/* * * 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.qpid.junit.extensions; /** * Throttle is an interface that supplies a {@link #throttle} method, that can only be called at the rate specified * in a call to the {@link #setRate} method. This can be used to restict processing to run at a certain number * of operations per second. * *
Throttle also supplies a method to check the throttle rate, without waiting. This could be used to update a user * interface every time an event occurs, but only up to a maximum rate. For example, as elements are added to a list, * a count of elements is updated for the user to see, but only up to a maximum rate of ten updates a second, as updating * faster than that slows the processing of element-by-element additions to the list unnecessarily. * *Responsibilities * |
---|
Accept throttling rate in operations per second. * |
Inject short pauses to fill-out processing cycles to a specified rate. * |
Check against a throttle speed without waiting. * |