| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.brooklyn.entity.webapp; |
| |
| import java.util.List; |
| |
| import javax.annotation.Nullable; |
| |
| import org.apache.brooklyn.api.sensor.AttributeSensor; |
| import org.apache.brooklyn.enricher.stock.Enrichers; |
| import org.apache.brooklyn.entity.group.DynamicFabricImpl; |
| |
| import com.google.common.base.Function; |
| import com.google.common.collect.ImmutableList; |
| |
| public class DynamicWebAppFabricImpl extends DynamicFabricImpl implements DynamicWebAppFabric { |
| |
| @Override |
| public void onManagementBecomingMaster() { |
| // Enricher attribute setup. A way of automatically discovering these (but avoiding |
| // averaging things like HTTP port and response codes) would be neat. |
| List<? extends List<? extends AttributeSensor<? extends Number>>> summingEnricherSetup = ImmutableList.of( |
| ImmutableList.of(REQUEST_COUNT, REQUEST_COUNT), |
| ImmutableList.of(ERROR_COUNT, ERROR_COUNT), |
| ImmutableList.of(REQUESTS_PER_SECOND_LAST, REQUESTS_PER_SECOND_LAST), |
| ImmutableList.of(REQUESTS_PER_SECOND_IN_WINDOW, REQUESTS_PER_SECOND_IN_WINDOW), |
| ImmutableList.of(TOTAL_PROCESSING_TIME, TOTAL_PROCESSING_TIME) |
| ); |
| |
| List<? extends List<? extends AttributeSensor<? extends Number>>> averagingEnricherSetup = ImmutableList.of( |
| ImmutableList.of(REQUEST_COUNT, REQUEST_COUNT_PER_NODE), |
| ImmutableList.of(ERROR_COUNT, ERROR_COUNT_PER_NODE), |
| ImmutableList.of(REQUESTS_PER_SECOND_LAST, REQUESTS_PER_SECOND_LAST_PER_NODE), |
| ImmutableList.of(REQUESTS_PER_SECOND_IN_WINDOW, REQUESTS_PER_SECOND_IN_WINDOW_PER_NODE), |
| ImmutableList.of(TOTAL_PROCESSING_TIME, TOTAL_PROCESSING_TIME_PER_NODE) |
| ); |
| |
| for (List<? extends AttributeSensor<? extends Number>> es : summingEnricherSetup) { |
| AttributeSensor<? extends Number> t = es.get(0); |
| AttributeSensor<? extends Number> total = es.get(1); |
| enrichers().add(Enrichers.builder() |
| .aggregating(t) |
| .publishing(total) |
| .fromMembers() |
| .computingSum() |
| .build()); |
| } |
| |
| for (List<? extends AttributeSensor<? extends Number>> es : averagingEnricherSetup) { |
| @SuppressWarnings("unchecked") |
| AttributeSensor<Number> t = (AttributeSensor<Number>) es.get(0); |
| @SuppressWarnings("unchecked") |
| AttributeSensor<Double> average = (AttributeSensor<Double>) es.get(1); |
| |
| // TODO This needs to respond to changes in FABRIC_SIZE as well, to recalculate |
| enrichers().add(Enrichers.builder() |
| .transforming(t) |
| .publishing(average) |
| .computing(new Function<Number, Double>() { |
| @Override public Double apply(@Nullable Number input) { |
| Integer size = getAttribute(DynamicWebAppFabric.FABRIC_SIZE); |
| return (size != null && input != null) ? (input.doubleValue() / size) : null; |
| }}) |
| .build()); |
| } |
| } |
| } |