Examples with Event org.wso2.siddhi.core.event.Event used on opensource projects

Example 1 with Event

use of org.wso2.siddhi.core.event.Event in project siddhi by wso2.

the class IncrementalExecutor method dispatchEvents.

private void dispatchEvents(Map<String, BaseIncrementalValueStore> baseIncrementalValueGroupByStore) {
    int noOfEvents = baseIncrementalValueGroupByStore.size();
    if (noOfEvents > 0) {
        ComplexEventChunk<StreamEvent> eventChunk = new ComplexEventChunk<>(true);
        for (BaseIncrementalValueStore aBaseIncrementalValueStore : baseIncrementalValueGroupByStore.values()) {
            StreamEvent streamEvent = aBaseIncrementalValueStore.createStreamEvent();
            eventChunk.add(streamEvent);
        }
        LOG.debug("Event dispatched by " + this.duration + " incremental executor: " + eventChunk.toString());
        table.addEvents(eventChunk, noOfEvents);
        if (getNextExecutor() != null) {
            next.execute(eventChunk);
        }
    }
    baseIncrementalValueGroupByStore.clear();
}

Example 2 with Event

use of org.wso2.siddhi.core.event.Event in project siddhi by wso2.

the class IncrementalExecutor method dispatchEvent.

private void dispatchEvent(long startTimeOfNewAggregates, BaseIncrementalValueStore aBaseIncrementalValueStore) {
    if (aBaseIncrementalValueStore.isProcessed()) {
        StreamEvent streamEvent = aBaseIncrementalValueStore.createStreamEvent();
        ComplexEventChunk<StreamEvent> eventChunk = new ComplexEventChunk<>(true);
        eventChunk.add(streamEvent);
        LOG.debug("Event dispatched by " + this.duration + " incremental executor: " + eventChunk.toString());
        table.addEvents(eventChunk, 1);
        if (getNextExecutor() != null) {
            next.execute(eventChunk);
        }
    }
    cleanBaseIncrementalValueStore(startTimeOfNewAggregates, aBaseIncrementalValueStore);
}

Example 3 with Event

use of org.wso2.siddhi.core.event.Event in project siddhi by wso2.

the class SiddhiDebuggerClient method start.

/**
 * Start the {@link SiddhiDebuggerClient} and configure the breakpoints.
 *
 * @param siddhiApp the Siddhi query
 * @param input         the user input as a whole text
 */
public void start(final String siddhiApp, String input) {
    SiddhiManager siddhiManager = new SiddhiManager();
    info("Deploying the siddhi app");
    final SiddhiAppRuntime siddhiAppRuntime = siddhiManager.createSiddhiAppRuntime(siddhiApp);
    // Add callbacks for all the streams
    final Set<String> streamNames = SiddhiCompiler.parse(siddhiApp).getStreamDefinitionMap().keySet();
    for (String streamName : streamNames) {
        final String stream = streamName;
        siddhiAppRuntime.addCallback(stream, new StreamCallback() {

