/*
* 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.context.provider;
import com.google.inject.Inject;
import com.google.inject.Provider;
import com.navercorp.pinpoint.bootstrap.config.ProfilerConfig;
import com.navercorp.pinpoint.profiler.ClassFileTransformerDispatcher;
import com.navercorp.pinpoint.profiler.instrument.ASMBytecodeDumpService;
import com.navercorp.pinpoint.profiler.instrument.BytecodeDumpTransformer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.lang.instrument.ClassFileTransformer;
/**
* @author Woonduk Kang(emeroad)
*/
public class ClassFileTransformerWrapProvider implements Provider<ClassFileTransformer> {
private final Logger logger = LoggerFactory.getLogger(this.getClass());
private final ProfilerConfig profilerConfig;
private final Provider<ClassFileTransformerDispatcher> classFileTransformerDispatcherProvider;
@Inject
public ClassFileTransformerWrapProvider(ProfilerConfig profilerConfig, Provider<ClassFileTransformerDispatcher> classFileTransformerDispatcherProvider) {
if (profilerConfig == null) {
throw new NullPointerException("profilerConfig must not be null");
}
if (classFileTransformerDispatcherProvider == null) {
throw new NullPointerException("classFileTransformerDispatcherProvider must not be null");
}
this.profilerConfig = profilerConfig;
this.classFileTransformerDispatcherProvider = classFileTransformerDispatcherProvider;
}
public ClassFileTransformer get() {
ClassFileTransformerDispatcher classFileTransformerDispatcher = classFileTransformerDispatcherProvider.get();
final boolean enableBytecodeDump = profilerConfig.readBoolean(ASMBytecodeDumpService.ENABLE_BYTECODE_DUMP, ASMBytecodeDumpService.ENABLE_BYTECODE_DUMP_DEFAULT_VALUE);
if (enableBytecodeDump) {
logger.info("wrapBytecodeDumpTransformer");
return BytecodeDumpTransformer.wrap(classFileTransformerDispatcher, profilerConfig);
}
return classFileTransformerDispatcher;
}
}