Java tutorial
/* * Copyright 2013 Red Hat Inc. and/or its affiliates and other contributors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * http://www.apache.org/licenses/LICENSE-2.0 * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.jboss.as.console.client; import com.allen_sauer.gwt.log.client.Log; import com.google.gwt.core.client.EntryPoint; import com.google.gwt.core.client.GWT; import com.google.gwt.core.client.RunAsyncCallback; import com.google.gwt.core.client.Scheduler; import com.google.gwt.event.shared.EventBus; import com.google.gwt.user.client.Command; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.rpc.AsyncCallback; import com.google.gwt.user.client.ui.HTMLPanel; import com.google.gwt.user.client.ui.RootLayoutPanel; import com.google.gwt.user.client.ui.Widget; import com.gwtplatform.mvp.client.DelayedBindRegistry; import com.gwtplatform.mvp.client.proxy.PlaceManager; import org.jboss.as.console.client.core.BootstrapContext; import org.jboss.as.console.client.core.LoadingPanel; import org.jboss.as.console.client.core.UIConstants; import org.jboss.as.console.client.core.UIDebugConstants; import org.jboss.as.console.client.core.UIMessages; import org.jboss.as.console.client.core.bootstrap.BootstrapProcess; import org.jboss.as.console.client.core.bootstrap.ChoseProcessor; import org.jboss.as.console.client.core.bootstrap.EagerLoadProfiles; import org.jboss.as.console.client.core.bootstrap.ExecutionMode; import org.jboss.as.console.client.core.bootstrap.LoadMainApp; import org.jboss.as.console.client.core.bootstrap.RegisterSubsystems; import org.jboss.as.console.client.core.bootstrap.RemoveLoadingPanel; import org.jboss.as.console.client.core.gin.Composite; import org.jboss.as.console.client.core.gin.GinjectorSingleton; import org.jboss.as.console.client.core.message.Message; import org.jboss.as.console.client.core.message.MessageCenter; import org.jboss.as.console.client.plugins.SubsystemRegistry; import org.jboss.as.console.client.shared.help.HelpSystem; import java.util.EnumSet; /** * Main application entry point. * Executes a two phased init process: * <ol> * <li>Identify management model (standalone vs. domain) * <li>Load main application * </ol> * * @author Heiko Braun */ public class Console implements EntryPoint { public final static Composite MODULES = GWT.<GinjectorSingleton>create(GinjectorSingleton.class).getCoreUI(); public final static UIConstants CONSTANTS = GWT.create(UIConstants.class); public final static UIDebugConstants DEBUG_CONSTANTS = GWT.create(UIDebugConstants.class); public final static UIMessages MESSAGES = GWT.create(UIMessages.class); public void onModuleLoad() { // Defer all application initialisation code to onModuleLoad2() so that the // UncaughtExceptionHandler can catch any unexpected exceptions. Log.setUncaughtExceptionHandler(); Scheduler.get().scheduleDeferred(new Scheduler.ScheduledCommand() { @Override public void execute() { onModuleLoad2(); } }); } public void onModuleLoad2() { // load console css bundle ConsoleResources.INSTANCE.css().ensureInjected(); // display the loading panel final Widget loadingPanel = new LoadingPanel().asWidget(); RootLayoutPanel.get().add(loadingPanel); GWT.runAsync(new RunAsyncCallback() { public void onFailure(Throwable caught) { Window.alert("Failed to load application components!"); } public void onSuccess() { DelayedBindRegistry.bind(MODULES); // ordered bootstrap final BootstrapProcess bootstrap = new BootstrapProcess(); bootstrap.addHook(new ExecutionMode(MODULES.getBootstrapContext(), MODULES.getDispatchAsync())); bootstrap.addHook(new RegisterSubsystems(MODULES.getSubsystemRegistry())); bootstrap.addHook(new ChoseProcessor(MODULES.getBootstrapContext())); bootstrap.addHook( new EagerLoadProfiles(MODULES.getProfileStore(), MODULES.getCurrentSelectedProfile())); bootstrap.addHook(new RemoveLoadingPanel(loadingPanel)); bootstrap.addHook(new LoadMainApp(MODULES.getBootstrapContext(), MODULES.getPlaceManager(), MODULES.getTokenFormatter())); // viz can be loaded in background ... //bootstrap.addHook(new LoadGoogleViz()); bootstrap.execute(new AsyncCallback<Boolean>() { @Override public void onFailure(Throwable caught) { error("Bootstrap failed", caught.getMessage()); } @Override public void onSuccess(Boolean wasSuccessfull) { if (!wasSuccessfull) { // currently we only deal with authentication errors RootLayoutPanel.get().remove(loadingPanel); String cause = ""; if (MODULES.getBootstrapContext().getLastError() != null) cause = MODULES.getBootstrapContext().getLastError().getMessage(); HTMLPanel explanation = new HTMLPanel( "<center><div style='padding-top:150px;'><h2>The web console could not be loaded.</h2>" + cause + "</div></center>"); RootLayoutPanel.get().add(explanation); } } }); } }); } public static void info(String message) { getMessageCenter().notify(new Message(message, Message.Severity.Info)); } public static void error(String message) { getMessageCenter().notify(new Message(message, Message.Severity.Error)); } public static void error(String message, String detail) { getMessageCenter().notify(new Message(message, detail, Message.Severity.Error)); } public static void warning(String message) { getMessageCenter().notify(new Message(message, Message.Severity.Warning)); } public static void warning(String message, boolean sticky) { Message msg = sticky ? new Message(message, Message.Severity.Warning, EnumSet.of(Message.Option.Sticky)) : new Message(message, Message.Severity.Warning); getMessageCenter().notify(msg); } public static void warning(String message, String detail, boolean sticky) { Message msg = sticky ? new Message(message, detail, Message.Severity.Warning, EnumSet.of(Message.Option.Sticky)) : new Message(message, detail, Message.Severity.Warning); getMessageCenter().notify(msg); } public static void warning(String message, String detail) { getMessageCenter().notify(new Message(message, detail, Message.Severity.Warning)); } public static void schedule(final Command cmd) { Scheduler.get().scheduleDeferred(new Scheduler.ScheduledCommand() { @Override public void execute() { cmd.execute(); } }); } public static EventBus getEventBus() { return MODULES.getEventBus(); } public static MessageCenter getMessageCenter() { return MODULES.getMessageCenter(); } public static PlaceManager getPlaceManager() { return MODULES.getPlaceManager(); } public static BootstrapContext getBootstrapContext() { return MODULES.getBootstrapContext(); } public static HelpSystem getHelpSystem() { return MODULES.getHelpSystem(); } @Deprecated public static native boolean visAPILoaded() /*-{ if ($wnd['google'] && $wnd.google['load']) { return true; } return false; }-*/; public static SubsystemRegistry getSubsystemRegistry() { return MODULES.getSubsystemRegistry(); } }