private SiddhiManager createMockSiddhiManager(
String[] inputStreamDefinitions, String executionPlan) throws SiddhiParserException {
SiddhiConfiguration siddhiConfig = new SiddhiConfiguration();
siddhiConfig.setSiddhiExtensions(SiddhiExtensionLoader.loadSiddhiExtensions());
SiddhiManager siddhiManager = new SiddhiManager(siddhiConfig);
try {
int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
if (tenantId > -1) {
DataSourceManager.getInstance().initTenant(tenantId);
}
List<CarbonDataSource> dataSources =
EventProcessorValueHolder.getDataSourceService().getAllDataSources();
for (CarbonDataSource cds : dataSources) {
try {
if (cds.getDSObject() instanceof DataSource) {
siddhiManager
.getSiddhiContext()
.addDataSource(cds.getDSMInfo().getName(), (DataSource) cds.getDSObject());
}
} catch (Exception e) {
log.error("Unable to add the datasource" + cds.getDSMInfo().getName(), e);
}
}
} catch (DataSourceException e) {
log.error("Unable to access the datasource service", e);
}
for (String streamDefinition : inputStreamDefinitions) {
if (streamDefinition.trim().length() > 0) {
siddhiManager.defineStream(streamDefinition);
}
}
siddhiManager.addExecutionPlan(executionPlan);
return siddhiManager;
}
private void removeExecutionPlanConfiguration(String name, int tenantId) {
Map<String, ExecutionPlan> executionPlanMap = tenantSpecificExecutionPlans.get(tenantId);
if (executionPlanMap != null && executionPlanMap.containsKey(name)) {
ExecutionPlan executionPlan = executionPlanMap.remove(name);
executionPlan.shutdown();
ExecutionPlanConfiguration executionPlanConfiguration =
executionPlan.getExecutionPlanConfiguration();
// releasing junction listeners.
for (SiddhiEventConsumer eventConsumer : executionPlan.getSiddhiEventConsumers()) {
EventProcessorValueHolder.getEventStreamService().unsubscribe(eventConsumer, tenantId);
}
for (EventProducer eventProducer : executionPlan.getEventProducers()) {
EventProcessorValueHolder.getEventStreamService().unsubscribe(eventProducer, tenantId);
}
}
}
private SiddhiConfiguration getSiddhiConfigurationFor(
ExecutionPlanConfiguration executionPlanConfiguration, int tenantId)
throws ServiceDependencyValidationException {
SiddhiConfiguration siddhiConfig = new SiddhiConfiguration();
siddhiConfig.setAsyncProcessing(false);
siddhiConfig.setInstanceIdentifier(
"org.wso2.siddhi.instance-" + tenantId + "-" + UUID.randomUUID().toString());
String isDistributedProcessingEnabledString =
executionPlanConfiguration
.getSiddhiConfigurationProperties()
.get(EventProcessorConstants.SIDDHI_DISTRIBUTED_PROCESSING);
if (isDistributedProcessingEnabledString != null
&& (isDistributedProcessingEnabledString.equalsIgnoreCase("DistributedCache")
|| isDistributedProcessingEnabledString.equalsIgnoreCase("true"))) {
siddhiConfig.setDistributedProcessing(true);
if (EventProcessorValueHolder.getHazelcastInstance() != null) {
siddhiConfig.setInstanceIdentifier(
EventProcessorValueHolder.getHazelcastInstance().getName());
} else {
throw new ServiceDependencyValidationException(
EventProcessorConstants.HAZELCAST_INSTANCE, "Hazelcast instance is not initialized.");
}
} else if (isDistributedProcessingEnabledString != null
&& isDistributedProcessingEnabledString.equalsIgnoreCase("RedundantNode")) {
siddhiConfig.setDistributedProcessing(false);
if (EventProcessorValueHolder.getHazelcastInstance() != null) {
siddhiConfig.setInstanceIdentifier(
EventProcessorValueHolder.getHazelcastInstance().getName());
} else {
throw new ServiceDependencyValidationException(
EventProcessorConstants.HAZELCAST_INSTANCE, "Hazelcast instance is not initialized.");
}
} else {
siddhiConfig.setDistributedProcessing(false);
}
siddhiConfig.setQueryPlanIdentifier(
"org.wso2.siddhi-" + tenantId + "-" + executionPlanConfiguration.getName());
siddhiConfig.setSiddhiExtensions(SiddhiExtensionLoader.loadSiddhiExtensions());
return siddhiConfig;
}
public void tryBecomeCoordinator() {
HazelcastInstance hazelcastInstance = EventProcessorValueHolder.getHazelcastInstance();
if (hazelcastInstance != null) {
if (!isStormCoordinator()) {
ILock lock = hazelcastInstance.getLock("StormCoordinator");
boolean isCoordinator = lock.tryLock();
if (isCoordinator) {
log.info("Node became Storm coordinator");
}
setStormCoordinator(isCoordinator);
}
}
}
