/**
* Adds configured variables to the variable service.
*
* @param variableService service to add to
* @param variables configured variables
*/
protected static void initVariables(
VariableService variableService,
Map<String, ConfigurationVariable> variables,
EngineImportService engineImportService) {
for (Map.Entry<String, ConfigurationVariable> entry : variables.entrySet()) {
try {
Pair<String, Boolean> arrayType =
JavaClassHelper.isGetArrayType(entry.getValue().getType());
variableService.createNewVariable(
null,
entry.getKey(),
arrayType.getFirst(),
entry.getValue().isConstant(),
arrayType.getSecond(),
false,
entry.getValue().getInitializationValue(),
engineImportService);
variableService.allocateVariableState(entry.getKey(), 0, null);
} catch (VariableExistsException e) {
throw new ConfigurationException("Error configuring variables: " + e.getMessage(), e);
} catch (VariableTypeException e) {
throw new ConfigurationException("Error configuring variables: " + e.getMessage(), e);
}
}
}
private static Map<String, Set<String>> toTypesReferences(
Map<String, ? extends ConfigurationEventTypeWithSupertype> mapTypeConfigurations) {
Map<String, Set<String>> result = new LinkedHashMap<String, Set<String>>();
for (Map.Entry<String, ? extends ConfigurationEventTypeWithSupertype> entry :
mapTypeConfigurations.entrySet()) {
result.put(entry.getKey(), entry.getValue().getSuperTypes());
}
return result;
}
private static Map<String, Object> resolveClassesForStringPropertyTypes(
Map<String, Object> properties) {
Map<String, Object> propertyTypes = new LinkedHashMap<String, Object>();
for (Map.Entry entry : properties.entrySet()) {
String property = (String) entry.getKey();
propertyTypes.put(property, entry.getValue());
if (!(entry.getValue() instanceof String)) {
continue;
}
String className = (String) entry.getValue();
Class clazz = resolveClassForTypeName(className);
if (clazz != null) {
propertyTypes.put(property, clazz);
}
}
return propertyTypes;
}
private List<EventBean> execute(
PreparedStatement preparedStatement, Object[] lookupValuePerStream) {
if (ExecutionPathDebugLog.isDebugEnabled && log.isInfoEnabled()) {
log.info(".execute Executing prepared statement '" + preparedStatementText + "'");
}
// set parameters
SQLInputParameterContext inputParameterContext = null;
if (columnTypeConversionHook != null) {
inputParameterContext = new SQLInputParameterContext();
}
int count = 1;
for (int i = 0; i < lookupValuePerStream.length; i++) {
try {
Object parameter = lookupValuePerStream[i];
if (ExecutionPathDebugLog.isDebugEnabled && log.isInfoEnabled()) {
log.info(
".execute Setting parameter "
+ count
+ " to "
+ parameter
+ " typed "
+ ((parameter == null) ? "null" : parameter.getClass()));
}
if (columnTypeConversionHook != null) {
inputParameterContext.setParameterNumber(i + 1);
inputParameterContext.setParameterValue(parameter);
parameter = columnTypeConversionHook.getParameterValue(inputParameterContext);
}
setObject(preparedStatement, count, parameter);
} catch (SQLException ex) {
throw new EPException("Error setting parameter " + count, ex);
}
count++;
}
// execute
ResultSet resultSet;
if (enableJDBCLogging && jdbcPerfLog.isInfoEnabled()) {
long startTimeNS = System.nanoTime();
