Examples with PluginContext io.cdap.cdap.api.plugin.PluginContext used on opensource projects

Example 6 with PluginContext

use of io.cdap.cdap.api.plugin.PluginContext in project cdap by cdapio.

the class StreamingMultiSinkFunction method createStages.

private Map<String, SubmitterLifecycle<?>> createStages(MacroEvaluator evaluator) throws InstantiationException {
    PluginContext pluginContext = sec.getPluginContext();
    Map<String, SubmitterLifecycle<?>> stages = new HashMap<>();
    for (String stageName : group) {
        SubmitterLifecycle<?> plugin = pluginContext.newPluginInstance(stageName, evaluator);
        stages.put(stageName, plugin);
    }
    return stages;
}

Example 7 with PluginContext

use of io.cdap.cdap.api.plugin.PluginContext in project cdap by cdapio.

the class StreamingMultiSinkFunction method call.

@Override
public void call(JavaRDD<RecordInfo<Object>> data, Time batchTime) throws Exception {
    long logicalStartTime = batchTime.milliseconds();
    MacroEvaluator evaluator = new DefaultMacroEvaluator(new BasicArguments(sec), logicalStartTime, sec.getSecureStore(), sec.getServiceDiscoverer(), sec.getNamespace());
    PluginContext pluginContext = new SparkPipelinePluginContext(sec.getPluginContext(), sec.getMetrics(), phaseSpec.isStageLoggingEnabled(), phaseSpec.isProcessTimingEnabled());
    SparkBatchSinkFactory sinkFactory = new SparkBatchSinkFactory();
    PipelineRuntime pipelineRuntime = new SparkPipelineRuntime(sec, logicalStartTime);
    Map<String, SubmitterLifecycle<?>> stages = createStages(evaluator);
    // call prepareRun() on all the stages in the group
    // need to call it in an order that guarantees that inputs are called before outputs
    // this is because plugins can call getArguments().set() in the prepareRun() method,
    // which downstream stages should be able to read
    List<String> traversalOrder = new ArrayList(group.size());
    for (String stageName : phaseSpec.getPhase().getDag().getTopologicalOrder()) {
        if (group.contains(stageName)) {
            traversalOrder.add(stageName);
        }
    }
    for (String stageName : traversalOrder) {
        SubmitterLifecycle<?> plugin = stages.get(stageName);
        StageSpec stageSpec = phaseSpec.getPhase().getStage(stageName);
        try {
            prepareRun(pipelineRuntime, sinkFactory, stageSpec, plugin);
        } catch (Exception e) {
            LOG.error("Error preparing sink {} for the batch for time {}.", stageName, logicalStartTime, e);
            return;
        }
    }
    // run the actual transforms and sinks in this group
    boolean ranSuccessfully = true;
    try {
        MultiSinkFunction multiSinkFunction = new MultiSinkFunction(sec, phaseSpec, group, collectors);
        Set<String> outputNames = sinkFactory.writeCombinedRDD(data.flatMapToPair(multiSinkFunction), sec, sinkNames);
        sec.execute(new TxRunnable() {

            @Override
            public void run(DatasetContext context) throws Exception {
                for (String outputName : outputNames) {
                    ExternalDatasets.registerLineage(sec.getAdmin(), outputName, AccessType.WRITE, null, () -> context.getDataset(outputName));
                }
            }
        });
    } catch (Exception e) {
        LOG.error("Error writing to sinks {} for the batch for time {}.", sinkNames, logicalStartTime, e);
        ranSuccessfully = false;
    }
    // run onRunFinish() for each sink
    for (String stageName : traversalOrder) {
        SubmitterLifecycle<?> plugin = stages.get(stageName);
        StageSpec stageSpec = phaseSpec.getPhase().getStage(stageName);
        try {
            onRunFinish(pipelineRuntime, sinkFactory, stageSpec, plugin, ranSuccessfully);
        } catch (Exception e) {
            LOG.warn("Unable to execute onRunFinish for sink {}", stageName, e);
        }
    }
}

Example 8 with PluginContext

use of io.cdap.cdap.api.plugin.PluginContext in project cdap by cdapio.

the class SparkStreamingPipelineRunner method getSource.

@Override
protected SparkCollection<RecordInfo<Object>> getSource(StageSpec stageSpec, FunctionCache.Factory functionCacheFactory, StageStatisticsCollector collector) throws Exception {
    StreamingSource<Object> source;
    if (checkpointsDisabled) {
        PluginFunctionContext pluginFunctionContext = new PluginFunctionContext(stageSpec, sec, collector);
        source = pluginFunctionContext.createPlugin();
    } else {
        // check for macros in any StreamingSource. If checkpoints are enabled,
        // SparkStreaming will serialize all InputDStreams created in the checkpoint, which means
        // the InputDStream is deserialized directly from the checkpoint instead of instantiated through CDAP.
        // This means there isn't any way for us to perform macro evaluation on sources when they are loaded from
        // checkpoints. We can work around this in all other pipeline stages by dynamically instantiating the
        // plugin in all DStream functions, but can't for InputDStreams because the InputDStream constructor
        // adds itself to the context dag. Yay for constructors with global side effects.
        // TODO: (HYDRATOR-1030) figure out how to do this at configure time instead of run time
        MacroEvaluator macroEvaluator = new ErrorMacroEvaluator("Due to spark limitations, macro evaluation is not allowed in streaming sources when checkpointing " + "is enabled.");
        PluginContext pluginContext = new SparkPipelinePluginContext(sec.getPluginContext(), sec.getMetrics(), spec.isStageLoggingEnabled(), spec.isProcessTimingEnabled());
        source = pluginContext.newPluginInstance(stageSpec.getName(), macroEvaluator);
    }
    DataTracer dataTracer = sec.getDataTracer(stageSpec.getName());
    StreamingContext sourceContext = new DefaultStreamingContext(stageSpec, sec, streamingContext);
    JavaDStream<Object> javaDStream = source.getStream(sourceContext);
    if (dataTracer.isEnabled()) {
        // it will create a new function for each RDD, which would limit each RDD but not the entire DStream.
        javaDStream = javaDStream.transform(new LimitingFunction<>(spec.getNumOfRecordsPreview()));
    }
    JavaDStream<RecordInfo<Object>> outputDStream = javaDStream.transform(new CountingTransformFunction<>(stageSpec.getName(), sec.getMetrics(), "records.out", dataTracer)).map(new WrapOutputTransformFunction<>(stageSpec.getName()));
    return new DStreamCollection<>(sec, functionCacheFactory, outputDStream);
}

