/*
* Copyright 2017 NAVER Corp.
*
* 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 com.navercorp.pinpoint.profiler.instrument;
import com.navercorp.pinpoint.bootstrap.instrument.InstrumentClass;
import com.navercorp.pinpoint.bootstrap.instrument.InstrumentContext;
import com.navercorp.pinpoint.bootstrap.instrument.transformer.TransformCallback;
import com.navercorp.pinpoint.bootstrap.interceptor.scope.InterceptorScope;
import java.io.InputStream;
/**
* @author Woonduk Kang(emeroad)
* @author jaehong.kim
*/
public class GuardInstrumentContext implements InstrumentContext {
private final InstrumentContext instrumentContext;
private boolean closed = false;
public GuardInstrumentContext(InstrumentContext instrumentContext) {
if (instrumentContext == null) {
throw new NullPointerException("instrumentContext must not be null");
}
this.instrumentContext = instrumentContext;
}
@Override
public InstrumentClass getInstrumentClass(ClassLoader classLoader, String className, byte[] classfileBuffer) {
checkOpen();
return instrumentContext.getInstrumentClass(classLoader, className, classfileBuffer);
}
@Override
public boolean exist(ClassLoader classLoader, String className) {
checkOpen();
return instrumentContext.exist(classLoader, className);
}
@Override
public InterceptorScope getInterceptorScope(String name) {
checkOpen();
return instrumentContext.getInterceptorScope(name);
}
@Override
public <T> Class<? extends T> injectClass(ClassLoader targetClassLoader, String className) {
checkOpen();
return instrumentContext.injectClass(targetClassLoader, className);
}
@Override
public InputStream getResourceAsStream(ClassLoader targetClassLoader, String classPath) {
checkOpen();
return instrumentContext.getResourceAsStream(targetClassLoader, classPath);
}
@Override
public void addClassFileTransformer(ClassLoader classLoader, String targetClassName, TransformCallback transformCallback) {
checkOpen();
instrumentContext.addClassFileTransformer(classLoader, targetClassName, transformCallback);
}
@Override
public void addClassFileTransformer(String targetClassName, TransformCallback transformCallback) {
checkOpen();
instrumentContext.addClassFileTransformer(targetClassName, transformCallback);
}
@Override
public void retransform(Class<?> target, TransformCallback transformCallback) {
checkOpen();
instrumentContext.retransform(target, transformCallback);
}
public void close() {
this.closed = true;
}
private void checkOpen() {
if (closed) {
throw new IllegalStateException("instrumentContext already closed");
}
}
}