/*******************************************************************************

* The accompanying source code is made available to you under the terms of

* the UT Research License (this "UTRL"). By installing or using the code,

* you are consenting to be bound by the UTRL. See LICENSE.html for a

* full copy of the license.

*

* Copyright 2009, The University of Texas at Austin. All rights reserved.

*

* UNIVERSITY EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES CONCERNING THIS

* SOFTWARE AND DOCUMENTATION, INCLUDING ANY WARRANTIES OF MERCHANTABILITY,

* FITNESS FOR ANY PARTICULAR PURPOSE, NON-INFRINGEMENT AND WARRANTIES

* OF PERFORMANCE, AND ANY WARRANTY THAT MIGHT OTHERWISE ARISE FROM COURSE

* OF DEALING OR USAGE OF TRADE. NO WARRANTY IS EITHER EXPRESS OR IMPLIED

* WITH RESPECT TO THE USE OF THE SOFTWARE OR DOCUMENTATION. Under no circumstances

* shall University be liable for incidental, special, indirect, direct

* or consequential damages or loss of profits, interruption of business,

* or related expenses which may arise from use of Software or Documentation,

* including but not limited to those resulting from defects in Software

* and/or Documentation, or loss or inaccuracy of data of any kind.

*

* Created by: William R. Cook and Eli Tilevich

* with: Jose Falcon, Marc Fisher II, Ali Ibrahim, Yang Jiao, Ben Wiedermann

* University of Texas at Austin and Virginia Tech

******************************************************************************/

package batch.tcp;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.io.OutputStreamWriter;

import java.net.ServerSocket;

import java.net.Socket;

import batch.Service;

import batch.syntax.Parser;

import batch.util.BatchTransport;

import batch.util.ForestReader;

import batch.util.ForestWriter;

public class TCPServer<E, T> implements Runnable {

Service<E, T> handler;

ServerSocket socket;

BatchTransport transport;

public boolean debug;

public TCPServer(Service<E, T> handler, ServerSocket socket,

BatchTransport transport) throws IOException {

this.handler = handler;

this.socket = socket;

this.transport = transport;

}

public void run() {

while (true) {

try {

handle(socket.accept());

} catch (IOException e) {

e.printStackTrace();

}

}

}

public void handle(Socket connectionSocket) {

try {

BufferedReader in = new BufferedReader(new InputStreamReader(

connectionSocket.getInputStream()));

// Expression exp = BatchScriptParser.parse(in);

String script = in.readLine();

if (debug)

System.out.println("Script: " + script);

in.readLine(); // Blank line before input

E exp = Parser.parse(script, handler);

ForestReader data = transport.read(in);

// System.out.print("Data: ");

// System.out.println(data.toString());

ForestWriter response = transport.writer(

new OutputStreamWriter(connectionSocket.getOutputStream())

);

handler.executeServer(exp, data, response);

// TODO: supercompilation can combine the execute and write

// phases!

} catch (IOException e) {

e.printStackTrace();

}

}

public void start() {

System.out.println("Server starting on " + socket);

Thread thread = new Thread(this);

thread.start();

}

}