/*******************************************************************************
* Copyright (c) 2000, 2007 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
*******************************************************************************/
package org.aspectj.org.eclipse.jdt.internal.core;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.core.resources.*;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.aspectj.org.eclipse.jdt.core.*;
public class DeletePackageFragmentRootOperation extends JavaModelOperation {
int updateResourceFlags;
int updateModelFlags;
public DeletePackageFragmentRootOperation(
IPackageFragmentRoot root,
int updateResourceFlags,
int updateModelFlags) {
super(root);
this.updateResourceFlags = updateResourceFlags;
this.updateModelFlags = updateModelFlags;
}
protected void executeOperation() throws JavaModelException {
IPackageFragmentRoot root = (IPackageFragmentRoot)this.getElementToProcess();
IClasspathEntry rootEntry = root.getRawClasspathEntry();
// remember olds roots
DeltaProcessor deltaProcessor = JavaModelManager.getJavaModelManager().getDeltaProcessor();
if (deltaProcessor.oldRoots == null)
deltaProcessor.oldRoots = new HashMap();
// update classpath if needed
if ((updateModelFlags & IPackageFragmentRoot.ORIGINATING_PROJECT_CLASSPATH) != 0) {
updateProjectClasspath(rootEntry.getPath(), root.getJavaProject(), deltaProcessor.oldRoots);
}
if ((updateModelFlags & IPackageFragmentRoot.OTHER_REFERRING_PROJECTS_CLASSPATH) != 0) {
updateReferringProjectClasspaths(rootEntry.getPath(), root.getJavaProject(), deltaProcessor.oldRoots);
}
// delete resource
if (!root.isExternal() && (this.updateModelFlags & IPackageFragmentRoot.NO_RESOURCE_MODIFICATION) == 0) {
deleteResource(root, rootEntry);
}
}
protected void deleteResource(
IPackageFragmentRoot root,
IClasspathEntry rootEntry)
throws JavaModelException {
final char[][] exclusionPatterns = ((ClasspathEntry)rootEntry).fullExclusionPatternChars();
IResource rootResource = root.getResource();
if (rootEntry.getEntryKind() != IClasspathEntry.CPE_SOURCE || exclusionPatterns == null) {
try {
rootResource.delete(this.updateResourceFlags, progressMonitor);
} catch (CoreException e) {
throw new JavaModelException(e);
}
} else {
final IPath[] nestedFolders = getNestedFolders(root);
IResourceProxyVisitor visitor = new IResourceProxyVisitor() {
public boolean visit(IResourceProxy proxy) throws CoreException {
if (proxy.getType() == IResource.FOLDER) {
IPath path = proxy.requestFullPath();
if (prefixesOneOf(path, nestedFolders)) {
// equals if nested source folder
return !equalsOneOf(path, nestedFolders);
} else {
// subtree doesn't contain any nested source folders
proxy.requestResource().delete(updateResourceFlags, progressMonitor);
return false;
}
} else {
proxy.requestResource().delete(updateResourceFlags, progressMonitor);
return false;
}
}
};
try {
rootResource.accept(visitor, IResource.NONE);
} catch (CoreException e) {
throw new JavaModelException(e);
}
}
setAttribute(HAS_MODIFIED_RESOURCE_ATTR, TRUE);
}
/*
* Deletes the classpath entries equals to the given rootPath from all Java projects.
*/
protected void updateReferringProjectClasspaths(IPath rootPath, IJavaProject projectOfRoot, Map oldRoots) throws JavaModelException {
IJavaModel model = this.getJavaModel();
IJavaProject[] projects = model.getJavaProjects();
for (int i = 0, length = projects.length; i < length; i++) {
IJavaProject project = projects[i];
if (project.equals(projectOfRoot)) continue;
updateProjectClasspath(rootPath, project, oldRoots);
}
}
/*
* Deletes the classpath entries equals to the given rootPath from the given project.
*/
protected void updateProjectClasspath(IPath rootPath, IJavaProject project, Map oldRoots) throws JavaModelException {
// remember old roots
oldRoots.put(project, project.getPackageFragmentRoots());
IClasspathEntry[] classpath = project.getRawClasspath();
IClasspathEntry[] newClasspath = null;
int cpLength = classpath.length;
int newCPIndex = -1;
for (int j = 0; j < cpLength; j++) {
IClasspathEntry entry = classpath[j];
if (rootPath.equals(entry.getPath())) {
if (newClasspath == null) {
newClasspath = new IClasspathEntry[cpLength-1];
System.arraycopy(classpath, 0, newClasspath, 0, j);
newCPIndex = j;
}
} else if (newClasspath != null) {
newClasspath[newCPIndex++] = entry;
}
}
if (newClasspath != null) {
if (newCPIndex < newClasspath.length) {
System.arraycopy(newClasspath, 0, newClasspath = new IClasspathEntry[newCPIndex], 0, newCPIndex);
}
project.setRawClasspath(newClasspath, progressMonitor);
}
}
protected IJavaModelStatus verify() {
IJavaModelStatus status = super.verify();
if (!status.isOK()) {
return status;
}
IPackageFragmentRoot root = (IPackageFragmentRoot) this.getElementToProcess();
if (root == null || !root.exists()) {
return new JavaModelStatus(IJavaModelStatusConstants.ELEMENT_DOES_NOT_EXIST, root);
}
IResource resource = root.getResource();
if (resource instanceof IFolder) {
if (resource.isLinked()) {
return new JavaModelStatus(IJavaModelStatusConstants.INVALID_RESOURCE, root);
}
}
return JavaModelStatus.VERIFIED_OK;
}
}