PluginProxyManager.java

Index Score
tvbrowser.core.plugin
TV-Browser

View: Reasons, Metrics, Source Code

These are the metrics that contribute to the Enerjy Score for this file, ranked by impact. So the metrics listed at the top influence the score to a greater extent that the metrics listed at the bottom.

MetricDescription
EXEC_COMMENTSComments in executable code
LINE_COMMENTNumber of line comments
DECL_COMMENTSComments in declarations
BLOCKSNumber of blocks
COMMENTSComment lines
EXITSProcedure exits
DOC_COMMENTNumber of javadoc comment lines
SIZESize of the file in bytes
LINESNumber of lines in the source file
CYCLOMATICCyclomatic complexity
OPERATORSNumber of operators
LOCLines of code
FUNCTIONSNumber of function declarations
UNIQUE_OPERANDSNumber of unique operands
RETURNSNumber of return points from functions
PROGRAM_LENGTHHalstead program length
INTERFACE_COMPLEXITYInterface complexity
PROGRAM_VOCABHalstead program vocabulary
ELOCEffective lines of code
OPERANDSNumber of operands
LOGICAL_LINESNumber of statements
JAVA0166JAVA0166 Generic exception caught
JAVA0034JAVA0034 Missing braces in if statement
PARAMSNumber of formal parameter declarations
JAVA0170JAVA0170 Caught exception not derived from java.lang.Exception
JAVA0049JAVA0049 Nested block at depth N (maximum: M)
COMPARISONSNumber of comparison operators
WHITESPACENumber of whitespace lines
JAVA0130JAVA0130 Non-static method does not use instance fields
JAVA0108JAVA0108 Incorrect javadoc: no @param tag for 'parameter'
JAVA0128JAVA0128 Public constructor in non-public class
NEST_DEPTHMaximum nesting depth
PROGRAM_VOLUMEHalstead program volume
JAVA0136JAVA0136 N methods defined in class (maximum: M)
JAVA0160JAVA0160 Method does not throw specified exception
JAVA0126JAVA0126 Method declares unchecked exception in throws
JAVA0110JAVA0110 Incorrect javadoc: no @return tag
UNIQUE_OPERATORSNumber of unique operators
JAVA0145JAVA0145 Tab character used in source file
/* * TV-Browser * Copyright (C) 04-2003 Martin Oberhauser (martin@tvbrowser.org) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * CVS information: * $RCSfile$ * $Source$ * $Date: 2008-05-03 20:40:48 -0400 (Sat, 03 May 2008) $ * $Author: ds10 $ * $Revision: 4607 $ */ package tvbrowser.core.plugin; import java.awt.Component; import java.awt.Frame; import java.io.File; import java.util.ArrayList; import java.util.HashMap; import java.util.logging.Level; import java.util.logging.Logger; import javax.swing.JMenu; import javax.swing.JPopupMenu; import tvbrowser.core.Settings; import tvbrowser.core.TvDataBase; import tvbrowser.core.TvDataBaseListener; import tvbrowser.core.TvDataUpdateListener; import tvbrowser.core.TvDataUpdater; import tvbrowser.core.contextmenu.ContextMenuManager; import tvbrowser.core.filters.FilterList; import tvbrowser.core.filters.FilterManagerImpl; import tvbrowser.ui.mainframe.MainFrame; import tvdataservice.MarkedProgramsList; import tvdataservice.MutableChannelDayProgram; import util.exc.ErrorHandler; import util.exc.TvBrowserException; import devplugin.ChannelDayProgram; import devplugin.ContextMenuIf; import devplugin.PluginsProgramFilter; import devplugin.Program; /** * Manages all plugin proxies and creates them on startup. * <p> * Note: This class is not called "PluginManager" as in older versions, to make * a difference to the class {@link devplugin.PluginManager}. * * @author Til Schneider, www.murfman.de */ /** * @author bananeweizen * */ public class PluginProxyManager { /** The logger for this class */ private static java.util.logging.Logger mLog = Logger.getLogger(PluginProxyManager.class.getName()); /** The localizer for this class. */ public static final util.ui.Localizer mLocalizer = util.ui.Localizer.getLocalizerFor(PluginProxyManager.class); /** The singleton. */ private static PluginProxyManager mSingleton; /** * The name of the directory where the plugins are located in TV-Browser 2.01 * and before */ public static final String PLUGIN_DIRECTORY = "plugins"; /** * The plugin state 'shut down'. * <p> * An shut down plugin has been shut down and can't be used any more. */ public static final int SHUT_DOWN_STATE = 1; /** * The plugin state 'loaded'. * <p> * A loaded plugin has an existing PluginProxy instance, but is not activated. */ public static final int LOADED_STATE = 2; /** * The plugin state 'activated'. * <p> * An activated plugin has loaded its settings and is ready to be used. */ public static final int ACTIVATED_STATE = 3; /** * The list containing all plugins (PluginListItem objects) in the right * order. */ private ArrayList<PluginListItem> mPluginList; private HashMap<String,PluginListItem> mPluginMap; /** The registered {@link PluginStateListener}s. */ private ArrayList<PluginStateListener> mPluginStateListenerList; /** The currently activated plugins. This is only a cache, it might be null. */ private PluginProxy[] mActivatedPluginCache; /** All plugins. This is only a cache, it might be null. */ private PluginProxy[] mAllPluginCache; /** * list of plugins which got a startFinished callback, to not call it twice */ private ArrayList<PluginProxy> mStartFinishedPlugins = new ArrayList<PluginProxy>(); /** * Creates a new instance of PluginProxyManager. */ private PluginProxyManager() { mPluginList = new ArrayList<PluginListItem>(); mPluginMap = new HashMap<String, PluginListItem>(); mPluginStateListenerList = new ArrayList<PluginStateListener>(); TvDataBase.getInstance().addTvDataListener(new TvDataBaseListener() { public void dayProgramAdded(ChannelDayProgram prog) { fireTvDataAdded(prog); } public void dayProgramDeleted(ChannelDayProgram prog) { fireTvDataDeleted(prog); } public void dayProgramAdded(MutableChannelDayProgram prog) { fireTvDataAdded(prog); } }); TvDataUpdater.getInstance().addTvDataUpdateListener(new TvDataUpdateListener() { public void tvDataUpdateStarted() { } public void tvDataUpdateFinished() { fireTvDataUpdateFinished(); } }); devplugin.Plugin.setPluginManager(PluginManagerImpl.getInstance()); } /** * Gets