package com.fastbee.base.core.hanler;
|
|
import com.fastbee.common.core.protocol.Message;
|
import com.fastbee.base.session.Session;
|
|
import sun.reflect.generics.reflectiveObjects.ParameterizedTypeImpl;
|
|
import java.lang.reflect.Method;
|
import java.lang.reflect.Type;
|
|
/**
|
* 基础处理类
|
*
|
* @author bill
|
*/
|
public abstract class BaseHandler {
|
|
public static final int MESSAGE = 0;
|
public static final int SESSION = 1;
|
|
public final Object targetObject;
|
public final Method targetMethod;
|
public final int[] parameterTypes;
|
public final boolean returnVoid;
|
public final boolean async;
|
public final String desc;
|
|
public BaseHandler(Object target, Method targetMethod, String desc) {
|
this(target, targetMethod, desc, false);
|
}
|
|
public BaseHandler(Object targetObject, Method targetMethod, String desc, boolean async) {
|
this.targetObject = targetObject;
|
this.targetMethod = targetMethod;
|
this.returnVoid = targetMethod.getReturnType().isAssignableFrom(Void.TYPE);
|
this.async = async;
|
if (desc == null || desc.isEmpty())
|
desc = targetMethod.getName();
|
this.desc = desc;
|
|
Type[] types = targetMethod.getGenericParameterTypes();
|
int[] parameterTypes = new int[types.length];
|
try {
|
for (int i = 0; i < types.length; i++) {
|
Type type = types[i];
|
Class<?> clazz;
|
if (type instanceof ParameterizedTypeImpl) {
|
clazz = (Class<?>) ((ParameterizedTypeImpl) type).getActualTypeArguments()[0];
|
} else {
|
clazz = (Class<?>) type;
|
}
|
|
if (Message.class.isAssignableFrom(clazz)) {
|
parameterTypes[i] = MESSAGE;
|
} else if (Session.class.isAssignableFrom(clazz)) {
|
parameterTypes[i] = SESSION;
|
}
|
}
|
} catch (Exception e) {
|
throw new RuntimeException(e);
|
}
|
this.parameterTypes = parameterTypes;
|
}
|
|
public <T extends Message> T invoke(T request, Session session) throws Exception {
|
Object[] args = new Object[parameterTypes.length];
|
|
for (int i = 0; i < parameterTypes.length; i++) {
|
int type = parameterTypes[i];
|
switch (type) {
|
case BaseHandler.MESSAGE:
|
args[i] = request;
|
break;
|
case BaseHandler.SESSION:
|
args[i] = session;
|
break;
|
}
|
}
|
return (T) targetMethod.invoke(targetObject, args);
|
}
|
|
@Override
|
public String toString() {
|
return desc;
|
}
|
}
|