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Diffstat (limited to 'plugins/org.eclipse.jst.j2ee/refactor/org/eclipse/jst/j2ee/refactor/ProjectDependencyCache.java')
-rw-r--r--plugins/org.eclipse.jst.j2ee/refactor/org/eclipse/jst/j2ee/refactor/ProjectDependencyCache.java150
1 files changed, 0 insertions, 150 deletions
diff --git a/plugins/org.eclipse.jst.j2ee/refactor/org/eclipse/jst/j2ee/refactor/ProjectDependencyCache.java b/plugins/org.eclipse.jst.j2ee/refactor/org/eclipse/jst/j2ee/refactor/ProjectDependencyCache.java
deleted file mode 100644
index 08abac355..000000000
--- a/plugins/org.eclipse.jst.j2ee/refactor/org/eclipse/jst/j2ee/refactor/ProjectDependencyCache.java
+++ /dev/null
@@ -1,150 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2005 BEA Systems, Inc.
- * 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:
- * rfrost@bea.com - initial API and implementation
- *******************************************************************************/
-
-package org.eclipse.jst.j2ee.refactor;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-
-import org.eclipse.core.resources.IProject;
-import org.eclipse.core.resources.ResourcesPlugin;
-import org.eclipse.core.runtime.CoreException;
-import org.eclipse.jst.j2ee.internal.plugin.J2EEPlugin;
-
-/**
- * Maintains a cache of project dependencies as represented by references in the .project file.
- *
- * XXX DependencyManagerGraph is being used instead now that inter-project dependencies have
- * dependent-module entries, however, this type of dependency representation might be useful if
- * we want to capture dependencies on projects not represented in the .component file.
- */
-public class ProjectDependencyCache {
-
- private static ProjectDependencyCache cache;
-
- public synchronized static ProjectDependencyCache getCache() {
- if (cache == null) {
- try {
- cache = new ProjectDependencyCache();
- } catch (CoreException ce) {
- J2EEPlugin.logError(ce);
- }
- }
- return cache;
- }
-
- /*
- * Map from target IProject to List of dependent IProjects
- */
- private final Map dependencyCache = new HashMap();
-
- /*
- * Map from dependent IProject to List of target IProject
- */
- private final Map referenceCache = new HashMap();
-
- /**
- * Creates and initializes the cache.
- */
- protected ProjectDependencyCache() throws CoreException {
- final IProject[] projects = ResourcesPlugin.getWorkspace().getRoot().getProjects();
- for (int i = 0; i < projects.length; i++) {
- refreshDependencies(projects[i]);
- }
- }
-
- public synchronized IProject[] getDependentProjects(final IProject project) {
- List dependencies = (List) dependencyCache.get(project);
- if (dependencies == null) {
- return new IProject[0];
- }
- return (IProject[]) dependencies.toArray(new IProject[dependencies.size()]);
- }
-
- public synchronized void refreshDependencies(final IProject project) throws CoreException {
- List oldRefs = (List) referenceCache.get(project);
- if (oldRefs == null) {
- oldRefs = new ArrayList();
- }
- final IProject[] refProjects = project.getDescription().getReferencedProjects();
- final List newRefs = new ArrayList();
- for (int j = 0; j < refProjects.length; j++) {
- addDependency(refProjects[j], project);
- newRefs.add(refProjects[j]);
- oldRefs.remove(refProjects[j]);
- }
- referenceCache.put(project, newRefs);
-
- // need to cull the stale refs from the reverse map
- Iterator i = oldRefs.iterator();
- while (i.hasNext()) {
- removeDependency((IProject) i.next(), project);
- }
- }
-
- public synchronized void refreshDependenciesForTarget(final IProject target) throws CoreException {
- final IProject[] dependents= getDependentProjects(target);
- for (int i = 0; i < dependents.length; i++) {
- refreshDependencies(dependents[i]);
- }
- }
-
- public synchronized void removeProject(final IProject project) throws CoreException {
- // remove from the dependency cache
- dependencyCache.remove(project);
- // remove from the reference cache and clear the from the cache of all dependent projects
- List dependencies = (List) referenceCache.remove(project);
- if (dependencies != null) {
- final Iterator i = dependencies.iterator();
- while (i.hasNext()) {
- removeDependency((IProject) i.next(), project);
- }
- }
- }
-
- public synchronized void replaceProject(final IProject originalProject, final IProject newProject) throws CoreException {
- // rename dependencyCache entry
- dependencyCache.put(newProject, dependencyCache.remove(originalProject));
-
- // rename reference cache and clear the from the cache of all dependent projects
- List dependencies = (List) referenceCache.remove(originalProject);
- referenceCache.put(newProject, dependencies);
- if (dependencies != null) {
- final Iterator i = dependencies.iterator();
- while (i.hasNext()) {
- final IProject ref = (IProject) i.next();
- removeDependency(ref, originalProject);
- addDependency(ref, newProject);
- }
- }
- }
-
- private void removeDependency(final IProject target, final IProject dependent) {
- List dependentProjects = (List) dependencyCache.get(target);
- if (dependentProjects != null) {
- dependentProjects.remove(dependent);
- }
- }
-
- private void addDependency(final IProject target, final IProject dependent) {
- List dependentProjects = (List) dependencyCache.get(target);
- if (dependentProjects == null) {
- dependentProjects = new ArrayList();
- dependencyCache.put(target, dependentProjects);
- }
- if (!dependentProjects.contains(dependent)) {
- dependentProjects.add(dependent);
- }
- }
-}

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