Example usage for org.apache.zookeeper KeeperException code

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Usage

From source file:com.edmunds.etm.common.impl.UrlTokenRepository.java

License:Apache License

/**
 * Deletes the specified token.//www.  ja v  a 2 s  . c  om
 *
 * @param name name of the token to delete
 * @throws TokenNotFoundException if the token was not found
 */
public void deleteToken(String name) throws TokenNotFoundException {
    String path = controllerPaths.getUrlToken(name);
    try {
        connection.delete(path, -1);
    } catch (KeeperException e) {
        if (e.code() == Code.NONODE) {
            throw new TokenNotFoundException(e);
        } else {
            logger.error(String.format("Error deleting URL token: %s", name), e);
            throw new RuntimeException(e);
        }
    } catch (InterruptedException e) {
        throw new RuntimeException(e);
    }
}

From source file:com.edmunds.etm.management.impl.VipManager.java

License:Apache License

private void createPersistentNode(String path, final byte[] data) {
    AsyncCallback.StringCallback cb = new AsyncCallback.StringCallback() {
        @Override//from  w ww  . j a  va2s .c om
        public void processResult(int rc, String p, Object ctx, String name) {
            onPersistentNodeCreated(KeeperException.Code.get(rc), p, data);
        }
    };
    connection.createPersistent(path, data, cb, null);
}

From source file:com.edmunds.etm.management.impl.VipManager.java

License:Apache License

private void onPersistentNodeCreated(KeeperException.Code rc, String path, byte[] data) {
    if (rc == KeeperException.Code.OK) {
        logger.debug(String.format("Created load balancer node: %s", path));
    } else if (rc == KeeperException.Code.NODEEXISTS) {
        logger.warn(String.format("Attempted to create existing node %s, updating instead", path));
        setNodeData(path, data);/*from   w  w w .j  av a  2 s.co  m*/
    } else if (isRetryableError(rc)) {
        logger.warn(String.format("Error %s while creating node %s, retrying", rc, path));
        createPersistentNode(path, data);
    } else {
        // Unrecoverable error
        String message = String.format("Error %s while creating node: %s", rc, path);
        logger.error(message);
        // TODO: Flag error in central error reporter
    }
}

From source file:com.edmunds.etm.management.impl.VipManager.java

License:Apache License

private void deleteNode(String path) {
    AsyncCallback.VoidCallback cb = new AsyncCallback.VoidCallback() {
        @Override/*from ww w.  jav a  2s.  c om*/
        public void processResult(int rc, String path, Object ctx) {
            onNodeDeleted(KeeperException.Code.get(rc), path);
        }
    };
    connection.delete(path, -1, cb, null);
}

From source file:com.edmunds.etm.management.impl.VipManager.java

License:Apache License

private void onNodeDeleted(KeeperException.Code rc, String path) {
    if (rc == KeeperException.Code.OK) {
        logger.debug(String.format("Deleted node: %s", path));
    } else if (rc == KeeperException.Code.NONODE) {
        logger.warn(String.format("Node already deleted: %s", path));
    } else if (isRetryableError(rc)) {
        logger.warn(String.format("Error %s while deleting node %s, retrying", rc, path));
        deleteNode(path);/*from  w  ww .  ja  va2s  .co  m*/
    } else {
        // Unrecoverable error
        String message = String.format("Error %s while deleting node: %s", rc, path);
        logger.error(message);
        // TODO: Flag error in central error reporter
    }
}

From source file:com.edmunds.etm.management.impl.VipManager.java

License:Apache License

private void setNodeData(final String path, final byte[] data) {
    AsyncCallback.StatCallback cb = new AsyncCallback.StatCallback() {
        @Override//  w w  w.  ja  va2  s  .  c  om
        public void processResult(int rc, String p, Object ctx, Stat stat) {
            onNodeDataSet(KeeperException.Code.get(rc), p, data);
        }
    };
    connection.setData(path, data, -1, cb, null);
}

From source file:com.edmunds.etm.management.impl.VipManager.java

License:Apache License

private void onNodeDataSet(KeeperException.Code rc, String path, byte[] data) {

    if (rc == KeeperException.Code.OK) {
        logger.debug(String.format("Data set for node: %s", path));
    } else if (rc == KeeperException.Code.NONODE) {
        logger.warn(String.format("Attempted to update nonexistent node %s, creating instead", path));
    } else if (isRetryableError(rc)) {
        logger.warn(String.format("Error %s while setting data for node %s, retrying", rc, path));
        setNodeData(path, data);//from  w  w w . j  a v a  2  s.c o m
    } else {
        // Unrecoverable error
        String message = String.format("Error %s while setting data for node: %s", rc, path);
        logger.error(message);
        // TODO: Flag error in central error reporter
    }
}

From source file:com.edmunds.etm.rules.impl.AgentConfigurationManager.java

License:Apache License

private void deployConfiguration(String nodePath, final byte[] configData) {
    final AsyncCallback.StatCallback cb = new AsyncCallback.StatCallback() {
        @Override// ww w  .j a  va  2 s  .c  om
        public void processResult(int rc, String path, Object ctx, Stat stat) {
            onConfigurationSetData(KeeperException.Code.get(rc), path, configData);
        }
    };
    connection.setData(nodePath, configData, -1, cb, null);

    if (logger.isDebugEnabled()) {
        logRuleSet(configData);
    }
}

From source file:com.edmunds.etm.rules.impl.AgentConfigurationManager.java

License:Apache License

protected void onConfigurationSetData(KeeperException.Code rc, String path, byte[] data) {
    if (rc == KeeperException.Code.OK) {
        return;/*from   w  w w . j  a va2  s . com*/
    }

    if (ZooKeeperUtils.isRetryableError(rc)) {
        // Retry recoverable errors
        logger.warn(String.format("Error %s while setting node %s, retrying", rc, path));
        deployConfiguration(path, data);
    } else {
        // Log other errors
        logger.error(String.format("Error %s while setting node %s", rc, path));
    }
}

From source file:com.edmunds.zookeeper.util.ZooKeeperUtils.java

License:Apache License

public static boolean isRetryableError(KeeperException.Code code) {
    return retryableErrors.contains(code);
}