/**
* Create a new PeerID.
*
* @param b the ID
* @param hash use the hash of b as ID?
*/
public PeerID(byte[] b, boolean hash) {
if (hash) {
MessageDigest md = CryptoUtils.getMessageDigest();
id = md.digest(b);
} else {
id = b;
}
}
/**
* PeerID ist an unique ID for every peer.
*
* @author Wolfgang Ginolas
*/
public class PeerID implements Comparable<PeerID>, Serializable {
private static int idLen = CryptoUtils.getMessageDigest().getDigestLength();
private byte[] id;
/**
* Create a new PeerID.
*
* @param b the ID
* @param hash use the hash of b as ID?
*/
public PeerID(byte[] b, boolean hash) {
if (hash) {
MessageDigest md = CryptoUtils.getMessageDigest();
id = md.digest(b);
} else {
id = b;
}
}
/**
* Create a new PeerID
*
* @param addrStr the ID as Base64 String.
*/
public PeerID(String addrStr) {
id = Base64.decodeBase64(addrStr.getBytes());
}
/**
* The length of PeerIDs.
*
* @return the length in bytes
*/
public static int getIdLen() {
return idLen;
}
/**
* The ID as an byte array
*
* @return the bytes
*/
public byte[] getId() {
return id;
}
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final PeerID other = (PeerID) obj;
if (this.id != other.id && (this.id == null || !Arrays.equals(id, other.id))) {
return false;
}
return true;
}
@Override
public int hashCode() {
return Arrays.hashCode(id);
}
public int compareTo(PeerID o) {
int d = id.length - o.id.length;
if (d != 0) return d;
for (int i = 0; i < id.length; i++) {
d = id[i] - o.id[i];
if (d != 0) return d;
}
return 0;
}
@Override
public String toString() {
return new String(Base64.encodeBase64(id, false));
}
}