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JavaPlugin.java
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JavaPlugin.java
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/*******************************************************************************
* Copyright (c) 2000, 2021 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jdt.internal.ui;
import java.io.IOException;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.Set;
import java.util.StringTokenizer;
import java.util.stream.Collectors;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
import org.osgi.framework.ServiceRegistration;
import org.osgi.service.packageadmin.PackageAdmin;
import org.osgi.service.prefs.BackingStoreException;
import org.eclipse.osgi.service.debug.DebugOptions;
import org.eclipse.osgi.service.debug.DebugOptionsListener;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.MultiStatus;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.preferences.IEclipsePreferences;
import org.eclipse.core.runtime.preferences.InstanceScope;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IWorkspace;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.jface.action.GroupMarker;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.Separator;
import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.resource.ImageRegistry;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.text.templates.ContextTypeRegistry;
import org.eclipse.jface.text.templates.TemplateContextType;
import org.eclipse.jface.text.templates.TemplateVariableResolver;
import org.eclipse.jface.text.templates.persistence.TemplateStore;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkingSet;
import org.eclipse.ui.IWorkingSetManager;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.forms.FormColors;
import org.eclipse.ui.forms.widgets.FormToolkit;
import org.eclipse.ui.navigator.ICommonMenuConstants;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.eclipse.ui.themes.IThemeManager;
import org.eclipse.ui.texteditor.AbstractDecoratedTextEditorPreferenceConstants;
import org.eclipse.ui.texteditor.ChainedPreferenceStore;
import org.eclipse.ui.texteditor.ConfigurationElementSorter;
import org.eclipse.ui.texteditor.IDocumentProvider;
import org.eclipse.ui.editors.text.EditorsUI;
import org.eclipse.ui.editors.text.templates.ContributionContextTypeRegistry;
import org.eclipse.ui.editors.text.templates.ContributionTemplateStore;
import org.eclipse.jdt.core.IBuffer;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.WorkingCopyOwner;
import org.eclipse.jdt.core.manipulation.JavaManipulation;
import org.eclipse.jdt.internal.core.manipulation.CodeTemplateContextType;
import org.eclipse.jdt.internal.core.manipulation.JavaManipulationPlugin;
import org.eclipse.jdt.internal.corext.callhierarchy.MethodWrapper;
import org.eclipse.jdt.internal.corext.callhierarchy.MethodWrapperDynamic;
import org.eclipse.jdt.internal.corext.fix.CleanUpRegistry;
import org.eclipse.jdt.internal.corext.template.java.AbstractJavaContextType;
import org.eclipse.jdt.internal.corext.template.java.JavaContextType;
import org.eclipse.jdt.internal.corext.template.java.JavaPostfixContextType;
import org.eclipse.jdt.internal.corext.template.java.SWTContextType;
import org.eclipse.jdt.internal.corext.util.OpenTypeHistory;
import org.eclipse.jdt.internal.corext.util.QualifiedTypeNameHistory;
import org.eclipse.jdt.internal.corext.util.TypeFilter;
import org.eclipse.jdt.ui.IContextMenuConstants;
import org.eclipse.jdt.ui.JavaUI;
import org.eclipse.jdt.ui.PreferenceConstants;
import org.eclipse.jdt.ui.text.JavaTextTools;
import org.eclipse.jdt.internal.ui.javaeditor.ASTProvider;
import org.eclipse.jdt.internal.ui.javaeditor.ClassFileDocumentProvider;
import org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitDocumentProvider;
import org.eclipse.jdt.internal.ui.javaeditor.DocumentAdapter;
import org.eclipse.jdt.internal.ui.javaeditor.ICompilationUnitDocumentProvider;
import org.eclipse.jdt.internal.ui.javaeditor.WorkingCopyManager;
