| /** |
| * 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.cxf.throttling; |
| |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.apache.cxf.message.Message; |
| import org.apache.cxf.phase.Phase; |
| |
| /** |
| * Suspends or aborts the requests if the threshold has been reached |
| */ |
| public class SimpleThrottlingManager extends ThrottleResponse implements ThrottlingManager { |
| private static final String THROTTLED_KEY = "THROTTLED"; |
| |
| private int threshold; |
| private ThrottlingCounter counter = new ThrottlingCounter(); |
| |
| @Override |
| public List<String> getDecisionPhases() { |
| return Collections.singletonList(Phase.PRE_STREAM); |
| } |
| |
| @Override |
| public ThrottleResponse getThrottleResponse(String phase, Message m) { |
| if (m.containsKey(THROTTLED_KEY)) { |
| return null; |
| } |
| m.getExchange().put(ThrottlingCounter.class, counter); |
| if (counter.incrementAndGet() >= threshold) { |
| m.put(THROTTLED_KEY, true); |
| return this; |
| } |
| return null; |
| } |
| |
| public int getThreshold() { |
| return threshold; |
| } |
| |
| public void setThreshold(int threshold) { |
| this.threshold = threshold; |
| } |
| |
| } |