@Override
public void run(IProgressMonitor monitor)
throws InvocationTargetException, OperationCanceledException {
monitor.beginTask(
NLS.bind(
DataTransferMessages.SmartImportWizardPage_expandingArchive,
archive.getName(),
destination.getName()),
1);
TarFile tarFile = null;
ZipFile zipFile = null;
ILeveledImportStructureProvider importStructureProvider = null;
try {
if (ArchiveFileManipulations.isTarFile(archive.getAbsolutePath())) {
tarFile = new TarFile(archive);
importStructureProvider = new TarLeveledStructureProvider(tarFile);
} else if (ArchiveFileManipulations.isZipFile(archive.getAbsolutePath())) {
zipFile = new ZipFile(archive);
importStructureProvider = new ZipLeveledStructureProvider(zipFile);
}
LinkedList<Object> toProcess = new LinkedList<>();
toProcess.add(importStructureProvider.getRoot());
while (!toProcess.isEmpty()) {
if (monitor.isCanceled()) {
throw new OperationCanceledException();
}
Object current = toProcess.pop();
String path = importStructureProvider.getFullPath(current);
File toCreate = null;
if (path.equals("/")) { // $NON-NLS-1$
toCreate = destination;
} else {
toCreate = new File(destination, path);
}
if (importStructureProvider.isFolder(current)) {
toCreate.mkdirs();
} else {
try (InputStream content = importStructureProvider.getContents(current)) {
// known IImportStructureProviders already log an
// exception before returning null
if (content != null) {
Files.copy(content, toCreate.toPath());
}
}
}
List<?> children = importStructureProvider.getChildren(current);
if (children != null) {
toProcess.addAll(children);
}
}
monitor.worked(1);
monitor.done();
} catch (Exception ex) {
throw new InvocationTargetException(ex);
} finally {
if (importStructureProvider != null) {
importStructureProvider.closeArchive();
}
if (tarFile != null)
try {
tarFile.close();
} catch (IOException ex) {
}
if (zipFile != null)
try {
zipFile.close();
} catch (IOException ex) {
}
}
}
static boolean isValidArchive(File file) {
return ArchiveFileManipulations.isZipFile(file.getAbsolutePath())
|| ArchiveFileManipulations.isTarFile(file.getAbsolutePath());
}