import org.eclipse.jdt.internal.ui.javaeditor.saveparticipant.SaveParticipantRegistry;
import org.eclipse.jdt.internal.ui.preferences.MembersOrderPreferenceCache;
import org.eclipse.jdt.internal.ui.preferences.formatter.FormatterProfileStore;
import org.eclipse.jdt.internal.ui.propertiesfileeditor.PropertiesFileDocumentProvider;
import org.eclipse.jdt.internal.ui.text.PreferencesAdapter;
import org.eclipse.jdt.internal.ui.text.folding.JavaFoldingStructureProviderRegistry;
import org.eclipse.jdt.internal.ui.text.java.ContentAssistHistory;
import org.eclipse.jdt.internal.ui.text.java.hover.JavaEditorTextHoverDescriptor;
import org.eclipse.jdt.internal.ui.text.spelling.SpellCheckEngine;
import org.eclipse.jdt.internal.ui.viewsupport.ImageDescriptorRegistry;
import org.eclipse.jdt.internal.ui.viewsupport.ImagesOnFileSystemRegistry;
import org.eclipse.jdt.internal.ui.viewsupport.ProblemMarkerManager;
import org.eclipse.jdt.internal.ui.wizards.buildpaths.ClasspathAttributeConfigurationDescriptors;
import org.eclipse.jdt.internal.ui.workingsets.DynamicSourcesWorkingSetUpdater;
import org.eclipse.jdt.internal.ui.workingsets.IWorkingSetIDs;
import org.eclipse.jdt.internal.ui.workingsets.WorkingSetMessages;
/**
* Represents the java plug-in. It provides a series of convenience methods such as
* access to the workbench, keeps track of elements shared by all editors and viewers
* of the plug-in such as document providers and find-replace-dialogs.
*/
public class JavaPlugin extends AbstractUIPlugin implements DebugOptionsListener {
/**
* The key to store customized templates.
* @since 3.0
*/
private static final String TEMPLATES_KEY= "org.eclipse.jdt.ui.text.custom_templates"; //$NON-NLS-1$
/**
* The key to store customized code templates.
* @since 3.0
*/
private static final String CODE_TEMPLATES_KEY= "org.eclipse.jdt.ui.text.custom_code_templates"; //$NON-NLS-1$
public static boolean DEBUG_AST_PROVIDER;
public static boolean DEBUG_BREADCRUMB_ITEM_DROP_DOWN;
public static boolean DEBUG_RESULT_COLLECTOR;
private static JavaPlugin fgJavaPlugin;
private static LinkedHashMap<String, Long> fgRepeatedMessages= new LinkedHashMap<>(20, 0.75f, true) {
private static final long serialVersionUID= 1L;
@Override
protected boolean removeEldestEntry(java.util.Map.Entry<String, Long> eldest) {
return size() >= 20;
}
};
/**
* The template context type registry for the java editor.
* @since 3.0
*/
private volatile ContextTypeRegistry fContextTypeRegistry;
/**
* The code template context type registry for the java editor.
* @since 3.0
*/
private ContextTypeRegistry fCodeTemplateContextTypeRegistry;
/**
* The template store for the java editor.
* @since 3.0
*/
private volatile TemplateStore fTemplateStore;
/**
* The coded template store for the java editor.
* @since 3.0
*/
private TemplateStore fCodeTemplateStore;
private volatile WorkingCopyManager fWorkingCopyManager;
private static final String CODE_ASSIST_MIGRATED= "code_assist_migrated"; //$NON-NLS-1$
private static final String TYPEFILTER_MIGRATED= "typefilter_migrated_2"; //$NON-NLS-1$
/**
* @deprecated to avoid deprecation warning
*/
@Deprecated
private org.eclipse.jdt.core.IBufferFactory fBufferFactory;
private volatile ICompilationUnitDocumentProvider fCompilationUnitDocumentProvider;
private volatile ClassFileDocumentProvider fClassFileDocumentProvider;
private volatile JavaTextTools fJavaTextTools;
private volatile ProblemMarkerManager fProblemMarkerManager;
private volatile ImageDescriptorRegistry fImageDescriptorRegistry;
private volatile MembersOrderPreferenceCache fMembersOrderPreferenceCache;
private volatile JavaEditorTextHoverDescriptor[] fJavaEditorTextHoverDescriptors;
/**
* The AST provider.
* @since 3.0
*/
private volatile ASTProvider fASTProvider;
/**
* The combined preference store.
* @since 3.0
*/
private IPreferenceStore fCombinedPreferenceStore;
/**
* The extension point registry for the <code>org.eclipse.jdt.ui.javaFoldingStructureProvider</code>
* extension point.