the singleton. * * @return the singleton. */ public static PluginProxyManager getInstance() { if (mSingleton == null) { mSingleton = new PluginProxyManager(); } return mSingleton; } public void registerPlugin(AbstractPluginProxy plugin) { // Add it to the list PluginListItem pluginListItem = new PluginListItem(plugin); // first remove an earlier proxy of the same plugin // may happen due to lazy plugin loading PluginListItem remove = null; for (PluginListItem listItem : mPluginList) { if (listItem.getPlugin().getId().equals(plugin.getId())) { remove = listItem; break; } } if (remove != null) { mPluginList.remove(remove); } // now add the current proxy mPluginList.add(pluginListItem); mPluginMap.put(plugin.getId(), pluginListItem); firePluginLoaded(plugin); // Clear the cache mAllPluginCache = null; } /** * This method must be called on start-up. * * @throws TvBrowserException If initialization failed. */ public void init() throws TvBrowserException { // Install the pending plugins // installPendingPlugins(); // Load all plugins // loadAllPlugins(); // Get the plugin order String[] pluginOrderArr = Settings.propPluginOrder.getStringArray(); // Get the list of deactivated plugins String[] deactivatedPluginArr = Settings.propDeactivatedPlugins.getStringArray(); // Check whether the plugin order is the old setting using class names if ((pluginOrderArr != null) && (pluginOrderArr.length > 0)) { // Check whether the first entry is a class name and not an ID String className = pluginOrderArr[0]; String asId = "java." + className; if ((getPluginForId(className) == null) && (getPluginForId(asId) != null)) { // It is the old array // Create the list of deactivated plugins deactivatedPluginArr = installedClassNamesToDeactivatedIds(pluginOrderArr); Settings.propDeactivatedPlugins.setStringArray(deactivatedPluginArr); // Convert the old array of class names into an array of IDs for (int i = 0; i < pluginOrderArr.length; i++) { pluginOrderArr[i] = "java." + pluginOrderArr[i]; } Settings.propPluginOrder.setStringArray(pluginOrderArr); // Convert the default context menu plugin from class name to ID String defaultPluginClassName = Settings.propDefaultContextMenuIf.getString(); Settings.propDefaultContextMenuIf.setString("java." + defaultPluginClassName); // Convert the middle click context menu plugin from class name to ID String middleClickPluginClassName = Settings.propMiddleClickIf.getString(); Settings.propMiddleClickIf.setString("java." + middleClickPluginClassName); } } // Set the plugin order setPluginOrder(pluginOrderArr); // Activate all plugins except the ones that are explicitely deactivated activateAllPluginsExcept(deactivatedPluginArr); ContextMenuManager.getInstance(); } /** * Sets the parent frame to all plugins. * * @param parent The parent frame to set. */ public void setParentFrame(Frame parent) { synchronized (mPluginList) { for (PluginListItem item : mPluginList) { item.getPlugin().setParentFrame(parent); } } } /** * Converts an array of class names of installed (= activated) plugins (that's * the way plugins were saved in former times) into an array of IDs of * deactivated plugins (that's the way plugins are saved now). * * @param installedPluginClassNameArr The (old) array of class names of * installed (= activated) plugins * @return The (new) array of IDs of deactivated plugins. */ private String[] installedClassNamesToDeactivatedIds(String[] installedPluginClassNameArr) { // Create a list of IDs of deactivated plugins. ArrayList<String> deactivatedPluginList = new ArrayList<String>(); synchronized (mPluginList) { for (PluginListItem item : mPluginList) { String pluginId = item.getPlugin().getId(); // Check whether this plugin is deactivated boolean activated = false; for (String className : installedPluginClassNameArr) { // Convert the class name into a ID String asId = "java." + className; if (pluginId.equals(asId)) { activated = true; break; } } // Add the plugin ID, if the plugin is not activated if (!activated) { deactivatedPluginList.add(pluginId); } } } // Create an array from the list String[] deactivatedPluginIdArr = new String[deactivatedPluginList.size()]; deactivatedPluginList.toArray(deactivatedPluginIdArr); return deactivatedPluginIdArr; } /** * Sets the plugin order. * <p> * The order will not be saved to the settings. This must be done by the * caller. * * @param pluginOrderArr The IDs of the plugins in the wanted order. All * missing plugins will be appended at the end. */ public void setPluginOrder(String[] pluginOrderArr) { if ((pluginOrderArr == null) || (pluginOrderArr.length == 0)) { // Nothing to do return; } synchronized (mPluginList) { // Move all plugin list items to a temporary list ArrayList<PluginListItem> tempList = new ArrayList<PluginListItem>(mPluginList.size()); tempList.addAll(mPluginList); mPluginList.clear(); for (String id : pluginOrderArr) { // Find the item with this id and move it to the mPluginList for (int i = 0; i < tempList.size(); i++) { PluginListItem item = tempList.get(i); if (id.equals(item.getPlugin().getId())) { tempList.remove(i); mPluginList.add(item); break; } } } // Append all remaining items mPluginList.addAll(tempList); } // Clear the caches mActivatedPluginCache = null; mAllPluginCache = null; } /** * Activates all plugins except for the given ones * * @param deactivatedPluginIdArr The IDs of the plugins that should NOT be * activated. */ private void activateAllPluginsExcept(String[] deactivatedPluginIdArr) { synchronized (mPluginList) { for (PluginListItem item : mPluginList) { String pluginId = item.getPlugin().getId(); // Check whether this plugin is deactivated boolean activated = true; if (deactivatedPluginIdArr != null) { for (String deactivatedId : deactivatedPluginIdArr) { if (pluginId.equals(deactivatedId)) { activated = false; break; } } } // Activate the plugin if (activated) { try { activatePlugin(item); } catch (TvBrowserException exc) { ErrorHandler.handle(exc); } } } } } /** * Activates a plugin. * * @param plugin