| /* |
| * Copyright 2003-2007 the original author or authors. |
| * |
| * Licensed 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. |
| */ |
| package groovy.ui; |
| |
| import groovy.lang.GroovyShell; |
| import groovy.lang.Script; |
| |
| import java.io.BufferedReader; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.io.InputStreamReader; |
| import java.io.PrintWriter; |
| import java.net.InetAddress; |
| import java.net.ServerSocket; |
| import java.net.Socket; |
| import java.net.URL; |
| |
| /** |
| * Simple server that executes supplied script against a socket |
| * |
| * @version $Id$ |
| * @author Jeremy Rayner |
| */ |
| public class GroovySocketServer implements Runnable { |
| private URL url; |
| private GroovyShell groovy; |
| private boolean isScriptFile; |
| private String scriptFilenameOrText; |
| private boolean autoOutput; |
| |
| public GroovySocketServer(GroovyShell groovy, boolean isScriptFile, String scriptFilenameOrText, boolean autoOutput, int port) { |
| this.groovy = groovy; |
| this.isScriptFile = isScriptFile; |
| this.scriptFilenameOrText = scriptFilenameOrText; |
| this.autoOutput = autoOutput; |
| try { |
| url = new URL("http", InetAddress.getLocalHost().getHostAddress(), port, "/"); |
| System.out.println("groovy is listening on port " + port); |
| } catch (IOException e) { |
| e.printStackTrace(); |
| } |
| new Thread(this).start(); |
| } |
| |
| public void run() { |
| try { |
| ServerSocket serverSocket = new ServerSocket(url.getPort()); |
| while (true) { |
| // Create one script per socket connection. |
| // This is purposefully not caching the Script |
| // so that the script source file can be changed on the fly, |
| // as each connection is made to the server. |
| Script script; |
| if (isScriptFile) { |
| GroovyMain gm = new GroovyMain(); |
| script = groovy.parse(new FileInputStream(gm.huntForTheScriptFile(scriptFilenameOrText))); |
| } else { |
| script = groovy.parse(scriptFilenameOrText); |
| } |
| new GroovyClientConnection(script, autoOutput, serverSocket.accept()); |
| } |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| class GroovyClientConnection implements Runnable { |
| private Script script; |
| private Socket socket; |
| private BufferedReader reader; |
| private PrintWriter writer; |
| private boolean autoOutputFlag; |
| |
| GroovyClientConnection(Script script, boolean autoOutput,Socket socket) throws IOException { |
| this.script = script; |
| this.autoOutputFlag = autoOutput; |
| this.socket = socket; |
| reader = new BufferedReader(new InputStreamReader(socket.getInputStream())); |
| writer = new PrintWriter(socket.getOutputStream()); |
| new Thread(this, "Groovy client connection - " + socket.getInetAddress().getHostAddress()).start(); |
| } |
| public void run() { |
| try { |
| String line = null; |
| script.setProperty("out", writer); |
| script.setProperty("socket", socket); |
| script.setProperty("init", Boolean.TRUE); |
| while ((line = reader.readLine()) != null) { |
| // System.out.println(line); |
| script.setProperty("line", line); |
| Object o = script.run(); |
| script.setProperty("init", Boolean.FALSE); |
| if (o != null) { |
| if ("success".equals(o)) { |
| break; // to close sockets gracefully etc... |
| } else { |
| if (autoOutputFlag) { |
| writer.println(o); |
| } |
| } |
| } |
| writer.flush(); |
| } |
| } catch (IOException e) { |
| e.printStackTrace(); |
| } finally { |
| try { |
| writer.flush(); |
| writer.close(); |
| } finally { |
| try { |
| socket.close(); |
| } catch (IOException e3) { |
| e3.printStackTrace(); |
| } |
| } |
| } |
| } |
| } |
| } |