*
* @since 3.0
*/
private volatile JavaFoldingStructureProviderRegistry fFoldingStructureProviderRegistry;
/**
* The shared Java properties file document provider.
* @since 3.1
*/
private volatile IDocumentProvider fPropertiesFileDocumentProvider;
/**
* Content assist history.
* @since 3.2
*/
private ContentAssistHistory fContentAssistHistory;
/**
* The save participant registry.
* @since 3.3
*/
private volatile SaveParticipantRegistry fSaveParticipantRegistry;
/**
* The clean up registry
* @since 3.4
*/
private volatile CleanUpRegistry fCleanUpRegistry;
/**
* The descriptors from the 'classpathAttributeConfiguration' extension point.
* @since 3.3
*/
private volatile ClasspathAttributeConfigurationDescriptors fClasspathAttributeConfigurationDescriptors;
private FormToolkit fDialogsFormToolkit;
private volatile ImagesOnFileSystemRegistry fImagesOnFSRegistry;
/**
* Theme listener.
* @since 3.3
*/
private IPropertyChangeListener fThemeListener;
private BundleContext fBundleContext;
private ServiceRegistration<DebugOptionsListener> fDebugRegistration;
public static JavaPlugin getDefault() {
return fgJavaPlugin;
}
public static IWorkspace getWorkspace() {
return ResourcesPlugin.getWorkspace();
}
public static IWorkbenchPage getActivePage() {
return getDefault().internalGetActivePage();
}
public static IWorkbenchWindow getActiveWorkbenchWindow() {
return PlatformUI.getWorkbench().getActiveWorkbenchWindow();
}
public static Shell getActiveWorkbenchShell() {
IWorkbenchWindow window= getActiveWorkbenchWindow();
if (window != null) {
return window.getShell();
}
return null;
}
public static String getPluginId() {
return JavaUI.ID_PLUGIN;
}
public static void log(IStatus status) {
getDefault().getLog().log(status);
}
public static void logErrorMessage(String message) {
log(new Status(IStatus.ERROR, getPluginId(), IJavaStatusConstants.INTERNAL_ERROR, message, null));
}
public static void logErrorStatus(String message, IStatus status) {
if (status == null) {
logErrorMessage(message);
return;
}
MultiStatus multi= new MultiStatus(getPluginId(), IJavaStatusConstants.INTERNAL_ERROR, message, null);
multi.add(status);
log(multi);
}
public static void log(Throwable e) {
log(new Status(IStatus.ERROR, getPluginId(), IJavaStatusConstants.INTERNAL_ERROR, JavaUIMessages.JavaPlugin_internal_error, e));
}
/**
* Log a message that is potentially repeated after a very short time.
* The first time this method is called with a given message, the
* message is written to the log along with the detail message and a stack trace.
* <p>
* Only intended for use in debug statements.
*
* @param message the (generic) message
* @param detail the detail message
*/
public static void logRepeatedMessage(String message, String detail) {
long now= System.currentTimeMillis();
boolean writeToLog= true;
if (fgRepeatedMessages.containsKey(message)) {
long last= fgRepeatedMessages.get(message);
writeToLog= now - last > 5000;
}
fgRepeatedMessages.put(message, now);
if (writeToLog)
log(new Exception(message + detail).fillInStackTrace());
}
public static boolean isDebug() {
return getDefault().isDebugging();
}
public static ImageDescriptorRegistry getImageDescriptorRegistry() {
return getDefault().internalGetImageDescriptorRegistry();
}
public JavaPlugin() {
super();
fgJavaPlugin = this;
}
/* (non - Javadoc)
* Method declared in plug-in
*/
@Override
