/**
* Helper method - returns the targeted item (IResource if internal or IFileHandle if external),
* or null if unbound Internal items must be referred to using container relative paths.
*/
public static Object getTarget(IContainer container, IPath path, boolean checkResourceExistence) {
if (path == null) return null;
// lookup - inside the container
if (path.getDevice() == null) { // container relative paths should not
// contain a device
// (see http://dev.eclipse.org/bugs/show_bug.cgi?id=18684)
// (case of a workspace rooted at d:\ )
IResource resource = container.findMember(path);
if (resource != null) {
if (!checkResourceExistence || resource.exists()) return resource;
return null;
}
}
// if path is relative, it cannot be an external path
// (see http://dev.eclipse.org/bugs/show_bug.cgi?id=22517)
if (!path.isAbsolute()) return null;
// lookup - outside the container
IFileHandle externalFile = EnvironmentPathUtils.getFile(path);
if (externalFile != null) {
if (!checkResourceExistence) {
return externalFile;
} else if (existingExternalFiles.contains(externalFile)) {
return externalFile;
} else {
if (ModelManager.ZIP_ACCESS_VERBOSE) {
System.out.println(
"("
+ Thread.currentThread()
+ ") [Model.getTarget(...)] Checking existence of "
+ path.toString()); // $NON-NLS-1$ //$NON-NLS-2$
}
if (externalFile.exists()) {
// cache external file
existingExternalFiles.add(externalFile);
return externalFile;
}
}
}
return null;
}
