public EPStatement create(
EPStatementObjectModel sodaStatement,
String statementName,
Object userObject,
String statementId)
throws EPException {
// Specifies the statement
StatementSpecRaw statementSpec = mapSODAToRaw(sodaStatement);
String eplStatement = sodaStatement.toEPL();
EPStatement statement =
services
.getStatementLifecycleSvc()
.createAndStart(
statementSpec,
eplStatement,
false,
statementName,
userObject,
null,
statementId,
sodaStatement);
log.debug(".createEPLStmt Statement created and started");
return statement;
}
/**
* Constructor - takes the services context as argument.
*
* @param adminContext - administrative context
*/
public EPAdministratorImpl(EPAdministratorContext adminContext) {
this.services = adminContext.getServices();
this.configurationOperations = adminContext.getConfigurationOperations();
this.defaultStreamSelector = adminContext.getDefaultStreamSelector();
ConfigurationEngineDefaults.AlternativeContext alternativeContext =
adminContext.getServices().getConfigSnapshot().getEngineDefaults().getAlternativeContext();
StatementIdGenerator statementIdGenerator = null;
if (alternativeContext != null && alternativeContext.getStatementIdGeneratorFactory() != null) {
StatementIdGeneratorFactory statementIdGeneratorFactory =
(StatementIdGeneratorFactory)
JavaClassHelper.instantiate(
StatementIdGeneratorFactory.class,
alternativeContext.getStatementIdGeneratorFactory());
statementIdGenerator =
statementIdGeneratorFactory.create(
new StatementIdGeneratorFactoryContext(services.getEngineURI()));
}
this.deploymentAdminService =
new EPDeploymentAdminImpl(
this,
adminContext.getServices().getDeploymentStateService(),
adminContext.getServices().getStatementEventTypeRefService(),
adminContext.getServices().getEventAdapterService(),
adminContext.getServices().getStatementIsolationService(),
statementIdGenerator,
adminContext.getServices().getFilterService());
}
public StatementSpecRaw mapSODAToRaw(EPStatementObjectModel model) {
return StatementSpecMapper.map(
model,
services.getEngineImportService(),
services.getVariableService(),
services.getConfigSnapshot(),
services.getSchedulingService(),
services.getEngineURI(),
services.getPatternNodeFactory(),
services.getNamedWindowService(),
services.getContextManagementService(),
services.getExprDeclaredService());
}
private EPStatement createPatternStmt(
String expression, String statementName, Object userObject, String statementId)
throws EPException {
StatementSpecRaw rawPattern =
EPAdministratorHelper.compilePattern(
expression, expression, true, services, SelectClauseStreamSelectorEnum.ISTREAM_ONLY);
return services
.getStatementLifecycleSvc()
.createAndStart(
rawPattern, expression, true, statementName, userObject, null, statementId, null);
}
public EPStatement create(
EPPreparedStatement prepared, String statementName, Object userObject, String statementId)
throws EPException {
EPPreparedStatementImpl impl = (EPPreparedStatementImpl) prepared;
StatementSpecRaw statementSpec = mapSODAToRaw(impl.getModel());
String eplStatement = impl.getModel().toEPL();
return services
.getStatementLifecycleSvc()
.createAndStart(
statementSpec,
eplStatement,
false,
statementName,
userObject,
null,
statementId,
impl.getModel());
}
private EPStatement createEPLStmt(
String eplStatement, String statementName, Object userObject, String statementId)
throws EPException {
StatementSpecRaw statementSpec =
EPAdministratorHelper.compileEPL(
eplStatement, eplStatement, true, statementName, services, defaultStreamSelector);
EPStatement statement =
services
.getStatementLifecycleSvc()
.createAndStart(
statementSpec,
eplStatement,
false,
statementName,
userObject,
null,
statementId,
null);
log.debug(".createEPLStmt Statement created and started");
return statement;
}
public void destroyAllStatements() throws EPException {
services.getStatementLifecycleSvc().destroyAllStatements();
}
public void stopAllStatements() throws EPException {
services.getStatementLifecycleSvc().stopAllStatements();
}
public String[] getStatementNames() {
return services.getStatementLifecycleSvc().getStatementNames();
}
public String getStatementNameForId(String statementId) {
return services.getStatementLifecycleSvc().getStatementNameById(statementId);
}
public EPStatement getStatement(String name) {
return services.getStatementLifecycleSvc().getStatementByName(name);
}