public void start(BundleContext context) throws Exception {
super.start(context);
fBundleContext= context;
// register debug options listener
Hashtable<String, String> properties= new Hashtable<>(2);
properties.put(DebugOptions.LISTENER_SYMBOLICNAME, getPluginId());
fDebugRegistration= context.registerService(DebugOptionsListener.class, this, properties);
WorkingCopyOwner.setPrimaryBufferProvider(new WorkingCopyOwner() {
@Override
public IBuffer createBuffer(ICompilationUnit workingCopy) {
ICompilationUnit original= workingCopy.getPrimary();
IResource resource= original.getResource();
if (resource instanceof IFile)
return new DocumentAdapter(workingCopy, (IFile) resource);
return DocumentAdapter.NULL;
}
});
// set the Preferences node id to get preferences from which is needed
// by the MembersOrderPreferenceCache common logic
JavaManipulation.setPreferenceNodeId(getPluginId());
IPreferenceStore store= getPreferenceStore();
// must add here to guarantee that it is the first in the listener list
fMembersOrderPreferenceCache= new MembersOrderPreferenceCache();
fMembersOrderPreferenceCache.install(store);
// set core methods for MethodWrapper
MethodWrapper.setMethodWrapperDynamic(new MethodWrapperDynamic());
FormatterProfileStore.checkCurrentOptionsVersion();
// make sure org.eclipse.jdt.core.manipulation is loaded too
// can be removed if JavaElementPropertyTester is moved down to jdt.core (bug 127085)
JavaManipulation.class.toString();
if (PlatformUI.isWorkbenchRunning()) {
// Initialize AST provider
getASTProvider();
fThemeListener= event -> {
if (IThemeManager.CHANGE_CURRENT_THEME.equals(event.getProperty()))
JavaUIPreferenceInitializer.setThemeBasedPreferences(PreferenceConstants.getPreferenceStore(), true);
};
PlatformUI.getWorkbench().getThemeManager().addPropertyChangeListener(fThemeListener);
createOrUpdateWorkingSet(DynamicSourcesWorkingSetUpdater.MAIN_NAME, DynamicSourcesWorkingSetUpdater.MAIN_OLD_NAME, WorkingSetMessages.JavaMainSourcesWorkingSet_name, IWorkingSetIDs.DYNAMIC_SOURCES);
createOrUpdateWorkingSet(DynamicSourcesWorkingSetUpdater.TEST_NAME, DynamicSourcesWorkingSetUpdater.TEST_OLD_NAME, WorkingSetMessages.JavaTestSourcesWorkingSet_name, IWorkingSetIDs.DYNAMIC_SOURCES);
new InitializeAfterLoadJob().schedule(); // last call in start, see bug 191193
}
JavaManipulation.setCodeTemplateStore(getCodeTemplateStore());
JavaManipulation.setCodeTemplateContextRegistry(getCodeTemplateContextRegistry());
disableNewCodeAssistCategoryPreferences();
setTypeFilterPreferences();
}
private void createOrUpdateWorkingSet(String name, String oldname, String label, final String id) {
IWorkingSetManager workingSetManager= PlatformUI.getWorkbench().getWorkingSetManager();
IWorkingSet workingSet= workingSetManager.getWorkingSet(name);
if (workingSet == null) {
workingSet= workingSetManager.createWorkingSet(name, new IAdaptable[0]);
workingSet.setLabel(label);
workingSet.setId(id);
workingSetManager.addWorkingSet(workingSet);
} else {
if(id.equals(workingSet.getId())) {
if (!label.equals(workingSet.getLabel()))
workingSet.setLabel(label);
} else {
logErrorMessage("found existing workingset with name=\"" + name + "\" but id=\"" + workingSet.getId() + "\""); //$NON-NLS-1$ //$NON-NLS-2$//$NON-NLS-3$
}
}
IWorkingSet oldWorkingSet= workingSetManager.getWorkingSet(oldname);
if (oldWorkingSet != null && id.equals(oldWorkingSet.getId())) {
