Example usage for org.apache.zookeeper KeeperException code

Introduction

In this page you can find the example usage for org.apache.zookeeper KeeperException code.

Prototype

Code code

To view the source code for org.apache.zookeeper KeeperException code.

Click Source Link

Usage

From source file:com.facebook.zookeeper.RecoveringZooKeeper.java

License:Apache License

private String createNonSequential(String path, byte[] data, List<ACL> acl, CreateMode createMode)
        throws KeeperException, InterruptedException {
    RetryCounter retryCounter = retryCounterFactory.create();
    while (true) {
        try {//from w w w  .j a  v  a 2s . com
            return zk.create(path, data, acl, createMode);
        } catch (KeeperException e) {
            switch (e.code()) {
            case NODEEXISTS:
                // Non-sequential node was successfully created
                return path;

            case CONNECTIONLOSS:
            case OPERATIONTIMEOUT:
                LOG.warn("Possibly transient ZooKeeper exception: " + e);
                if (!retryCounter.shouldRetry()) {
                    LOG.error("ZooKeeper create failed after " + retryCounter.getMaxRetries() + " retries");
                    throw e;
                }
                break;

            default:
                throw e;
            }
        }
        LOG.info("Retrying ZooKeeper after sleeping...");
        retryCounter.sleepUntilNextRetry();
        retryCounter.useRetry();
    }
}

From source file:com.facebook.zookeeper.RecoveringZooKeeper.java

License:Apache License

private String createEphemeralSequential(String path, byte[] data, List<ACL> acl, CreateMode createMode)
        throws KeeperException, InterruptedException {
    RetryCounter retryCounter = retryCounterFactory.create();
    boolean first = true;
    while (true) {
        try {//w w  w.jav  a 2s. c o m
            if (!first) {
                // Check if we succeeded on a previous attempt
                String myNode = findMyEphemeralSequentialNode(path);
                if (myNode != null) {
                    return myNode;
                }
            }
            first = false;
            return zk.create(path, data, acl, createMode);
        } catch (KeeperException e) {
            switch (e.code()) {
            case CONNECTIONLOSS:
            case OPERATIONTIMEOUT:
                LOG.warn("Possibly transient ZooKeeper exception: " + e);
                if (!retryCounter.shouldRetry()) {
                    LOG.error("ZooKeeper create failed after " + retryCounter.getMaxRetries() + " retries");
                    throw e;
                }
                break;

            default:
                throw e;
            }
        }
        LOG.info("Retrying ZooKeeper after sleeping...");
        retryCounter.sleepUntilNextRetry();
        retryCounter.useRetry();
    }
}

From source file:com.github.zkclient.exception.ZkException.java

License:Apache License

public static ZkException create(KeeperException e) {
    switch (e.code()) {
    // case DATAINCONSISTENCY:
    // return new DataInconsistencyException();
    // case CONNECTIONLOSS:
    // return new ConnectionLossException();
    case NONODE://w  w w .ja  va  2  s .  c  o m
        return new ZkNoNodeException(e);
    // case NOAUTH:
    // return new ZkNoAuthException();
    case BADVERSION:
        return new ZkBadVersionException(e);
    // case NOCHILDRENFOREPHEMERALS:
    // return new NoChildrenForEphemeralsException();
    case NODEEXISTS:
        return new ZkNodeExistsException(e);
    // case INVALIDACL:
    // return new ZkInvalidACLException();
    // case AUTHFAILED:
    // return new AuthFailedException();
    // case NOTEMPTY:
    // return new NotEmptyException();
    // case SESSIONEXPIRED:
    // return new SessionExpiredException();
    // case INVALIDCALLBACK:
    // return new InvalidCallbackException();

    default:
        return new ZkException(e);
    }
}

From source file:com.jxt.web.cluster.zookeeper.ZookeeperClient.java

License:Apache License

/**
 * do not create node in path suffix/*from ww w  .jav a2  s. com*/
 *
 * @throws PinpointZookeeperException
 * @throws InterruptedException
 */
public void createPath(String path) throws PinpointZookeeperException, InterruptedException {
    checkState();

