/**
* De-compresses given byte array with a zip input stream with entry name {@link
* #OBJECT_ZIP_ENTRY}.
*
* @param compressedBytes bytes to un-compress
* @return byte array with de-compressed source.
* @throws IOException if there is an unrecoverable problem while de-compressing bytes.
*/
public byte[] decompress(final byte[] compressedBytes) throws IOException {
ZipInputStream zis = null;
ByteArrayOutputStream baos = null;
ByteArrayInputStream bais = null;
try {
bais = new ByteArrayInputStream(compressedBytes);
zis = new ZipInputStream(bais);
// Get entry so that we can start reading.
zis.getNextEntry();
baos = new ByteArrayOutputStream(compressedBytes.length);
IOUtils.copyInputToOuputStream(zis, baos);
baos.flush();
return baos.toByteArray();
} finally {
IOUtils.closeHard(bais);
IOUtils.closeHard(zis);
IOUtils.closeHard(baos);
}
}
/**
* Compresses given byte array by creating a zip output stream with entry name {@link
* #OBJECT_ZIP_ENTRY}.
*
* @param bytes bytes to compress
* @return byte array with compressed source.
* @throws IOException if there is an unrecoverable problem while compressing bytes.
* @see #decompress(byte[])
*/
public byte[] compress(final byte[] bytes) throws IOException {
ByteArrayOutputStream baos = null;
ZipOutputStream zos = null;
ByteArrayInputStream bais = null;
try {
baos = new ByteArrayOutputStream();
bais = new ByteArrayInputStream(bytes);
zos = new ZipOutputStream(baos);
// Create entry as required by ZipOutputStream
final ZipEntry entry = new ZipEntry(OBJECT_ZIP_ENTRY);
zos.putNextEntry(entry);
IOUtils.copyInputToOuputStream(bais, zos);
zos.flush();
baos.flush();
zos.closeEntry();
return baos.toByteArray();
} finally {
IOUtils.closeHard(bais);
IOUtils.closeHard(baos);
IOUtils.closeHard(zos);
}
}