The plugin to activate * @throws TvBrowserException If activating failed */ public void activatePlugin(PluginProxy plugin) throws TvBrowserException { activatePlugin(plugin, false); } /** * Activates a plugin. * * @param plugin The plugin to activate * @throws TvBrowserException If activating failed */ public void activatePlugin(PluginProxy plugin, boolean setParentFrame) throws TvBrowserException { PluginListItem item = getItemForPlugin(plugin); if (item != null) { activatePlugin(item); if (setParentFrame) { item.getPlugin().setParentFrame(MainFrame.getInstance()); } PluginsProgramFilter[] filters = item.getPlugin().getAvailableFilter(); if(filters != null) { for(PluginsProgramFilter filter : filters) { FilterManagerImpl.getInstance().addFilter(filter); } } } } /** * Activates a plugin. * * @param item The item of the plugin to activate * @throws TvBrowserException If activating failed */ private void activatePlugin(PluginListItem item) throws TvBrowserException { // Check the state checkStateChange(item, LOADED_STATE, ACTIVATED_STATE); // Log this event mLog.info("Activating plugin " + item.getPlugin().getId()); // Set the plugin active item.setState(ACTIVATED_STATE); // Tell the plugin that we activate it now item.getPlugin().onActivation(); // Get the user directory String userDirectoryName = Settings.getUserSettingsDirName(); File userDirectory = new File(userDirectoryName); // Load the plugin settings item.getPlugin().loadSettings(userDirectory); // Clear the activated plugins cache mActivatedPluginCache = null; // Inform the listeners firePluginActivated(item.getPlugin()); } /** * Deactivates a plugin. * * @param plugin The plugin to deactivate * @throws TvBrowserException If deactivating failed */ public void deactivatePlugin(PluginProxy plugin) throws TvBrowserException { PluginListItem item = getItemForPlugin(plugin); if (item != null) { PluginsProgramFilter[] filters = FilterList.getInstance().getPluginsProgramFiltersForPlugin(plugin); for(PluginsProgramFilter filter : filters) { if(FilterManagerImpl.getInstance().getCurrentFilter() == filter) { FilterManagerImpl.getInstance().setCurrentFilter(FilterManagerImpl.getInstance().getDefaultFilter()); } FilterList.getInstance().remove(filter); } FilterList.getInstance().store(); MainFrame.getInstance().updateFilterMenu(); deactivatePlugin(item, true); } } /** * Deactivates a plugin. * * @param item The item of the plugin to deactivate //@throws * TvBrowserException If deactivating failed */ private void deactivatePlugin(PluginListItem item, boolean log) throws TvBrowserException { // Check the state checkStateChange(item, ACTIVATED_STATE, LOADED_STATE); // Log this event if (log) { mLog.info("Deactivating plugin " + item.getPlugin().getId()); } // Try to save the plugin settings. If saving fails, we continue // deactivating the plugin. try { saveSettings(item); } catch (TvBrowserException e) { ErrorHandler.handle(e); } final PluginProxy plugin = item.getPlugin(); // Tell the plugin that we deactivate it now item.getPlugin().onDeactivation(); // Set the plugin active item.setState(LOADED_STATE); // Clear the activated plugins cache mActivatedPluginCache = null; // Inform the listeners firePluginDeactivated(item.getPlugin(), log); // Run through all Programs and umark this Plugin if(plugin != null && !MainFrame.isShuttingDown()) { new Thread("Unmark all programs of plugin") { public void run() { setPriority(Thread.MIN_PRIORITY); Program[] programs = MarkedProgramsList.getInstance().getMarkedPrograms(); for (Program program : programs) { if(program != null) { program.unmark(plugin); } } }; }.start(); } } /** * Deactivates a plugin and removes it from the PluginList * * @param plugin The plugin to deactivate * @throws TvBrowserException If deactivating failed */ public void removePlugin(PluginProxy plugin) throws TvBrowserException { PluginListItem item = getItemForPlugin(plugin); if (item != null) { if (item.getState() == ACTIVATED_STATE) { deactivatePlugin(item, true); } mPluginList.remove(item); mPluginMap.remove(plugin.getId()); mActivatedPluginCache = null; mAllPluginCache = null; } } /** * Saves the settings for the given PluginProxy. * <p> * @param plugin The plugin proxy to save the settings for. * @return If the settings were successfully saved. */ public boolean saveSettings(PluginProxy plugin) { try { saveSettings(getItemForPlugin(plugin)); }catch(Exception e) { return false; } return true; } private void saveSettings(PluginListItem item) throws TvBrowserException { // Get the user directory String userDirectoryName = Settings.getUserSettingsDirName(); File userDirectory = new File(userDirectoryName); // Create the user directory if it does not exist if (!userDirectory.exists()) { userDirectory.mkdirs(); } item.getPlugin().saveSettings(userDirectory,!MainFrame.isShuttingDown()); } /** * Deactivates and shuts down all plugins. * * @param log If the logging is activated. */ public void shutdownAllPlugins(boolean log) { synchronized (mPluginList) { // Deactivate all active plugins for (PluginListItem item : mPluginList) { if (item.getPlugin().isActivated()) { try { deactivatePlugin(item, log); } catch (TvBrowserException exc) { ErrorHandler.handle(exc); } } } // Shut down all plugins for (PluginListItem item : mPluginList) { // Log this event if (log) { mLog.info("Shutting down plugin " + item.getPlugin().getId()); } // Shut the plugin down item.setState(SHUT_DOWN_STATE); firePluginUnloaded(item.getPlugin()); } } } /** * Checks, whether a plugin state change is allowed. * * @param item The item of the plugin, whichs state should be changed. * @param requiredState The state the plugin should have at the moment. * @param newState The state the plugin will have after changing * @throws TvBrowserException If the plugin already is in the new state or if * it is not in the required state. */ private void checkStateChange(PluginListItem item, int requiredState, int newState) throws TvBrowserException { if (item.getState() == newState) { throw new