    ZooKeeper zookeeper = this.zookeeper;
    int pos = 1;
    do {
        pos = path.indexOf('/', pos + 1);

        if (pos != -1) {
            try {
                String subPath = path.substring(0, pos);
                if (zookeeper.exists(subPath, false) != null) {
                    continue;
                }

                zookeeper.create(subPath, new byte[0], Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
            } catch (KeeperException exception) {
                if (exception.code() != Code.NODEEXISTS) {
                    handleException(exception);
                }
            }
        } else {
            pos = path.length();
        }
    } while (pos < path.length());
}

From source file:com.jxt.web.cluster.zookeeper.ZookeeperClient.java

License:Apache License

public String createNode(String zNodePath, byte[] data, CreateMode createMode)
        throws PinpointZookeeperException, InterruptedException {
    checkState();/*  ww w  .  ja  va2s.  com*/

    ZooKeeper zookeeper = this.zookeeper;
    try {
        if (zookeeper.exists(zNodePath, false) != null) {
            return zNodePath;
        }

        String pathName = zookeeper.create(zNodePath, data, Ids.OPEN_ACL_UNSAFE, createMode);
        return pathName;
    } catch (KeeperException exception) {
        if (exception.code() != Code.NODEEXISTS) {
            handleException(exception);
        }
    }
    return zNodePath;
}

From source file:com.jxt.web.cluster.zookeeper.ZookeeperClient.java

License:Apache License

public List<String> getChildren(String path, boolean watch)
        throws PinpointZookeeperException, InterruptedException {
    checkState();/*w w  w  . jav a2  s  .c o  m*/

    ZooKeeper zookeeper = this.zookeeper;
    try {
        return zookeeper.getChildren(path, watch);
    } catch (KeeperException exception) {
        if (exception.code() != Code.NONODE) {
            handleException(exception);
        }
    }

    return Collections.emptyList();
}

From source file:com.jxt.web.cluster.zookeeper.ZookeeperClient.java

License:Apache License

public void delete(String path) throws PinpointZookeeperException, InterruptedException {
    checkState();//  w w w .j av  a 2 s  .  co  m

    ZooKeeper zookeeper = this.zookeeper;
    try {
        zookeeper.delete(path, -1);
    } catch (KeeperException exception) {
        if (exception.code() != Code.NONODE) {
            handleException(exception);
        }
    }
}

From source file:com.jxt.web.cluster.zookeeper.ZookeeperClient.java

License:Apache License

public boolean exists(String path) throws PinpointZookeeperException, InterruptedException {
    checkState();//from ww  w  . ja va 2 s  .co m

    ZooKeeper zookeeper = this.zookeeper;
    try {
        Stat stat = zookeeper.exists(path, false);
        if (stat == null) {
            return false;
        }
    } catch (KeeperException exception) {
        if (exception.code() != Code.NODEEXISTS) {
            handleException(exception);
        }
    }
    return true;
}

From source file:com.jxt.web.cluster.zookeeper.ZookeeperClient.java

License:Apache License

private void handleException(KeeperException keeperException) throws PinpointZookeeperException {
    switch (keeperException.code()) {
    case CONNECTIONLOSS:
    case SESSIONEXPIRED:
        throw new ConnectionException(keeperException.getMessage(), keeperException);
    case AUTHFAILED:
    case INVALIDACL:
    case NOAUTH:/*from www . j ava 2 s.  c  o m*/
        throw new AuthException(keeperException.getMessage(), keeperException);
    case BADARGUMENTS:
    case BADVERSION:
    case NOCHILDRENFOREPHEMERALS:
    case NOTEMPTY:
    case NODEEXISTS:
        throw new BadOperationException(keeperException.getMessage(), keeperException);
    case NONODE:
        throw new NoNodeException(keeperException.getMessage(), keeperException);
    case OPERATIONTIMEOUT:
        throw new TimeoutException(keeperException.getMessage(), keeperException);
    default:
        throw new UnknownException(keeperException.getMessage(), keeperException);
    }
}

From source file:com.lami.tuomatuo.mq.zookeeper.server.auth.SASLAuthenticationProvider.java

License:Apache License

public KeeperException.Code handleAuthentication(ServerCnxn cnxn, byte[] authData) {
    // Should never call this: SASL authentication is negotiated at session initiation.
    // TODO: consider substituting current implementation of direct ClientCnxn manipulation with
    // a call to this method (SASLAuthenticationProvider:handleAuthentication()) at session initiation.
    return KeeperException.Code.AUTHFAILED;

}