Package com.sleepycat.je.rep.impl.TextProtocol

Examples of com.sleepycat.je.rep.impl.TextProtocol.RequestMessage

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                        LoggerUtils.logMsg(logger, envImpl,
                                           formatter, Level.FINE,
                                           "Acceptor: EOF on request");
                        continue;
                    }
                    RequestMessage requestMessage = null;
                    try {
                        requestMessage = protocol.parseRequest(requestLine);
                    } catch (InvalidMessageException e) {
                        LoggerUtils.logMsg(logger, envImpl,
                                           formatter, Level.WARNING,
                                           "Message format error: " +
                                           e.getMessage());
                        out.println
                            (protocol.new ProtocolError(e).wireFormat());
                        continue;
                    }
                    ResponseMessage responseMessage = null;
                    if (requestMessage.getOp() == protocol.PROPOSE) {
                        responseMessage = process((Propose) requestMessage);
                    } else if (requestMessage.getOp() == protocol.ACCEPT) {
                        responseMessage = process((Accept) requestMessage);
                    } else if (requestMessage.getOp() == protocol.SHUTDOWN) {
                        break;
                    } else {
                        LoggerUtils.logMsg(logger, envImpl,
                                           formatter, Level.SEVERE,
                                           "Unrecognized request: " +
                                           requestLine);
                        continue;
                    }

                    /*
                     * The request message may be of an earlier version. If so,
                     * this node transparently read the older version. JE only
                     * throws out InvalidMesageException when the version of
                     * the request message is newer than the current protocol.
                     * To avoid sending a repsonse that the requester cannot
                     * understand, we send a response in the same version as
                     * that of the original request message.
                     */
                    responseMessage.setSendVersion
                        (requestMessage.getSendVersion());
                    out.println(responseMessage.wireFormat());
                } catch (IOException e) {
                    LoggerUtils.logMsg
                        (logger, envImpl, formatter, Level.WARNING,
                         "IO error on socket: " + e.getMessage());
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        /* Read request and send out response. */
        public void run() {
            try {
                channel.configureBlocking(true);
                RequestMessage request = protocol.getRequestMessage(channel);
                if (request == null) {
                    return;
                }
                ResponseMessage response = getResponse(request);
                if (expectResponse && response != null) {
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                        (new InputStreamReader(socket.getInputStream()));
                    final String requestLine = in.readLine();
                    if (requestLine == null) {
                        continue;
                    }
                    RequestMessage requestMessage;
                    try {
                        requestMessage = protocol.parseRequest(requestLine);
                    } catch (InvalidMessageException e) {
                        LoggerUtils.logMsg
                            (logger, envImpl, formatter, Level.WARNING,
                             "Message format exception: " + e.getMessage());
                        out = new PrintWriter(socket.getOutputStream(), true);
                        out.println(protocol.new
                                    ProtocolError(e).wireFormat());
                        continue;
                    }

                    LoggerUtils.logMsg(logger, envImpl, formatter,
                                       Level.FINEST,
                                       "learner request: " +
                                       requestMessage.getOp() +
                                       " sender: " +
                                       requestMessage.getSenderId());
                    if (requestMessage.getOp() == protocol.RESULT) {
                        Result result = (Result) requestMessage;
                        processResult(result.getProposal(),result.getValue());
                    } else if (requestMessage.getOp() ==
                               protocol.MASTER_QUERY) {
                        synchronized (this) {
                            if ((currentProposal != null) &&
                                    (currentValue != null)) {
                                out = new PrintWriter(socket.getOutputStream(),
                                                      true);
                                MasterQueryResponse responseMessage =
                                    protocol.new MasterQueryResponse
                                        (currentProposal, currentValue);

                                /*
                                 * The request message may be of an earlier
                                 * version. If so, this node transparently read
                                 * the older version. JE only throws out
                                 * InvalidMessageException when the version of
                                 * the request message is newer than the
                                 * current protocol. To avoid sending a
                                 * response that the requester cannot
                                 * understand, we send a response in the same
                                 * version as that of the original request
                                 * message.
                                 */
                                responseMessage.setSendVersion
                                    (requestMessage.getSendVersion());
                                out.println(responseMessage.wireFormat());
                            }
                        }
                    } else if (requestMessage.getOp() == protocol.SHUTDOWN) {
                        LoggerUtils.logMsg
                            (logger, envImpl, formatter, Level.FINE,
                             "Learner thread exiting");
                        break;
                    } else {
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        final ExecutorService pool =
            Executors.newFixedThreadPool
               (threadPoolSize, new StoppableThreadFactory("JE Learner",
                                                           logger));
        try {
            RequestMessage masterQuery = protocol.new MasterQuery();
            List<Future<MessageExchange>> futures =
                Utils.broadcastMessage(learnerSockets,
                                       Learner.SERVICE_NAME,
                                       masterQuery,
                                       pool);
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               MemberNotFoundException,
               MasterStateException,
               EnvironmentFailureException {

