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/*******************************************************************************
* Copyright (c) Copyright (c) Copyright (c) 2009, 2012 Mountainminds GmbH & Co. KG and Contributors
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Marc R. Hoffmann - initial API and implementation
*
*******************************************************************************/
package org.jacoco.core.test.perf;
import org.jacoco.core.instr.Instrumenter;
import org.jacoco.core.runtime.IRuntime;
import org.jacoco.core.runtime.LoggerRuntime;
import org.jacoco.core.test.TargetLoader;
import org.objectweb.asm.ClassReader;
/**
* Scenario to measure the overhead in terms of additional byte code size
* through instrumentation.
*/
public class InstrumentationSizeSzenario implements IPerfScenario {
private final Class<?> target;
public InstrumentationSizeSzenario(Class<?> target) {
this.target = target;
}
public void run(IPerfOutput output) throws Exception {
final IRuntime runtime = new LoggerRuntime();
ClassReader reader = new ClassReader(TargetLoader.getClassData(target));
final Instrumenter instr = new Instrumenter(runtime);
instr.instrument(reader);
output.writeByteResult("instrumented class",
instr.instrument(reader).length, reader.b.length);
}
}
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