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/*******************************************************************************
* Copyright (c) 2003, 2004 IBM 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
/*
* Created on Sep 13, 2004
*
* To change the template for this generated file go to
* Window>Preferences>Java>Code Generation>Code and Comments
*/
package org.eclipse.jst.j2ee.application.operations;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.jst.j2ee.commonarchivecore.internal.Archive;
import org.eclipse.jst.j2ee.commonarchivecore.internal.helpers.RuntimeClasspathEntry;
import org.eclipse.jst.j2ee.internal.common.ClasspathModel;
import org.eclipse.jst.j2ee.internal.earcreation.EAREditModel;
import org.eclipse.jst.j2ee.internal.earcreation.EARNatureRuntime;
import org.eclipse.jst.j2ee.internal.project.J2EEProjectUtilities;
/**
* @author schacher Helper class used to compute all the dependencies for a JAR being added to an
* EAR
*/
class JARDependencyTraverser {
private IProject archiveProject;
private IProject earProject;
private Map result;
private EAREditModel earEditModel;
public JARDependencyTraverser(IProject anArchiveProject, IProject anEarProject) {
super();
this.archiveProject = anArchiveProject;
this.earProject = anEarProject;
}
//Returns a map where the keys are instances of IResource, and the values
// are uris within an EAR
public Map run() {
EARNatureRuntime[] earNatures = J2EEProjectUtilities.getReferencingEARProjects(archiveProject);
if (earNatures == null || earNatures.length == 0 || (earNatures.length == 1 && earNatures[0].getProject() == earProject))
return Collections.EMPTY_MAP;
result = new HashMap();
EARNatureRuntime runtime = EARNatureRuntime.getRuntime(earProject);
if (runtime == null)
return Collections.EMPTY_MAP;
earEditModel = runtime.getEarEditModelForRead(this);
try {
for (int i = 0; i < earNatures.length; i++) {
if (earNatures[i].getProject() != earProject) {
traverseClasspath(earNatures[i]);
}
}
return result;
} finally {
if (earEditModel != null)
earEditModel.releaseAccess(this);
}
}
private void traverseClasspath(EARNatureRuntime anEARNature) {
ClasspathModel model = new ClasspathModel(null);
model.setProject(archiveProject);
model.setSelectedEARNature(anEARNature);
ClassPathSelection cpSelection = model.getClassPathSelection();
Archive anArchive = model.getArchive();
RuntimeClasspathEntry[] entries = anArchive.getDependencyClassPath();
Archive referencedArchive = null;
for (int i = 0; i < entries.length; i++) {
RuntimeClasspathEntry entry = entries[i];
referencedArchive = entry.getReferencedArchive();
if (entry.isWebLib() || referencedArchive == null)
continue;
String uri = referencedArchive.getURI();
if (uri == null)
continue;
ClasspathElement elmt = cpSelection.getClasspathElement(uri);
if (elmt == null)
continue;
IResource resource = elmt.getResource();
if (resource != null)
addResult(resource, uri);
}
}
private void addResult(IResource res, String uri) {
if (result.containsKey(res))
return;
boolean exists = false;
switch (res.getType()) {
case IResource.FILE :
exists = containsJARFile((IFile) res, uri);
break;
case IResource.PROJECT :
exists = earEditModel.hasMappingToProject((IProject) res);
break;
default :
return;
}
if (!exists)
result.put(res, uri);
}
/**
* @param file
* @param uri
* @return
*/
private boolean containsJARFile(IFile file, String uri) {
IPath path = null;
try {
path = new Path(uri);
} catch (IllegalArgumentException tooBad) {
return true;
}
IFile existing = earProject.getFile(path);
return (existing != null && existing.exists());
}
}
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