package act;
/*-
* #%L
* ACT Framework
* %%
* Copyright (C) 2014 - 2017 ActFramework
* %%
* 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.
* #L%
*/
import act.app.App;
import act.asm.ClassWriter;
import act.util.AppByteCodeEnhancer;
import act.util.AsmByteCodeEnhancer;
import act.util.ByteCodeVisitor;
import act.util.DestroyableBase;
import org.osgl.$;
import org.osgl.util.C;
import javax.enterprise.context.ApplicationScoped;
import java.util.List;
import static act.Destroyable.Util.tryDestroyAll;
public class BytecodeEnhancerManager extends DestroyableBase {
private List<AppByteCodeEnhancer> appEnhancers = C.newList();
private List<AsmByteCodeEnhancer> generalEnhancers = C.newList();
public BytecodeEnhancerManager() {
}
public void register(AsmByteCodeEnhancer enhancer) {
if (enhancer instanceof AppByteCodeEnhancer) {
appEnhancers.add((AppByteCodeEnhancer) enhancer);
} else {
generalEnhancers.add(enhancer);
}
}
public void register(AppByteCodeEnhancer enhancer) {
appEnhancers.add(enhancer);
}
public ByteCodeVisitor appEnhancer(App app, String className, $.Var<ClassWriter> cw) {
List<AppByteCodeEnhancer> l = appFilter(app, className);
return l.isEmpty() ? null : ByteCodeVisitor.chain(cw, l);
}
public ByteCodeVisitor generalEnhancer(String className, $.Var<ClassWriter> cw) {
List<AsmByteCodeEnhancer> l = generalFilter(className);
return l.isEmpty() ? null : ByteCodeVisitor.chain(cw, l);
}
private List<AppByteCodeEnhancer> appFilter(App app, String className) {
List<AppByteCodeEnhancer> l = C.newList();
for (AppByteCodeEnhancer e : appEnhancers) {
AppByteCodeEnhancer e0 = (AppByteCodeEnhancer) e.clone();
e0.app(app);
if (e0.isTargetClass(className)) {
l.add(e0);
}
}
return l;
}
private List<AsmByteCodeEnhancer> generalFilter(String className) {
List<AsmByteCodeEnhancer> l = C.newList();
for (AsmByteCodeEnhancer e : generalEnhancers) {
AsmByteCodeEnhancer e0 = e.clone();
if (e0.isTargetClass(className)) {
l.add(e0.clone());
}
}
return l;
}
@Override
protected void releaseResources() {
tryDestroyAll(appEnhancers, ApplicationScoped.class);
appEnhancers.clear();
tryDestroyAll(generalEnhancers, ApplicationScoped.class);
generalEnhancers.clear();
}
}