| /** |
| * |
| * Copyright 2005-2006 The Apache Software Foundation or its licensors, as applicable. |
| * |
| * 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 org.apache.xbean.command; |
| |
| import groovy.lang.GroovyShell; |
| import org.codehaus.groovy.runtime.InvokerHelper; |
| |
| import java.io.BufferedReader; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.io.PrintStream; |
| |
| public class GroovySh implements Command { |
| public static void register() { |
| CommandRegistry.register("groovysh", GroovySh.class); |
| } |
| |
| public int main(String[] args, InputStream in, PrintStream out) { |
| GroovyShell shell = new GroovyShell(); |
| BufferedReader reader = new BufferedReader(new InputStreamReader(in)); |
| String version = InvokerHelper.getVersion(); |
| out.println("Lets get Groovy!"); |
| out.println("================"); |
| out.println("Version: " + version + " JVM: " + System.getProperty("java.vm.version")); |
| out.println("Hit carriage return twice to execute a command"); |
| out.println("The command 'quit' will terminate the shell"); |
| int counter = 1; |
| while (true) { |
| StringBuffer buffer = new StringBuffer(); |
| while (true) { |
| out.print("groovy> "); |
| String line; |
| try { |
| line = reader.readLine(); |
| } catch (IOException e) { |
| out.println("Caught: " + e); |
| e.printStackTrace(); |
| return -1; |
| } |
| if (line != null) { |
| buffer.append(line); |
| buffer.append('\n'); |
| } |
| if (line == null || line.trim().length() == 0) { |
| break; |
| } |
| } |
| String command = buffer.toString().trim(); |
| if (command == null || command.equals("quit")) { |
| break; |
| } |
| try { |
| Object answer = shell.evaluate(command, "CommandLine" + counter++ + ".groovy"); |
| out.println(InvokerHelper.inspect(answer)); |
| } catch (Exception e) { |
| out.println("Caught: " + e); |
| e.printStackTrace(); |
| } |
| } |
| return 0; |
| } |
| } |