| /* |
| * Copyright 2003-2007 the original author or authors. |
| * |
| * Licensed 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 groovy.lang; |
| |
| import java.util.*; |
| |
| /** |
| * Interceptor that registers the timestamp of each method call |
| * before and after invocation. |
| */ |
| public class BenchmarkInterceptor implements Interceptor { |
| |
| protected Map calls = new HashMap(); // keys to list of invocation times and before and after |
| |
| |
| public Map getCalls() { |
| return calls; |
| } |
| public void reset() { |
| calls = new HashMap(); |
| } |
| |
| public Object beforeInvoke(Object object, String methodName, Object[] arguments) { |
| if (!calls.containsKey(methodName)) calls.put(methodName, new LinkedList()); |
| ((List) calls.get(methodName)).add(new Long(System.currentTimeMillis())); |
| |
| return null; |
| } |
| |
| public Object afterInvoke(Object object, String methodName, Object[] arguments, Object result) { |
| ((List) calls.get(methodName)).add(new Long(System.currentTimeMillis())); |
| return result; |
| } |
| |
| public boolean doInvoke() { |
| return true; |
| } |
| |
| /** |
| * @return a list of lines, each item is [methodname, numberOfCalls, accumulatedTime] |
| */ |
| public List statistic() { |
| List result = new LinkedList(); |
| for (Iterator iter = calls.keySet().iterator(); iter.hasNext();) { |
| Object[] line = new Object[3]; |
| result.add(line); |
| line[0] = iter.next(); |
| List times = (List) calls.get(line[0]); |
| line[1] = new Integer(times.size() / 2); |
| int accTime = 0; |
| for (Iterator it = times.iterator(); it.hasNext();) { |
| Long start = (Long) it.next(); |
| Long end = (Long) it.next(); |
| accTime += end.longValue() - start.longValue(); |
| } |
| line[2] = new Long(accTime); |
| } |
| return result; |
| } |
| } |