Examples with Request com.cloud.agent.transport.Request used on opensource projects

Example 6 with Request

use of com.cloud.agent.transport.Request in project cloudstack by apache.

the class AgentManagerImpl method send.

@Override
public Answer[] send(final Long hostId, final Commands commands, int timeout) throws AgentUnavailableException, OperationTimedoutException {
    assert hostId != null : "Who's not checking the agent id before sending?  ... (finger wagging)";
    if (hostId == null) {
        throw new AgentUnavailableException(-1);
    }
    if (timeout <= 0) {
        timeout = Wait.value();
    }
    if (CheckTxnBeforeSending.value()) {
        if (!noDbTxn()) {
            throw new CloudRuntimeException("We do not allow transactions to be wrapped around commands sent to be executed on remote agents.  " + "We cannot predict how long it takes a command to complete.  " + "The transaction may be rolled back because the connection took too long.");
        }
    } else {
        assert noDbTxn() : "I know, I know.  Why are we so strict as to not allow txn across an agent call?  ...  Why are we so cruel ... Why are we such a dictator .... Too bad... Sorry...but NO AGENT COMMANDS WRAPPED WITHIN DB TRANSACTIONS!";
    }
    final Command[] cmds = checkForCommandsAndTag(commands);
    final AgentAttache agent = getAttache(hostId);
    if (agent == null || agent.isClosed()) {
        throw new AgentUnavailableException("agent not logged into this management server", hostId);
    }
    final Request req = new Request(hostId, agent.getName(), _nodeId, cmds, commands.stopOnError(), true);
    req.setSequence(agent.getNextSequence());
    final Answer[] answers = agent.send(req, timeout);
    notifyAnswersToMonitors(hostId, req.getSequence(), answers);
    commands.setAnswers(answers);
    return answers;
}

Example 7 with Request

use of com.cloud.agent.transport.Request in project CloudStack-archive by CloudStack-extras.

the class Agent method sendStartup.

public void sendStartup(Link link) {
    final StartupCommand[] startup = _resource.initialize();
    final Command[] commands = new Command[startup.length];
    for (int i = 0; i < startup.length; i++) {
        setupStartupCommand(startup[i]);
        commands[i] = startup[i];
    }
    final Request request = new Request(_id != null ? _id : -1, -1, commands, false, false);
    request.setSequence(getNextSequence());
    if (s_logger.isDebugEnabled()) {
        s_logger.debug("Sending Startup: " + request.toString());
    }
    synchronized (this) {
        _startup = new StartupTask(link);
        _timer.schedule(_startup, _startupWait);
    }
    try {
        link.send(request.toBytes());
    } catch (final ClosedChannelException e) {
        s_logger.warn("Unable to send reques: " + request.toString());
    }
}

Example 8 with Request

use of com.cloud.agent.transport.Request in project CloudStack-archive by CloudStack-extras.

the class Agent method processOtherTask.

public void processOtherTask(Task task) {
    final Object obj = task.get();
    if (obj instanceof Response) {
        if ((System.currentTimeMillis() - _lastPingResponseTime) > _pingInterval * _shell.getPingRetries()) {
            s_logger.error("Ping Interval has gone past " + _pingInterval * _shell.getPingRetries() + ".  Attempting to reconnect.");
            final Link link = task.getLink();
            reconnect(link);
            return;
        }
        final PingCommand ping = _resource.getCurrentStatus(getId());
        final Request request = new Request(_id, -1, ping, false);
        request.setSequence(getNextSequence());
        if (s_logger.isDebugEnabled()) {
            s_logger.debug("Sending ping: " + request.toString());
        }
        try {
            task.getLink().send(request.toBytes());
            //if i can send pingcommand out, means the link is ok
            setLastPingResponseTime();
        } catch (final ClosedChannelException e) {
            s_logger.warn("Unable to send request: " + request.toString());
        }
    } else if (obj instanceof Request) {
        final Request req = (Request) obj;
        final Command command = req.getCommand();
        Answer answer = null;
        _inProgress.incrementAndGet();
        try {
            answer = _resource.executeRequest(command);
        } finally {
            _inProgress.decrementAndGet();
        }
        if (answer != null) {
            final Response response = new Response(req, answer);
            if (s_logger.isDebugEnabled()) {
                s_logger.debug("Watch Sent: " + response.toString());
            }
            try {
                task.getLink().send(response.toBytes());
            } catch (final ClosedChannelException e) {
                s_logger.warn("Unable to send response: " + response.toString());
            }
        }
    } else {
        s_logger.warn("Ignoring an unknown task");
    }
}

Example 9 with Request

use of com.cloud.agent.transport.Request in project CloudStack-archive by CloudStack-extras.

the class Agent method stop.

public void stop(final String reason, final String detail) {
    s_logger.info("Stopping the agent: Reason = " + reason + (detail != null ? ": Detail = " + detail : ""));
    if (_connection != null) {
        final ShutdownCommand cmd = new ShutdownCommand(reason, detail);
        try {
            if (_link != null) {
                Request req = new Request((_id != null ? _id : -1), -1, cmd, false);
                _link.send(req.toBytes());
            }
        } catch (final ClosedChannelException e) {
            s_logger.warn("Unable to send: " + cmd.toString());
        } catch (Exception e) {
            s_logger.warn("Unable to send: " + cmd.toString() + " due to exception: ", e);
        }
        s_logger.debug("Sending shutdown to management server");
        try {
            Thread.sleep(1000);
        } catch (final InterruptedException e) {
            s_logger.debug("Who the heck interrupted me here?");
        }
        _connection.stop();
        _connection = null;
    }
    if (_resource != null) {
        _resource.stop();
        _resource = null;
    }
    _ugentTaskPool.shutdownNow();
}

Example 10 with Request

use of com.cloud.agent.transport.Request in project cloudstack by apache.

the class Agent method postRequest.

@Override
public void postRequest(final AgentControlCommand cmd) throws AgentControlChannelException {
    final Request request = new Request(getId(), -1, new Command[] { cmd }, true, false);
    request.setSequence(getNextSequence());
    postRequest(request);
}