| /* |
| * 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.sensor.AttributeSensor; |
| import org.apache.brooklyn.core.config.render.RendererHints; |
| import org.apache.brooklyn.core.sensor.BasicAttributeSensor; |
| import org.apache.brooklyn.core.sensor.Sensors; |
| import org.apache.brooklyn.util.math.MathFunctions; |
| import org.apache.brooklyn.util.text.ByteSizeStrings; |
| import org.apache.brooklyn.util.time.Duration; |
| |
| public interface WebAppServiceMetrics { |
| |
| public static final org.apache.brooklyn.core.sensor.BasicAttributeSensor<Integer> ERROR_COUNT = |
| new org.apache.brooklyn.core.sensor.BasicAttributeSensor<Integer>(Integer.class, "webapp.reqs.errors", "Request errors"); |
| public static final AttributeSensor<Integer> TOTAL_PROCESSING_TIME = Sensors.newIntegerSensor( |
| "webapp.reqs.processingTime.total", "Total processing time, reported by webserver (millis)"); |
| public static final AttributeSensor<Integer> MAX_PROCESSING_TIME = |
| Sensors.newIntegerSensor("webapp.reqs.processingTime.max", "Max processing time for any single request, reported by webserver (millis)"); |
| |
| /** the fraction of time represented by the most recent delta to TOTAL_PROCESSING_TIME, ie 0.4 if 800 millis were accumulated in last 2s; |
| * easily configured with {@link WebAppServiceMethods#connectWebAppServerPolicies(org.apache.brooklyn.api.entity.Entity, org.apache.brooklyn.util.time.Duration)} */ |
| public static final AttributeSensor<Double> PROCESSING_TIME_FRACTION_LAST = |
| Sensors.newDoubleSensor("webapp.reqs.processingTime.fraction.last", "Fraction of time spent processing, reported by webserver (percentage, last datapoint)"); |
| public static final AttributeSensor<Double> PROCESSING_TIME_FRACTION_IN_WINDOW = |
| Sensors.newDoubleSensor("webapp.reqs.processingTime.fraction.windowed", "Fraction of time spent processing, reported by webserver (percentage, over time window)"); |
| |
| public static final AttributeSensor<Long> BYTES_RECEIVED = |
| new BasicAttributeSensor<Long>(Long.class, "webapp.reqs.bytes.received", "Total bytes received by the webserver"); |
| public static final AttributeSensor<Long> BYTES_SENT = |
| new BasicAttributeSensor<Long>(Long.class, "webapp.reqs.bytes.sent", "Total bytes sent by the webserver"); |
| |
| /** req/second computed from the delta of the last request count and an associated timestamp */ |
| public static final AttributeSensor<Double> REQUESTS_PER_SECOND_LAST = |
| Sensors.newDoubleSensor("webapp.reqs.perSec.last", "Reqs/sec (last datapoint)"); |
| |
| /** rolled-up req/second for a window, |
| * easily configured with {@link WebAppServiceMethods#connectWebAppServerPolicies(org.apache.brooklyn.api.entity.Entity, org.apache.brooklyn.util.time.Duration)} */ |
| public static final AttributeSensor<Double> REQUESTS_PER_SECOND_IN_WINDOW = |
| Sensors.newDoubleSensor("webapp.reqs.perSec.windowed", "Reqs/sec (over time window)"); |
| |
| public static final AttributeSensor<Integer> REQUEST_COUNT = Initializer.REQUEST_COUNT; |
| |
| // this class is added because the above need static initialization which unfortunately can't be added to an interface. |
| // (but should only be referenced after the other fields have been set) |
| static class Initializer { |
| public static final AttributeSensor<Integer> REQUEST_COUNT = |
| Sensors.newIntegerSensor("webapp.reqs.total", "Request count"); |
| |
| static { |
| RendererHints.register(WebAppServiceConstants.TOTAL_PROCESSING_TIME, RendererHints.displayValue(Duration.millisToStringRounded())); |
| RendererHints.register(WebAppServiceConstants.MAX_PROCESSING_TIME, RendererHints.displayValue(Duration.millisToStringRounded())); |
| RendererHints.register(WebAppServiceConstants.BYTES_RECEIVED, RendererHints.displayValue(ByteSizeStrings.metric())); |
| RendererHints.register(WebAppServiceConstants.BYTES_SENT, RendererHints.displayValue(ByteSizeStrings.metric())); |
| RendererHints.register(WebAppServiceConstants.PROCESSING_TIME_FRACTION_LAST, RendererHints.displayValue(MathFunctions.percent(2))); |
| RendererHints.register(WebAppServiceConstants.PROCESSING_TIME_FRACTION_IN_WINDOW, RendererHints.displayValue(MathFunctions.percent(2))); |
| } |
| } |
| |
| } |