Package com.espertech.esper.core.context.util

Examples of com.espertech.esper.core.context.util.AgentInstanceContext

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        if (statementSpec.getOptionalContextName() != null) {
            throw new ExprValidationException("A create-context statement cannot itself be associated to a context, please declare a nested context instead");
        }
        final CreateContextDesc context = statementSpec.getContextDesc();
        final AgentInstanceContext agentInstanceContext = getDefaultAgentInstanceContext(statementContext);

        // compile filter specs, if any
        Set<String> eventTypesReferenced = new HashSet<String>();
        validateContextDetail(services, statementContext, eventTypesReferenced, context.getContextDetail());
        services.getStatementEventTypeRefService().addReferences(statementContext.getStatementName(), CollectionUtil.toArray(eventTypesReferenced));
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        int numStreams = statementSpec.getStreamSpecs().length;
        EventType[] typesPerStream = new EventType[numStreams];
        String[] namesPerStream = new String[numStreams];
        processors = new NamedWindowProcessor[numStreams];
        agentInstanceContext = new AgentInstanceContext(statementContext, null, -1, null, null, statementContext.getDefaultAgentInstanceScriptContext());

        // resolve types and named window processors
        for (int i = 0; i < numStreams; i++)
        {
            final StreamSpecCompiled streamSpec = statementSpec.getStreamSpecs()[i];
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                }
            };
        }
        // Without context - start here
        else {
            AgentInstanceContext agentInstanceContext = getDefaultAgentInstanceContext(statementContext);
            final StatementAgentInstanceFactoryUpdateResult resultOfStart = contextFactory.newContext(agentInstanceContext, isRecoveringResilient);
            finalViewable = resultOfStart.getFinalView();
            stopStatementMethod = new EPStatementStopMethod() {
                public void stop() {
                    resultOfStart.getStopCallback().stop();
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    }

    public EPStatementStartResult startInternal(final EPServicesContext services, final StatementContext statementContext, boolean isNewStatement, boolean isRecoveringStatement, boolean isRecoveringResilient) throws ExprValidationException, ViewProcessingException {

        final String contextName = statementSpec.getOptionalContextName();
        AgentInstanceContext defaultAgentInstanceContext = getDefaultAgentInstanceContext(statementContext);
        EPStatementStartMethodSelectDesc selectDesc = EPStatementStartMethodSelectUtil.prepare(statementSpec, services, statementContext, isRecoveringResilient, defaultAgentInstanceContext, isQueryPlanLogging(services), null, null, null);

        // Determine context
        EPStatementStopMethod stopStatementMethod;
        EPStatementDestroyMethod destroyStatementMethod;
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        // Compile and prepare execution
        //
        final StatementContext statementContext = context.getStatementContext();
        EPServicesContext servicesContext = context.getServicesContext();
        AgentInstanceContext agentInstanceContext = context.getAgentInstanceContext();

        // validate
        if (select.getInsertIntoDesc() != null) {
            throw new ExprValidationException("Insert-into clause is not supported");
        }
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        return new EPStatementAgentInstanceHandle(statementContext.getEpStatementHandle(), statementContext.getDefaultAgentInstanceLock(), -1, new StatementAgentInstanceFilterVersion());
    }

