Java RequestHeader.serialize方法代码示例

import org.apache.zookeeper.proto.RequestHeader; //导入方法依赖的package包/类
Packet(RequestHeader requestHeader, ReplyHeader replyHeader,
       Record request, Record response,
       WatchRegistration watchRegistration, boolean readOnly) {

    this.requestHeader = requestHeader;
    this.replyHeader = replyHeader;
    this.request = request;
    this.response = response;

    try {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        BinaryOutputArchive boa = BinaryOutputArchive.getArchive(baos);
        boa.writeInt(-1, "len"); // We'll fill this in later
        if (requestHeader != null) {
            requestHeader.serialize(boa, "header");
        }
        if (request instanceof ConnectRequest) {
            request.serialize(boa, "connect");
            // append "am-I-allowed-to-be-readonly" flag
            boa.writeBool(readOnly, "readOnly");
        } else if (request != null) {
            request.serialize(boa, "request");
        }
        baos.close();
        this.bb = ByteBuffer.wrap(baos.toByteArray());
        this.bb.putInt(this.bb.capacity() - 4);
        this.bb.rewind();
    } catch (IOException e) {
        LOG.warn("Ignoring unexpected exception", e);
    }

    this.watchRegistration = watchRegistration;
}
 

import org.apache.zookeeper.proto.RequestHeader; //导入方法依赖的package包/类
/**
 * Test solution for ZOOKEEPER-1208. Verify that operations are not
 * accepted after a close session.
 * 
 * We're using our own marshalling here in order to force an operation
 * after the session is closed (ZooKeeper.class will not allow this). Also
 * by filling the pipe with operations it increases the likelyhood that
 * the server will process the create before FinalRequestProcessor
 * removes the session from the tracker.
 */
@Test
public void testCreateAfterCloseShouldFail() throws Exception {
    for (int i = 0; i < 10; i++) {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        BinaryOutputArchive boa = BinaryOutputArchive.getArchive(baos);

        // open a connection
        boa.writeInt(44, "len");
        ConnectRequest conReq = new ConnectRequest(0, 0, 30000, 0, new byte[16]);
        conReq.serialize(boa, "connect");

        // close connection
        boa.writeInt(8, "len");
        RequestHeader h = new RequestHeader(1, ZooDefs.OpCode.closeSession);
        h.serialize(boa, "header");

        // create ephemeral znode
        boa.writeInt(52, "len"); // We'll fill this in later
        RequestHeader header = new RequestHeader(2, OpCode.create);
        header.serialize(boa, "header");
        CreateRequest createReq = new CreateRequest("/foo" + i, new byte[0],
                Ids.OPEN_ACL_UNSAFE, 1);
        createReq.serialize(boa, "request");
        baos.close();
        
        System.out.println("Length:" + baos.toByteArray().length);
        
        String hp[] = hostPort.split(":");
        Socket sock = new Socket(hp[0], Integer.parseInt(hp[1]));
        InputStream resultStream = null;
        try {
            OutputStream outstream = sock.getOutputStream();
            byte[] data = baos.toByteArray();
            outstream.write(data);
            outstream.flush();
            
            resultStream = sock.getInputStream();
            byte[] b = new byte[10000];
            int len;
            while ((len = resultStream.read(b)) >= 0) {
                // got results
                System.out.println("gotlen:" + len);
            }
        } finally {
            if (resultStream != null) {
                resultStream.close();
            }
            sock.close();
        }
    }
    
    ZooKeeper zk = createClient();
    Assert.assertEquals(1, zk.getChildren("/", false).size());

    zk.close();
}