workingSetManager.removeWorkingSet(oldWorkingSet);
}
}
/* package */ static void initializeAfterLoad(IProgressMonitor monitor) {
OpenTypeHistory.getInstance().checkConsistency(monitor);
}
/*
* @see org.eclipse.ui.plugin.AbstractUIPlugin#createImageRegistry()
*/
@Override
protected ImageRegistry createImageRegistry() {
return JavaPluginImages.getImageRegistry();
}
/*
* @see org.eclipse.core.runtime.Plugin#stop
*/
@Override
public void stop(BundleContext context) throws Exception {
try {
// unregister debug options listener
fDebugRegistration.unregister();
fDebugRegistration= null;
if (fImageDescriptorRegistry != null)
fImageDescriptorRegistry.dispose();
if (fASTProvider != null) {
fASTProvider.dispose();
fASTProvider= null;
}
if (fWorkingCopyManager != null) {
fWorkingCopyManager.shutdown();
fWorkingCopyManager= null;
}
if (fCompilationUnitDocumentProvider != null) {
fCompilationUnitDocumentProvider.shutdown();
fCompilationUnitDocumentProvider= null;
}
if (fJavaTextTools != null) {
fJavaTextTools.dispose();
fJavaTextTools= null;
}
if (fContentAssistHistory != null) {
ContentAssistHistory.store(fContentAssistHistory, getPluginPreferences(), PreferenceConstants.CODEASSIST_LRU_HISTORY);
fContentAssistHistory= null;
}
if (fTemplateStore != null) {
fTemplateStore.stopListeningForPreferenceChanges();
fTemplateStore= null;
}
if (fCodeTemplateStore != null) {
fCodeTemplateStore.stopListeningForPreferenceChanges();
fCodeTemplateStore= null;
}
if (fMembersOrderPreferenceCache != null) {
fMembersOrderPreferenceCache.dispose();
fMembersOrderPreferenceCache= null;
}
if (fSaveParticipantRegistry != null) {
fSaveParticipantRegistry.dispose();
fSaveParticipantRegistry= null;
}
if (fDialogsFormToolkit != null) {
fDialogsFormToolkit.dispose();
fDialogsFormToolkit= null;
}
if (fThemeListener != null) {
PlatformUI.getWorkbench().getThemeManager().removePropertyChangeListener(fThemeListener);
fThemeListener= null;
}
if (fImagesOnFSRegistry != null) {
fImagesOnFSRegistry.dispose();
fImagesOnFSRegistry= null;
}
SpellCheckEngine.shutdownInstance();
QualifiedTypeNameHistory.getDefault().save();
// must add here to guarantee that it is the first in the listener list
OpenTypeHistory.shutdown();
JavaManipulation.setPreferenceNodeId(null);
} finally {
super.stop(context);
}
}
private IWorkbenchPage internalGetActivePage() {
IWorkbenchWindow window= PlatformUI.getWorkbench().getActiveWorkbenchWindow();
if (window == null)
return null;
return window.getActivePage();
}
/**
* Private deprecated method to avoid deprecation warnings
*
* @return the deprecated buffer factory
* @deprecated to avoid deprecation warnings
*/
@Deprecated
public synchronized org.eclipse.jdt.core.IBufferFactory getBufferFactory() {
if (fBufferFactory == null)
fBufferFactory= new org.eclipse.jdt.internal.ui.javaeditor.CustomBufferFactory();
return fBufferFactory;
}
public ICompilationUnitDocumentProvider getCompilationUnitDocumentProvider() {
ICompilationUnitDocumentProvider result= fCompilationUnitDocumentProvider;
if (result != null) { // First check (no locking)
return result;
}
synchronized(this) {
if (fCompilationUnitDocumentProvider == null) { // Second check (with locking)
fCompilationUnitDocumentProvider= new CompilationUnitDocumentProvider();
}
return fCompilationUnitDocumentProvider;
}
}
/**
* Returns the shared document provider for Java properties files
* used by this plug-in instance.
