/* * Copyright 2016 ANI Technologies Pvt. Ltd. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.olacabs.fabric.compute.pipelined; import com.olacabs.fabric.compute.ProcessingContext; import com.olacabs.fabric.compute.processor.InitializationException; import com.olacabs.fabric.compute.processor.ProcessingException; import com.olacabs.fabric.compute.processor.ScheduledProcessor; import com.olacabs.fabric.model.common.ComponentMetadata; import com.olacabs.fabric.model.event.Event; import com.olacabs.fabric.model.event.EventSet; import java.util.Collections; import java.util.List; import java.util.Properties; /** * TODO doc. */ public class SummingProcessor extends ScheduledProcessor { private long count = 0L; @Override protected void consume(ProcessingContext context, EventSet eventSet) throws ProcessingException { count += eventSet.getEvents().size(); } @Override public void initialize(String instanceId, Properties globalProperties, Properties initializationProperties, ComponentMetadata componentMetadata) throws InitializationException { } @Override public List<Event> timeTriggerHandler(ProcessingContext context) throws ProcessingException { long currentCount = count; count = 0L; return Collections.singletonList(Event.builder().data(Collections.singletonMap("count", currentCount)).build()); } @Override public void destroy() { } }