/*
* Copyright (C) 2009 The Project Lombok Authors.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package lombok.patcher.scripts;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import lombok.patcher.PatchScript;
import lombok.patcher.TargetMatcher;
import lombok.patcher.TransplantMapper;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.ClassWriter;
public abstract class MethodLevelPatchScript extends PatchScript {
private final Set<String> affectedClasses;
private final Collection<TargetMatcher> matchers;
public MethodLevelPatchScript(Collection<TargetMatcher> matchers) {
this.matchers = matchers;
Set<String> affected = new HashSet<String>();
for (TargetMatcher t : matchers) affected.addAll(t.getAffectedClasses());
this.affectedClasses = Collections.unmodifiableSet(affected);
}
@Override public Collection<String> getClassesToReload() {
return affectedClasses;
}
@Override public byte[] patch(String className, byte[] byteCode, TransplantMapper transplantMapper) {
if (!classMatches(className, affectedClasses)) return null;
return runASM(byteCode, true, transplantMapper);
}
@Override protected final ClassVisitor createClassVisitor(ClassWriter writer, final String classSpec, TransplantMapper transplantMapper) {
MethodPatcher patcher = createPatcher(writer, classSpec, transplantMapper);
for (TargetMatcher matcher : matchers) patcher.addTargetMatcher(matcher);
return patcher;
}
protected abstract MethodPatcher createPatcher(ClassWriter writer, String classSpec, TransplantMapper transplantMapper);
}