/**
* This will return a series of bytecode instructions which can be used to compare one method with
* another. debug info like local var declarations and line numbers are ignored, so the focus is
* on the content.
*/
public static List getMethodBytecode(final String methodName, final byte[] bytes) {
final Tracer visit = new Tracer(methodName);
final ClassReader classReader = new ClassReader(bytes);
classReader.accept(visit, ClassReader.SKIP_DEBUG);
final TraceMethodVisitor trace = visit.getTrace();
return trace.getText();
}
public static java.util.List getMethodBytecode(
Class cls, String ruleClassName, String packageName, String methodName, String resource) {
org.drools.core.util.asm.MethodComparator.Tracer visit =
new org.drools.core.util.asm.MethodComparator.Tracer(methodName);
java.io.InputStream is = cls.getClassLoader().getResourceAsStream(resource);
java.io.ByteArrayOutputStream bos = new java.io.ByteArrayOutputStream();
try {
byte[] data = new byte[1024];
int byteCount;
while ((byteCount = is.read(data, 0, 1024)) > -1) {
bos.write(data, 0, byteCount);
}
} catch (java.io.IOException e) {
throw new RuntimeDroolsException(
"Unable getResourceAsStream for Class '" + ruleClassName + "' ");
}
org.mvel2.asm.ClassReader classReader = new org.mvel2.asm.ClassReader(bos.toByteArray());
classReader.accept(visit, org.mvel2.asm.ClassReader.SKIP_DEBUG);
org.mvel2.asm.util.TraceMethodVisitor trace = visit.getTrace();
return trace.getText();
}