public static void loadDataSourceConfiguration(SiddhiManager siddhiManager) {
try {
int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
if (tenantId > -1) {
DataSourceManager.getInstance().initTenant(tenantId);
}
List<CarbonDataSource> dataSources =
EventProcessorValueHolder.getDataSourceService().getAllDataSources();
for (CarbonDataSource cds : dataSources) {
try {
if (cds.getDSObject() instanceof DataSource) {
siddhiManager.setDataSource(cds.getDSMInfo().getName(), (DataSource) cds.getDSObject());
}
} catch (Exception e) {
log.error("Unable to add the datasource" + cds.getDSMInfo().getName(), e);
}
}
} catch (DataSourceException e) {
log.error("Unable to populate the data sources in Siddhi engine.", e);
}
}
private SiddhiManager getSiddhiManagerFor(
ExecutionPlanConfiguration executionPlanConfiguration,
SiddhiConfiguration siddhiConfig,
Map<String, InputHandler> inputHandlerMap)
throws ExecutionPlanConfigurationException {
SiddhiManager siddhiManager = new SiddhiManager(siddhiConfig);
try {
int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
if (tenantId > -1) {
DataSourceManager.getInstance().initTenant(tenantId);
}
List<CarbonDataSource> dataSources =
EventProcessorValueHolder.getDataSourceService().getAllDataSources();
for (CarbonDataSource cds : dataSources) {
try {
if (cds.getDSObject() instanceof DataSource) {
siddhiManager
.getSiddhiContext()
.addDataSource(cds.getDSMInfo().getName(), (DataSource) cds.getDSObject());
}
} catch (Exception e) {
log.error("Unable to add the datasource" + cds.getDSMInfo().getName(), e);
}
}
} catch (DataSourceException e) {
log.error("Unable to populate the data sources in Siddhi engine.", e);
}
int persistenceTimeInterval = 0;
try {
persistenceTimeInterval =
Integer.parseInt(
executionPlanConfiguration
.getSiddhiConfigurationProperties()
.get(EventProcessorConstants.SIDDHI_SNAPSHOT_INTERVAL));
} catch (NumberFormatException e) {
log.error("Unable to parse snapshot time interval.", e);
}
if (persistenceTimeInterval > 0) {
if (null == EventProcessorValueHolder.getPersistenceStore()) {
if (EventProcessorValueHolder.getClusterInformation() == null) {
try {
String adminPassword =
EventProcessorValueHolder.getUserRealm().getRealmConfiguration().getAdminPassword();
String adminUserName =
EventProcessorValueHolder.getUserRealm().getRealmConfiguration().getAdminUserName();
ClusterInformation clusterInformation =
new ClusterInformation(adminUserName, adminPassword);
clusterInformation.setClusterName(CassandraPersistenceStore.CLUSTER_NAME);
EventProcessorValueHolder.setClusterInformation(clusterInformation);
} catch (UserStoreException e) {
log.error("Unable to get realm configuration.", e);
}
}
if (CassandraConnectionValidator.getInstance()
.checkCassandraConnection(
EventProcessorValueHolder.getClusterInformation().getUsername(),
EventProcessorValueHolder.getClusterInformation().getPassword())) {
Cluster cluster =
EventProcessorValueHolder.getDataAccessService()
.getCluster(EventProcessorValueHolder.getClusterInformation());
CassandraPersistenceStore casandraPersistenceStore =
new CassandraPersistenceStore(cluster);
EventProcessorValueHolder.setPersistenceStore(casandraPersistenceStore);
} else {
throw new ExecutionPlanConfigurationException(
"Cannot connect to Cassandra. To run with embedded Cassandra enabled, start the server with command: ./wso2server.sh -Ddisable.cassandra.server.startup=false");
}
}
siddhiManager.setPersistStore(EventProcessorValueHolder.getPersistenceStore());
}
return siddhiManager;
}
public void addExecutionPlanConfiguration(
ExecutionPlanConfiguration executionPlanConfiguration, AxisConfiguration axisConfiguration)
throws ExecutionPlanDependencyValidationException, ExecutionPlanConfigurationException,
ServiceDependencyValidationException {
int tenantId = PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantId();
Map<String, ExecutionPlan> tenantExecutionPlans = tenantSpecificExecutionPlans.get(tenantId);
if (tenantExecutionPlans == null) {
tenantExecutionPlans = new ConcurrentHashMap<String, ExecutionPlan>();
tenantSpecificExecutionPlans.put(tenantId, tenantExecutionPlans);
} else if (tenantExecutionPlans.get(executionPlanConfiguration.getName()) != null) {
// if an execution plan with the same name already exists, we are not going to override it
// with this plan.
