/**
* Create an compressor output stream from an compressor name and an input stream.
*
* @param name the compressor name, i.e. "gz", "bzip2", "xz", or "pack200"
* @param outputStream the output stream
* @return the compressor output stream
* @throws CompressorException if the archiver name is not known
* @throws IllegalArgumentException if the archiver name or stream is null
*/
@Override
public CompressorOutputStream createCompressorOutputStream(
final String name, final OutputStream outputStream) throws CompressorException {
checkNotNull(outputStream, "outputStream");
checkNotNull(name, "fileName");
try {
if (GZIP.equalsIgnoreCase(name)) {
return createGZipCompressorOutputStream(outputStream);
} else if (BZIP2.equalsIgnoreCase(name)) {
return createBZip2CompressorOutputStream(outputStream);
} else if (XZ.equalsIgnoreCase(name)) {
return createXZCompressorOutputStream(outputStream);
} else if (PACK200.equalsIgnoreCase(name)) {
return createPack200CompressorOutputStream(outputStream);
} else if (nameDetectionFallback && transparentSignatureDetection) {
return createForwardingCompressorOutputStream(outputStream);
}
} catch (IOException e) {
throw new CompressorException("Could not create CompressorOutputStream", e);
}
throw new CompressorException("Compressor: " + name + " not found.");
}
@Override
public CompressorInputStream createCompressorInputStream(
final String fileName, final InputStream inputStream) throws CompressorException {
checkNotNull(inputStream, "inputStream");
checkNotNull(fileName, "fileName");
try {
if (GZIP.equalsIgnoreCase(fileName)) {
return createGZipCompressorInputStream(inputStream);
} else if (BZIP2.equalsIgnoreCase(fileName)) {
return createBZip2CompressorInputStream(inputStream);
} else if (XZ.equalsIgnoreCase(fileName)) {
return createXZCompressorInputStream(inputStream);
} else if (PACK200.equalsIgnoreCase(fileName)) {
return createPack200CompressorInputStream(inputStream);
} else if (nameDetectionFallback) {
return createCompressorInputStream(inputStream);
}
} catch (IOException e) {
throw new CompressorException("Could not create CompressorInputStream.", e);
}
throw new CompressorException("Compressor: " + fileName + " not found.");
}