*
* @return the shared document provider for Java properties files
* @since 3.1
*/
public IDocumentProvider getPropertiesFileDocumentProvider() {
IDocumentProvider result= fPropertiesFileDocumentProvider;
if (result != null) { // First check (no locking)
return result;
}
synchronized(this) {
if (fPropertiesFileDocumentProvider == null) { // Second check (with locking)
fPropertiesFileDocumentProvider= new PropertiesFileDocumentProvider();
}
return fPropertiesFileDocumentProvider;
}
}
public ClassFileDocumentProvider getClassFileDocumentProvider() {
ClassFileDocumentProvider result= fClassFileDocumentProvider;
if (result != null) { // First check (no locking)
return result;
}
synchronized(this) {
if (fClassFileDocumentProvider == null) { // Second check (with locking)
fClassFileDocumentProvider= new ClassFileDocumentProvider();
}
return fClassFileDocumentProvider;
}
}
public WorkingCopyManager getWorkingCopyManager() {
WorkingCopyManager result= fWorkingCopyManager;
if (result != null) { // First check (no locking)
return result;
}
synchronized(this) {
if (fWorkingCopyManager == null) { // Second check (with locking)
ICompilationUnitDocumentProvider provider= getCompilationUnitDocumentProvider();
fWorkingCopyManager= new WorkingCopyManager(provider);
}
return fWorkingCopyManager;
}
}
public ProblemMarkerManager getProblemMarkerManager() {
ProblemMarkerManager result= fProblemMarkerManager;
if (result != null) { // First check (no locking)
return result;
}
synchronized(this) {
if (fProblemMarkerManager == null) { // Second check (with locking)
fProblemMarkerManager= new ProblemMarkerManager();
}
return fProblemMarkerManager;
}
}
public JavaTextTools getJavaTextTools() {
JavaTextTools result= fJavaTextTools;
if (result != null) { // First check (no locking)
return result;
}
synchronized(this) {
if (fJavaTextTools == null) { // Second check (with locking)
fJavaTextTools= new JavaTextTools(getPreferenceStore(), getJavaCorePluginPreferences());
}
return fJavaTextTools;
}
}
/**
* Returns the Java Core plug-in preferences.
*
* @return the Java Core plug-in preferences
* @since 3.7
*/
public static org.eclipse.core.runtime.Preferences getJavaCorePluginPreferences() {
return JavaCore.getPlugin().getPluginPreferences();
}
/**
* Returns the AST provider.
*
* @return the AST provider
* @since 3.0
*/
public ASTProvider getASTProvider() {
ASTProvider result= fASTProvider;
if (result != null) { // First check (no locking)
return result;
}
synchronized(this) {
if (fASTProvider == null) { // Second check (with locking)
fASTProvider= new ASTProvider();
}
return fASTProvider;
}
}
public MembersOrderPreferenceCache getMemberOrderPreferenceCache() {
// initialized on startup
return fMembersOrderPreferenceCache;
}
public TypeFilter getTypeFilter() {
return JavaManipulationPlugin.getDefault().getTypeFilter();
}
public FormToolkit getDialogsFormToolkit() {
if (fDialogsFormToolkit == null) {
FormColors colors= new FormColors(Display.getCurrent());
colors.setBackground(null);
colors.setForeground(null);
fDialogsFormToolkit= new FormToolkit(colors);
}
return fDialogsFormToolkit;
}
/**
* Returns all Java editor text hovers contributed to the workbench.
*
* @return an array of JavaEditorTextHoverDescriptor
* @since 2.1
*/
public JavaEditorTextHoverDescriptor[] getJavaEditorTextHoverDescriptors() {
JavaEditorTextHoverDescriptor[] result= fJavaEditorTextHoverDescriptors;
if (result != null) { // First check (no locking)
return result;
}
synchronized(this) {
if (fJavaEditorTextHoverDescriptors == null) { // Second check (with locking)
JavaEditorTextHoverDescriptor[] tmp= JavaEditorTextHoverDescriptor.getContributedHovers();
ConfigurationElementSorter sorter= new ConfigurationElementSorter() {
/*
* @see org.eclipse.ui.texteditor.ConfigurationElementSorter#getConfigurationElement(java.lang.Object)
*/
@Override
public IConfigurationElement getConfigurationElement(Object object) {
return ((JavaEditorTextHoverDescriptor)object).getConfigurationElement();
}
};
sorter.sort(tmp);
// Move Best Match hover to front
for (int i= 0; i < tmp.length - 1; i++) {
if (PreferenceConstants.ID_BESTMATCH_HOVER.equals(tmp[i].getId())) {
JavaEditorTextHoverDescriptor hoverDescriptor= tmp[i];
for (int j= i; j > 0; j--)
tmp[j]= tmp[j-1];
tmp[0]= hoverDescriptor;
break;
}
}
fJavaEditorTextHoverDescriptors= tmp;
}
return fJavaEditorTextHoverDescriptors;
}
}
/**
* Resets the Java editor text hovers contributed to the workbench.
* <p>
* This will force a rebuild of the descriptors the next time
* a client asks for them.
