| /* |
| * 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 org.apache.brooklyn.api.catalog.Catalog; |
| import org.apache.brooklyn.api.entity.ImplementedBy; |
| import org.apache.brooklyn.api.sensor.AttributeSensor; |
| import org.apache.brooklyn.core.config.render.RendererHints; |
| import org.apache.brooklyn.core.sensor.BasicAttributeSensor; |
| import org.apache.brooklyn.entity.group.DynamicCluster; |
| import org.apache.brooklyn.util.time.Duration; |
| |
| /** |
| * DynamicWebAppClusters provide cluster-wide aggregates of entity attributes. Currently totals and averages: |
| * <ul> |
| * <li>Entity request counts</li> |
| * <li>Entity error counts</li> |
| * <li>Requests per second</li> |
| * <li>Entity processing time</li> |
| * </ul> |
| */ |
| @Catalog(name="Dynamic Web-app Cluster", description="A cluster of web-apps, which can be dynamically re-sized; this does not include a load-balancer") |
| @ImplementedBy(DynamicWebAppClusterImpl.class) |
| public interface DynamicWebAppCluster extends DynamicCluster, WebAppService, JavaWebAppService, |
| JavaWebAppService.CanDeployAndUndeploy, JavaWebAppService.CanRedeployAll { |
| |
| public static final AttributeSensor<Double> REQUEST_COUNT_PER_NODE = new BasicAttributeSensor<Double>( |
| Double.class, "webapp.reqs.total.perNode", "Cluster entity request average"); |
| |
| public static final AttributeSensor<Integer> ERROR_COUNT_PER_NODE = new BasicAttributeSensor<Integer>( |
| Integer.class, "webapp.reqs.errors.perNode", "Cluster entity request error average"); |
| |
| public static final AttributeSensor<Double> REQUESTS_PER_SECOND_LAST_PER_NODE = new BasicAttributeSensor<Double>( |
| Double.class, "webapp.reqs.perSec.last.perNode", "Reqs/sec (last datapoint) averaged over all nodes"); |
| |
| public static final AttributeSensor<Double> REQUESTS_PER_SECOND_IN_WINDOW_PER_NODE = new BasicAttributeSensor<Double>( |
| Double.class, "webapp.reqs.perSec.windowed.perNode", "Reqs/sec (over time window) averaged over all nodes"); |
| |
| public static final AttributeSensor<Integer> TOTAL_PROCESSING_TIME_PER_NODE = ApplyDisplayHints.TOTAL_PROCESSING_TIME_PER_NODE; |
| |
| public static final AttributeSensor<Double> PROCESSING_TIME_FRACTION_IN_WINDOW_PER_NODE = new BasicAttributeSensor<Double>( |
| Double.class, "webapp.reqs.processingTime.fraction.windowed.perNode", "Fraction of time spent processing " + |
| "reported by webserver (percentage, over time window) averaged over all nodes"); |
| |
| class ApplyDisplayHints { |
| public static final AttributeSensor<Integer> TOTAL_PROCESSING_TIME_PER_NODE = new BasicAttributeSensor<Integer>( |
| Integer.class, "webapp.reqs.processingTime.perNode", "Total processing time per node (millis)"); |
| static { |
| RendererHints.register(TOTAL_PROCESSING_TIME_PER_NODE, RendererHints.displayValue(Duration.millisToStringRounded())); |
| } |
| } |
| |
| } |