TvBrowserException(PluginProxyManager.class, "error.1", "The plugin {0} can not be set to {1}, because it already is {1}.", item.getPlugin().getInfo().getName(), getLocalizedStateName(newState)); } if (item.getState() != requiredState) { String[] params = { item.getPlugin().getInfo().getName(), getLocalizedStateName(newState), getLocalizedStateName(item.getState()), getLocalizedStateName(requiredState) }; throw new TvBrowserException(PluginProxyManager.class, "error.2", "The plugin {0} can not be set to {1}, because is currently {2} and not {3}.", params); } } /** * Gets the localized name of a state. * * @param state The state to get the localized name for. * @return The localized name for the given state. */ public static String getLocalizedStateName(int state) { if (state == SHUT_DOWN_STATE) { return mLocalizer.msg("state.shutDown", "shut down"); } else if (state == LOADED_STATE) { return mLocalizer.msg("state.loaded", "loaded"); } else if (state == ACTIVATED_STATE) { return mLocalizer.msg("state.activated", "activated"); } else { return mLocalizer.msg("state.unknown", "unknown ({0})", new Integer(state)); } } /** * Gets all plugins. * * @return All plugins. */ public PluginProxy[] getAllPlugins() { // NOTE: To be thread-safe, we copy the cached plugin array in a local // variable PluginProxy[] allPluginArr = mAllPluginCache; // Check whether the cache is already filled if (allPluginArr == null) { // The cache is empty -> We've got to fill it synchronized (mPluginList) { allPluginArr = new PluginProxy[mPluginList.size()]; for (int i = 0; i < mPluginList.size(); i++) { PluginListItem item = mPluginList.get(i); allPluginArr[i] = item.getPlugin(); } } // Cache the array mAllPluginCache = allPluginArr; } // Return only a copy so the array may be changed by the caller return allPluginArr.clone(); } /** * Gets all activated plugins. * * @return All activated plugins. */ public PluginProxy[] getActivatedPlugins() { // NOTE: To be thread-safe, we copy the cached plugin array in a local // variable PluginProxy[] activatedPluginArr = mActivatedPluginCache; // Check whether the cache is already filled if (activatedPluginArr == null) { // The cache is empty -> We've got to fill it // Create a list with all activated plugins ArrayList<AbstractPluginProxy> activatedPluginList = new ArrayList<AbstractPluginProxy>(); synchronized (mPluginList) { for (PluginListItem item : mPluginList) { if (item.getPlugin().isActivated()) { activatedPluginList.add(item.getPlugin()); } } } // Create an array from the list activatedPluginArr = new PluginProxy[activatedPluginList.size()]; activatedPluginList.toArray(activatedPluginArr); // Cache the array mActivatedPluginCache = activatedPluginArr; } // Return only a copy so the array may be changed by the caller return activatedPluginArr.clone(); } /** * Gets the IDs of all deactivated plugins. * * @return the IDs of all deactivated plugins. */ public String[] getDeactivatedPluginIds() { // Create a list with all deactivated plugin IDs ArrayList<String> deactivatedPluginIdList = new ArrayList<String>(); synchronized (mPluginList) { for (PluginListItem item : mPluginList) { if (!item.getPlugin().isActivated()) { deactivatedPluginIdList.add(item.getPlugin().getId()); } } } // Create an array from the list String[] deactivatedPluginIdArr = new String[deactivatedPluginIdList.size()]; deactivatedPluginIdList.toArray(deactivatedPluginIdArr); return deactivatedPluginIdArr; } /** * Gets the plugin with the given ID. * * @param pluginId The ID of the wanted plugin. * @param state The state the plugin must have. Pass <code>-1</code> if the * state does not matter. * @return The plugin with the given ID or <code>null</code> if no such * plugin exists or has the wrong state. */ private PluginProxy getPluginForId(String pluginId, int state) { synchronized (mPluginList) { if (pluginId == null) { return null; } PluginListItem item = mPluginMap.get(pluginId); if (item != null) { if ((state == -1) || (item.getState() == state)) { return item.getPlugin(); } else { // The plugin is present, but has the wrong state return null; } } // Nothing found return null; } } /** * Gets the plugin with the given ID. * * @param pluginId The ID of the wanted plugin. * @return The plugin with the given ID or <code>null</code> if no such * plugin exists. */ public PluginProxy getPluginForId(String pluginId) { return getPluginForId(pluginId, -1); } /** * Gets the activated plugin with the given ID. * * @param pluginId The ID of the wanted plugin. * @return The plugin with the given ID or <code>null</code> if no such * plugin exists or if the plugin is not activated. */ public PluginProxy getActivatedPluginForId(String pluginId) { return getPluginForId(pluginId, ACTIVATED_STATE); } /** * Gets a list item for the given plugin proxy. * * @param plugin The plugin to get the list item for. * @return The list item for the given plugin proxy. */ private PluginListItem getItemForPlugin(PluginProxy plugin) { synchronized (mPluginList) { for (PluginListItem item : mPluginList) { if (item.getPlugin() == plugin) { return item; } } } // Nothing fonnd mLog.warning("Unknown plugin: " + plugin.getId()); return null; } /** * Creates a context menu for the given program containing all plugins. * * @param program The program to create the context menu for * @return a context menu for the given program. */ public static JPopupMenu createPluginContextMenu(Program program) { return createPluginContextMenu(program, null); } /** * Creates a context menu for the given program containing all plugins. * * @param program The program to create the context menu for * @param menuIf The ContextMenuIf that wants to create the ContextMenu * @return a context menu for the given program. */ public static JPopupMenu createPluginContextMenu(Program program, ContextMenuIf menuIf) { JPopupMenu menu = new JPopupMenu(); JMenu menus = ContextMenuManager.getInstance().createContextMenuItems(menuIf, program, true); Component[] comps = menus.getMenuComponents(); for (Component component : comps) { menu.add(component); } return menu; } /** * Registers a PluginStateListener. * * @param listener The PluginStateListener to register */ public void addPluginStateListener(PluginStateListener listener) { synchronized (mPluginStateListenerList) { mPluginStateListenerList.add(listener); } } /** * Deregisters a PluginStateListener. * * @param listener The PluginStateListener to deregister */ public void removePluginStateListener(PluginStateListener listener) { synchronized (mPluginStateListenerList) { mPluginStateListenerList.remove(listener); } } /** * Tells all registered PluginStateListeners that a plugin was deactivated. * * @param plugin The deactivated plugin */ private void firePluginLoaded(PluginProxy plugin) { synchronized (mPluginStateListenerList) { for (PluginStateListener listener : mPluginStateListenerList) { try { listener.pluginLoaded(plugin); } catch (Throwable thr) { mLog.log(Level.WARNING, "Fireing event 'plugin loaded' failed", thr); } } } } /** * Tells all registered PluginStateListeners that a plugin was deactivated. * * @param plugin The deactivated plugin */ private void firePluginUnloaded(PluginProxy plugin) { synchronized (mPluginStateListenerList) { for (PluginStateListener listener : mPluginStateListenerList) { try { listener.pluginUnloaded(plugin); } catch (Throwable thr) { mLog.log(Level.WARNING, "Fireing event 'plugin unloaded' failed", thr); } } } } /** * Tells all registered PluginStateListeners that a plugin was deactivated. * * @param plugin The deactivated plugin */ private void firePluginActivated(PluginProxy plugin) { synchronized (mPluginStateListenerList) { for (PluginStateListener listener : mPluginStateListenerList) { try { listener.pluginActivated(plugin); } catch (Throwable thr) { mLog.log(Level.WARNING, "Fireing event 'plugin activated' failed", thr); } } } } /** * Tells all registered PluginStateListeners that a plugin was deactivated. * * @param plugin The deactivated plugin */ private void firePluginDeactivated(PluginProxy plugin, boolean log) { synchronized (mPluginStateListenerList) { for (PluginStateListener listener : mPluginStateListenerList) { try { listener.pluginDeactivated(plugin); } catch (Throwable thr) { if (log) { mLog.log(Level.WARNING, "Fireing event 'plugin deactivated' failed", thr); } } } } } /** * Calls for every active plugin the handleTvDataAdded(...) method, so the * plugin can react on the new data. * * @param newProg The added program * @see PluginProxy#handleTvDataAdded(ChannelDayProgram) */ private void fireTvDataAdded(MutableChannelDayProgram newProg) { synchronized (mPluginList) { for (PluginListItem item : mPluginList) { if (item.getPlugin().isActivated()) { item.getPlugin().handleTvDataAdded(newProg); } } } } /** * Calls for every active plugin the handleTvDataAdded(...) method, so the * plugin can react on the new data. * * @param newProg The added program * @see PluginProxy#handleTvDataAdded(ChannelDayProgram) */ private void fireTvDataAdded(ChannelDayProgram newProg) { synchronized (mPluginList) { for (PluginListItem item : mPluginList) { if (item.getPlugin().isActivated()) { item.getPlugin().handleTvDataAdded(newProg); } } } } /** * Calls for every subscribed plugin the handleTvDataDeleted(...) method, so * the plugin can react on the deleted data. * * @param deletedProg The deleted program * @see PluginProxy#handleTvDataDeleted(ChannelDayProgram) */ private void fireTvDataDeleted(ChannelDayProgram deletedProg) { synchronized (mPluginList) { for (PluginListItem item : mPluginList) { if (item.getPlugin().isActivated()) { item.getPlugin().handleTvDataDeleted(deletedProg); } } } } /** * Calls for every subscribed plugin the handleTvDataUpdateFinished() method, * so the plugin can react on the new data. * * @see PluginProxy#handleTvDataUpdateFinished() */ private void fireTvDataUpdateFinished() { synchronized (mPluginList) { for (PluginListItem item : mPluginList) { if (item.getPlugin().isActivated()) { item.getPlugin().handleTvDataUpdateFinished(); } } } } /** * Calls for every subscribed plugin the handleTvBrowserStartComplete() method, * so the plugin knows when the TV-Browser start is finished. * * @see PluginProxy#handleTvBrowserStartFinished() */ public void fireTvBrowserStartFinished() { synchronized(mPluginList) { ((PluginManagerImpl)PluginManagerImpl.getInstance()).handleTvBrowserStartFinished(); for (PluginListItem item : mPluginList) { AbstractPluginProxy plugin = item.getPlugin(); if (plugin.isActivated()) { fireTvBrowserStartFinished(plugin); if (plugin.hasArtificialPluginTree()) { int childCount = plugin.getArtificialRootNode().size(); // update all children of the artificial tree or remove the tree completely if (childCount > 0 && childCount < 100) { plugin.getArtificialRootNode().update(); } else { plugin.removeArtificialPluginTree(); } MainFrame.getInstance().updatePluginTree(); } } } } } public void fireTvBrowserStartFinished(PluginProxy plugin) { if (mStartFinishedPlugins.contains(plugin)) { return; } mStartFinishedPlugins.add(plugin); plugin.handleTvBrowserStartFinished(); } /** * A plugin in the plugin list */ private static class PluginListItem { /** The plugin */ private AbstractPluginProxy mPlugin; /** The state of the plugin */ private int mState; /** * Creates a new instance of PluginListItem. * * @param plugin The plugin of this list item */ public PluginListItem(AbstractPluginProxy plugin) { mPlugin = plugin; mState = LOADED_STATE; } /** * Gets the plugin. * * @return the plugin. */ public AbstractPluginProxy getPlugin() { return mPlugin; } /** * Sets the state of the plugin. * * @param state The new state. */ public void setState(int state) { mState = state; // Tell the plugin whether it is activated mPlugin.setActivated(state == ACTIVATED_STATE); } /** * Gets the state of the plugin. * * @return The state of the plugin. */ public int getState() { return mState; } } // inner class PluginListItem }

The table below shows all metrics for PluginProxyManager.java.