throw new ExecutionPlanConfigurationException(
"Execution plan with the same name already exists. Please remove it and retry.");
}
// This iteration exists only as a check. Actual usage of imported stream configs is further
// down
for (StreamConfiguration streamConfiguration :
executionPlanConfiguration.getImportedStreams()) {
try {
StreamDefinition streamDefinition =
EventProcessorValueHolder.getEventStreamService()
.getStreamDefinition(streamConfiguration.getStreamId(), tenantId);
if (streamDefinition == null) {
throw new ExecutionPlanDependencyValidationException(
streamConfiguration.getStreamId(),
"Imported Stream " + streamConfiguration.getStreamId() + " does not exist");
}
} catch (EventStreamConfigurationException e) {
throw new ExecutionPlanConfigurationException(
"Error in retrieving stream ID : " + streamConfiguration.getStreamId());
}
}
// This iteration exists only as a check. Actual usage of exported stream configs is further
// down
for (StreamConfiguration streamConfiguration :
executionPlanConfiguration.getExportedStreams()) {
try {
StreamDefinition streamDefinition =
EventProcessorValueHolder.getEventStreamService()
.getStreamDefinition(streamConfiguration.getStreamId(), tenantId);
if (streamDefinition == null) {
throw new ExecutionPlanDependencyValidationException(
streamConfiguration.getStreamId(),
"Exported Stream " + streamConfiguration.getStreamId() + " does not exist");
}
} catch (EventStreamConfigurationException e) {
throw new ExecutionPlanConfigurationException(
"Error in retrieving stream ID : " + streamConfiguration.getStreamId());
}
}
Map<String, InputHandler> inputHandlerMap =
new ConcurrentHashMap<String, InputHandler>(
executionPlanConfiguration.getImportedStreams().size());
SiddhiConfiguration siddhiConfig =
getSiddhiConfigurationFor(executionPlanConfiguration, tenantId);
SiddhiManager siddhiManager =
getSiddhiManagerFor(executionPlanConfiguration, siddhiConfig, inputHandlerMap);
for (StreamConfiguration importedStreamConfiguration :
executionPlanConfiguration.getImportedStreams()) {
org.wso2.siddhi.query.api.definition.StreamDefinition siddhiStreamDefinition =
new org.wso2.siddhi.query.api.definition.StreamDefinition();
siddhiStreamDefinition.name(importedStreamConfiguration.getSiddhiStreamName());
StreamDefinition streamDefinition = null;
try {
streamDefinition =
EventProcessorValueHolder.getEventStreamService()
.getStreamDefinition(importedStreamConfiguration.getStreamId(), tenantId);
populateAttributes(
siddhiStreamDefinition,
streamDefinition.getMetaData(),
EventProcessorConstants.META + EventProcessorConstants.ATTRIBUTE_SEPARATOR);
populateAttributes(
siddhiStreamDefinition,
streamDefinition.getCorrelationData(),
EventProcessorConstants.CORRELATION + EventProcessorConstants.ATTRIBUTE_SEPARATOR);
populateAttributes(siddhiStreamDefinition, streamDefinition.getPayloadData(), "");
InputHandler inputHandler = siddhiManager.defineStream(siddhiStreamDefinition);
inputHandlerMap.put(streamDefinition.getStreamId(), inputHandler);
log.debug("input handler created for " + siddhiStreamDefinition.getStreamId());
} catch (EventStreamConfigurationException e) {
// ignored as this will not happen
}
}
for (StreamConfiguration exportedStreamConfiguration :
executionPlanConfiguration.getExportedStreams()) {
org.wso2.siddhi.query.api.definition.StreamDefinition siddhiStreamDefinition =
new org.wso2.siddhi.query.api.definition.StreamDefinition();
siddhiStreamDefinition.name(exportedStreamConfiguration.getSiddhiStreamName());
StreamDefinition streamDefinition = null;
try {
streamDefinition =
EventProcessorValueHolder.getEventStreamService()
