public boolean execute(IProgressMonitor progressMonitor) {
if (this.isCancelled || progressMonitor != null && progressMonitor.isCanceled()) return true;
/* ensure no concurrent write access to index */
Index index =
this.manager.getIndex(
this.containerPath, true, /*reuse index file*/ false /*create if none*/);
if (index == null) return true;
ReadWriteMonitor monitor = index.monitor;
if (monitor == null) return true; // index got deleted since acquired
try {
monitor.enterRead(); // ask permission to read
String containerRelativePath =
Util.relativePath(this.folderPath, this.containerPath.segmentCount());
String[] paths = index.queryDocumentNames(containerRelativePath);
// all file names belonging to the folder or its subfolders and that are not excluded (see
// http://bugs.eclipse.org/bugs/show_bug.cgi?id=32607)
if (paths != null) {
if (this.exclusionPatterns == null && this.inclusionPatterns == null) {
for (int i = 0, max = paths.length; i < max; i++) {
manager.remove(
paths[i],
this.containerPath); // write lock will be acquired by the remove operation
}
} else {
for (int i = 0, max = paths.length; i < max; i++) {
String documentPath = this.containerPath.toString() + '/' + paths[i];
if (!Util.isExcluded(
new Path(documentPath), this.inclusionPatterns, this.exclusionPatterns, false))
manager.remove(
paths[i],
this.containerPath); // write lock will be acquired by the remove operation
}
}
}
} catch (IOException e) {
if (JobManager.VERBOSE) {
Util.verbose(
"-> failed to remove "
+ this.folderPath
+ " from index because of the following exception:",
System.err); // $NON-NLS-1$ //$NON-NLS-2$
e.printStackTrace();
}
return false;
} finally {
monitor.exitRead(); // free read lock
}
return true;
}
/**
* Add an element to the java search scope.
*
* @param element The element we want to add to current java search scope
* @throws JavaModelException May happen if some Java Model info are not available
*/
public void add(IJavaElement element) throws JavaModelException {
IPath containerPath = null;
String containerPathToString = null;
PackageFragmentRoot root = null;
int includeMask = SOURCES | APPLICATION_LIBRARIES | SYSTEM_LIBRARIES;
switch (element.getElementType()) {
case IJavaElement.JAVA_MODEL:
// a workspace sope should be used
break;
case IJavaElement.JAVA_PROJECT:
add((JavaProject) element, null, includeMask, new HashSet(2), new HashSet(2), null);
break;
case IJavaElement.PACKAGE_FRAGMENT_ROOT:
root = (PackageFragmentRoot) element;
IPath rootPath = root.internalPath();
containerPath =
root.getKind() == IPackageFragmentRoot.K_SOURCE ? root.getParent().getPath() : rootPath;
containerPathToString =
containerPath.getDevice() == null
? containerPath.toString()
: containerPath.toOSString();
IResource rootResource = root.resource();
String projectPath = root.getJavaProject().getPath().toString();
if (rootResource != null && rootResource.isAccessible()) {
String relativePath =
Util.relativePath(rootResource.getFullPath(), containerPath.segmentCount());
add(projectPath, relativePath, containerPathToString, false /*not a package*/, null);
} else {
add(projectPath, "", containerPathToString, false /*not a package*/, null); // $NON-NLS-1$
}
break;
case IJavaElement.PACKAGE_FRAGMENT:
root = (PackageFragmentRoot) element.getParent();
projectPath = root.getJavaProject().getPath().toString();
if (root.isArchive()) {
String relativePath = Util.concatWith(((PackageFragment) element).names, '/');
containerPath = root.getPath();
containerPathToString =
containerPath.getDevice() == null
? containerPath.toString()
: containerPath.toOSString();
add(projectPath, relativePath, containerPathToString, true /*package*/, null);
} else {
IResource resource = ((JavaElement) element).resource();
if (resource != null) {
if (resource.isAccessible()) {
containerPath =
root.getKind() == IPackageFragmentRoot.K_SOURCE
? root.getParent().getPath()
: root.internalPath();
} else {
// for working copies, get resource container full path
containerPath = resource.getParent().getFullPath();
}
containerPathToString =
containerPath.getDevice() == null
? containerPath.toString()
: containerPath.toOSString();
String relativePath =
Util.relativePath(resource.getFullPath(), containerPath.segmentCount());
add(projectPath, relativePath, containerPathToString, true /*package*/, null);
}
}
break;
default:
// remember sub-cu (or sub-class file) java elements
if (element instanceof IMember) {
if (this.elements == null) {
this.elements = new ArrayList();
}
this.elements.add(element);
}
root = (PackageFragmentRoot) element.getAncestor(IJavaElement.PACKAGE_FRAGMENT_ROOT);
projectPath = root.getJavaProject().getPath().toString();
String relativePath;
if (root.getKind() == IPackageFragmentRoot.K_SOURCE) {
containerPath = root.getParent().getPath();
relativePath =
Util.relativePath(
getPath(element, false /*full path*/),
root.getJavaProject().getPath().segmentCount() /*remove project segment*/);
} else {
containerPath = root.internalPath();
relativePath = getPath(element, true /*relative path*/).toString();
}
containerPathToString =
containerPath.getDevice() == null
? containerPath.toString()
: containerPath.toOSString();
add(projectPath, relativePath, containerPathToString, false /*not a package*/, null);
}
if (root != null)
addEnclosingProjectOrJar(
root.getKind() == IPackageFragmentRoot.K_SOURCE
? root.getParent().getPath()
: root.getPath());
}
/**
* Add a path to current java search scope or all project fragment roots if null. Use project
* resolved classpath to retrieve and store access restriction on each classpath entry. Recurse if
* dependent projects are found.
