/* 
    P/P   *  Method: com.dmdirc.commandparser.commands.global.UnloadPlugin__static_init
          */
     1  /*
     2   * Copyright (c) 2006-2009 Chris Smith, Shane Mc Cormack, Gregory Holmes
     3   *
     4   * Permission is hereby granted, free of charge, to any person obtaining a copy
     5   * of this software and associated documentation files (the "Software"), to deal
     6   * in the Software without restriction, including without limitation the rights
     7   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     8   * copies of the Software, and to permit persons to whom the Software is
     9   * furnished to do so, subject to the following conditions:
    10   *
    11   * The above copyright notice and this permission notice shall be included in
    12   * all copies or substantial portions of the Software.
    13   *
    14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
    20   * SOFTWARE.
    21   */
    22  
    23  package com.dmdirc.commandparser.commands.global;
    24  
    25  import com.dmdirc.commandparser.CommandArguments;
    26  import com.dmdirc.commandparser.CommandManager;
    27  import com.dmdirc.commandparser.commands.GlobalCommand;
    28  import com.dmdirc.commandparser.commands.IntelligentCommand;
    29  import com.dmdirc.plugins.PluginInfo;
    30  import com.dmdirc.plugins.PluginManager;
    31  import com.dmdirc.ui.input.AdditionalTabTargets;
    32  import com.dmdirc.ui.interfaces.InputWindow;
    33  
    34  import java.util.List;
    35  
    36  /**
    37   * Allows the user to unload a plugin.
    38   * 
    39   * @author chris
    40   */
    41  public final class UnloadPlugin extends GlobalCommand implements IntelligentCommand {
    42      
    43      /**
    44       * Creates a new instance of UnloadPlugin.
    45       */
    46      public UnloadPlugin() {
                 /* 
    P/P           *  Method: void com.dmdirc.commandparser.commands.global.UnloadPlugin()
                  * 
                  *  Preconditions:
                  *    init'ed(com/dmdirc/commandparser/CommandManager.commandChar)
                  */
    47          super();
    48          
    49          CommandManager.registerCommand(this);
    50      }
    51      
    52      /** {@inheritDoc} */
    53      @Override
    54      public void execute(final InputWindow origin, final boolean isSilent,
    55              final CommandArguments args) {
                 /* 
    P/P           *  Method: void execute(InputWindow, bool, CommandArguments)
                  * 
                  *  Preconditions:
                  *    args != null
                  *    init'ed(args.words)
                  *    (soft) args.line != null
                  *    (soft) init'ed(com/dmdirc/commandparser/CommandManager.commandChar)
                  * 
                  *  Presumptions:
                  *    com.dmdirc.plugins.PluginManager:getPluginManager(...)@61 != null
                  *    com.dmdirc.plugins.PluginManager:getPluginManager(...)@65 != null
                  *    com.dmdirc.plugins.PluginManager:getPluginManager(...)@67 != null
                  *    getArguments(...).length@61 >= 1
                  *    java.util.Arrays:copyOfRange(...)@99 != null
                  * 
                  *  Postconditions:
                  *    args.words != null
                  *    init'ed(java.lang.String:split(...)._tainted)
                  *    java.lang.String:split(...)._tainted == 0
                  *    init'ed(java.lang.String:split(...).length)
                  * 
                  *  Test Vectors:
                  *    com.dmdirc.plugins.PluginManager:delPlugin(...)@65: {0}, {1}
                  *    com.dmdirc.plugins.PluginManager:getPluginInfoByName(...)@61: Inverse{null}, Addr_Set{null}
                  *    getArguments(...).length@56: {1..+Inf}, {0}
                  */
    56          if (args.getArguments().length == 0) {
    57              showUsage(origin, isSilent, "unloadplugin", "<plugin>");
    58              return;
    59          }
    60          
    61          final PluginInfo plugin = PluginManager.getPluginManager()
    62                  .getPluginInfoByName(args.getArguments()[0]);
    63          if (plugin == null) {
    64              sendLine(origin, isSilent, FORMAT_ERROR, "Plugin unloading failed - Plugin not loaded");
    65          } else if (PluginManager.getPluginManager().delPlugin(plugin.getRelativeFilename())) {
    66              sendLine(origin, isSilent, FORMAT_OUTPUT, "Plugin Unloaded.");
    67              PluginManager.getPluginManager().updateAutoLoad(plugin);
    68          } else {
    69              sendLine(origin, isSilent, FORMAT_ERROR, "Plugin Unloading failed");
    70          }
    71      }
    72      
    73      /** {@inheritDoc} */
    74      @Override
    75      public String getName() {
                 /* 
    P/P           *  Method: String getName()
                  * 
                  *  Postconditions:
                  *    return_value == &amp;"unloadplugin"
                  */
    76          return "unloadplugin";
    77      }
    78      
    79      /** {@inheritDoc} */
    80      @Override
    81      public boolean showInHelp() {
                 /* 
    P/P           *  Method: bool showInHelp()
                  * 
                  *  Postconditions:
                  *    return_value == 1
                  */
    82          return true;
    83      }
    84      
    85      /** {@inheritDoc} */
    86      @Override
    87      public String getHelp() {
                 /* 
    P/P           *  Method: String getHelp()
                  * 
                  *  Postconditions:
                  *    return_value == &amp;"unloadplugin <plugin> - Unloads the specified plugin"
                  */
    88          return "unloadplugin <plugin> - Unloads the specified plugin";
    89      }
    90  
    91      /** {@inheritDoc} */
    92      @Override
    93      public AdditionalTabTargets getSuggestions(final int arg, final List<String> previousArgs) {
                 /* 
    P/P           *  Method: AdditionalTabTargets getSuggestions(int, List)
                  * 
                  *  Presumptions:
                  *    com.dmdirc.plugins.PluginManager:getPluginInfos(...)@97 != null
                  *    com.dmdirc.plugins.PluginManager:getPluginManager(...)@97 != null
                  *    com.dmdirc.ui.input.AdditionalTabTargets:excludeAll(...)@94 != null
                  *    java.util.Iterator:next(...)@97 != null
                  * 
                  *  Postconditions:
                  *    return_value != null
                  * 
                  *  Test Vectors:
                  *    arg: {-231..-1, 1..232-1}, {0}
                  *    com.dmdirc.plugins.PluginInfo:isLoaded(...)@98: {0}, {1}
                  *    java.util.Iterator:hasNext(...)@97: {0}, {1}
                  */
    94          final AdditionalTabTargets res = new AdditionalTabTargets().excludeAll();
    95          
    96          if (arg == 0) {            
    97              for (PluginInfo possPlugin : PluginManager.getPluginManager().getPluginInfos()) {
    98                  if (possPlugin.isLoaded()) {
    99                      res.add(possPlugin.getName());
   100                  }
   101              }
   102          }
   103          
   104          return res;
   105      }
   106      
   107  }