.getStreamDefinition(exportedStreamConfiguration.getStreamId(), tenantId);
populateAttributes(
siddhiStreamDefinition,
streamDefinition.getMetaData(),
EventProcessorConstants.META + EventProcessorConstants.ATTRIBUTE_SEPARATOR);
populateAttributes(
siddhiStreamDefinition,
streamDefinition.getCorrelationData(),
EventProcessorConstants.CORRELATION + EventProcessorConstants.ATTRIBUTE_SEPARATOR);
populateAttributes(siddhiStreamDefinition, streamDefinition.getPayloadData(), "");
siddhiManager.defineStream(siddhiStreamDefinition);
log.debug("stream defined for " + siddhiStreamDefinition.getStreamId());
} catch (EventStreamConfigurationException e) {
// ignored as this will not happen
}
}
HAManager haManager = null;
String isDistributedProcessingEnabledString =
executionPlanConfiguration
.getSiddhiConfigurationProperties()
.get(EventProcessorConstants.SIDDHI_DISTRIBUTED_PROCESSING);
if (isDistributedProcessingEnabledString != null
&& isDistributedProcessingEnabledString.equalsIgnoreCase("RedundantNode")) {
haManager =
new HAManager(
EventProcessorValueHolder.getHazelcastInstance(),
executionPlanConfiguration.getName(),
tenantId,
siddhiManager,
inputHandlerMap.size(),
currentCepMembershipInfo);
}
try {
siddhiManager.addExecutionPlan(executionPlanConfiguration.getQueryExpressions());
} catch (Exception e) {
throw new ExecutionPlanConfigurationException(
"Invalid query specified, " + e.getMessage(), e);
}
ExecutionPlan executionPlan =
new ExecutionPlan(
executionPlanConfiguration.getName(),
siddhiManager,
executionPlanConfiguration,
haManager);
tenantExecutionPlans.put(executionPlanConfiguration.getName(), executionPlan);
// subscribe output to junction
SindhiStormOutputEventListener stormOutputListener = null;
if (isRunningOnStorm) {
stormOutputListener =
new SindhiStormOutputEventListener(executionPlanConfiguration, tenantId);
}
for (StreamConfiguration exportedStreamConfiguration :
executionPlanConfiguration.getExportedStreams()) {
SiddhiOutputStreamListener streamCallback;
if (haManager != null) {
streamCallback =
new SiddhiHAOutputStreamListener(
exportedStreamConfiguration.getSiddhiStreamName(),
exportedStreamConfiguration.getStreamId(),
executionPlanConfiguration,
tenantId);
haManager.addStreamCallback((SiddhiHAOutputStreamListener) streamCallback);
} else {
streamCallback =
new SiddhiOutputStreamListener(
exportedStreamConfiguration.getSiddhiStreamName(),
exportedStreamConfiguration.getStreamId(),
executionPlanConfiguration,
tenantId);
if (isRunningOnStorm) {
stormOutputListener.registerOutputStreamListener(
exportedStreamConfiguration.getSiddhiStreamName(), streamCallback);
}
}
siddhiManager.addCallback(exportedStreamConfiguration.getSiddhiStreamName(), streamCallback);
try {
EventProcessorValueHolder.getEventStreamService().subscribe(streamCallback, tenantId);
} catch (EventStreamConfigurationException e) {
// ignored as this will never happen
}
executionPlan.addProducer(streamCallback);
}
// subscribe input to junction
for (StreamConfiguration importedStreamConfiguration :
executionPlanConfiguration.getImportedStreams()) {
InputHandler inputHandler = inputHandlerMap.get(importedStreamConfiguration.getStreamId());
AbstractSiddhiInputEventDispatcher eventDispatcher = null;
if (haManager != null) {
eventDispatcher =
new SiddhiHAInputEventDispatcher(
importedStreamConfiguration.getStreamId(),
inputHandler,
executionPlanConfiguration,
tenantId,
haManager.getProcessThreadPoolExecutor(),
haManager.getThreadBarrier());
haManager.addInputEventDispatcher(
importedStreamConfiguration.getStreamId(),
(SiddhiHAInputEventDispatcher) eventDispatcher);
} else if (isRunningOnStorm) {
