/**
* Copyright (c) 2011-2012, James Zhan 詹波 (jfinal@126.com).
*
* 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.
*/
package com.jfinal.aop;
import java.util.ArrayList;
import java.util.List;
import com.jfinal.core.ActionInvocation;
/**
* InterceptorStack.
*/
public abstract class InterceptorStack implements Interceptor {
private Interceptor[] inters;
private List<Interceptor> interList;
public InterceptorStack() {
config();
if (interList == null)
throw new RuntimeException("You must invoke addInterceptors(...) to config your InterceptorStack");
inters = interList.toArray(new Interceptor[interList.size()]);
interList.clear();
interList = null;
}
protected final InterceptorStack addInterceptors(Interceptor... interceptors) {
if (interceptors == null || interceptors.length == 0)
throw new IllegalArgumentException("Interceptors can not be null");
if (interList == null)
interList = new ArrayList<Interceptor>();
for (Interceptor ref : interceptors)
interList.add(ref);
return this;
}
public final void intercept(ActionInvocation ai) {
new ActionInvocationWrapper(ai, inters).invoke();
}
public abstract void config();
}