            @Override
            public void receive(Event[] events) {
                info("@Receive: Stream: " + stream + ", Event: " + Arrays.deepToString(events));
            }
        });
    }
    SiddhiDebugger siddhiDebugger = siddhiAppRuntime.debug();
    final InputFeeder inputFeeder = new InputFeeder(siddhiAppRuntime, input);
    System.out.println("Configure the breakpoints.\nYou can use the following commands:\n - " + ADD_BREAKPOINT + "<query name>:<IN/OUT>\n - " + REMOVE_BREAKPOINT + "<query name>:<IN/OUT>\n - " + START + "\n - " + STOP);
    printNextLine();
    final Scanner scanner = new Scanner(System.in, "UTF-8");
    while (scanner.hasNextLine()) {
        String userInput = scanner.nextLine().trim();
        String command = userInput.toLowerCase();
        if (command.startsWith(ADD_BREAKPOINT)) {
            if (!command.contains(QUERY_DELIMITER)) {
                error("Invalid add query. The query must be " + ADD_BREAKPOINT + "<query " + "name>:<IN/OUT>. Please try again");
                printNextLine();
                continue;
            }
            String[] components = userInput.substring(ADD_BREAKPOINT.length(), userInput.length()).split(QUERY_DELIMITER);
            String queryName = components[0];
            String terminal = components[1].toLowerCase();
            if (IN.equals(terminal)) {
                siddhiDebugger.acquireBreakPoint(queryName, SiddhiDebugger.QueryTerminal.IN);
                info("Added a breakpoint at the IN terminal of " + queryName);
                printNextLine();
            } else if (OUT.equals(terminal)) {
                siddhiDebugger.acquireBreakPoint(queryName, SiddhiDebugger.QueryTerminal.OUT);
                info("Added a breakpoint at the OUT terminal of " + queryName);
                printNextLine();
            } else {
                error("The terminal must be either IN or OUT but found: " + terminal.toUpperCase() + ". Please try again");
                printNextLine();
            }
        } else if (command.startsWith(REMOVE_BREAKPOINT)) {
            if (!command.contains(QUERY_DELIMITER)) {
                error("Invalid add query. The query must be " + REMOVE_BREAKPOINT + "<query " + "name>:<IN/OUT>. Please try again");
                printNextLine();
                continue;
            }
            String[] components = command.substring(ADD_BREAKPOINT.length(), command.length()).split(QUERY_DELIMITER);
            String queryName = components[0];
            String terminal = components[1];
            if (IN.equals(terminal)) {
                siddhiDebugger.releaseBreakPoint(queryName, SiddhiDebugger.QueryTerminal.IN);
                info("Removed the breakpoint at the IN terminal of " + queryName);
                printNextLine();
            } else if (OUT.equals(terminal)) {
                siddhiDebugger.releaseBreakPoint(queryName, SiddhiDebugger.QueryTerminal.OUT);
                info("Removed the breakpoint at the OUT terminal of " + queryName);
                printNextLine();
            } else {
                error("The terminal must be either IN or OUT but found: " + terminal.toUpperCase());
                printNextLine();
            }
        } else if (STOP.equals(command)) {
            inputFeeder.stop();
            siddhiAppRuntime.shutdown();
            break;
        } else if (START.equals(command)) {
            inputFeeder.start();
            info("Siddhi Debugger starts sending input to Siddhi");
            System.out.println("You can use the following commands:\n - " + NEXT + "\n - " + PLAY + "\n - " + STATE + ":<query name>\n - " + STOP);
            break;
        } else {
            error("Invalid command: " + command);
            printNextLine();
        }
    }
    siddhiDebugger.setDebuggerCallback(new SiddhiDebuggerCallback() {

        @Override
        public void debugEvent(ComplexEvent event, String queryName, SiddhiDebugger.QueryTerminal queryTerminal, SiddhiDebugger debugger) {
            info("@Debug: Query: " + queryName + ", Terminal: " + queryTerminal + ", Event: " + event);
            printNextLine();
            while (scanner.hasNextLine()) {
                String command = scanner.nextLine().trim().toLowerCase();
                if (STOP.equals(command)) {
                    debugger.releaseAllBreakPoints();
                    debugger.play();
                    inputFeeder.stop();
                    siddhiAppRuntime.shutdown();
                    break;
                } else if (NEXT.equals(command)) {
                    debugger.next();
                    break;
                } else if (PLAY.equals(command)) {
                    debugger.play();
                    break;
                } else if (command.startsWith(STATE)) {
                    if (!command.contains(QUERY_DELIMITER)) {
                        error("Invalid get state request. The query must be " + STATE + ":<query " + "name>. Please try again");
                        printNextLine();
                        continue;
                    }
                    String[] components = command.split(QUERY_DELIMITER);
                    String requestQueryName = components[1];
                    Map<String, Object> state = debugger.getQueryState(requestQueryName.trim());
                    System.out.println("Query '" + requestQueryName + "' state : ");
                    for (Map.Entry<String, Object> entry : state.entrySet()) {
                        System.out.println("    '" + entry.getKey() + "' : " + entry.getValue());
                    }
                    printNextLine();
                    continue;
                } else {
                    error("Invalid command: " + command);
                    printNextLine();
                }
            }
        }
    });
    inputFeeder.join();
    if (inputFeeder.isRunning()) {
        info("Input feeder has sopped sending all inputs. If you want to stop the execution, use " + "the STOP command");
        printNextLine();
        while (scanner.hasNextLine()) {
            String command = scanner.nextLine().trim().toLowerCase();
            if (STOP.equals(command)) {
                inputFeeder.stop();
                siddhiAppRuntime.shutdown();
                break;
            } else {
                error("Invalid command: " + command);
                printNextLine();
            }
        }
    }
    scanner.close();
    info("Siddhi Debugger is stopped successfully");
}

