Examples with RequestHeader org.apache.zookeeper.proto.RequestHeader used on opensource projects

Example 26 with RequestHeader

use of org.apache.zookeeper.proto.RequestHeader in project zookeeper by apache.

the class ZooKeeper method create.

/**
     * same as {@link #create(String, byte[], List, CreateMode, Stat)} but
     * allows for specifying a TTL when mode is {@link CreateMode#PERSISTENT_WITH_TTL}
     * or {@link CreateMode#PERSISTENT_SEQUENTIAL_WITH_TTL}. If the znode has not been modified
     * within the given TTL, it will be deleted once it has no children. The TTL unit is
     * milliseconds and must be greater than 0 and less than or equal to
     * {@link EphemeralType#MAX_TTL}.
     */
public String create(final String path, byte[] data, List<ACL> acl, CreateMode createMode, Stat stat, long ttl) throws KeeperException, InterruptedException {
    final String clientPath = path;
    PathUtils.validatePath(clientPath, createMode.isSequential());
    EphemeralType.validateTTL(createMode, ttl);
    final String serverPath = prependChroot(clientPath);
    RequestHeader h = new RequestHeader();
    setCreateHeader(createMode, h);
    Create2Response response = new Create2Response();
    if (acl != null && acl.size() == 0) {
        throw new KeeperException.InvalidACLException();
    }
    Record record = makeCreateRecord(createMode, serverPath, data, acl, ttl);
    ReplyHeader r = cnxn.submitRequest(h, record, response, null);
    if (r.getErr() != 0) {
        throw KeeperException.create(KeeperException.Code.get(r.getErr()), clientPath);
    }
    if (stat != null) {
        DataTree.copyStat(response.getStat(), stat);
    }
    if (cnxn.chrootPath == null) {
        return response.getPath();
    } else {
        return response.getPath().substring(cnxn.chrootPath.length());
    }
}

Example 27 with RequestHeader

use of org.apache.zookeeper.proto.RequestHeader in project zookeeper by apache.

the class ZooKeeper method getConfig.

/**
     * The asynchronous version of getConfig.
     *
     * @see #getConfig(Watcher, Stat)
     */
public void getConfig(Watcher watcher, DataCallback cb, Object ctx) {
    final String configZnode = ZooDefs.CONFIG_NODE;
    // the watch contains the un-chroot path
    WatchRegistration wcb = null;
    if (watcher != null) {
        wcb = new DataWatchRegistration(watcher, configZnode);
    }
    RequestHeader h = new RequestHeader();
    h.setType(ZooDefs.OpCode.getData);
    GetDataRequest request = new GetDataRequest();
    request.setPath(configZnode);
    request.setWatch(watcher != null);
    GetDataResponse response = new GetDataResponse();
    cnxn.queuePacket(h, new ReplyHeader(), request, response, cb, configZnode, configZnode, ctx, wcb);
}

Example 28 with RequestHeader

use of org.apache.zookeeper.proto.RequestHeader in project zookeeper by apache.

the class ZooKeeper method setData.

/**
     * The asynchronous version of setData.
     *
     * @see #setData(String, byte[], int)
     */
public void setData(final String path, byte[] data, int version, StatCallback cb, Object ctx) {
    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();
    cnxn.queuePacket(h, new ReplyHeader(), request, response, cb, clientPath, serverPath, ctx, null);
}

Example 29 with RequestHeader

use of org.apache.zookeeper.proto.RequestHeader in project zookeeper by apache.

the class ZooKeeper method delete.

/**
     * The asynchronous version of delete.
     *
     * @see #delete(String, int)
     */
public void delete(final String path, int version, VoidCallback cb, Object ctx) {
    final String clientPath = path;
    PathUtils.validatePath(clientPath);
    final String serverPath;
    // I think this makes sense even in chroot case.
    if (clientPath.equals("/")) {
        // a bit of a hack, but delete(/) will never succeed and ensures
        // that the same semantics are maintained
        serverPath = clientPath;
    } else {
        serverPath = prependChroot(clientPath);
    }
    RequestHeader h = new RequestHeader();
    h.setType(ZooDefs.OpCode.delete);
    DeleteRequest request = new DeleteRequest();
    request.setPath(serverPath);
    request.setVersion(version);
    cnxn.queuePacket(h, new ReplyHeader(), request, null, cb, clientPath, serverPath, ctx, null);
}

Example 30 with RequestHeader

use of org.apache.zookeeper.proto.RequestHeader in project zookeeper by apache.

the class ZooKeeper method create.

/**
     * The asynchronous version of create.
     *
     * @see #create(String, byte[], List, CreateMode)
     */
public void create(final String path, byte[] data, List<ACL> acl, CreateMode createMode, StringCallback cb, Object ctx) {
    final String clientPath = path;
    PathUtils.validatePath(clientPath, createMode.isSequential());
    EphemeralType.validateTTL(createMode, -1);
    final String serverPath = prependChroot(clientPath);
    RequestHeader h = new RequestHeader();
    h.setType(createMode.isContainer() ? ZooDefs.OpCode.createContainer : ZooDefs.OpCode.create);
    CreateRequest request = new CreateRequest();
    CreateResponse response = new CreateResponse();
    ReplyHeader r = new ReplyHeader();
    request.setData(data);
    request.setFlags(createMode.toFlag());
    request.setPath(serverPath);
    request.setAcl(acl);
    cnxn.queuePacket(h, r, request, response, cb, clientPath, serverPath, ctx, null);
}