Examples of org.apache.log4j.plugins.Plugin

org.apache.log4j.plugins.Plugin
Defines the required interface for all Plugin objects.
A plugin implements some specific functionality to extend the log4j framework. Each plugin is associated with a specific LoggerRepository, which it then uses/acts upon. The functionality of the plugin is up to the developer.
Examples of plugins are Receiver and Watchdog. Receiver plugins allow for remote logging events to be received and processed by a repository as if the event was sent locally. Watchdog plugins allow for a repository to be reconfigured when some "watched" configuration data changes. @author Mark Womack @author Nicko Cadell @author Paul Smith @since 1.3

//    cc.activateOptions();
    
//    TODO this should also be fixed up, as VFS bits and pieces might not be built in an Ant build when they don't have all the VFS jars local
    try {
      Class vfsPluginClass = Class.forName("org.apache.log4j.chainsaw.vfs.VFSPlugin");
      Plugin vfsPlugin = (Plugin) vfsPluginClass.newInstance();
      vfsPlugin.activateOptions();
      pluginRegistry.addPlugin(vfsPlugin);
      MessageCenter.getInstance().getLogger().info("Looks like VFS is available... WooHoo!");
    } catch (Throwable e) {
      MessageCenter.getInstance().getLogger().error("Doesn't look like VFS is available", e);
    }

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                public void run() {
                  PluginRegistry pluginRegistry = LogManager.getLoggerRepository().getPluginRegistry();
                  List list = pluginRegistry.getPlugins(Generator.class);


                  for (Iterator iter = list.iterator(); iter.hasNext();) {
                    Plugin plugin = (Plugin) iter.next();
                    pluginRegistry.stopPlugin(plugin.getName());
                  }
                }
              }).start();
            setEnabled(false);
            startTutorial.putValue("TutorialStarted", Boolean.FALSE);

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              (DefaultMutableTreeNode) path.getLastPathComponent();


            if (
              (node != null) && (node.getUserObject() != null)
                && (node.getUserObject() instanceof Plugin)) {
              Plugin p = (Plugin) node.getUserObject();
              logger.debug("plugin=" + p);
              pluginEditorPanel.setPlugin(p);
            } else {
              pluginEditorPanel.setPlugin(null);
            }

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                  panel.getOkPanel().getOkButton().addActionListener(
                    new ActionListener() {
                      public void actionPerformed(ActionEvent e2) {
                        dialog.dispose();
                        Plugin plugin = panel.getPlugin();
                        pluginRegistry.addPlugin(plugin);
                        plugin.activateOptions();
                        MessageCenter.getInstance().addMessage("Plugin '" + plugin.getName() + "' started");
                      }
                    });
                  dialog.show();
                } catch (Exception e1) {
                  e1.printStackTrace();

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              (DefaultMutableTreeNode) path.getLastPathComponent();


            if (
              (node != null) && (node.getUserObject() != null)
                && (node.getUserObject() instanceof Plugin)) {
              Plugin p = (Plugin) node.getUserObject();
              logger.debug("plugin=" + p);
              pluginEditorPanel.setPlugin(p);
            } else {
              pluginEditorPanel.setPlugin(null);
            }

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                  panel.getOkPanel().getOkButton().addActionListener(
                    new ActionListener() {
                      public void actionPerformed(ActionEvent e2) {
                        dialog.dispose();
                        Plugin plugin = panel.getPlugin();
                        pluginRegistry.addPlugin(plugin);
                        plugin.activateOptions();
                        MessageCenter.getInstance().addMessage("Plugin '" + plugin.getName() + "' started");
                      }
                    });
                  dialog.show();
                } catch (Exception e1) {
                  e1.printStackTrace();

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        pluginEditorPanel.addPropertyChangeListener("plugin",
            new PropertyChangeListener() {


                public void propertyChange(PropertyChangeEvent evt) {


                    Plugin plugin = (Plugin) evt.getNewValue();
                    URL url = HelpManager.getInstance().getHelpForClass(
                            plugin.getClass());


                    try {
                        javaDocPane.setPage(url);
                    } catch (IOException e) {
                        MessageCenter.getInstance().getLogger().error(
                            "Failed to load the Help resource for " +
                            plugin.getClass(), e);
                    }
                }
            });
    }

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  protected Plugin parsePlugin(Element pluginElement) {
    String className = subst(pluginElement.getAttribute(CLASS_ATTR));
    LogLog.debug("Creating plugin: [" + className + ']');


    try {
      Plugin plugin = (Plugin) Loader.loadClass(className).newInstance();
      PropertySetter propSetter = new PropertySetter(plugin);


      plugin.setName(subst(pluginElement.getAttribute(NAME_ATTR)));


      NodeList children = pluginElement.getChildNodes();
      final int length = children.getLength();


      for (int loop = 0; loop < length; loop++) {

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      } else if (tagName.equals(ROOT_TAG)) {
        parseRoot(currentElement);
      } else if (tagName.equals(RENDERER_TAG)) {
        parseRenderer(currentElement);
      } else if (tagName.equals(PLUGIN_TAG)) {
        Plugin plugin = parsePlugin(currentElement);


        if (plugin != null) {
          repository.getPluginRegistry().addPlugin(plugin);
          plugin.activateOptions();
        }
      }
    }


    // let listeners know the configuration just changed

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//    cc.activateOptions();
    
//    TODO this should also be fixed up, as VFS bits and pieces might not be built in an Ant build when they don't have all the VFS jars local
    try {
      Class vfsPluginClass = Class.forName("org.apache.log4j.chainsaw.vfs.VFSPlugin");
      Plugin vfsPlugin = (Plugin) vfsPluginClass.newInstance();
      vfsPlugin.activateOptions();
      pluginRegistry.addPlugin(vfsPlugin);
      MessageCenter.getInstance().getLogger().info("Looks like VFS is available... WooHoo!");
    } catch (Throwable e) {
      MessageCenter.getInstance().getLogger().error("Doesn't look like VFS is available", e);
    }

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org.apache.log4j.chainsaw.help.Tutorial

org.apache.log4j.chainsaw.LogUI

org.apache.log4j.chainsaw.receivers.NewReceiverDialogPanel

org.apache.log4j.chainsaw.receivers.PluginPropertyEditorPanel

org.apache.log4j.chainsaw.receivers.ReceiversPanel

org.apache.log4j.chainsaw.receivers.ReceiversPanel$NewReceiverPopupMenu

org.apache.log4j.xml.DOMConfigurator

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