public int lock(String userName) throws ClientException {
LockInfo lockInfo = getLockInfo();
boolean canLock = false;
int returnCode = LOCKED_OK;
if (lockInfo != null) {
// document is already locked
String lockingUser = lockInfo.getUserName();
if (lockingUser == null) {
canLock = true;
} else {
if (lockingUser.equals(userName)) {
canLock = true;
return ALREADY_LOCKED_BY_YOU;
} else {
if (isLockExpired()) {
canLock = true;
returnCode = LOCK_BORROWED;
} else {
canLock = false;
return CAN_NOT_BORROW_LOCK;
}
}
}
}
CoreSession session = getSessionFromDoc(targetDoc);
session.setLock(targetDoc.getRef(), getLockToken(userName));
session.save();
return returnCode;
}
public int unlock(String userName) throws ClientException {
LockInfo lockInfo = getLockInfo();
boolean canUnLock = false;
int returnCode = NOT_LOCKED;
if (lockInfo != null) {
// document is already locked
String lockingUser = lockInfo.getUserName();
if (lockingUser == null) {
canUnLock = true;
returnCode = NOT_LOCKED;
} else {
if (lockingUser.equals(userName)) {
canUnLock = true;
returnCode = ALREADY_LOCKED_BY_YOU;
} else {
if (isLockExpired()) {
canUnLock = true;
returnCode = LOCK_EXPIRED;
} else {
canUnLock = false;
return CAN_NOT_UNLOCK;
}
}
}
}
if (canUnLock) {
getSessionFromDoc(targetDoc).unlock(targetDoc.getRef());
}
return returnCode;
}
public boolean isLocked() throws ClientException {
LockInfo info = getLockInfo();
if (info == null || info.getUserName() == null) {
return false;
}
return !isLockExpired();
}