* </p>
*
* @since 2.1
*/
public synchronized void resetJavaEditorTextHoverDescriptors() {
fJavaEditorTextHoverDescriptors= null;
}
/**
* Creates the Java plug-in's standard groups for view context menus.
*
* @param menu the menu manager to be populated
*/
public static void createStandardGroups(IMenuManager menu) {
if (!menu.isEmpty())
return;
menu.add(new Separator(IContextMenuConstants.GROUP_NEW));
menu.add(new GroupMarker(IContextMenuConstants.GROUP_GOTO));
menu.add(new Separator(IContextMenuConstants.GROUP_OPEN));
menu.add(new GroupMarker(IContextMenuConstants.GROUP_SHOW));
menu.add(new Separator(ICommonMenuConstants.GROUP_EDIT));
menu.add(new Separator(IContextMenuConstants.GROUP_REORGANIZE));
menu.add(new Separator(IContextMenuConstants.GROUP_GENERATE));
menu.add(new Separator(IContextMenuConstants.GROUP_SEARCH));
menu.add(new Separator(IContextMenuConstants.GROUP_BUILD));
menu.add(new Separator(IContextMenuConstants.GROUP_ADDITIONS));
menu.add(new Separator(IContextMenuConstants.GROUP_VIEWER_SETUP));
menu.add(new Separator(IContextMenuConstants.GROUP_PROPERTIES));
}
/**
* Returns the template context type registry for the java plug-in.
*
* @return the template context type registry for the java plug-in
* @since 3.0
*/
public ContextTypeRegistry getTemplateContextRegistry() {
ContextTypeRegistry result= fContextTypeRegistry;
if (result != null) { // First check (no locking)
return result;
}
synchronized(this) {
if (fContextTypeRegistry == null) { // Second check (with locking)
ContributionContextTypeRegistry registry= new ContributionContextTypeRegistry(JavaUI.ID_CU_EDITOR);
TemplateContextType all_contextType= registry.getContextType(JavaContextType.ID_ALL);
((AbstractJavaContextType) all_contextType).initializeContextTypeResolvers();
registerJavaContext(registry, JavaContextType.ID_MEMBERS, all_contextType);
registerJavaContext(registry, JavaContextType.ID_STATEMENTS, all_contextType);
registerJavaContext(registry, JavaContextType.ID_MODULE, all_contextType);
registerJavaContext(registry, JavaContextType.ID_EMPTY, all_contextType);
registerJavaContext(registry, SWTContextType.ID_ALL, all_contextType);
all_contextType= registry.getContextType(SWTContextType.ID_ALL);
registerJavaContext(registry, SWTContextType.ID_MEMBERS, all_contextType);
registerJavaContext(registry, SWTContextType.ID_STATEMENTS, all_contextType);
registerJavaContext(registry, JavaPostfixContextType.ID_ALL, all_contextType);
all_contextType= registry.getContextType(JavaPostfixContextType.ID_ALL);
fContextTypeRegistry= registry;
}
return fContextTypeRegistry;
}
}
/**
* Registers the given Java template context.
*
* @param registry the template context type registry
* @param id the context type id
* @param parent the parent context type
* @since 3.4
*/
private static void registerJavaContext(ContributionContextTypeRegistry registry, String id, TemplateContextType parent) {
TemplateContextType contextType= registry.getContextType(id);
Iterator<TemplateVariableResolver> iter= parent.resolvers();
while (iter.hasNext())
contextType.addResolver(iter.next());
}
/**
* Returns the template store for the java editor templates.
*
* @return the template store for the java editor templates
* @since 3.0
*/
public TemplateStore getTemplateStore() {
if (fTemplateStore == null) {
final IPreferenceStore store= getPreferenceStore();
fTemplateStore= new ContributionTemplateStore(getTemplateContextRegistry(), store, TEMPLATES_KEY);
try {
fTemplateStore.load();
} catch (IOException e) {
log(e);
}
fTemplateStore.startListeningForPreferenceChanges();
}
return fTemplateStore;
}
/**
* Returns the template context type registry for the code generation
* templates.