MetricValueDescription
BLOCKS165.00Number of blocks
BLOCK_COMMENT25.00Number of block comment lines
COMMENTS394.00Comment lines
COMMENT_DENSITY 0.97Comment density
COMPARISONS55.00Number of comparison operators
CYCLOMATIC114.00Cyclomatic complexity
DECL_COMMENTS59.00Comments in declarations
DOC_COMMENT293.00Number of javadoc comment lines
ELOC407.00Effective lines of code
EXEC_COMMENTS70.00Comments in executable code
EXITS119.00Procedure exits
FUNCTIONS50.00Number of function declarations
HALSTEAD_DIFFICULTY67.32Halstead difficulty
HALSTEAD_EFFORT 0.00Halstead effort
INTERFACE_COMPLEXITY114.00Interface complexity
JAVA0001 0.00JAVA0001 Package name does not contain only lower case letters
JAVA0002 1.00JAVA0002 Package name does not begin with a top level domain name or country code
JAVA0003 0.00JAVA0003 Minimize use of on-demand (.*) imports
JAVA0004 0.00JAVA0004 Unnecessary import from java.lang
JAVA0005 1.00JAVA0005 Imports not in specified order
JAVA0006 0.00JAVA0006 Empty finally block
JAVA0007 0.00JAVA0007 Should not declare public field
JAVA0008 0.00JAVA0008 Empty catch block
JAVA0009 0.00JAVA0009 Protected member in final class
JAVA0010 0.00JAVA0010 Non-instantiable class does not contain a non-private static member
JAVA0011 0.00JAVA0011 Abstract class does not contain an abstract method
JAVA0012 0.00JAVA0012 Non-constructor method with same name as declaring class
JAVA0013 0.00JAVA0013 Non-blank final field is not static
JAVA0014 0.00JAVA0014 Class with only static members has non-private constructor
JAVA0015 0.00JAVA0015 Package class contains public nested type
JAVA0016 0.00JAVA0016 Abstract class contains public constructor
JAVA0017 0.00JAVA0017 Class name does not have required form
JAVA0018 0.00JAVA0018 Method name does not have required form
JAVA0019 0.00JAVA0019 Interface name does not have required form
JAVA0020 0.00JAVA0020 Field name does not have required form
JAVA0021 0.00JAVA0021 Interface method name does not have required form
JAVA0022 0.00JAVA0022 Static final field name does not have required form
JAVA0023 0.00JAVA0023 Empty finalize method
JAVA0024 0.00JAVA0024 Empty class
JAVA0025 0.00JAVA0025 Method override is empty
JAVA0026 0.00JAVA0026 Finalize method with parameters
JAVA0029 0.00JAVA0029 Private method not used
JAVA0030 0.00JAVA0030 Private field not used
JAVA0031 0.00JAVA0031 Case statement not properly closed
JAVA0032 0.00JAVA0032 Switch statement missing default
JAVA0033 0.00JAVA0033 default: not last case in switch statement
JAVA0034 0.00JAVA0034 Missing braces in if statement
JAVA0035 0.00JAVA0035 Missing braces in for statement
JAVA0036 0.00JAVA0036 Missing braces in while statement
JAVA0038 0.00JAVA0038 Non-case label in switch statement
JAVA0039 0.00JAVA0039 Break statement with label
JAVA0040 0.00JAVA0040 Switch statement contains N cases (maximum: M)
JAVA0041 0.00JAVA0041 Nested synchronized block
JAVA0042 0.00JAVA0042 Empty synchronized statement
JAVA0043 0.00JAVA0043 Inner class does not use outer class
JAVA0044 0.00JAVA0044 Serializable class with no instance variables
JAVA0045 0.00JAVA0045 Serializable class with only transient fields
JAVA0046 0.00JAVA0046 Name of class not derived from Exception ends with 'Exception'
JAVA0047 0.00JAVA0047 Serializable class derives from invalid base class
JAVA0048 0.00JAVA0048 Name of class derived from Exception does not end with 'Exception'
JAVA0049 3.00JAVA0049 Nested block at depth N (maximum: M)
JAVA0050 0.00JAVA0050 Class derives from java.lang.Error
JAVA0051 0.00JAVA0051 Class derives from java.lang.RuntimeException
JAVA0052 0.00JAVA0052 Class derives from java.lang.Throwable
JAVA0053 0.00JAVA0053 Unused label
JAVA0054 0.00JAVA0054 Inheritance depth N exceeds maximum M
JAVA0055 0.00JAVA0055 Class should be interface
JAVA0056 0.00JAVA0056 Unnecessary abstract modifier for interface or annotation
JAVA0057 0.00JAVA0057 Unnecessary default constructor
JAVA0058 0.00JAVA0058 Constructor calls super()
JAVA0059 0.00JAVA0059 Method override only calls super()
JAVA0061 0.00JAVA0061 Inaccessible member in anonymous class
JAVA0062 0.00JAVA0062 Public class missing public member or protected constructor
JAVA0063 0.00JAVA0063 Identifier name should not contain '$'
JAVA0064 0.00JAVA0064 N variations of identifier name (maximum: M)
JAVA0065 0.00JAVA0065 Unnecessary final modifier for method in final class
JAVA0066 0.00JAVA0066 Unnecessary modifier for interface nested type
JAVA0067 0.00JAVA0067 Array descriptor on identifier name
JAVA0068 0.00JAVA0068 Modifiers not declared in recommended order