StreamDefinition streamDefinition = null;
try {
streamDefinition =
EventProcessorValueHolder.getEventStreamService()
.getStreamDefinition(importedStreamConfiguration.getStreamId(), tenantId);
} catch (EventStreamConfigurationException e) {
// Ignore as this would never happen
}
eventDispatcher =
new SiddhiStormInputEventDispatcher(
streamDefinition,
importedStreamConfiguration.getSiddhiStreamName(),
executionPlanConfiguration,
tenantId);
} else {
eventDispatcher =
new SiddhiInputEventDispatcher(
importedStreamConfiguration.getStreamId(),
inputHandler,
executionPlanConfiguration,
tenantId);
}
try {
EventProcessorValueHolder.getEventStreamService().subscribe(eventDispatcher, tenantId);
executionPlan.addConsumer(eventDispatcher);
} catch (EventStreamConfigurationException e) {
// ignored as this will never happen
}
}
if (haManager != null) {
haManager.init();
}
}
public static void validateExecutionPlan(String executionPlan)
throws ExecutionPlanConfigurationException, ExecutionPlanDependencyValidationException {
String planName;
int i = 0; // this is maintained for giving more context info in error messages, when throwing
// exceptions.
ArrayList<String> importedStreams = new ArrayList<String>();
ArrayList<String> exportedStreams = new ArrayList<String>();
Pattern databridgeStreamNamePattern =
Pattern.compile(EventProcessorConstants.DATABRIDGE_STREAM_REGEX);
Pattern streamVersionPattern = Pattern.compile(EventProcessorConstants.STREAM_VER_REGEX);
ExecutionPlan parsedExecPlan = SiddhiCompiler.parse(executionPlan);
Element element =
AnnotationHelper.getAnnotationElement(
EventProcessorConstants.ANNOTATION_NAME_NAME, null, parsedExecPlan.getAnnotations());
if (element == null) { // check if plan name is given
throw new ExecutionPlanConfigurationException(
"Execution plan name is not given. Please specify execution plan name using the annotation "
+ "'"
+ EventProcessorConstants.ANNOTATION_TOKEN_AT
+ EventProcessorConstants.ANNOTATION_PLAN
+ EventProcessorConstants.ANNOTATION_TOKEN_COLON
+ EventProcessorConstants.ANNOTATION_NAME_NAME
+ EventProcessorConstants.ANNOTATION_TOKEN_OPENING_BRACKET
+ EventProcessorConstants.SIDDHI_SINGLE_QUOTE
+ "executionPlanNameHere"
+ EventProcessorConstants.SIDDHI_SINGLE_QUOTE
+ EventProcessorConstants.ANNOTATION_TOKEN_CLOSING_BRACKET
+ "'");
}
planName = element.getValue();
if (planName.equals("")) {
throw new ExecutionPlanConfigurationException(
"Execution plan name is empty. Hence the plan is invalid");
}
if (planName.trim().contains(" ")) {
throw new ExecutionPlanConfigurationException(
"Execution plan name '"
+ planName
+ "' contains whitespaces. Please remove whitespaces.");
}
Map<String, org.wso2.siddhi.query.api.definition.StreamDefinition> streamDefMap =
parsedExecPlan.getStreamDefinitionMap();
for (Map.Entry<String, org.wso2.siddhi.query.api.definition.StreamDefinition> entry :
streamDefMap.entrySet()) {
Element importElement =
AnnotationHelper.getAnnotationElement(
EventProcessorConstants.ANNOTATION_IMPORT, null, entry.getValue().getAnnotations());
Element exportElement =
AnnotationHelper.getAnnotationElement(
EventProcessorConstants.ANNOTATION_EXPORT, null, entry.getValue().getAnnotations());
if (importElement != null && exportElement != null) {
throw new ExecutionPlanConfigurationException(
"Same stream definition has being imported and exported. Please correct "
+ i
+ "th of the "
+ parsedExecPlan.getStreamDefinitionMap().size()
+ "stream definition, with stream id '"
+ entry.getKey()
+ "'");
}
if (importElement
!= null) { // Treating import & export cases separately to give more specific error
// messages.
