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

Example 21 with RequestHeader

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

the class ClientTest method testNonExistingOpCode.

/**
     * We create a perfectly valid 'exists' request, except that the opcode is wrong.
     * @return
     * @throws Exception
     */
@Test
public void testNonExistingOpCode() throws Exception {
    TestableZooKeeper zk = createClient();
    final String path = "/m1";
    RequestHeader h = new RequestHeader();
    // This code does not exists
    h.setType(888);
    ExistsRequest request = new ExistsRequest();
    request.setPath(path);
    request.setWatch(false);
    ExistsResponse response = new ExistsResponse();
    ReplyHeader r = zk.submitRequest(h, request, response, null);
    Assert.assertEquals(r.getErr(), Code.UNIMPLEMENTED.intValue());
    zk.testableWaitForShutdown(CONNECTION_TIMEOUT);
}

Example 22 with RequestHeader

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

the class ZooKeeper method sync.

/**
     * Asynchronous sync. Flushes channel between process and leader.
     * @param path
     * @param cb a handler for the callback
     * @param ctx context to be provided to the callback
     * @throws IllegalArgumentException if an invalid path is specified
     */
public void sync(final String path, VoidCallback cb, Object ctx) {
    final String clientPath = path;
    PathUtils.validatePath(clientPath);
    final String serverPath = prependChroot(clientPath);
    RequestHeader h = new RequestHeader();
    h.setType(ZooDefs.OpCode.sync);
    SyncRequest request = new SyncRequest();
    SyncResponse response = new SyncResponse();
    request.setPath(serverPath);
    cnxn.queuePacket(h, new ReplyHeader(), request, response, cb, clientPath, serverPath, ctx, null);
}

Example 23 with RequestHeader

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

the class ZooKeeper method getChildren.

/**
     * The asynchronous version of getChildren.
     *
     * @see #getChildren(String, Watcher)
     */
public void getChildren(final String path, Watcher watcher, ChildrenCallback cb, Object ctx) {
    final String clientPath = path;
    PathUtils.validatePath(clientPath);
    // the watch contains the un-chroot path
    WatchRegistration wcb = null;
    if (watcher != null) {
        wcb = new ChildWatchRegistration(watcher, clientPath);
    }
    final String serverPath = prependChroot(clientPath);
    RequestHeader h = new RequestHeader();
    h.setType(ZooDefs.OpCode.getChildren);
    GetChildrenRequest request = new GetChildrenRequest();
    request.setPath(serverPath);
    request.setWatch(watcher != null);
    GetChildrenResponse response = new GetChildrenResponse();
    cnxn.queuePacket(h, new ReplyHeader(), request, response, cb, clientPath, serverPath, ctx, wcb);
}

Example 24 with RequestHeader

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

the class ZooKeeperAdmin method reconfigure.

/**
     * Reconfigure - add/remove servers. Return the new configuration.
     * @param joiningServers
     *                a comma separated list of servers being added (incremental reconfiguration)
     * @param leavingServers
     *                a comma separated list of servers being removed (incremental reconfiguration)
     * @param newMembers
     *                a comma separated list of new membership (non-incremental reconfiguration)
     * @param fromConfig
     *                version of the current configuration
     *                (optional - causes reconfiguration to throw an exception if configuration is no longer current)
     * @param stat the stat of /zookeeper/config znode will be copied to this
     *             parameter if not null.
     * @return new configuration
     * @throws InterruptedException If the server transaction is interrupted.
     * @throws KeeperException If the server signals an error with a non-zero error code.
     */
public byte[] reconfigure(String joiningServers, String leavingServers, String newMembers, long fromConfig, Stat stat) throws KeeperException, InterruptedException {
    RequestHeader h = new RequestHeader();
    h.setType(ZooDefs.OpCode.reconfig);
    ReconfigRequest request = new ReconfigRequest(joiningServers, leavingServers, newMembers, fromConfig);
    GetDataResponse response = new GetDataResponse();
    ReplyHeader r = cnxn.submitRequest(h, request, response, null);
    if (r.getErr() != 0) {
        throw KeeperException.create(KeeperException.Code.get(r.getErr()), "");
    }
    if (stat != null) {
        DataTree.copyStat(response.getStat(), stat);
    }
    return response.getData();
}

Example 25 with RequestHeader

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

the class ZooKeeper method setACL.

/**
     * The asynchronous version of setACL.
     *
     * @see #setACL(String, List, int)
     */
public void setACL(final String path, List<ACL> acl, 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.setACL);
    SetACLRequest request = new SetACLRequest();
    request.setPath(serverPath);
    request.setAcl(acl);
    request.setVersion(version);
    SetACLResponse response = new SetACLResponse();
    cnxn.queuePacket(h, new ReplyHeader(), request, response, cb, clientPath, serverPath, ctx, null);
}