| /* |
| * Copyright 2000-2012 JetBrains s.r.o. |
| * |
| * 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 org.jetbrains.jps.cmdline; |
| |
| import java.lang.reflect.Method; |
| |
| /** |
| * @author Eugene Zhuravlev |
| * Date: 12/6/12 |
| */ |
| class ProfilingHelper { |
| |
| private final Class<?> myControllerClass; |
| private final Object myController; |
| |
| ProfilingHelper() throws Exception { |
| myControllerClass = Class.forName("com.yourkit.api.Controller"); |
| myController = myControllerClass.newInstance(); |
| } |
| |
| public void startProfiling() { |
| try { |
| final Method startMethod = myControllerClass.getDeclaredMethod("startCPUProfiling", long.class, String.class); |
| if (startMethod != null) { |
| startMethod.invoke(myController, 4L/*ProfilingModes.CPU_SAMPLING*/, null); |
| } |
| else { |
| System.err.println("Cannot find method 'startCPUProfiling' in class " + myControllerClass.getName()); |
| } |
| } |
| catch (Throwable e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| public void stopProfiling() { |
| try { |
| final Method captureMethod = myControllerClass.getDeclaredMethod("captureSnapshot", long.class); |
| if (captureMethod != null) { |
| final String path = (String)captureMethod.invoke(myController, 0L/*ProfilingModes.SNAPSHOT_WITHOUT_HEAP*/); |
| System.err.println("CPU Snapshot captured: " + path); |
| final Method stopMethod = myControllerClass.getDeclaredMethod("stopCPUProfiling"); |
| if (stopMethod != null) { |
| stopMethod.invoke(myController); |
| } |
| else { |
| System.err.println("Cannot find method 'stopCPUProfiling' in class " + myControllerClass.getName()); |
| } |
| } |
| else { |
| System.err.println("Cannot find method 'captureSnapshot' in class " + myControllerClass.getName()); |
| } |
| } |
| catch (Throwable e) { |
| e.printStackTrace(); |
| } |
| } |
| } |