/** @return the thread encoded as data */
public byte[] getBytes() {
byte[] data = new byte[512];
BigEndian.setInt16(data, 0, recordType);
BigEndian.setInt32(data, 4, (int) parentId.getId());
System.arraycopy(parentId.getBytes(), 0, data, 4, 4);
System.arraycopy(nodeName.getBytes(), 0, data, 8, nodeName.getBytes().length);
return data;
}
/**
* Create catalog thread from existing data.
*
* @param src byte array contains catalog thread data.
*/
public CatalogThread(final byte[] src) {
byte[] data = new byte[512];
System.arraycopy(src, 0, data, 0, CATALOG_THREAD_SIZE);
recordType = BigEndian.getInt16(data, 0);
parentId = new CatalogNodeId(data, 4);
nodeName = new HfsUnicodeString(data, 8);
}
/*
* (non-Javadoc)
*
* @see org.jnode.fs.hfsplus.tree.AbstractKey#getBytes()
*/
public byte[] getBytes() {
int length = this.getKeyLength();
byte[] data = new byte[length];
BigEndian.setInt16(data, 0, length);
System.arraycopy(parentId.getBytes(), 0, data, 2, 4);
System.arraycopy(nodeName.getBytes(), 0, data, 6, (nodeName.getLength() * 2) + 2);
return data;
}
/**
* Create catalog key from existing data.
*
* @param src
* @param offset
*/
public CatalogKey(final byte[] src, final int offset) {
int currentOffset = offset;
byte[] ck = new byte[2];
System.arraycopy(src, currentOffset, ck, 0, 2);
// TODO Understand why the +2 is necessary
keyLength = BigEndian.getInt16(ck, 0) + 2;
currentOffset += 2;
ck = new byte[4];
System.arraycopy(src, currentOffset, ck, 0, 4);
parentId = new CatalogNodeId(ck, 0);
currentOffset += 4;
if (keyLength > MINIMUM_KEY_LENGTH) {
nodeName = new HfsUnicodeString(src, currentOffset);
}
}
