/**

  * 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.

  */

 package org.apache.xbean.command;

 import java.io.DataInputStream;

 import java.io.IOException;

 import java.io.InputStream;

 import java.io.PrintStream;

 import java.util.StringTokenizer;

 import java.util.Vector;

 public class CommandShell implements Command {

     private final String prompt;

     public CommandShell(String serverName) {

         serverName = serverName.toLowerCase();

         prompt = TTY_Reset + TTY_Bright + "["+serverName+"]$ " + TTY_Reset;

     }

     private boolean stop = false;

     private int rc = 0;

     public static final char ESC = (char) 27;

     public static final String TTY_Reset = ESC + "[0m";

     public static final String TTY_Bright = ESC + "[1m";

     public static final String TTY_Dim = ESC + "[2m";

     public static final String TTY_Underscore = ESC + "[4m";

     public static final String TTY_Blink = ESC + "[5m";

     public static final String TTY_Reverse = ESC + "[7m";

     public static final String TTY_Hidden = ESC + "[8m";

     /* Foreground Colors */

     public static final String TTY_FG_Black = ESC + "[30m";

     public static final String TTY_FG_Red = ESC + "[31m";

     public static final String TTY_FG_Green = ESC + "[32m";

     public static final String TTY_FG_Yellow = ESC + "[33m";

     public static final String TTY_FG_Blue = ESC + "[34m";

     public static final String TTY_FG_Magenta = ESC + "[35m";

     public static final String TTY_FG_Cyan = ESC + "[36m";

     public static final String TTY_FG_White = ESC + "[37m";

     /* Background Colors */

     public static final String TTY_BG_Black = ESC + "[40m";

     public static final String TTY_BG_Red = ESC + "[41m";

     public static final String TTY_BG_Green = ESC + "[42m";

     public static final String TTY_BG_Yellow = ESC + "[43m";

     public static final String TTY_BG_Blue = ESC + "[44m";

     public static final String TTY_BG_Magenta = ESC + "[45m";

     public static final String TTY_BG_Cyan = ESC + "[46m";

     public static final String TTY_BG_White = ESC + "[47m";

     public int main(String[] args, InputStream input, PrintStream out) {

         DataInputStream in = new DataInputStream(input);

         while (!stop) {

             prompt(in, out);

         }

         return rc;

     }

     protected void prompt(DataInputStream in, PrintStream out) {

         try {

             out.print(prompt);

             out.flush();

             String commandline = in.readLine();

             if( commandline == null ) {

                 this.stop = true;

                 return;

             }

             commandline = commandline.trim();

             if (commandline.length() < 1) {

                 return;

             }

             String command = commandline;

             StringTokenizer cmdstr = new StringTokenizer(command);

             command = cmdstr.nextToken();

             // Get parameters

             Vector p = new Vector();

             while ( cmdstr.hasMoreTokens() ) {

                 p.add(cmdstr.nextToken());

             }

             String[] args = new String[p.size()];

             p.copyInto(args);

             Command cmd = CommandRegistry.getCommand(command);

             if (cmd == null) {

                 out.print(command);

                 out.println(": command not found");

             } else {

                 cmd.main(args, in, out);

             }

         } catch (UnsupportedOperationException e) {

             this.rc=-1;

             this.stop = true;

         } catch (Throwable e) {

             e.printStackTrace(out);

             this.rc=-1;

             this.stop = true;

         }

     }

     protected void badCommand(DataInputStream in, PrintStream out) throws IOException {

         //asdf: command not found

     }

 }