package act.mail.bytecode;
/*-
* #%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.ClassVisitor;
import act.asm.MethodVisitor;
import act.asm.Type;
import act.mail.meta.MailerClassMetaInfo;
import act.mail.meta.MailerClassMetaInfoHolder;
import act.mail.meta.SenderMethodMetaInfo;
import act.util.AppByteCodeEnhancer;
import org.osgl.$;
import org.osgl.util.S;
/**
* Enhance mailer class
*/
public class MailerEnhancer extends AppByteCodeEnhancer<MailerEnhancer> {
private MailerClassMetaInfoHolder classInfoHolder;
private String className;
public MailerEnhancer() {
super(S.F.startsWith("act.").negate().or(S.F.startsWith("act.fsa")));
}
public MailerEnhancer(ClassVisitor cv, MailerClassMetaInfoHolder infoHolder) {
super(_F.isMailer(infoHolder), cv);
this.classInfoHolder = infoHolder;
}
@Override
public AppByteCodeEnhancer app(App app) {
this.classInfoHolder = app.classLoader();
return super.app(app);
}
@Override
protected Class<MailerEnhancer> subClass() {
return MailerEnhancer.class;
}
public MailerEnhancer classInfoHolder(MailerClassMetaInfoHolder holder) {
classInfoHolder = holder;
predicate(_F.isMailer(holder));
return this;
}
@Override
public void visit(int version, int access, String name, String signature, String superName, String[] interfaces) {
super.visit(version, access, name, signature, superName, interfaces);
className = Type.getObjectType(name).getClassName();
}
@Override
public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
MethodVisitor mv = super.visitMethod(access, name, desc, signature, exceptions);
SenderMethodMetaInfo info = methodInfo(name, access);
if (null == info) {
return mv;
}
logger.debug(">>>About to enhance mailer method: %s", name);
return new SenderEnhancer(mv, info, access, name, desc, signature, exceptions);
}
private SenderMethodMetaInfo methodInfo(String name, int access) {
if (isPublic(access) && !isConstructor(name)) {
MailerClassMetaInfo ccInfo = classInfoHolder.mailerClassMetaInfo(className);
if (null == ccInfo) {
return null;
}
SenderMethodMetaInfo info = ccInfo.sender(name);
if (null != info) {
return info;
}
return ccInfo.sender(name);
} else {
return null;
}
}
private boolean isTargetMethod(String name, int access) {
return isPublic(access) && !isConstructor(name) && methodInfo(name, access) != null;
}
private enum _F {
;
private static final $.Predicate<String> isMailer(final MailerClassMetaInfoHolder infoSrc) {
return new $.Predicate<String>() {
@Override
public boolean test(String s) {
return infoSrc.mailerClassMetaInfo(s) != null;
}
};
}
}
}