JAVA0071 0.00JAVA0071 Strings compared with ==
JAVA0073 0.00JAVA0073 Integer division in floating-point context
JAVA0074 0.00JAVA0074 Use of Object.notify()
JAVA0075 0.00JAVA0075 Method parameter hides field
JAVA0076 0.00JAVA0076 Use of magic number
JAVA0077 0.00JAVA0077 Private field not used in declaring class
JAVA0078 0.00JAVA0078 Floating point values compared with ==
JAVA0079 0.00JAVA0079 Use of instance to reference static member
JAVA0080 0.00JAVA0080 Import declaration not used
JAVA0081 0.00JAVA0081 Boolean literal in comparison
JAVA0082 0.00JAVA0082 Unnecessary widening cast
JAVA0083 0.00JAVA0083 Unnecessary instanceof test
JAVA0084 0.00JAVA0084 Should use compound assignment operator
JAVA0085 0.00JAVA0085 Use of sun.* class
JAVA0087 0.00JAVA0087 Use of Thread.sleep()
JAVA0089 0.00JAVA0089 Use of restricted package
JAVA0092 0.00JAVA0092 Use of restricted type
JAVA0093 0.00JAVA0093 Redundant assignment
JAVA0094 0.00JAVA0094 Field hides a superclass field
JAVA0095 0.00JAVA0095 Uninitialized private field
JAVA0096 0.00JAVA0096 Field in nested class hides outer field
JAVA0098 0.00JAVA0098 Minimize use of implicit field initializers
JAVA0100 0.00JAVA0100 Class contains N non-final fields (maximum: M)
JAVA0101 0.00JAVA0101 Unnecessary modifier for field in interface
JAVA0102 0.00JAVA0102 Last statement in finalize() not super.finalize()
JAVA0103 0.00JAVA0103 Explicit call to finalize()
JAVA0104 0.00JAVA0104 finalize() only calls super.finalize()
JAVA0105 0.00JAVA0105 Duplicate import declaration
JAVA0106 0.00JAVA0106 Unnecessary import from current package
JAVA0108 3.00JAVA0108 Incorrect javadoc: no @param tag for 'parameter'
JAVA0109 0.00JAVA0109 Incorrect javadoc: no parameter 'parameter'
JAVA0110 0.00JAVA0110 Incorrect javadoc: no @return tag
JAVA0111 0.00JAVA0111 Incorrect javadoc: @return tag for void method
JAVA0112 0.00JAVA0112 Incorrect javadoc: no exception 'exception' in throws
JAVA0113 0.00JAVA0113 Incorrect javadoc: no @author tag
JAVA0114 1.00JAVA0114 Incorrect javadoc: no @version tag
JAVA0115 1.00JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception'
JAVA0116 0.00JAVA0116 Missing javadoc: field 'field'
JAVA0117 2.00JAVA0117 Missing javadoc: method 'method'
JAVA0118 0.00JAVA0118 Missing javadoc: type 'type'
JAVA0119 0.00JAVA0119 Control variable changed within body of for loop
JAVA0123 0.00JAVA0123 Use all three components of for loop
JAVA0125 0.00JAVA0125 Continue statement with label
JAVA0126 0.00JAVA0126 Method declares unchecked exception in throws
JAVA0128 1.00JAVA0128 Public constructor in non-public class
JAVA0130 2.00JAVA0130 Non-static method does not use instance fields
JAVA0131 0.00JAVA0131 Compatible method does not override base
JAVA0132 1.00JAVA0132 Method overload with compatible signature
JAVA0133 0.00JAVA0133 Non-synchronized method overrides synchronized method
JAVA0135 0.00JAVA0135 Only one of Object.equals and Object.hashCode defined: missing 'method'
JAVA0136 1.00JAVA0136 N methods defined in class (maximum: M)
JAVA0137 0.00JAVA0137 Non-abstract class missing constructor
JAVA0138 0.00JAVA0138 N parameters defined for method (maximum: M)
JAVA0139 0.00JAVA0139 Definition of main other than public static void main(java.lang.String[])
JAVA0141 0.00JAVA0141 Unnecessary modifier for method in interface
JAVA0143 0.00JAVA0143 Synchronized method
JAVA0144 0.00JAVA0144 Line exceeds maximum M characters
JAVA0145 0.00JAVA0145 Tab character used in source file
JAVA0150 0.00JAVA0150 java.lang.Error (or subclass) thrown
JAVA0153 0.00JAVA0153 Inefficient conversion of integer to string
JAVA0159 0.00JAVA0159 Inefficient conversion of string to integer
JAVA0160 1.00JAVA0160 Method does not throw specified exception
JAVA0161 0.00JAVA0161 Conditional wait() not in loop
JAVA0163 0.00JAVA0163 Empty statement
JAVA0165 0.00JAVA0165 Conflicting return statement in finally block
JAVA0166 5.00JAVA0166 Generic exception caught
JAVA0167 0.00JAVA0167 ThreadDeath not rethrown
JAVA0169 0.00JAVA0169 Unnecessary catch block: exception 'exception'
JAVA0170 4.00JAVA0170 Caught exception not derived from java.lang.Exception
JAVA0171 0.00JAVA0171 Unused local variable
JAVA0173 0.00JAVA0173 Unused method parameter
JAVA0174 0.00JAVA0174 Assigned local variable never used
JAVA0175 0.00JAVA0175 Successive assignment to variable
JAVA0176 0.00JAVA0176 Local variable name does not have required form
JAVA0177 0.00JAVA0177 Variable declaration missing initializer
JAVA0179 0.00JAVA0179 Local variable hides visible field
JAVA0233 0.00JAVA0233 Definition of serialVersionUID other than 'private static final long serialVersionUID'
