org.broadleafcommerce.instrument.BroadleafInstrumentationSavingAgent Maven / Gradle / Ivy
/*
* Copyright 2008-2012 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 org.broadleafcommerce.instrument;
import java.lang.instrument.Instrumentation;
/**
* Based on org.springframework.instrument.InstrumentationSavingAgent from Spring 3.0.5 by Rod Johnson and Juergen Hoeller
*
* @author jfischer
*
*/
public class BroadleafInstrumentationSavingAgent {
private static volatile Instrumentation instrumentation;
/**
* Save the {@link Instrumentation} interface exposed by the JVM.
*/
public static void premain(String agentArgs, Instrumentation inst) {
System.out.println("Starting the Broadleaf instrumentation agent");
instrumentation = inst;
}
/**
* Return the {@link Instrumentation} interface exposed by the JVM.
* Note that this agent class will typically not be available in the classpath
* unless the agent is actually specified on JVM startup. If you intend to do
* conditional checking with respect to agent availability, consider using
* {@link org.broadleafcommerce.profile.extensibility.jpa.convert.BroadleafLoadTimeWeaver#getInstrumentation()}
* instead - which will work without the agent class in the classpath as well.
* @return the Instrumentation instance previously saved when
* the {@link #premain} method was called by the JVM; will be null
* if this class was not used as Java agent when this JVM was started.
* @see org.broadleafcommerce.profile.extensibility.jpa.convert.BroadleafLoadTimeWeaver#getInstrumentation()
*/
public static Instrumentation getInstrumentation() {
return instrumentation;
}
}