private void extract(final String inputFile, final String outputDir) throws IOException {
FileInputStream fileInputStream = null;
ZipArchiveInputStream zipArchiveInputStream = null;
FileOutputStream fileOutputStream = null;
try {
Log.d(this.getClass().getName(), "Will extract " + inputFile + " to " + outputDir);
byte[] buffer = new byte[8192];
fileInputStream = new FileInputStream(inputFile);
// We use null as encoding.
zipArchiveInputStream = new ZipArchiveInputStream(fileInputStream, null, true);
ArchiveEntry entry;
while ((entry = zipArchiveInputStream.getNextEntry()) != null) {
Log.d(this.getClass().getName(), "Extracting entry " + entry.getName());
File file = new File(outputDir, entry.getName());
if (entry.isDirectory()) {
file.mkdirs();
} else {
file.getParentFile().mkdirs();
fileOutputStream = new FileOutputStream(file);
int bytesRead;
while ((bytesRead = zipArchiveInputStream.read(buffer, 0, buffer.length)) != -1)
fileOutputStream.write(buffer, 0, bytesRead);
fileOutputStream.close();
fileOutputStream = null;
}
}
// Delete the zip file
File zipFile = new File(inputFile);
zipFile.delete();
} catch (Exception e) {
Log.e("UnzipperTask", "Error unzipping file: " + inputFile + ", " + e);
} finally {
try {
zipArchiveInputStream.close();
fileInputStream.close();
if (fileOutputStream != null) {
fileOutputStream.close();
}
} catch (NullPointerException ex) {
Log.e(this.getClass().getName(), "Error closing the file streams.", ex);
} catch (IOException ex) {
Log.e(this.getClass().getName(), "Error closing the file streams.", ex);
}
}
}
@Override
public List<XarEntry> getEntries(File xarFile) throws IOException {
List<XarEntry> documents = null;
FileInputStream fis = new FileInputStream(xarFile);
ZipArchiveInputStream zis = new ZipArchiveInputStream(fis);
try {
for (ZipArchiveEntry zipEntry = zis.getNextZipEntry();
zipEntry != null;
zipEntry = zis.getNextZipEntry()) {
if (!zipEntry.isDirectory()) {
try {
XarPageLimitedHandler documentHandler =
new XarPageLimitedHandler(this.componentManager);
parseDocument(zis, documentHandler);
if (documents == null) {
documents = new ArrayList<XarEntry>();
}
XarEntry xarEntry = documentHandler.getXarEntry();
xarEntry.setEntryName(zipEntry.getName());
documents.add(xarEntry);
} catch (NotADocumentException e) {
// Impossible to know that before parsing
} catch (Exception e) {
this.logger.error("Failed to parse document [" + zipEntry.getName() + "]", e);
}
}
}
} finally {
zis.close();
}
return documents != null ? documents : Collections.<XarEntry>emptyList();
}