String atImportLiteral =
EventProcessorConstants.ANNOTATION_TOKEN_AT + EventProcessorConstants.ANNOTATION_IMPORT;
String importElementValue = importElement.getValue();
if (importElementValue == null || importElementValue.trim().isEmpty()) {
throw new ExecutionPlanConfigurationException(
"Imported stream cannot be empty as in '"
+ atImportLiteral
+ EventProcessorConstants.ANNOTATION_TOKEN_OPENING_BRACKET
+ EventProcessorConstants.SIDDHI_SINGLE_QUOTE
+ EventProcessorConstants.SIDDHI_SINGLE_QUOTE
+ EventProcessorConstants.ANNOTATION_TOKEN_CLOSING_BRACKET
+ "'. Please correct "
+ i
+ "th of the "
+ parsedExecPlan.getStreamDefinitionMap().size()
+ "stream definition, with stream id '"
+ entry.getKey()
+ "'");
}
String[] streamIdComponents =
importElementValue.split(EventProcessorConstants.STREAM_SEPARATOR);
if (streamIdComponents.length != 2) {
throw new ExecutionPlanConfigurationException(
"Found malformed "
+ atImportLiteral
+ " element '"
+ importElementValue
+ "'. "
+ atImportLiteral
+ " annotation should take the form '"
+ atImportLiteral
+ EventProcessorConstants.ANNOTATION_TOKEN_OPENING_BRACKET
+ EventProcessorConstants.SIDDHI_SINGLE_QUOTE
+ "streamName"
+ EventProcessorConstants.STREAM_SEPARATOR
+ "StreamVersion"
+ EventProcessorConstants.SIDDHI_SINGLE_QUOTE
+ EventProcessorConstants.ANNOTATION_TOKEN_CLOSING_BRACKET
+ "'. There should be a '"
+ EventProcessorConstants.STREAM_SEPARATOR
+ "' character, separating the streamName and its version");
}
if ((!databridgeStreamNamePattern.matcher(streamIdComponents[0].trim()).matches())) {
throw new ExecutionPlanConfigurationException(
"Invalid imported stream name["
+ streamIdComponents[0]
+ "] in execution plan:"
+ planName
+ ". Stream name should match the regex '"
+ EventProcessorConstants.DATABRIDGE_STREAM_REGEX
+ "'");
}
Matcher m = streamVersionPattern.matcher(streamIdComponents[1].trim());
if (!m.matches()) {
throw new ExecutionPlanConfigurationException(
"Invalid stream version ["
+ streamIdComponents[1]
+ "] for stream name "
+ streamIdComponents[0]
+ " in execution plan: "
+ planName
+ ". Stream version should match the regex '"
+ EventProcessorConstants.STREAM_VER_REGEX
+ "'");
}
validateSiddhiStreamWithDatabridgeStream(
streamIdComponents[0], streamIdComponents[1], entry.getValue());
if (exportedStreams.contains(
importElementValue)) { // check if same stream has been imported and exported.
