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/**
 * Copyright (c) 2011-2017, James Zhan 詹波 ([email protected]).
 *
 * 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.concurrent.ConcurrentHashMap;

/**
 * Enhancer
 */
@SuppressWarnings("unchecked")
public class Enhancer {
	
	private static final ConcurrentHashMap singleton = new ConcurrentHashMap();
	
	private Enhancer(){}

	public static  T enhance(Class targetClass) {
		return (T)net.sf.cglib.proxy.Enhancer.create(targetClass, new Callback());
	}
	
	public static  T enhance(Class targetClass, Interceptor... injectInters) {
		return (T)net.sf.cglib.proxy.Enhancer.create(targetClass, new Callback(injectInters));
	}
	
	public static  T enhance(Class targetClass, Class... injectIntersClasses) {
		return (T)enhance(targetClass, createInjectInters(injectIntersClasses));
	}
	
	public static  T enhance(Class targetClass, Class injectIntersClass) {
		return (T)enhance(targetClass, createInjectInters(injectIntersClass));
	}
	
	public static  T enhance(Class targetClass, Class injectIntersClass1, Class injectIntersClass2) {
		return (T)enhance(targetClass, createInjectInters(injectIntersClass1, injectIntersClass2));
	}
	
	public static  T enhance(Class targetClass, Class injectIntersClass1, Class injectIntersClass2, Class injectIntersClass3) {
		return (T)enhance(targetClass, createInjectInters(injectIntersClass1, injectIntersClass2, injectIntersClass3));
	}
	
	public static  T getTarget(String singletonKey) {
		return (T)singleton.get(singletonKey);
	}
	
	public static  T enhance(String singletonKey, Class targetClass) {
		Object target = singleton.get(singletonKey);
		if (target == null) {
			target = enhance(targetClass);
			singleton.put(singletonKey, target);
		}
		return (T)target;
	}
	
	public static  T enhance(String singletonKey, Class targetClass, Interceptor... injectInters) {
		Object target = singleton.get(singletonKey);
		if (target == null) {
			target = enhance(targetClass, injectInters);
			singleton.put(singletonKey, target);
		}
		return (T)target;
	}
	
	public static  T enhance(String singletonKey, Class targetClass, Class... injectIntersClasses) {
		Object target = singleton.get(singletonKey);
		if (target == null) {
			target = enhance(targetClass, injectIntersClasses);
			singleton.put(singletonKey, target);
		}
		return (T)target;
	}
	
	public static  T enhance(Object target) {
		return (T)net.sf.cglib.proxy.Enhancer.create(target.getClass(), new Callback(target));
	}
	
	public static  T enhance(Object target, Interceptor... injectInters) {
		return (T)net.sf.cglib.proxy.Enhancer.create(target.getClass(), new Callback(target, injectInters));
	}
	
	public static  T enhance(Object target, Class... injectIntersClasses) {
		return (T)enhance(target, createInjectInters(injectIntersClasses));
	}
	
	public static  T enhance(Object target, Class injectIntersClass) {
		return (T)enhance(target, createInjectInters(injectIntersClass));
	}
	
	public static  T enhance(Object target, Class injectIntersClass1, Class injectIntersClass2) {
		return (T)enhance(target, createInjectInters(injectIntersClass1, injectIntersClass2));
	}
	
	public static  T enhance(Object target, Class injectIntersClass1, Class injectIntersClass2, Class injectIntersClass3) {
		return (T)enhance(target, createInjectInters(injectIntersClass1, injectIntersClass2, injectIntersClass3));
	}
	
	public static  T enhance(String singletonKey, Object target) {
		Object result = singleton.get(singletonKey);
		if (result == null) {
			result = enhance(target);
			singleton.put(singletonKey, result);
		}
		return (T)result;
	}
	
	public static  T enhance(String singletonKey, Object target, Interceptor... injectInters) {
		Object result = singleton.get(singletonKey);
		if (result == null) {
			result = enhance(target, injectInters);
			singleton.put(singletonKey, result);
		}
		return (T)result;
	}
	
	public static  T enhance(String singletonKey, Object target, Class... injectIntersClasses) {
		Object result = singleton.get(singletonKey);
		if (result == null) {
			result = enhance(target, injectIntersClasses);
			singleton.put(singletonKey, result);
		}
		return (T)result;
	}
	
	private static Interceptor[] createInjectInters(Class... injectInterClasses) {
		return InterceptorManager.me().createInterceptor(injectInterClasses);
	}
	
	/**
	 * Add global service interceptor, the same as me.addGlobalServiceInterceptor(...)
	 * in YourJFinalConfig.configInterceptor(Interceptors me)
	 */
	// public static void addGlobalServiceInterceptor(Interceptor... inters) {
		// InterceptorManager.me().addGlobalServiceInterceptor(inters);
	// }
}