long startTimeMS = System.currentTimeMillis();
try {
resultSet = preparedStatement.executeQuery();
} catch (SQLException ex) {
throw new EPException("Error executing statement '" + preparedStatementText + '\'', ex);
}
long endTimeNS = System.nanoTime();
long endTimeMS = System.currentTimeMillis();
jdbcPerfLog.info(
"Statement '"
+ preparedStatementText
+ "' delta nanosec "
+ (endTimeNS - startTimeNS)
+ " delta msec "
+ (endTimeMS - startTimeMS));
} else {
try {
resultSet = preparedStatement.executeQuery();
} catch (SQLException ex) {
throw new EPException("Error executing statement '" + preparedStatementText + '\'', ex);
}
}
// generate events for result set
List<EventBean> rows = new LinkedList<EventBean>();
try {
SQLColumnValueContext valueContext = null;
if (columnTypeConversionHook != null) {
valueContext = new SQLColumnValueContext();
}
SQLOutputRowValueContext rowContext = null;
if (outputRowConversionHook != null) {
rowContext = new SQLOutputRowValueContext();
}
int rowNum = 0;
while (resultSet.next()) {
int colNum = 1;
Map<String, Object> row = new HashMap<String, Object>();
for (Map.Entry<String, DBOutputTypeDesc> entry : outputTypes.entrySet()) {
String columnName = entry.getKey();
Object value;
DatabaseTypeBinding binding = entry.getValue().getOptionalBinding();
if (binding != null) {
value = binding.getValue(resultSet, columnName);
} else {
value = resultSet.getObject(columnName);
}
if (columnTypeConversionHook != null) {
valueContext.setColumnName(columnName);
valueContext.setColumnNumber(colNum);
valueContext.setColumnValue(value);
valueContext.setResultSet(resultSet);
value = columnTypeConversionHook.getColumnValue(valueContext);
}
row.put(columnName, value);
colNum++;
}
EventBean eventBeanRow = null;
if (this.outputRowConversionHook == null) {
eventBeanRow = eventAdapterService.adapterForTypedMap(row, eventType);
} else {
rowContext.setValues(row);
rowContext.setRowNum(rowNum);
rowContext.setResultSet(resultSet);
Object rowData = outputRowConversionHook.getOutputRow(rowContext);
if (rowData != null) {
eventBeanRow =
eventAdapterService.adapterForTypedBean(rowData, (BeanEventType) eventType);
}
}
if (eventBeanRow != null) {
rows.add(eventBeanRow);
rowNum++;
}
}
} catch (SQLException ex) {
throw new EPException(
"Error reading results for statement '" + preparedStatementText + '\'', ex);
}
if (enableJDBCLogging && jdbcPerfLog.isInfoEnabled()) {
jdbcPerfLog.info("Statement '" + preparedStatementText + "' " + rows.size() + " rows");
}
try {
resultSet.close();
} catch (SQLException ex) {
throw new EPException("Error closing statement '" + preparedStatementText + '\'', ex);
}
return rows;
}
/**
* Initialize event adapter service for config snapshot.
*
* @param eventAdapterService is events adapter
* @param configSnapshot is the config snapshot
*/
protected static void init(
EventAdapterService eventAdapterService, ConfigurationInformation configSnapshot) {
// Extract legacy event type definitions for each event type name, if supplied.
//
// We supply this information as setup information to the event adapter service
// to allow discovery of superclasses and interfaces during event type construction for bean
// events,
// such that superclasses and interfaces can use the legacy type definitions.