Example 4 with Event

use of org.wso2.siddhi.core.event.Event in project siddhi by wso2.

the class ConversionStreamEventChunk method convertAndAssign.

public void convertAndAssign(Event event) {
    StreamEvent borrowedEvent = streamEventPool.borrowEvent();
    streamEventConverter.convertEvent(event, borrowedEvent);
    first = borrowedEvent;
    last = first;
}

Example 5 with Event

use of org.wso2.siddhi.core.event.Event in project siddhi by wso2.

the class ExternalTimeBatchWindowProcessor method process.

/**
 * Here an assumption is taken:
 * Parameter: timestamp: The time which the window determines as current time and will act upon,
 * the value of this parameter should be monotonically increasing.
 * from https://docs.wso2.com/display/CEP400/Inbuilt+Windows#InbuiltWindows-externalTime
 */
@Override
protected void process(ComplexEventChunk<StreamEvent> streamEventChunk, Processor nextProcessor, StreamEventCloner streamEventCloner) {
    // event incoming trigger process. No events means no action
    if (streamEventChunk.getFirst() == null) {
        return;
    }
    List<ComplexEventChunk<StreamEvent>> complexEventChunks = new ArrayList<ComplexEventChunk<StreamEvent>>();
    synchronized (this) {
        initTiming(streamEventChunk.getFirst());
        StreamEvent nextStreamEvent = streamEventChunk.getFirst();
        while (nextStreamEvent != null) {
            StreamEvent currStreamEvent = nextStreamEvent;
            nextStreamEvent = nextStreamEvent.getNext();
            if (currStreamEvent.getType() == ComplexEvent.Type.TIMER) {
                if (lastScheduledTime <= currStreamEvent.getTimestamp()) {
                    // implies that there have not been any more events after this schedule has been done.
                    if (!flushed) {
                        flushToOutputChunk(streamEventCloner, complexEventChunks, lastCurrentEventTime, true);
                        flushed = true;
                    } else {
                        if (currentEventChunk.getFirst() != null) {
                            appendToOutputChunk(streamEventCloner, complexEventChunks, lastCurrentEventTime, true);
                        }
                    }
                    // rescheduling to emit the current batch after expiring it if no further events arrive.
                    lastScheduledTime = siddhiAppContext.getTimestampGenerator().currentTime() + schedulerTimeout;
                    scheduler.notifyAt(lastScheduledTime);
                }
                continue;
            } else if (currStreamEvent.getType() != ComplexEvent.Type.CURRENT) {
                continue;
            }
            long currentEventTime = (Long) timestampExpressionExecutor.execute(currStreamEvent);
            if (lastCurrentEventTime < currentEventTime) {
                lastCurrentEventTime = currentEventTime;
            }
            if (currentEventTime < endTime) {
                cloneAppend(streamEventCloner, currStreamEvent);
            } else {
                if (flushed) {
                    appendToOutputChunk(streamEventCloner, complexEventChunks, lastCurrentEventTime, false);
                    flushed = false;
                } else {
                    flushToOutputChunk(streamEventCloner, complexEventChunks, lastCurrentEventTime, false);
                }
                // update timestamp, call next processor
                endTime = findEndTime(lastCurrentEventTime, startTime, timeToKeep);
                cloneAppend(streamEventCloner, currStreamEvent);
                // triggering the last batch expiration.
                if (schedulerTimeout > 0) {
                    lastScheduledTime = siddhiAppContext.getTimestampGenerator().currentTime() + schedulerTimeout;
                    scheduler.notifyAt(lastScheduledTime);
                }
            }
        }
    }
    for (ComplexEventChunk<StreamEvent> complexEventChunk : complexEventChunks) {
        nextProcessor.process(complexEventChunk);
    }
}