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From jdil...@apache.org
Subject cvs commit: incubator-geronimo/modules/twiddle/src/java/org/apache/geronimo/twiddle/commands DumpPropertiesCommand.java
Date Thu, 28 Aug 2003 12:38:15 GMT
jdillon     2003/08/28 05:38:15

  Modified:    modules/twiddle/src/conf twiddle.conf
  Added:       modules/twiddle/src/java/org/apache/geronimo/twiddle/commands
                        DumpPropertiesCommand.java
  Log:
   o A command to dump system properties
  
  Revision  Changes    Path
  1.6       +2 -1      incubator-geronimo/modules/twiddle/src/conf/twiddle.conf
  
  Index: twiddle.conf
  ===================================================================
  RCS file: /home/cvs/incubator-geronimo/modules/twiddle/src/conf/twiddle.conf,v
  retrieving revision 1.5
  retrieving revision 1.6
  diff -u -r1.5 -r1.6
  --- twiddle.conf	27 Aug 2003 11:59:59 -0000	1.5
  +++ twiddle.conf	28 Aug 2003 12:38:15 -0000	1.6
  @@ -10,6 +10,7 @@
     
     <commands>
       <command name="exit" code="org.apache.geronimo.twiddle.commands.ExitCommand"/>
  +    <command name="dump" code="org.apache.geronimo.twiddle.commands.DumpPropertiesCommand"/>
     </commands>
   
   </configuration>
  
  
  
  1.1                  incubator-geronimo/modules/twiddle/src/java/org/apache/geronimo/twiddle/commands/DumpPropertiesCommand.java
  
  Index: DumpPropertiesCommand.java
  ===================================================================
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2003 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution,
   *    if any, must include the following acknowledgment:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Apache" and "Apache Software Foundation" and
   *    "Apache Geronimo" must not be used to endorse or promote products
   *    derived from this software without prior written permission. For
   *    written permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache",
   *    "Apache Geronimo", nor may "Apache" appear in their name, without
   *    prior written permission of the Apache Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   * ====================================================================
   */
  
  package org.apache.geronimo.twiddle.commands;
  
  import java.io.PrintWriter;
  
  import org.apache.commons.cli.Options;
  import org.apache.commons.cli.Option;
  import org.apache.commons.cli.CommandLine;
  import org.apache.commons.cli.CommandLineParser;
  import org.apache.commons.cli.PosixParser;
  import org.apache.commons.cli.OptionBuilder;
  import org.apache.commons.cli.ParseException;
  
  import org.apache.geronimo.common.NullArgumentException;
  
  import org.apache.geronimo.twiddle.command.Command;
  import org.apache.geronimo.twiddle.command.CommandException;
  import org.apache.geronimo.twiddle.command.CommandInfo;
  import org.apache.geronimo.twiddle.command.CommandContext;
  import org.apache.geronimo.twiddle.command.AbstractCommand;
  
  import org.apache.geronimo.twiddle.util.HelpFormatter;
  
  /**
   * Dumps system properties.
   *
   * @version <code>$Revision: 1.1 $ $Date: 2003/08/28 12:38:15 $</code>
   */
  public class DumpPropertiesCommand
      extends AbstractCommand
  {
      public int execute(String[] args) throws Exception
      {
          if (args == null) {
              throw new NullArgumentException("args");
          }
          
          // Get our output writer
          PrintWriter out = getWriter();
          
          // Create the Options
          Options options = new Options();
          options.addOption(OptionBuilder.withLongOpt("help")
                                         .withDescription("Display this help message")
                                         .create('h'));
          
          // Create the command line parser
          CommandLineParser parser = new PosixParser();
          
          // Carse the command line arguments
          CommandLine line = parser.parse(options, args);
          
          // Display help
          if (line.hasOption('h')) {
              CommandInfo info = getCommandInfo();
              if (info.hasDescription()) {
                  out.println(info.getDescription());
                  out.println();
              }
              
              HelpFormatter formatter = new HelpFormatter(out);
              formatter.print(info.getName() + " [options] [prefix]", options);
              
              return Command.SUCCESS;
          }
          
          String[] unused = line.getArgs();
          String prefix = null;
          if (unused != null && unused.length != 0) {
              if (unused.length == 1) {
                  prefix = unused[0];
              }
              else {
                  throw new CommandException("Too many arguments");
              }
          }
          log.debug("Using prefix: " + prefix);
          
          java.util.Iterator iter = System.getProperties().keySet().iterator();
          while (iter.hasNext()) {
              String name = (String)iter.next();
              if (prefix == null || name.startsWith(prefix)) {
                  out.print(name + "=");
                  out.println(System.getProperty(name));
              }
          }
          
          // Will never reach here
          assert false;
          
          return Command.FAILURE;
      }
  }
  
  
  

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