*
* @return the template context type registry for the code generation
* templates
* @since 3.0
*/
public ContextTypeRegistry getCodeTemplateContextRegistry() {
if (fCodeTemplateContextTypeRegistry == null) {
fCodeTemplateContextTypeRegistry= new ContributionContextTypeRegistry();
CodeTemplateContextType.registerContextTypes(fCodeTemplateContextTypeRegistry);
}
return fCodeTemplateContextTypeRegistry;
}
/**
* Returns the template store for the code generation templates.
*
* @return the template store for the code generation templates
* @since 3.0
*/
public TemplateStore getCodeTemplateStore() {
if (fCodeTemplateStore == null) {
IPreferenceStore store= getPreferenceStore();
fCodeTemplateStore= new ContributionTemplateStore(getCodeTemplateContextRegistry(), store, CODE_TEMPLATES_KEY);
try {
fCodeTemplateStore.load();
} catch (IOException e) {
log(e);
}
fCodeTemplateStore.startListeningForPreferenceChanges();
}
return fCodeTemplateStore;
}
ImageDescriptorRegistry internalGetImageDescriptorRegistry() {
ImageDescriptorRegistry result= fImageDescriptorRegistry;
if (result != null) { // First check (no locking)
return result;
}
synchronized(this) {
if (fImageDescriptorRegistry == null) { // Second check (with locking)
fImageDescriptorRegistry= new ImageDescriptorRegistry();
}
return fImageDescriptorRegistry;
}
}
/**
* Returns a combined preference store, this store is read-only.
*
* @return the combined preference store
*
* @since 3.0
*/
public IPreferenceStore getCombinedPreferenceStore() {
if (fCombinedPreferenceStore == null) {
IPreferenceStore generalTextStore= EditorsUI.getPreferenceStore();
fCombinedPreferenceStore= new ChainedPreferenceStore(new IPreferenceStore[] { getPreferenceStore(), new PreferencesAdapter(getJavaCorePluginPreferences()), generalTextStore });
}
return fCombinedPreferenceStore;
}
/**
* Flushes the instance scope of this plug-in.
*
* @since 3.7
*/
public static void flushInstanceScope() {
try {
InstanceScope.INSTANCE.getNode(JavaUI.ID_PLUGIN).flush();
} catch (BackingStoreException e) {
log(e);
}
}
/**
* Returns the registry of the extensions to the
* <code>org.eclipse.jdt.ui.javaFoldingStructureProvider</code> extension point.
*
* @return the registry of contributed <code>IJavaFoldingStructureProvider</code>
* @since 3.0
*/
public JavaFoldingStructureProviderRegistry getFoldingStructureProviderRegistry() {
JavaFoldingStructureProviderRegistry result= fFoldingStructureProviderRegistry;
if (result != null) { // First check (no locking)
return result;
}
synchronized(this) {
if (fFoldingStructureProviderRegistry == null) { // Second check (with locking)
fFoldingStructureProviderRegistry= new JavaFoldingStructureProviderRegistry();
}
return fFoldingStructureProviderRegistry;
}
}
/**
* Returns the save participant registry.
*
* @return the save participant registry, not null
* @since 3.3
*/
public SaveParticipantRegistry getSaveParticipantRegistry() {
SaveParticipantRegistry result= fSaveParticipantRegistry;
if (result != null) { // First check (no locking)
return result;
}
synchronized(this) {
if (fSaveParticipantRegistry == null) { // Second check (with locking)
fSaveParticipantRegistry= new SaveParticipantRegistry();
}
return fSaveParticipantRegistry;
}
}
public CleanUpRegistry getCleanUpRegistry() {
CleanUpRegistry result= fCleanUpRegistry;
if (result != null) { // First check (no locking)
return result;
}
synchronized(this) {
if (fCleanUpRegistry == null) { // Second check (with locking)
fCleanUpRegistry= new CleanUpRegistry();
}
return fCleanUpRegistry;
}
}
/**
* Returns the Java content assist history.
*
* @return the Java content assist history
* @since 3.2
*/
public ContentAssistHistory getContentAssistHistory() {
if (fContentAssistHistory == null) {
try {
fContentAssistHistory= ContentAssistHistory.load(getPluginPreferences(), PreferenceConstants.CODEASSIST_LRU_HISTORY);
} catch (CoreException x) {
log(x);