Examples with ComplexEvent io.siddhi.core.event.ComplexEvent used on opensource projects

Example 1 with ComplexEvent

use of io.siddhi.core.event.ComplexEvent 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 2 with ComplexEvent

use of io.siddhi.core.event.ComplexEvent in project siddhi by wso2.

the class FirstGroupByPerEventOutputRateLimiter method process.

@Override
public void process(ComplexEventChunk complexEventChunk) {
    complexEventChunk.reset();
    ComplexEventChunk<ComplexEvent> outputEventChunk = new ComplexEventChunk<>();
    RateLimiterState state = stateHolder.getState();
    try {
        synchronized (state) {
            while (complexEventChunk.hasNext()) {
                ComplexEvent event = complexEventChunk.next();
                complexEventChunk.remove();
                GroupedComplexEvent groupedComplexEvent = ((GroupedComplexEvent) event);
                Integer count = state.groupByOutputTime.get(groupedComplexEvent.getGroupKey());
                if (count == null) {
                    state.groupByOutputTime.put(groupedComplexEvent.getGroupKey(), 1);
                    outputEventChunk.add(groupedComplexEvent);
                } else if (count.equals(value - 1)) {
                    state.groupByOutputTime.remove(groupedComplexEvent.getGroupKey());
                } else {
                    state.groupByOutputTime.put(groupedComplexEvent.getGroupKey(), count + 1);
                }
            }
        }
    } finally {
        stateHolder.returnState(state);
    }
    outputEventChunk.reset();
    if (outputEventChunk.hasNext()) {
        sendToCallBacks(outputEventChunk);
    }
}

Example 3 with ComplexEvent

use of io.siddhi.core.event.ComplexEvent in project siddhi by wso2.

the class AllAggregationGroupByWindowedPerSnapshotOutputRateLimiter method process.

@Override
public void process(ComplexEventChunk complexEventChunk) {
    List<ComplexEventChunk> outputEventChunks = new LinkedList<>();
    complexEventChunk.reset();
    RateLimiterState state = stateHolder.getState();
    try {
        synchronized (state) {
            while (complexEventChunk.hasNext()) {
                ComplexEvent event = complexEventChunk.next();
                if (event.getType() == ComplexEvent.Type.TIMER) {
                    tryFlushEvents(outputEventChunks, event, state);
                } else {
                    complexEventChunk.remove();
                    tryFlushEvents(outputEventChunks, event, state);
                    GroupedComplexEvent groupedComplexEvent = ((GroupedComplexEvent) event);
                    LastEventHolder lastEventHolder = state.groupByKeyEvents.get(groupedComplexEvent.getGroupKey());
                    if (lastEventHolder == null) {
                        lastEventHolder = new LastEventHolder();
                        state.groupByKeyEvents.put(groupedComplexEvent.getGroupKey(), lastEventHolder);
                    }
                    if (groupedComplexEvent.getType() == ComplexEvent.Type.CURRENT) {
                        lastEventHolder.addLastInEvent(groupedComplexEvent.getComplexEvent());
                    } else if (groupedComplexEvent.getType() == ComplexEvent.Type.EXPIRED) {
                        lastEventHolder.removeLastInEvent(groupedComplexEvent.getComplexEvent());
                    } else if (groupedComplexEvent.getType() == ComplexEvent.Type.RESET) {
                        state.groupByKeyEvents.clear();
                    }
                }
            }
        }
    } finally {
        stateHolder.returnState(state);
    }
    sendToCallBacks(outputEventChunks);
}

Example 4 with ComplexEvent

use of io.siddhi.core.event.ComplexEvent in project siddhi by wso2.

the class GroupByPerSnapshotOutputRateLimiter method tryFlushEvents.

private void tryFlushEvents(List<ComplexEventChunk> outputEventChunks, ComplexEvent event, RateLimiterState state) {
    if (event.getTimestamp() >= state.scheduledTime) {
        ComplexEventChunk<ComplexEvent> outputEventChunk = new ComplexEventChunk<>();
        for (ComplexEvent complexEvent : state.groupByKeyEvents.values()) {
            outputEventChunk.add(cloneComplexEvent(complexEvent));
        }
        outputEventChunks.add(outputEventChunk);
        state.scheduledTime += value;
        scheduler.notifyAt(state.scheduledTime);
    }
}

Example 5 with ComplexEvent

use of io.siddhi.core.event.ComplexEvent in project siddhi by wso2.

the class GroupByPerSnapshotOutputRateLimiter method process.

/**
 * Sends the collected unique outputs per group by key upon arrival of timer event from scheduler.
 *
 * @param complexEventChunk Incoming {@link ComplexEventChunk}
 */
@Override
public void process(ComplexEventChunk complexEventChunk) {
    List<ComplexEventChunk> outputEventChunks = new LinkedList<>();
    complexEventChunk.reset();
    RateLimiterState state = stateHolder.getState();
    try {
        synchronized (state) {
            complexEventChunk.reset();
            while (complexEventChunk.hasNext()) {
                ComplexEvent event = complexEventChunk.next();
                if (event.getType() == ComplexEvent.Type.TIMER) {
                    tryFlushEvents(outputEventChunks, event, state);
                } else if (event.getType() == ComplexEvent.Type.CURRENT) {
                    complexEventChunk.remove();
                    tryFlushEvents(outputEventChunks, event, state);
                    GroupedComplexEvent groupedComplexEvent = ((GroupedComplexEvent) event);
                    state.groupByKeyEvents.put(groupedComplexEvent.getGroupKey(), groupedComplexEvent.getComplexEvent());
                }
            }
        }
    } finally {
        stateHolder.returnState(state);
    }
    sendToCallBacks(outputEventChunks);
}