/*
* Copyright 2011 Henry Coles
*
* 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 org.pitest.mutationtest.mocksupport;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import org.pitest.classinfo.ClassName;
import org.pitest.mutationtest.engine.Mutant;
import org.pitest.reflection.Reflection;
import org.pitest.util.Unchecked;
public final class JavassistInterceptor {
private JavassistInterceptor() {
}
private static Mutant mutant;
public static InputStream openClassfile(final Object classPath, // NO_UCD
final String name) {
if (isMutatedClass(name)) {
final ByteArrayInputStream bais = new ByteArrayInputStream(
mutant.getBytes());
return bais;
} else {
return returnNormalBytes(classPath, name);
}
}
private static InputStream returnNormalBytes(final Object classPath,
final String name) {
try {
return (InputStream) Reflection.publicMethod(classPath.getClass(),
"openClassfile").invoke(classPath, name);
} catch (final Exception e) {
throw Unchecked.translateCheckedException(e);
}
}
private static boolean isMutatedClass(final String name) {
return (mutant != null)
&& mutant.getDetails().getClassName()
.equals(ClassName.fromString(name));
}
public static void setMutant(final Mutant newMutant) {
mutant = newMutant;
}
}