    protected AgentInstanceContext getDefaultAgentInstanceContext(StatementContext statementContext) {
        EPStatementAgentInstanceHandle handle = getDefaultAgentInstanceHandle(statementContext);
        return new AgentInstanceContext(statementContext, handle, -1, null, null, statementContext.getDefaultAgentInstanceScriptContext());
    }
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                    }
                };
            }
            // Without context - start here
            else {
                AgentInstanceContext agentInstanceContext = getDefaultAgentInstanceContext(statementContext);
                final StatementAgentInstanceFactoryCreateWindowResult resultOfStart;
                try {
                    resultOfStart = contextFactory.newContext(agentInstanceContext, false);
                }
                catch (RuntimeException ex) {
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        // Create result set processor, use wildcard selection
        statementSpec.getSelectClauseSpec().setSelectExprList(new SelectClauseElementWildcard());
        statementSpec.setSelectStreamDirEnum(SelectClauseStreamSelectorEnum.RSTREAM_ISTREAM_BOTH);
        StreamTypeService typeService = new StreamTypeServiceImpl(new EventType[] {createView.getEventType()}, new String[] {"create_variable"}, new boolean[] {true}, services.getEngineURI(), false);
        AgentInstanceContext agentInstanceContext = getDefaultAgentInstanceContext(statementContext);
        ResultSetProcessorFactoryDesc resultSetProcessorPrototype = ResultSetProcessorFactoryFactory.getProcessorPrototype(
                statementSpec, statementContext, typeService, null, new boolean[0], true, ContextPropertyRegistryImpl.EMPTY_REGISTRY, null);
        ResultSetProcessor resultSetProcessor = EPStatementStartMethodHelperAssignExpr.getAssignResultSetProcessor(agentInstanceContext, resultSetProcessorPrototype);

        // Attach output view
        OutputProcessViewFactory outputViewFactory = OutputProcessViewFactoryFactory.make(statementSpec, services.getInternalEventRouter(), agentInstanceContext.getStatementContext(), resultSetProcessor.getResultEventType(), null);
        OutputProcessViewBase outputView = outputViewFactory.makeView(resultSetProcessor, agentInstanceContext);
        createView.addView(outputView);

        services.getStatementVariableRefService().addReferences(statementContext.getStatementName(), Collections.singleton(createDesc.getVariableName()));
        EPStatementDestroyMethod destroyMethod = new EPStatementDestroyMethod() {
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        super(statementSpec);
    }

    public EPStatementStartResult startInternal(final EPServicesContext services, StatementContext statementContext, boolean isNewStatement, boolean isRecoveringStatement, boolean isRecoveringResilient) throws ExprValidationException, ViewProcessingException {
        final CreateDataFlowDesc createGraphDesc = statementSpec.getCreateGraphDesc();
        final AgentInstanceContext agentInstanceContext = getDefaultAgentInstanceContext(statementContext);

        // define output event type
        String typeName = "EventType_Graph_" + createGraphDesc.getGraphName();
        EventType resultType = services.getEventAdapterService().createAnonymousMapType(typeName, Collections.<String, Object>emptyMap());
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    }

    public EventBean[] execute(NamedWindowProcessorInstance instance) {
        EventBean event = insertHelper.process(new EventBean[0], true, true, exprEvaluatorContext);
        EventBean[] inserted = new EventBean[] {event};
        AgentInstanceContext ctx = instance.getTailViewInstance().getAgentInstanceContext();
        StatementAgentInstanceLock ailock = ctx.getAgentInstanceLock();
        ailock.acquireWriteLock(null);
        try {
            instance.getRootViewInstance().update(inserted, null);
        }
        catch (EPException ex) {
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Related Classes of com.espertech.esper.core.context.util.AgentInstanceContext

  • com.espertech.esper.core.service.ExpressionResultCacheServiceAgentInstance
  • com.espertech.esper.core.start.EPPreparedExecuteMethod
  • com.espertech.esper.core.start.EPPreparedExecuteMethodQuery
  • com.espertech.esper.core.start.EPPreparedExecuteSingleStreamExecInsert
  • com.espertech.esper.core.start.EPStatementStartMethodBase
  • com.espertech.esper.core.start.EPStatementStartMethodCreateContext
  • com.espertech.esper.core.start.EPStatementStartMethodCreateGraph
  • com.espertech.esper.core.start.EPStatementStartMethodCreateVariable
  • com.espertech.esper.core.start.EPStatementStartMethodCreateWindow
  • com.espertech.esper.core.start.EPStatementStartMethodOnTrigger
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