| /* |
| * 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.skywalking.apm.agent; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import net.bytebuddy.description.type.TypeDescription; |
| import net.bytebuddy.dynamic.DynamicType; |
| import org.apache.skywalking.apm.agent.core.boot.AgentPackageNotFoundException; |
| import org.apache.skywalking.apm.agent.core.boot.AgentPackagePath; |
| import org.apache.skywalking.apm.agent.core.conf.Config; |
| import org.apache.skywalking.apm.agent.core.logging.api.ILog; |
| import org.apache.skywalking.apm.agent.core.logging.api.LogManager; |
| |
| /** |
| * @author wu-sheng |
| */ |
| public enum InstrumentDebuggingClass { |
| INSTANCE; |
| |
| private static final ILog logger = LogManager.getLogger(InstrumentDebuggingClass.class); |
| private File debuggingClassesRootPath; |
| |
| public void log(TypeDescription typeDescription, DynamicType dynamicType) { |
| if (!Config.Agent.IS_OPEN_DEBUGGING_CLASS) { |
| return; |
| } |
| |
| /** |
| * try to do I/O things in synchronized way, to avoid unexpected situations. |
| */ |
| synchronized (INSTANCE) { |
| try { |
| if (debuggingClassesRootPath == null) { |
| try { |
| debuggingClassesRootPath = new File(AgentPackagePath.getPath(), "/debugging"); |
| if (!debuggingClassesRootPath.exists()) { |
| debuggingClassesRootPath.mkdir(); |
| } |
| } catch (AgentPackageNotFoundException e) { |
| logger.error(e, "Can't find the root path for creating /debugging folder."); |
| } |
| } |
| |
| try { |
| dynamicType.saveIn(debuggingClassesRootPath); |
| } catch (IOException e) { |
| logger.error(e, "Can't save class {} to file." + typeDescription.getActualName()); |
| } |
| } catch (Throwable t) { |
| logger.error(t, "Save debugging classes fail."); |
| } |
| } |
| } |
| } |