Example 9 with PluginContext

use of io.cdap.cdap.api.plugin.PluginContext in project cdap by cdapio.

the class PipelineAction method run.

@Override
public void run() throws Exception {
    CustomActionContext context = getContext();
    Map<String, String> properties = context.getSpecification().getProperties();
    BatchPhaseSpec phaseSpec = GSON.fromJson(properties.get(Constants.PIPELINEID), BatchPhaseSpec.class);
    PipelinePhase phase = phaseSpec.getPhase();
    StageSpec stageSpec = phase.iterator().next();
    PluginContext pluginContext = new PipelinePluginContext(context, metrics, phaseSpec.isStageLoggingEnabled(), phaseSpec.isProcessTimingEnabled());
    PipelineRuntime pipelineRuntime = new PipelineRuntime(context, metrics);
    Action action = pluginContext.newPluginInstance(stageSpec.getName(), new DefaultMacroEvaluator(pipelineRuntime.getArguments(), context.getLogicalStartTime(), context, context, context.getNamespace()));
    ActionContext actionContext = new BasicActionContext(context, pipelineRuntime, stageSpec);
    if (!context.getDataTracer(stageSpec.getName()).isEnabled()) {
        action.run(actionContext);
    }
    WorkflowToken token = context.getWorkflowToken();
    if (token == null) {
        throw new IllegalStateException("WorkflowToken cannot be null when action is executed through Workflow.");
    }
    for (Map.Entry<String, String> entry : pipelineRuntime.getArguments().getAddedArguments().entrySet()) {
        token.put(entry.getKey(), entry.getValue());
    }
}

Example 10 with PluginContext

use of io.cdap.cdap.api.plugin.PluginContext in project cdap by cdapio.

the class SmartWorkflow method initialize.

@Override
public void initialize(WorkflowContext context) throws Exception {
    super.initialize(context);
    context.enableFieldLineageConsolidation();
    TriggeringScheduleInfo scheduleInfo = context.getTriggeringScheduleInfo();
    if (scheduleInfo != null) {
        String propertiesMappingString = scheduleInfo.getProperties().get(TRIGGERING_PROPERTIES_MAPPING);
        if (propertiesMappingString != null) {
            TriggeringPropertyMapping propertiesMapping = GSON.fromJson(propertiesMappingString, TriggeringPropertyMapping.class);
            updateTokenWithTriggeringProperties(scheduleInfo, propertiesMapping, context.getToken());
        }
    }
    PipelineRuntime pipelineRuntime = new PipelineRuntime(context, workflowMetrics);
    WRAPPERLOGGER.info("Pipeline '{}' is started by user '{}' with arguments {}", context.getApplicationSpecification().getName(), UserGroupInformation.getCurrentUser().getShortUserName(), pipelineRuntime.getArguments().asMap());
    alertPublishers = new HashMap<>();
    postActions = new LinkedHashMap<>();
    spec = GSON.fromJson(context.getWorkflowSpecification().getProperty(Constants.PIPELINE_SPEC_KEY), BatchPipelineSpec.class);
    stageSpecs = new HashMap<>();
    MacroEvaluator macroEvaluator = new DefaultMacroEvaluator(pipelineRuntime.getArguments(), context.getLogicalStartTime(), context, context, context.getNamespace());
    PluginContext pluginContext = new PipelinePluginContext(context, workflowMetrics, spec.isStageLoggingEnabled(), spec.isProcessTimingEnabled());
    for (ActionSpec actionSpec : spec.getEndingActions()) {
        String stageName = actionSpec.getName();
        postActions.put(stageName, pluginContext.newPluginInstance(stageName, macroEvaluator));
        stageSpecs.put(stageName, StageSpec.builder(stageName, actionSpec.getPluginSpec()).setStageLoggingEnabled(spec.isStageLoggingEnabled()).setProcessTimingEnabled(spec.isProcessTimingEnabled()).setMaxPreviewRecords(spec.getNumOfRecordsPreview()).build());
    }
    for (StageSpec stageSpec : spec.getStages()) {
        String stageName = stageSpec.getName();
        stageSpecs.put(stageName, stageSpec);
        if (AlertPublisher.PLUGIN_TYPE.equals(stageSpec.getPluginType())) {
            AlertPublisher alertPublisher = context.newPluginInstance(stageName, macroEvaluator);
            alertPublishers.put(stageName, alertPublisher);
        }
    }
    WRAPPERLOGGER.info("Pipeline '{}' running", context.getApplicationSpecification().getName());
}