package act.job.meta;
/*-
* #%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.Act;
import act.app.App;
import act.app.event.AppEventId;
import act.asm.Type;
import act.event.meta.SimpleEventListenerMetaInfo;
import act.sys.meta.InvokeType;
import act.sys.meta.ReturnTypeInfo;
import act.util.ClassNode;
import act.util.DestroyableBase;
import org.osgl.$;
import org.osgl.Osgl;
import org.osgl.inject.BeanSpec;
import org.osgl.util.C;
import org.osgl.util.E;
import org.osgl.util.S;
import java.lang.reflect.Method;
import java.util.List;
public class JobMethodMetaInfo extends DestroyableBase {
private String id;
private String name;
private InvokeType invokeType;
private JobClassMetaInfo clsInfo;
private ReturnTypeInfo returnType = new ReturnTypeInfo();
private List<BeanSpec> paramTypes;
private Method method;
public JobMethodMetaInfo(final JobClassMetaInfo clsInfo, final List<String> paramTypes) {
this.clsInfo = clsInfo;
final App app = Act.app();
app.jobManager().on(AppEventId.DEPENDENCY_INJECTOR_PROVISIONED, new Runnable() {
@Override
public void run() {
$.Var<Method> var = $.var();
JobMethodMetaInfo.this.paramTypes = SimpleEventListenerMetaInfo.convert(paramTypes, clsInfo.className(), name, var);
JobMethodMetaInfo.this.method = var.get();
}
});
}
private JobMethodMetaInfo(final JobClassMetaInfo clsInfo, JobMethodMetaInfo parent) {
this.clsInfo = clsInfo;
this.paramTypes = parent.paramTypes;
}
@Override
protected void releaseResources() {
clsInfo.destroy();
super.releaseResources();
}
public JobClassMetaInfo classInfo() {
return clsInfo;
}
public JobMethodMetaInfo name(String name) {
this.name = name;
return this;
}
public String name() {
return name;
}
public String fullName() {
return S.concat(clsInfo.className(), ".", name());
}
public JobMethodMetaInfo id(String id) {
this.id = id;
return this;
}
public String id() {
return S.blank(id) ? fullName() : id;
}
public Method method() {
if (null == method) {
Class<?> c = $.classForName(classInfo().className(), Act.app().classLoader());
if (null == paramTypes() || paramTypes().isEmpty()) {
method = $.getMethod(c, name());
} else {
throw new IllegalStateException("method cannot have parameters for Job invoked before app fully loaded");
}
}
return method;
}
public JobMethodMetaInfo invokeStaticMethod() {
invokeType = InvokeType.STATIC;
return this;
}
public JobMethodMetaInfo invokeInstanceMethod() {
invokeType = InvokeType.VIRTUAL;
return this;
}
public boolean isStatic() {
return InvokeType.STATIC == invokeType;
}
public JobMethodMetaInfo returnType(Type type) {
returnType = ReturnTypeInfo.of(type);
return this;
}
public Type returnType() {
return returnType.type();
}
public List<BeanSpec> paramTypes() {
return paramTypes;
}
@Override
public int hashCode() {
return $.hc(fullName());
}
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (obj instanceof JobMethodMetaInfo) {
JobMethodMetaInfo that = (JobMethodMetaInfo) obj;
return $.eq(that.fullName(), fullName());
}
return false;
}
@Override
public String toString() {
S.Buffer sb = S.newBuffer();
sb.append(_invokeType())
.append(_return())
.append(fullName());
return sb.toString();
}
public List<JobMethodMetaInfo> extendedJobMethodMetaInfoList(App app) {
E.illegalStateIf(!classInfo().isAbstract(), "this job method meta info is not abstract");
final C.List<JobMethodMetaInfo> list = C.newList();
final JobClassMetaInfo clsInfo = classInfo();
String clsName = clsInfo.className();
ClassNode node = app.classLoader().classInfoRepository().node(clsName);
if (null == node) {
return list;
}
final JobMethodMetaInfo me = this;
node.visitTree(new Osgl.Visitor<ClassNode>() {
@Override
public void visit(ClassNode classNode) throws Osgl.Break {
if (!classNode.isAbstract() && classNode.isPublic()) {
JobClassMetaInfo subClsInfo = new JobClassMetaInfo().className(classNode.name());
JobMethodMetaInfo subMethodInfo = new JobMethodMetaInfo(subClsInfo, JobMethodMetaInfo.this);
if (me.isStatic()) {
subMethodInfo.invokeStaticMethod();
} else {
subMethodInfo.invokeInstanceMethod();
}
subMethodInfo.name(me.name());
subMethodInfo.returnType(me.returnType());
list.add(subMethodInfo);
}
}
});
return list;
}
private String _invokeType() {
if (null == invokeType) {
return "";
}
switch (invokeType) {
case VIRTUAL:
return "";
case STATIC:
return "static ";
default:
assert false;
return "";
}
}
private String _return() {
if (null == returnType) {
return " ";
}
if (returnType.hasReturn()) {
return returnType.type().getClassName() + " ";
} else {
return "";
}
}
}