        final String masterErrorMessage = "Cannot remove an active master";
        final RequestMessage request =
            groupProtocol.new RemoveMember(nodeName);

        checkMember(nodeName, masterErrorMessage);
        doMessageExchange(request, OK.class);
    }
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               ReplicaStateException,
               UnknownMasterException {

        final String masterErrorMessage =
            "Can't update address for the current master.";
        RequestMessage request =
            groupProtocol.new UpdateAddress(nodeName, newHostName, newPort);

        checkMember(nodeName, masterErrorMessage);
        doMessageExchange(request, OK.class);
    }
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               MemberNotFoundException,
               UnknownMasterException {

        final String masterErrorMessage =
            "The node is currently the master, needn't to transfer";
        final RequestMessage transferMaster =
            groupProtocol.new TransferMaster(nodeName);

        checkMember(nodeName, masterErrorMessage);
        doMessageExchange(transferMaster, null);
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                        (new InputStreamReader(socket.getInputStream()));
                    final String requestLine = in.readLine();
                    if (requestLine == null) {
                        continue;
                    }
                    RequestMessage requestMessage;
                    try {
                        requestMessage = protocol.parseRequest(requestLine);
                    } catch (InvalidMessageException e) {
                        LoggerUtils.logMsg
                            (logger, envImpl, formatter, Level.WARNING,
                             "Message format exception: " + e.getMessage());
                        out = new PrintWriter(socket.getOutputStream(), true);
                        out.println(protocol.new
                                    ProtocolError(e).wireFormat());
                        continue;
                    }
                    LoggerUtils.logMsg(logger, envImpl, formatter,
                                       Level.FINEST,
                                       "learner request: " +
                                       requestMessage.getOp() +
                                       " sender: " +
                                       requestMessage.getSenderId());
                    if (requestMessage.getOp() == protocol.RESULT) {
                        Result result = (Result) requestMessage;
                        processResult(result.getProposal(),result.getValue());
                    } else if (requestMessage.getOp() ==
                               protocol.MASTER_QUERY) {
                        synchronized (this) {
                            if ((currentProposal != null) &&
                                    (currentValue != null)) {
                                out = new PrintWriter(socket.getOutputStream(),
                                                      true);
                                MasterQueryResponse responseMessage =
                                    protocol.new MasterQueryResponse
                                        (currentProposal, currentValue);
                                out.println(responseMessage.wireFormat());
                            }
                        }
                    } else if (requestMessage.getOp() == protocol.SHUTDOWN) {
                        LoggerUtils.logMsg
                            (logger, envImpl, formatter, Level.FINE,
                             "Learner thread exiting");
                        break;
                    } else {
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    public void queryForMaster(Set<InetSocketAddress> learnerSockets) {
        int threadPoolSize = Math.max(learnerSockets.size(), 10);
        final ExecutorService pool =
            Executors.newFixedThreadPool(threadPoolSize);
        try {
            RequestMessage masterQuery = protocol.new MasterQuery();
            List<Future<MessageExchange>> futures =
                Utils.broadcastMessage(learnerSockets,
                                       Learner.SERVICE_NAME,
                                       masterQuery,
                                       pool);
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        /* Read request and send out response. */
        public void run() {
            try {
                channel.configureBlocking(true);
                RequestMessage request = protocol.getRequestMessage(channel);
                if (request == null) {
                    return;
                }
                ResponseMessage response = getResponse(request);
                if (expectResponse) {
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Related Classes of com.sleepycat.je.rep.impl.TextProtocol.RequestMessage

  • com.sleepycat.je.rep.elections.Acceptor
  • com.sleepycat.je.rep.elections.Learner
  • com.sleepycat.je.rep.util.ReplicationGroupAdmin
  • com.sleepycat.je.rep.utilint.ServiceDispatcher$ExecutingRunnable
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