JAVA0234 0.00JAVA0234 Class is Serializable but does not define serialVersionUID
JAVA0235 0.00JAVA0235 Class defines serialVersionUID but does not implement Serializable
JAVA0236 0.00JAVA0236 Attempt to clone an object which does not implement Cloneable
JAVA0237 0.00JAVA0237 Class implements Cloneable but does not have public clone method
JAVA0238 0.00JAVA0238 Clone method does not call super.clone()
JAVA0239 0.00JAVA0239 Class declares 'readObject' or 'writeObject' but does not implement Serializable
JAVA0240 0.00JAVA0240 Serializable class which declares readObject or writeObject but not both
JAVA0241 0.00JAVA0241 'readObject' or 'writeObject' should be declared private in Serializable class
JAVA0242 0.00JAVA0242 Transient field in non-Serializable class
JAVA0243 0.00JAVA0243 'readResolve' or 'writeReplace' should be declared private or protected
JAVA0244 0.00JAVA0244 Field or method name in subclass differs only by case from inherited field or method
JAVA0245 0.00JAVA0245 JUnit TestCase with non-trivial constructor
JAVA0246 0.00JAVA0246 JUnit assertXXX statement missing message parameter
JAVA0247 0.00JAVA0247 JUnit 'setUp()' and 'tearDown()' should call super method
JAVA0248 0.00JAVA0248 JUnit method 'setUp' or 'tearDown' with incorrect signature
JAVA0249 0.00JAVA0249 JUnit TestCase 'suite()' should be declared static
JAVA0250 0.00JAVA0250 JUnit TestCase declares testXXX method with incorrect signature
JAVA0251 0.00JAVA0251 Use '%n' for line breaks in printf/format for platform independence
JAVA0252 0.00JAVA0252 'enum' is a Java 1.5 reserved word
JAVA0253 0.00JAVA0253 Not all enum constants consumed in switch statement
JAVA0254 0.00JAVA0254 Use enhanced for loop construct instead of Iterator
JAVA0255 0.00JAVA0255 Result of method invocation not used
JAVA0256 0.00JAVA0256 Assignment of external collection/array to field
JAVA0257 0.00JAVA0257 Use of 'Constant Interface' anti-pattern
JAVA0258 0.00JAVA0258 Implement Iterable for foreach compatibility
JAVA0259 0.00JAVA0259 Return of collection/array field
JAVA0260 0.00JAVA0260 Use 'enum' instead of Enumerated Type pattern
JAVA0261 0.00JAVA0261 Use specialized Enum collection types
JAVA0262 0.00JAVA0262 Use of char in integer context
JAVA0263 0.00JAVA0263 Long literal ends with 'l' instead of 'L'
JAVA0264 0.00JAVA0264 Integer math in long context - check for overflow
JAVA0265 0.00JAVA0265 Use of Throwable.printStackTrace()
JAVA0266 0.00JAVA0266 Use of System.out
JAVA0267 0.00JAVA0267 Use of System.err
JAVA0269 0.00JAVA0269 Contents of StringBuffer never used
JAVA0270 0.00JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array
JAVA0271 0.00JAVA0271 Minimize use of on-demand (.*) static imports
JAVA0272 0.00JAVA0272 Thread.run() called
JAVA0273 0.00JAVA0273 Non-final derivative of Thread calls start() in constructor
JAVA0274 0.00JAVA0274 Serializable class has a synchronized readObject()
JAVA0275 0.00JAVA0275 Serializable class has a synchronized writeObject() and no other synchronized methods
JAVA0276 0.00JAVA0276 Unnecessary use of String constructor
JAVA0277 0.00JAVA0277 Iterator.next() implementation does not throw NoSuchElementException
JAVA0278 0.00JAVA0278 Unnecessary use of Boolean constructor
JAVA0279 0.00JAVA0279 Serialization method readObject or readObjectNoData calls an overridable method
JAVA0280 0.00JAVA0280 IllegalMonitorStateException caught
JAVA0281 0.00JAVA0281 Iterator.next() not called in loop
JAVA0282 0.00JAVA0282 Call to Iterator.next() in loop which does not test Iterator.hasNext()
JAVA0283 0.00JAVA0283 Control variable not updated in loop body
JAVA0284 0.00JAVA0284 Explicit garbage collection
JAVA0285 0.00JAVA0285 Dereference of potentially null variable
JAVA0286 0.00JAVA0286 Dereference of null variable
JAVA0287 0.00JAVA0287 Unnecessary null check
JAVA0288 0.00JAVA0288 Inconsistent null check
LINES1092.00Number of lines in the source file
LINE_COMMENT76.00Number of line comments
LOC559.00Lines of code
LOGICAL_LINES237.00Number of statements
LOOPS 3.00Number of loops
NEST_DEPTH 6.00Maximum nesting depth
OPERANDS1134.00Number of operands
OPERATORS2375.00Number of operators
PARAMS44.00Number of formal parameter declarations
PROGRAM_LENGTH3509.00Halstead program length
PROGRAM_VOCAB424.00Halstead program vocabulary
PROGRAM_VOLUME 0.00Halstead program volume
RETURNS70.00Number of return points from functions
SIZE33299.00Size of the file in bytes
UNIQUE_OPERANDS379.00Number of unique operands
UNIQUE_OPERATORS45.00Number of unique operators
WHITESPACE139.00Number of whitespace lines