Map<String, ConfigurationEventTypeLegacy> classLegacyInfo =
new HashMap<String, ConfigurationEventTypeLegacy>();
for (Map.Entry<String, String> entry : configSnapshot.getEventTypeNames().entrySet()) {
String typeName = entry.getKey();
String className = entry.getValue();
ConfigurationEventTypeLegacy legacyDef = configSnapshot.getEventTypesLegacy().get(typeName);
if (legacyDef != null) {
classLegacyInfo.put(className, legacyDef);
}
}
eventAdapterService.setClassLegacyConfigs(classLegacyInfo);
eventAdapterService.setDefaultPropertyResolutionStyle(
configSnapshot.getEngineDefaults().getEventMeta().getClassPropertyResolutionStyle());
eventAdapterService.setDefaultAccessorStyle(
configSnapshot.getEngineDefaults().getEventMeta().getDefaultAccessorStyle());
for (String javaPackage : configSnapshot.getEventTypeAutoNamePackages()) {
eventAdapterService.addAutoNamePackage(javaPackage);
}
// Add from the configuration the Java event class names
Map<String, String> javaClassNames = configSnapshot.getEventTypeNames();
for (Map.Entry<String, String> entry : javaClassNames.entrySet()) {
// Add Java class
try {
String typeName = entry.getKey();
eventAdapterService.addBeanType(typeName, entry.getValue(), false, true, true, true);
} catch (EventAdapterException ex) {
throw new ConfigurationException("Error configuring engine: " + ex.getMessage(), ex);
}
}
// Add from the configuration the XML DOM names and type def
Map<String, ConfigurationEventTypeXMLDOM> xmlDOMNames = configSnapshot.getEventTypesXMLDOM();
for (Map.Entry<String, ConfigurationEventTypeXMLDOM> entry : xmlDOMNames.entrySet()) {
SchemaModel schemaModel = null;
if ((entry.getValue().getSchemaResource() != null)
|| (entry.getValue().getSchemaText() != null)) {
try {
schemaModel =
XSDSchemaMapper.loadAndMap(
entry.getValue().getSchemaResource(), entry.getValue().getSchemaText(), 2);
} catch (Exception ex) {
throw new ConfigurationException(ex.getMessage(), ex);
}
}
// Add XML DOM type
try {
eventAdapterService.addXMLDOMType(entry.getKey(), entry.getValue(), schemaModel, true);
} catch (EventAdapterException ex) {
throw new ConfigurationException("Error configuring engine: " + ex.getMessage(), ex);
}
}
// Add maps in dependency order such that supertypes are added before subtypes
Set<String> dependentMapOrder;
try {
Map<String, Set<String>> typesReferences =
toTypesReferences(configSnapshot.getMapTypeConfigurations());
dependentMapOrder = GraphUtil.getTopDownOrder(typesReferences);
} catch (GraphCircularDependencyException e) {
throw new ConfigurationException(
"Error configuring engine, dependency graph between map type names is circular: "
+ e.getMessage(),
e);
}
Map<String, Properties> mapNames = configSnapshot.getEventTypesMapEvents();
Map<String, Map<String, Object>> nestableMapNames =
configSnapshot.getEventTypesNestableMapEvents();
dependentMapOrder.addAll(mapNames.keySet());
dependentMapOrder.addAll(nestableMapNames.keySet());
try {
for (String mapName : dependentMapOrder) {
ConfigurationEventTypeMap mapConfig =
configSnapshot.getMapTypeConfigurations().get(mapName);
Properties propertiesUnnested = mapNames.get(mapName);
if (propertiesUnnested != null) {
Map<String, Object> propertyTypes = createPropertyTypes(propertiesUnnested);
Map<String, Object> propertyTypesCompiled =
EventTypeUtility.compileMapTypeProperties(propertyTypes, eventAdapterService);
eventAdapterService.addNestableMapType(
mapName, propertyTypesCompiled, mapConfig, true, true, true, false, false);
}
Map<String, Object> propertiesNestable = nestableMapNames.get(mapName);
if (propertiesNestable != null) {
Map<String, Object> propertiesNestableCompiled =
EventTypeUtility.compileMapTypeProperties(propertiesNestable, eventAdapterService);
eventAdapterService.addNestableMapType(
mapName, propertiesNestableCompiled, mapConfig, true, true, true, false, false);
}
}
} catch (EventAdapterException ex) {
