diff options
Diffstat (limited to 'jsf/plugins/org.eclipse.jst.jsf.ui/src/org/eclipse/jst/jsf/ui/internal/tagregistry/ProjectTracker.java')
| -rw-r--r-- | jsf/plugins/org.eclipse.jst.jsf.ui/src/org/eclipse/jst/jsf/ui/internal/tagregistry/ProjectTracker.java | 208 |
1 files changed, 0 insertions, 208 deletions
diff --git a/jsf/plugins/org.eclipse.jst.jsf.ui/src/org/eclipse/jst/jsf/ui/internal/tagregistry/ProjectTracker.java b/jsf/plugins/org.eclipse.jst.jsf.ui/src/org/eclipse/jst/jsf/ui/internal/tagregistry/ProjectTracker.java deleted file mode 100644 index 870fc8da7..000000000 --- a/jsf/plugins/org.eclipse.jst.jsf.ui/src/org/eclipse/jst/jsf/ui/internal/tagregistry/ProjectTracker.java +++ /dev/null @@ -1,208 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2001, 2008 Oracle Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * Oracle Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.jst.jsf.ui.internal.tagregistry; - -import java.util.HashSet; -import java.util.Set; -import java.util.concurrent.CopyOnWriteArrayList; - -import org.eclipse.core.resources.IProject; -import org.eclipse.core.resources.IResource; -import org.eclipse.core.resources.IWorkspaceRoot; -import org.eclipse.core.resources.ResourcesPlugin; -import org.eclipse.jst.jsf.common.internal.resource.IResourceLifecycleListener; -import org.eclipse.jst.jsf.common.internal.resource.LifecycleListener; -import org.eclipse.jst.jsf.common.internal.resource.ResourceLifecycleEvent; -import org.eclipse.jst.jsf.common.internal.resource.ResourceLifecycleEvent.EventType; -import org.eclipse.jst.jsf.common.internal.resource.ResourceLifecycleEvent.ReasonType; -import org.eclipse.jst.jsf.ui.internal.tagregistry.ProjectTracker.ProjectTrackingListener.Reason; - -/** - * Tracks the active JSF projects in the workspace, maintaining a list of valid - * projects and firing events when it changes - * - * @author cbateman - * - */ -class ProjectTracker -{ - private final IWorkspaceRoot _root; - private final LifecycleListener _lifecycleListener; - private final CopyOnWriteArrayList<ProjectTrackingListener> _myListeners; - private Set<IProject> _validProjects; - private final ResourceChangeListener _resourceChangeListener; - private ProjectAdvisor _projectAdvisor; - - public ProjectTracker(final IWorkspaceRoot root, final ProjectAdvisor projectAdvisor) - { - _root = root; - _lifecycleListener = new LifecycleListener(ResourcesPlugin.getWorkspace()); - _resourceChangeListener = new ResourceChangeListener(); - _myListeners = new CopyOnWriteArrayList<ProjectTrackingListener>(); - if (projectAdvisor != null) - { - _projectAdvisor = projectAdvisor; - } - else - { - _projectAdvisor = DEFAULT_ADVISOR; - } - } - - public void startTracking() - { - _lifecycleListener.addResource(_root); - - _validProjects = new HashSet<IProject>(); - - for (final IProject project : _root.getProjects()) - { - if (_projectAdvisor.shouldTrack(project)) - { - _validProjects.add(project); - _lifecycleListener.addResource(project); - } - } - // do this last, to ensure that any "simulataneous" events are handled - // by our listener only after everything is initialized. - _lifecycleListener.addListener(_resourceChangeListener); - } - - public Set<IProject> getProjects() - { - final Set<IProject> projects = new HashSet<IProject>(); - synchronized (this) - { - projects.addAll(_validProjects); - } - return projects; - } - - private synchronized void addProject(final IProject project) - { - if (_projectAdvisor.shouldTrack(project)) - { - synchronized (this) - { - _validProjects.add(project); - _lifecycleListener.addResource(project); - } - fireChangeEvent(project, Reason.ADDED); - } - } - - private void removeProject(final IProject project) - { - synchronized (this) - { - _validProjects.remove(project); - _lifecycleListener.removeResource(project); - } - fireChangeEvent(project, Reason.REMOVED); - } - - public void addListener(ProjectTrackingListener listener) - { - _myListeners.addIfAbsent(listener); - } - - public void removeListener(ProjectTrackingListener listener) - { - _myListeners.remove(listener); - } - - private void fireChangeEvent(final IProject project, - ProjectTrackingListener.Reason reason) - { - for (final ProjectTrackingListener listener : _myListeners) - { - listener.projectsChanged(project, reason); - } - } - - public void dispose() - { - _lifecycleListener.dispose(); - _validProjects.clear(); - _myListeners.clear(); - } - - private class ResourceChangeListener implements IResourceLifecycleListener - { - public EventResult acceptEvent(final ResourceLifecycleEvent event) - { - final IResource res = event.getAffectedResource(); - - // only interested if is affecting one of my resources - - // if the root is the source, check if a projected has been added - // or opened - // EventType eventType = event.getEventType(); - if (event.getEventType() == EventType.RESOURCE_ADDED - && event.getReasonType() == ReasonType.PROJECT_OPENED - && res instanceof IProject) - { - handleNewProject((IProject) res); - } - else if (_validProjects.contains(res) - && event.getEventType() == EventType.RESOURCE_INACCESSIBLE) - { - handleProjectClosed((IProject) res); - } - return EventResult.getDefaultEventResult(); - } - - private void handleNewProject(final IProject project) - { - addProject(project); - } - - private void handleProjectClosed(final IProject project) - { - removeProject(project); - } - } - - public static class ProjectTrackingListener - { - public enum Reason - { - /** - * Reason for change is a project added - */ - ADDED, - /** - * Reason for change is a project removed - */ - REMOVED - } - - protected void projectsChanged(final IProject project, Reason reason) - { - // do nothing by default - } - } - - private static final ProjectAdvisor DEFAULT_ADVISOR = new ProjectAdvisor() - { - @Override - public boolean shouldTrack( - IProject project) - { - return true; - } - }; - - public abstract static class ProjectAdvisor - { - public abstract boolean shouldTrack(final IProject project); - } -} |