use of io.siddhi.core.util.transport.MultiClientDistributedSink in project siddhi by wso2.
the class DefinitionParserHelper method addEventSink.
public static void addEventSink(StreamDefinition streamDefinition, StreamJunction streamJunction, ConcurrentMap<String, List<Sink>> eventSinkMap, SiddhiAppContext siddhiAppContext) {
for (Annotation sinkAnnotation : streamDefinition.getAnnotations()) {
if (SiddhiConstants.ANNOTATION_SINK.equalsIgnoreCase(sinkAnnotation.getName())) {
try {
sinkAnnotation = updateAnnotationRef(sinkAnnotation, SiddhiConstants.NAMESPACE_SINK, siddhiAppContext);
Annotation mapAnnotation = AnnotationHelper.getAnnotation(SiddhiConstants.ANNOTATION_MAP, sinkAnnotation.getAnnotations());
String sinkType = sinkAnnotation.getElement(SiddhiConstants.ANNOTATION_ELEMENT_TYPE);
if (sinkType == null) {
throw new SiddhiAppCreationException("Attribute 'type' does not exist for annotation '" + sinkAnnotation + "'", sinkAnnotation, siddhiAppContext);
}
if (mapAnnotation == null) {
mapAnnotation = Annotation.annotation(SiddhiConstants.ANNOTATION_MAP).element(SiddhiConstants.ANNOTATION_ELEMENT_TYPE, "passThrough");
}
Annotation distributionAnnotation = AnnotationHelper.getAnnotation(SiddhiConstants.ANNOTATION_DISTRIBUTION, sinkAnnotation.getAnnotations());
if (mapAnnotation != null) {
String[] supportedDynamicOptions = null;
List<OptionHolder> destinationOptHolders = new ArrayList<>();
List<Map<String, String>> destinationDeploymentProperties = new ArrayList<>();
Extension sinkExtension = constructExtension(streamDefinition, SiddhiConstants.ANNOTATION_SINK, sinkType, sinkAnnotation, SiddhiConstants.NAMESPACE_SINK);
ConfigReader sinkConfigReader = siddhiAppContext.getSiddhiContext().getConfigManager().generateConfigReader(sinkExtension.getNamespace(), sinkExtension.getName());
final boolean isDistributedTransport = (distributionAnnotation != null);
boolean isMultiClient = false;
if (isDistributedTransport) {
Sink sink = createSink(sinkExtension, siddhiAppContext);
isMultiClient = isMultiClientDistributedTransport(sink, streamDefinition, distributionAnnotation, siddhiAppContext);
supportedDynamicOptions = sink.getSupportedDynamicOptions();
destinationOptHolders = createDestinationOptionHolders(distributionAnnotation, streamDefinition, sink, siddhiAppContext);
destinationDeploymentProperties = createDestinationDeploymentProperties(distributionAnnotation, sink);
}
final String mapType = mapAnnotation.getElement(SiddhiConstants.ANNOTATION_ELEMENT_TYPE);
if (mapType != null) {
Sink sink;
if (isDistributedTransport) {
sink = (isMultiClient) ? new MultiClientDistributedSink() : new SingleClientDistributedSink();
} else {
sink = createSink(sinkExtension, siddhiAppContext);
}
if (supportedDynamicOptions == null) {
supportedDynamicOptions = sink.getSupportedDynamicOptions();
}
// load output mapper extension
Extension mapperExtension = constructExtension(streamDefinition, SiddhiConstants.ANNOTATION_MAP, mapType, sinkAnnotation, SiddhiConstants.NAMESPACE_SINK_MAPPER);
ConfigReader mapperConfigReader = siddhiAppContext.getSiddhiContext().getConfigManager().generateConfigReader(sinkExtension.getNamespace(), sinkExtension.getName());
SinkMapper sinkMapper = (SinkMapper) SiddhiClassLoader.loadExtensionImplementation(mapperExtension, SinkMapperExecutorExtensionHolder.getInstance(siddhiAppContext));
io.siddhi.annotation.Extension sinkExt = sink.getClass().getAnnotation(io.siddhi.annotation.Extension.class);
