protected File copyZipLocally(String fileName, File unzipDir) {
InputStream is = null;
FileOutputStream os = null;
try {
is = sourceDir.getInputStream(fileName, true);
if (is != null) {
File localZipFile = new File(unzipDir, UUID.randomUUID().toString() + ".zip");
os = new FileOutputStream(localZipFile);
IOUtils.copy(is, os);
return localZipFile;
} else {
String msg = String.format("Failed to open %s.", fileName);
throw new IoException(msg);
}
} catch (IOException e) {
throw new IoException(e);
} finally {
IOUtils.closeQuietly(is);
IOUtils.closeQuietly(os);
}
}
@Override
public void handle(
Message inputMessage, ISendMessageCallback callback, boolean unitOfWorkBoundaryReached) {
if (inputMessage instanceof TextMessage) {
List<String> files = ((TextMessage) inputMessage).getPayload();
ArrayList<String> filePaths = new ArrayList<String>();
for (String fileName : files) {
log(LogLevel.INFO, "Preparing to extract file : %s", fileName);
FileInfo sourceZipFile = sourceDir.listFile(fileName);
if (mustExist && sourceZipFile == null) {
throw new IoException(String.format("Could not find file to extract: %s", fileName));
}
if (sourceZipFile != null) {
File unzipDir = new File(LogUtils.getLogDir(), "unzip");
unzipDir.mkdirs();
File localZipFile = copyZipLocally(fileName, unzipDir);
ZipFile zipFile = getNewZipFile(localZipFile);
InputStream in = null;
OutputStream out = null;
try {
String targetDirNameResolved =
resolveParamsAndHeaders(targetRelativePath, inputMessage);
if (targetSubDir) {
targetDirNameResolved =
targetDirNameResolved
+ "/"
+ FilenameUtils.removeExtension(
new FileInfo(fileName, false, 0, 0).getName());
}
for (Enumeration<? extends ZipEntry> e = zipFile.entries(); e.hasMoreElements(); ) {
ZipEntry entry = e.nextElement();
if (!entry.isDirectory() && (extractEmptyFiles || entry.getSize() > 0)) {
String relativePathToEntry = targetDirNameResolved + "/" + entry.getName();
if (overwrite || targetDir.listFile(relativePathToEntry) == null) {
info("Unzipping %s", entry.getName());
out = targetDir.getOutputStream(relativePathToEntry, false);
in = zipFile.getInputStream(entry);
IOUtils.copy(in, out);
filePaths.add(relativePathToEntry);
} else if (!overwrite) {
info(
"Not unzipping %s. It already exists and the override property is not enabled",
entry.getName());
}
}
}
} catch (IOException e) {
throw new IoException(e);
} finally {
IOUtils.closeQuietly(in);
IOUtils.closeQuietly(out);
IOUtils.closeQuietly(zipFile);
FileUtils.deleteQuietly(localZipFile);
}
if (deleteOnComplete) {
sourceDir.delete(fileName);
}
log(LogLevel.INFO, "Extracted %s", fileName);
getComponentStatistics().incrementNumberEntitiesProcessed(threadNumber);
}
}
if (filePaths.size() > 0) {
callback.sendTextMessage(null, filePaths);
}
}
}