cs
new file mode 100644
index 0000000..3d3694d
--- /dev/null
+++ b/lib/csharp/src/Transport/TTransportFactory.cs
@@ -0,0 +1,38 @@
+/**
+ * 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;
+
+namespace Thrift.Transport
+{
+	/// <summary>
+	/// From Mark Slee & Aditya Agarwal of Facebook:
+	/// Factory class used to create wrapped instance of Transports.
+	/// This is used primarily in servers, which get Transports from
+	/// a ServerTransport and then may want to mutate them (i.e. create
+	/// a BufferedTransport from the underlying base transport)
+	/// </summary>
+	public class TTransportFactory
+	{
+		public virtual TTransport GetTransport(TTransport trans)
+		{
+			return trans;
+		}
+	}
+}