OptionHolder transportOptionHolder = constructOptionHolder(streamDefinition, sinkAnnotation, sinkExt, supportedDynamicOptions, true);
Map<String, String> deploymentProperties = createDeploymentProperties(sinkAnnotation, sinkExt);
OptionHolder mapOptionHolder = constructOptionHolder(streamDefinition, mapAnnotation, sinkMapper.getClass().getAnnotation(io.siddhi.annotation.Extension.class), sinkMapper.getSupportedDynamicOptions(), false);
List<Element> payloadElementList = getPayload(mapAnnotation);
OptionHolder distributionOptHolder = null;
SinkHandlerManager sinkHandlerManager = siddhiAppContext.getSiddhiContext().getSinkHandlerManager();
SinkHandler sinkHandler = null;
if (sinkHandlerManager != null) {
sinkHandler = sinkHandlerManager.generateSinkHandler();
}
if (isDistributedTransport) {
distributionOptHolder = constructOptionHolder(streamDefinition, distributionAnnotation, sinkExt, supportedDynamicOptions, true);
String strategyType = distributionOptHolder.validateAndGetStaticValue(SiddhiConstants.DISTRIBUTION_STRATEGY_KEY);
Extension strategyExtension = constructExtension(streamDefinition, SiddhiConstants.ANNOTATION_SINK, strategyType, sinkAnnotation, SiddhiConstants.NAMESPACE_DISTRIBUTION_STRATEGY);
ConfigReader configReader = siddhiAppContext.getSiddhiContext().getConfigManager().generateConfigReader(strategyExtension.getNamespace(), strategyExtension.getName());
DistributionStrategy distributionStrategy = (DistributionStrategy) SiddhiClassLoader.loadExtensionImplementation(strategyExtension, DistributionStrategyExtensionHolder.getInstance(siddhiAppContext));
distributionStrategy.init(streamDefinition, transportOptionHolder, distributionOptHolder, destinationOptHolders, configReader);
((DistributedTransport) sink).init(streamDefinition, sinkType, transportOptionHolder, sinkConfigReader, sinkMapper, mapType, mapOptionHolder, sinkHandler, payloadElementList, mapperConfigReader, streamJunction, siddhiAppContext, destinationOptHolders, sinkAnnotation, distributionStrategy, supportedDynamicOptions, deploymentProperties, destinationDeploymentProperties);
} else {
sink.init(streamDefinition, sinkType, transportOptionHolder, sinkConfigReader, sinkMapper, mapType, mapOptionHolder, sinkHandler, payloadElementList, mapperConfigReader, deploymentProperties, streamJunction, siddhiAppContext);
}
if (sinkHandlerManager != null) {
sinkHandlerManager.registerSinkHandler(sinkHandler.getId(), sinkHandler);
}
validateSinkMapperCompatibility(streamDefinition, sinkType, mapType, sink, sinkMapper, sinkAnnotation);
// Setting the output group determiner
OutputGroupDeterminer groupDeterminer = constructOutputGroupDeterminer(transportOptionHolder, distributionOptHolder, streamDefinition, destinationOptHolders.size());
if (groupDeterminer != null) {
sink.getMapper().setGroupDeterminer(groupDeterminer);
}
List<Sink> eventSinks = eventSinkMap.get(streamDefinition.getId());
if (eventSinks == null) {
eventSinks = new ArrayList<>();
eventSinks.add(sink);
eventSinkMap.put(streamDefinition.getId(), eventSinks);
} else {
eventSinks.add(sink);
}
} else {
throw new SiddhiAppCreationException("Attribute 'type' does not exist for annotation '" + mapAnnotation + "'", mapAnnotation, siddhiAppContext);
}
} else {
throw new SiddhiAppCreationException("Both @sink(type=) and @map(type=) are required.", sinkAnnotation.getQueryContextStartIndex(), sinkAnnotation.getQueryContextEndIndex());
}
} catch (Throwable t) {
ExceptionUtil.populateQueryContext(t, sinkAnnotation, siddhiAppContext);
throw t;
}
}
}
}
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