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- /*
- * Copyright (c) 2006-2017 DMDirc Developers
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
- * documentation files (the "Software"), to deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
- * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
- * OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
- package com.dmdirc.addons.debug.commands;
-
- import com.dmdirc.CustomWindow;
- import com.dmdirc.addons.debug.Debug;
- import com.dmdirc.addons.debug.DebugCommand;
- import com.dmdirc.commandparser.CommandArguments;
- import com.dmdirc.commandparser.commands.context.CommandContext;
- import com.dmdirc.config.GlobalConfig;
- import com.dmdirc.events.ClientLineAddedEvent;
- import com.dmdirc.events.CommandOutputEvent;
- import com.dmdirc.events.eventbus.BaseEvent;
- import com.dmdirc.events.DisplayableEvent;
- import com.dmdirc.events.FrameClosingEvent;
- import com.dmdirc.events.eventbus.EventBus;
- import com.dmdirc.interfaces.WindowModel;
- import com.dmdirc.interfaces.config.AggregateConfigProvider;
- import com.dmdirc.ui.WindowManager;
- import com.dmdirc.ui.messages.BackBufferFactory;
- import com.dmdirc.ui.messages.IRCControlCodes;
- import java.lang.reflect.Method;
- import javax.annotation.Nonnull;
- import javax.inject.Inject;
- import javax.inject.Provider;
- import net.engio.mbassy.listener.Handler;
- import net.engio.mbassy.listener.Listener;
- import net.engio.mbassy.listener.References;
-
- /**
- * Displays events passed on an event bus.
- */
- public class EventBusViewer extends DebugCommand {
-
- private final AggregateConfigProvider globalConfig;
- private final WindowManager windowManager;
- private final EventBus globalEventBus;
- private final BackBufferFactory backBufferFactory;
-
- /**
- * Creates a new instance of the command.
- */
- @Inject
- public EventBusViewer(
- final Provider<Debug> commandProvider,
- @GlobalConfig final AggregateConfigProvider globalConfig,
- final WindowManager windowManager,
- final EventBus globalEventBus,
- final BackBufferFactory backBufferFactory) {
- super(commandProvider);
- this.globalConfig = globalConfig;
- this.windowManager = windowManager;
- this.globalEventBus = globalEventBus;
- this.backBufferFactory = backBufferFactory;
- }
-
- @Override
- public String getName() {
- return "eventbus";
- }
-
- @Override
- public String getUsage() {
- return "[--global] - Shows events being sent on an event bus";
- }
-
- @Override
- public void execute(@Nonnull final WindowModel origin,
- final CommandArguments args, final CommandContext context) {
- final boolean isGlobal = args.getArguments().length > 0
- && "--global".equals(args.getArguments()[0]);
-
- final CustomWindow window;
- if (isGlobal) {
- window = new CustomWindow("Event bus", "Event bus", globalConfig,
- globalEventBus, backBufferFactory);
- windowManager.addWindow(window);
- } else {
- window = new CustomWindow("Event bus", "Event bus", origin, backBufferFactory);
- windowManager.addWindow(origin, window);
- }
-
- final EventBus eventBus = isGlobal ? globalEventBus : origin.getEventBus();
- final WindowUpdater updater = new WindowUpdater(eventBus, window);
- eventBus.subscribe(updater);
- }
-
- /**
- * Updates a custom window with details of each event received on an event bus.
- */
- @Listener(references = References.Strong)
- private static class WindowUpdater {
-
- private final EventBus eventBus;
- private final WindowModel target;
-
- WindowUpdater(final EventBus eventBus, final WindowModel target) {
- this.eventBus = eventBus;
- this.target = target;
- }
-
- @Handler
- public void handleFrameClosing(final FrameClosingEvent event) {
- if (event.getSource().equals(target)) {
- eventBus.unsubscribe(this);
- }
- }
-
- @Handler
- public void handleEvent(final BaseEvent event) {
- if (event instanceof ClientLineAddedEvent
- && ((ClientLineAddedEvent) event).getFrameContainer() == target
- || event instanceof CommandOutputEvent
- && ((DisplayableEvent) event).getSource() == target) {
- // Don't add a line every time we add a line to our output window.
- // Things will explode otherwise.
- return;
- }
-
- final StringBuilder output = new StringBuilder();
- output.append(IRCControlCodes.BOLD)
- .append(event.getClass().getSimpleName())
- .append(IRCControlCodes.BOLD);
-
- for (Method method : event.getClass().getMethods()) {
- if (method.getName().startsWith("get") && method.getParameterTypes().length == 0) {
- try {
- output.append(' ')
- .append(IRCControlCodes.UNDERLINE)
- .append(method.getName().substring(3))
- .append(IRCControlCodes.UNDERLINE)
- .append('=')
- .append(method.invoke(event));
- } catch (ReflectiveOperationException ex) {
- // Ignore.
- }
- }
- }
-
- target.getEventBus().publishAsync(new CommandOutputEvent(target, output.toString()));
- }
-
- }
- }
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