throw new ExecutionPlanConfigurationException(
"Imported stream '"
+ importElementValue
+ "' is also among the exported streams. Hence the execution plan is invalid");
}
importedStreams.add(importElementValue);
}
if (exportElement != null) {
String atExportLiteral =
EventProcessorConstants.ANNOTATION_TOKEN_AT + EventProcessorConstants.ANNOTATION_EXPORT;
String exportElementValue = exportElement.getValue();
if (exportElementValue == null || exportElementValue.trim().isEmpty()) {
throw new ExecutionPlanConfigurationException(
"Exported stream cannot be empty as in '"
+ atExportLiteral
+ EventProcessorConstants.ANNOTATION_TOKEN_OPENING_BRACKET
+ EventProcessorConstants.SIDDHI_SINGLE_QUOTE
+ EventProcessorConstants.SIDDHI_SINGLE_QUOTE
+ EventProcessorConstants.ANNOTATION_TOKEN_CLOSING_BRACKET
+ "'. Please correct "
+ i
+ "th of the "
+ parsedExecPlan.getStreamDefinitionMap().size()
+ "stream definition, with stream id '"
+ entry.getKey());
}
String[] streamIdComponents =
exportElementValue.split(EventProcessorConstants.STREAM_SEPARATOR);
if (streamIdComponents.length != 2) {
throw new ExecutionPlanConfigurationException(
"Found malformed "
+ atExportLiteral
+ " element '"
+ exportElementValue
+ "'. "
+ atExportLiteral
+ " annotation should take the form '"
+ atExportLiteral
+ EventProcessorConstants.ANNOTATION_TOKEN_OPENING_BRACKET
+ EventProcessorConstants.SIDDHI_SINGLE_QUOTE
+ "streamName"
+ EventProcessorConstants.STREAM_SEPARATOR
+ "StreamVersion"
+ EventProcessorConstants.SIDDHI_SINGLE_QUOTE
+ EventProcessorConstants.ANNOTATION_TOKEN_CLOSING_BRACKET
+ "'. There should be a '"
+ EventProcessorConstants.STREAM_SEPARATOR
+ "' character, separating the streamName and its version");
}
if ((!databridgeStreamNamePattern.matcher(streamIdComponents[0].trim()).matches())) {
throw new ExecutionPlanConfigurationException(
"Invalid exported stream name["
+ streamIdComponents[0]
+ "] in execution plan:"
+ planName
+ ". Stream name should match the regex '"
+ EventProcessorConstants.DATABRIDGE_STREAM_REGEX
+ "'");
}
Matcher m = streamVersionPattern.matcher(streamIdComponents[1].trim());
if (!m.matches()) {
throw new ExecutionPlanConfigurationException(
"Invalid stream version ["
+ streamIdComponents[1]
+ "] for stream name "
+ streamIdComponents[0]
+ " in execution plan: "
+ planName
+ ". Stream version should match the regex '"
+ EventProcessorConstants.STREAM_VER_REGEX
+ "'");
}
validateSiddhiStreamWithDatabridgeStream(
streamIdComponents[0], streamIdComponents[1], entry.getValue());
if (importedStreams.contains(exportElementValue)) {
throw new ExecutionPlanConfigurationException(
"Exported stream '"
+ exportElementValue
+ "' is also among the imported streams. Hence the execution plan is invalid");
}
exportedStreams.add(exportElementValue);
}
i++;
}
SiddhiManager siddhiManager = EventProcessorValueHolder.getSiddhiManager();
loadDataSourceConfiguration(siddhiManager);
try {
siddhiManager.validateExecutionPlan(executionPlan);
} catch (Throwable t) {
throw new ExecutionPlanConfigurationException(t.getMessage(), t);
}
}
private static boolean validateSiddhiStreamWithDatabridgeStream(
String streamName,
String streamVersion,
org.wso2.siddhi.query.api.definition.StreamDefinition siddhiStreamDefinition)
throws ExecutionPlanConfigurationException, ExecutionPlanDependencyValidationException {
if (siddhiStreamDefinition == null) {
throw new ExecutionPlanDependencyValidationException(
streamName + EventProcessorConstants.STREAM_SEPARATOR + streamVersion,
"Cannot validate null Siddhi stream for the stream: "
+ streamName
+ EventProcessorConstants.STREAM_SEPARATOR
+ streamVersion
+ " ");
}
EventStreamService eventStreamService = EventProcessorValueHolder.getEventStreamService();
try {
StreamDefinition streamDefinition =
eventStreamService.getStreamDefinition(streamName, streamVersion);
if (streamDefinition != null) {
String siddhiAttributeName;
int attributeCount = 0;
int streamSize =
(streamDefinition.getMetaData() == null ? 0 : streamDefinition.getMetaData().size())
+ (streamDefinition.getCorrelationData() == null
? 0
: streamDefinition.getCorrelationData().size())
+ (streamDefinition.getPayloadData() == null
? 0
: streamDefinition.getPayloadData().size());
if (siddhiStreamDefinition.getAttributeList().size() != streamSize) {
throw new ExecutionPlanDependencyValidationException(