*
* @param javaProject Project used to get resolved classpath entries
* @param pathToAdd Path to add in case of single element or null if user want to add all project
* package fragment roots
* @param includeMask Mask to apply on classpath entries
* @param projectsToBeAdded Set to avoid infinite recursion
* @param visitedProjects Set to avoid adding twice the same project
* @param referringEntry Project raw entry in referring project classpath
* @throws JavaModelException May happen while getting java model info
*/
void add(
JavaProject javaProject,
IPath pathToAdd,
int includeMask,
HashSet projectsToBeAdded,
HashSet visitedProjects,
IClasspathEntry referringEntry)
throws JavaModelException {
IProject project = javaProject.getProject();
if (!project.isAccessible() || !visitedProjects.add(project)) return;
IPath projectPath = project.getFullPath();
String projectPathString = projectPath.toString();
addEnclosingProjectOrJar(projectPath);
IClasspathEntry[] entries = javaProject.getResolvedClasspath();
IJavaModel model = javaProject.getJavaModel();
JavaModelManager.PerProjectInfo perProjectInfo = javaProject.getPerProjectInfo();
for (int i = 0, length = entries.length; i < length; i++) {
IClasspathEntry entry = entries[i];
AccessRuleSet access = null;
ClasspathEntry cpEntry = (ClasspathEntry) entry;
if (referringEntry != null) {
// Add only exported entries.
// Source folder are implicitly exported.
if (!entry.isExported() && entry.getEntryKind() != IClasspathEntry.CPE_SOURCE) {
continue;
}
cpEntry = cpEntry.combineWith((ClasspathEntry) referringEntry);
// cpEntry = ((ClasspathEntry)referringEntry).combineWith(cpEntry);
}
access = cpEntry.getAccessRuleSet();
switch (entry.getEntryKind()) {
case IClasspathEntry.CPE_LIBRARY:
IClasspathEntry rawEntry = null;
Map rootPathToRawEntries = perProjectInfo.rootPathToRawEntries;
if (rootPathToRawEntries != null) {
rawEntry = (IClasspathEntry) rootPathToRawEntries.get(entry.getPath());
}
if (rawEntry == null) break;
rawKind:
switch (rawEntry.getEntryKind()) {
case IClasspathEntry.CPE_LIBRARY:
case IClasspathEntry.CPE_VARIABLE:
if ((includeMask & APPLICATION_LIBRARIES) != 0) {
IPath path = entry.getPath();
if (pathToAdd == null || pathToAdd.equals(path)) {
Object target = JavaModel.getTarget(path, false /*don't check existence*/);
if (target instanceof IFolder) // case of an external folder
path = ((IFolder) target).getFullPath();
String pathToString =
path.getDevice() == null ? path.toString() : path.toOSString();
add(
projectPath.toString(),
"",
pathToString,
false /*not a package*/,
access); //$NON-NLS-1$
addEnclosingProjectOrJar(entry.getPath());
}
}
break;
case IClasspathEntry.CPE_CONTAINER:
IClasspathContainer container =
JavaCore.getClasspathContainer(rawEntry.getPath(), javaProject);
if (container == null) break;
switch (container.getKind()) {
case IClasspathContainer.K_APPLICATION:
if ((includeMask & APPLICATION_LIBRARIES) == 0) break rawKind;
break;
case IClasspathContainer.K_SYSTEM:
case IClasspathContainer.K_DEFAULT_SYSTEM:
if ((includeMask & SYSTEM_LIBRARIES) == 0) break rawKind;
break;
default:
break rawKind;
}
IPath path = entry.getPath();
if (pathToAdd == null || pathToAdd.equals(path)) {
Object target = JavaModel.getTarget(path, false /*don't check existence*/);
if (target instanceof IFolder) // case of an external folder
path = ((IFolder) target).getFullPath();
String pathToString =
path.getDevice() == null ? path.toString() : path.toOSString();
add(
projectPath.toString(),
"",
pathToString,
false /*not a package*/,
access); //$NON-NLS-1$
addEnclosingProjectOrJar(entry.getPath());
}
break;
}
break;
case IClasspathEntry.CPE_PROJECT:
if ((includeMask & REFERENCED_PROJECTS) != 0) {
IPath path = entry.getPath();
if (pathToAdd == null || pathToAdd.equals(path)) {
JavaProject referencedProject = (JavaProject) model.getJavaProject(path.toOSString());
if (!projectsToBeAdded.contains(
referencedProject)) { // do not recurse if depending project was used to create
// the scope
add(
referencedProject,
null,
includeMask,
projectsToBeAdded,
visitedProjects,
cpEntry);
}
}
}
break;
case IClasspathEntry.CPE_SOURCE:
if ((includeMask & SOURCES) != 0) {
IPath path = entry.getPath();
if (pathToAdd == null || pathToAdd.equals(path)) {
add(
projectPath.toString(),
Util.relativePath(path, projectPath.segmentCount() /*remove project segment*/),
projectPathString,
false /*not a package*/,
access);
}
}
break;
}
}
}