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* 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
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package org.ofbiz.base.config;
import java.io.File;
import java.io.IOException;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.util.Collection;
import java.util.Collections;
import org.objectweb.asm.ClassReader;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.ClassVisitor;
import net.sourceforge.cobertura.coveragedata.CoverageDataFileHandler;
import net.sourceforge.cobertura.coveragedata.ProjectData;
import org.ofbiz.base.start.Instrumenter;
public final class CoberturaInstrumenter implements Instrumenter {
private static final Constructor INSTRUMENTER_CONSTRUCTOR;
private static final Method IS_INSTRUMENTED_METHOD;
static {
try {
Class<?> clz = CoberturaInstrumenter.class.getClassLoader().loadClass("net.sourceforge.cobertura.instrument.ClassInstrumenter");
INSTRUMENTER_CONSTRUCTOR = clz.getConstructor(ProjectData.class, ClassVisitor.class, Collection.class, Collection.class);
INSTRUMENTER_CONSTRUCTOR.setAccessible(true);
IS_INSTRUMENTED_METHOD = clz.getDeclaredMethod("isInstrumented");
IS_INSTRUMENTED_METHOD.setAccessible(true);
} catch (Throwable t) {
throw (InternalError) new InternalError(t.getMessage()).initCause(t);
}
}
protected File dataFile;
protected ProjectData projectData;
protected boolean forInstrumenting;
public File getDefaultFile() throws IOException {
return CoverageDataFileHandler.getDefaultDataFile();
}
public void open(File dataFile, boolean forInstrumenting) throws IOException {
System.setProperty("net.sourceforge.cobertura.datafile", dataFile.toString());
this.forInstrumenting = forInstrumenting;
this.dataFile = dataFile;
if (forInstrumenting) {
if (dataFile.exists()) {
projectData = CoverageDataFileHandler.loadCoverageData(dataFile);
} else {
projectData = new ProjectData();
}
}
}
public void close() throws IOException {
if (forInstrumenting) {
CoverageDataFileHandler.saveCoverageData(projectData, dataFile);
}
}
public byte[] instrumentClass(byte[] bytes) throws IOException {
ClassReader cr = new ClassReader(bytes);
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS/* | ClassWriter.COMPUTE_FRAMES*/);
try {
ClassVisitor ci = (ClassVisitor) INSTRUMENTER_CONSTRUCTOR.newInstance(projectData != null ? projectData : ProjectData.getGlobalProjectData(), cw, Collections.EMPTY_LIST, Collections.EMPTY_LIST);
cr.accept(ci, 0);
if (((Boolean) IS_INSTRUMENTED_METHOD.invoke(ci)).booleanValue()) return cw.toByteArray();
} catch (Throwable t) {
throw (IOException) new IOException(t.getMessage()).initCause(t);
}
return bytes;
}
}