throw new ConfigurationException("Error configuring engine: " + ex.getMessage(), ex);
}
// Add object-array in dependency order such that supertypes are added before subtypes
Set<String> dependentObjectArrayOrder;
try {
Map<String, Set<String>> typesReferences =
toTypesReferences(configSnapshot.getObjectArrayTypeConfigurations());
dependentObjectArrayOrder = GraphUtil.getTopDownOrder(typesReferences);
} catch (GraphCircularDependencyException e) {
throw new ConfigurationException(
"Error configuring engine, dependency graph between object array type names is circular: "
+ e.getMessage(),
e);
}
Map<String, Map<String, Object>> nestableObjectArrayNames =
configSnapshot.getEventTypesNestableObjectArrayEvents();
dependentObjectArrayOrder.addAll(nestableObjectArrayNames.keySet());
try {
for (String objectArrayName : dependentObjectArrayOrder) {
ConfigurationEventTypeObjectArray objectArrayConfig =
configSnapshot.getObjectArrayTypeConfigurations().get(objectArrayName);
Map<String, Object> propertyTypes = nestableObjectArrayNames.get(objectArrayName);
propertyTypes = resolveClassesForStringPropertyTypes(propertyTypes);
Map<String, Object> propertyTypesCompiled =
EventTypeUtility.compileMapTypeProperties(propertyTypes, eventAdapterService);
eventAdapterService.addNestableObjectArrayType(
objectArrayName,
propertyTypesCompiled,
objectArrayConfig,
true,
true,
true,
false,
false,
false,
null);
}
} catch (EventAdapterException ex) {
throw new ConfigurationException("Error configuring engine: " + ex.getMessage(), ex);
}
// Add plug-in event representations
Map<URI, ConfigurationPlugInEventRepresentation> plugInReps =
configSnapshot.getPlugInEventRepresentation();
for (Map.Entry<URI, ConfigurationPlugInEventRepresentation> entry : plugInReps.entrySet()) {
String className = entry.getValue().getEventRepresentationClassName();
Class eventRepClass;
try {
ClassLoader cl = Thread.currentThread().getContextClassLoader();
eventRepClass = Class.forName(className, true, cl);
} catch (ClassNotFoundException ex) {
throw new ConfigurationException(
"Failed to load plug-in event representation class '" + className + "'", ex);
}
Object pluginEventRepObj;
try {
pluginEventRepObj = eventRepClass.newInstance();
} catch (InstantiationException ex) {
throw new ConfigurationException(
"Failed to instantiate plug-in event representation class '"
+ className
+ "' via default constructor",
ex);
} catch (IllegalAccessException ex) {
throw new ConfigurationException(
"Illegal access to instantiate plug-in event representation class '"
+ className
+ "' via default constructor",
ex);
}
if (!(pluginEventRepObj instanceof PlugInEventRepresentation)) {
throw new ConfigurationException(
"Plug-in event representation class '"
+ className
+ "' does not implement the required interface "
+ PlugInEventRepresentation.class.getName());
}
URI eventRepURI = entry.getKey();
PlugInEventRepresentation pluginEventRep = (PlugInEventRepresentation) pluginEventRepObj;
Serializable initializer = entry.getValue().getInitializer();
PlugInEventRepresentationContext context =
new PlugInEventRepresentationContext(eventAdapterService, eventRepURI, initializer);
try {
pluginEventRep.init(context);
eventAdapterService.addEventRepresentation(eventRepURI, pluginEventRep);
} catch (Throwable t) {
throw new ConfigurationException(
"Plug-in event representation class '"
+ className
+ "' and URI '"
+ eventRepURI
+ "' did not initialize correctly : "
+ t.getMessage(),
t);
}
}
// Add plug-in event type names
Map<String, ConfigurationPlugInEventType> plugInNames = configSnapshot.getPlugInEventTypes();
for (Map.Entry<String, ConfigurationPlugInEventType> entry : plugInNames.entrySet()) {
String name = entry.getKey();
ConfigurationPlugInEventType config = entry.getValue();
eventAdapterService.addPlugInEventType(
name, config.getEventRepresentationResolutionURIs(), config.getInitializer());
}
}