Examples with SetDataResponse org.apache.zookeeper_voltpatches.proto.SetDataResponse used on opensource projects

Example 1 with SetDataResponse

use of org.apache.zookeeper_voltpatches.proto.SetDataResponse in project voltdb by VoltDB.

the class SetDataResponse method equals.

@Override
public boolean equals(Object peer_) {
    if (!(peer_ instanceof SetDataResponse)) {
        return false;
    }
    if (peer_ == this) {
        return true;
    }
    SetDataResponse peer = (SetDataResponse) peer_;
    boolean ret = false;
    ret = stat.equals(peer.stat);
    if (!ret)
        return ret;
    return ret;
}

Example 2 with SetDataResponse

use of org.apache.zookeeper_voltpatches.proto.SetDataResponse in project voltdb by VoltDB.

the class ZooKeeper method setData.

/**
     * Set the data for the node of the given path if such a node exists and the
     * given version matches the version of the node (if the given version is
     * -1, it matches any node's versions). Return the stat of the node.
     * <p>
     * This operation, if successful, will trigger all the watches on the node
     * of the given path left by getData calls.
     * <p>
     * A KeeperException with error code KeeperException.NoNode will be thrown
     * if no node with the given path exists.
     * <p>
     * A KeeperException with error code KeeperException.BadVersion will be
     * thrown if the given version does not match the node's version.
     * <p>
     * The maximum allowable size of the data array is 1 MB (1,048,576 bytes).
     * Arrays larger than this will cause a KeeperExecption to be thrown.
     *
     * @param path
     *            the path of the node
     * @param data
     *            the data to set
     * @param version
     *            the expected matching version
     * @return the state of the node
     * @throws InterruptedException
     *             If the server transaction is interrupted.
     * @throws KeeperException
     *             If the server signals an error with a non-zero error code.
     * @throws IllegalArgumentException
     *             if an invalid path is specified
     */
public Stat setData(final String path, byte[] data, int version) throws KeeperException, InterruptedException {
    verbotenThreadCheck();
    final String clientPath = path;
    PathUtils.validatePath(clientPath);
    final String serverPath = prependChroot(clientPath);
    RequestHeader h = new RequestHeader();
    h.setType(ZooDefs.OpCode.setData);
    SetDataRequest request = new SetDataRequest();
    request.setPath(serverPath);
    request.setData(data);
    request.setVersion(version);
    SetDataResponse response = new SetDataResponse();
    ReplyHeader r = cnxn.submitRequest(h, request, response, null);
    if (r.getErr() != 0) {
        throw KeeperException.create(KeeperException.Code.get(r.getErr()), clientPath);
    }
    return response.getStat();
}

Example 3 with SetDataResponse

use of org.apache.zookeeper_voltpatches.proto.SetDataResponse in project voltdb by VoltDB.

the class ZooKeeper method exists.

/**
     * Return the stat of the node of the given path. Return null if no such a
     * node exists.
     * <p>
     * If the watch is non-null and the call is successful (no exception is
     * thrown), a watch will be left on the node with the given path. The watch
     * will be triggered by a successful operation that creates/delete the node
     * or sets the data on the node.
     *
     * @param path
     *            the node path
     * @param watcher
     *            explicit watcher
     * @return the stat of the node of the given path; return null if no such a
     *         node exists.
     * @throws KeeperException
     *             If the server signals an error
     * @throws InterruptedException
     *             If the server transaction is interrupted.
     * @throws IllegalArgumentException
     *             if an invalid path is specified
     */
public Stat exists(final String path, Watcher watcher) throws KeeperException, InterruptedException {
    verbotenThreadCheck();
    final String clientPath = path;
    PathUtils.validatePath(clientPath);
    // the watch contains the un-chroot path
    WatchRegistration wcb = null;
    if (watcher != null) {
        wcb = new ExistsWatchRegistration(watcher, clientPath);
    }
    final String serverPath = prependChroot(clientPath);
    RequestHeader h = new RequestHeader();
    h.setType(ZooDefs.OpCode.exists);
    ExistsRequest request = new ExistsRequest();
    request.setPath(serverPath);
    request.setWatch(watcher != null);
    SetDataResponse response = new SetDataResponse();
    ReplyHeader r = cnxn.submitRequest(h, request, response, wcb);
    if (r.getErr() != 0) {
        if (r.getErr() == KeeperException.Code.NONODE.intValue()) {
            return null;
        }
        throw KeeperException.create(KeeperException.Code.get(r.getErr()), clientPath);
    }
    return response.getStat().getCzxid() == -1 ? null : response.getStat();
}

Example 4 with SetDataResponse

use of org.apache.zookeeper_voltpatches.proto.SetDataResponse in project voltdb by VoltDB.

the class SetDataResponse method compareTo.

public int compareTo(Object peer_) throws ClassCastException {
    if (!(peer_ instanceof SetDataResponse)) {
        throw new ClassCastException("Comparing different types of records.");
    }
    SetDataResponse peer = (SetDataResponse) peer_;
    int ret = 0;
    ret = stat.compareTo(peer.stat);
    if (ret != 0)
        return ret;
    return ret;
}

Example 5 with SetDataResponse

use of org.apache.zookeeper_voltpatches.proto.SetDataResponse in project voltdb by VoltDB.

the class ZooKeeper method exists.

/**
     * The Asynchronous version of exists. The request doesn't actually until
     * the asynchronous callback is called.
     *
     * @see #exists(String, boolean)
     */
public void exists(final String path, Watcher watcher, StatCallback cb, Object ctx) {
    verbotenThreadCheck();
    final String clientPath = path;
    PathUtils.validatePath(clientPath);
    // the watch contains the un-chroot path
    WatchRegistration wcb = null;
    if (watcher != null) {
        wcb = new ExistsWatchRegistration(watcher, clientPath);
    }
    final String serverPath = prependChroot(clientPath);
    RequestHeader h = new RequestHeader();
    h.setType(ZooDefs.OpCode.exists);
    ExistsRequest request = new ExistsRequest();
    request.setPath(serverPath);
    request.setWatch(watcher != null);
    SetDataResponse response = new SetDataResponse();
    cnxn.queuePacket(h, new ReplyHeader(), request, response, cb, clientPath, serverPath, ctx, wcb);
}