streamName + EventProcessorConstants.STREAM_SEPARATOR + streamVersion,
"No of attributes in stream "
+ streamName
+ EventProcessorConstants.STREAM_SEPARATOR
+ streamVersion
+ " do not match the no of attributes in Siddhi stream");
}
if (streamDefinition.getMetaData() != null) {
for (Attribute attribute : streamDefinition.getMetaData()) {
siddhiAttributeName = EventProcessorConstants.META_PREFIX + attribute.getName();
org.wso2.siddhi.query.api.definition.Attribute.Type type =
siddhiStreamDefinition.getAttributeType(siddhiAttributeName);
// null check for type not required since an exception is thrown by Siddhi
// StreamDefinition.getAttributeType() method for non-existent attributes
if (siddhiStreamDefinition.getAttributePosition(siddhiAttributeName)
!= attributeCount++) {
throw new ExecutionPlanDependencyValidationException(
streamName + EventProcessorConstants.STREAM_SEPARATOR + streamVersion,
"Stream "
+ streamName
+ EventProcessorConstants.STREAM_SEPARATOR
+ streamVersion
+ "; Attribute positions do not match for attribute: "
+ attribute.getName());
}
if (!isMatchingType(type, attribute.getType())) {
throw new ExecutionPlanDependencyValidationException(
streamName + EventProcessorConstants.STREAM_SEPARATOR + streamVersion,
"Stream "
+ streamName
+ EventProcessorConstants.STREAM_SEPARATOR
+ streamVersion
+ "; Type mismatch for attribute: "
+ attribute.getName());
}
}
}
if (streamDefinition.getCorrelationData() != null) {
for (Attribute attribute : streamDefinition.getCorrelationData()) {
siddhiAttributeName = EventProcessorConstants.CORRELATION_PREFIX + attribute.getName();
org.wso2.siddhi.query.api.definition.Attribute.Type type =
siddhiStreamDefinition.getAttributeType(siddhiAttributeName);
// null check for type not required since an exception is thrown by Siddhi
// StreamDefinition.getAttributeType() method for non-existent attributes
if (siddhiStreamDefinition.getAttributePosition(siddhiAttributeName)
!= attributeCount++) {
throw new ExecutionPlanDependencyValidationException(
streamName + EventProcessorConstants.STREAM_SEPARATOR + streamVersion,
"Stream "
+ streamName
+ EventProcessorConstants.STREAM_SEPARATOR
+ streamVersion
+ "; Attribute positions do not match for attribute: "
+ attribute.getName());
}
if (!isMatchingType(type, attribute.getType())) {
throw new ExecutionPlanDependencyValidationException(
streamName + EventProcessorConstants.STREAM_SEPARATOR + streamVersion,
"Stream "
+ streamName
+ EventProcessorConstants.STREAM_SEPARATOR
+ streamVersion
+ "; Type mismatch for attribute: "
+ attribute.getName());
}
}
}
if (streamDefinition.getPayloadData() != null) {
for (Attribute attribute : streamDefinition.getPayloadData()) {
siddhiAttributeName = attribute.getName();
org.wso2.siddhi.query.api.definition.Attribute.Type type =
siddhiStreamDefinition.getAttributeType(siddhiAttributeName);
// null check for type not required since an exception is thrown by Siddhi
// StreamDefinition.getAttributeType() method for non-existent attributes
if (siddhiStreamDefinition.getAttributePosition(siddhiAttributeName)
!= attributeCount++) {
throw new ExecutionPlanDependencyValidationException(
streamName + EventProcessorConstants.STREAM_SEPARATOR + streamVersion,
"Stream "
+ streamName
+ EventProcessorConstants.STREAM_SEPARATOR
+ streamVersion
+ "; Attribute positions do not match for attribute: "
+ attribute.getName());
}
if (!isMatchingType(type, attribute.getType())) {
throw new ExecutionPlanDependencyValidationException(
streamName + EventProcessorConstants.STREAM_SEPARATOR + streamVersion,
"Stream "
+ streamName
+ EventProcessorConstants.STREAM_SEPARATOR
+ streamVersion
+ "; Type mismatch for attribute: "
+ attribute.getName());
}
}
}
return true;
}
} catch (EventStreamConfigurationException e) {
throw new ExecutionPlanConfigurationException(
"Error while validating stream definition with store : " + e.getMessage(), e);
} catch (AttributeNotExistException e) {
throw new ExecutionPlanDependencyValidationException(
streamName + EventProcessorConstants.STREAM_SEPARATOR + streamVersion, e.getMessage());
}
throw new ExecutionPlanDependencyValidationException(
streamName + EventProcessorConstants.STREAM_SEPARATOR + streamVersion,
"Stream "
+ streamName
+ EventProcessorConstants.STREAM_SEPARATOR
+ streamVersion
+ " does not exist");
}