/**
 * 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.plugin.activerecord.tx;

import java.sql.SQLException;
import java.util.regex.Pattern;
import com.jfinal.aop.Interceptor;
import com.jfinal.core.ActionInvocation;
import com.jfinal.plugin.activerecord.Db;
import com.jfinal.plugin.activerecord.IAtom;
import com.jfinal.util.StringKit;

/**
 * TxByRegex.
 */
public class TxByRegex implements Interceptor {
	
	private Pattern pattern;
	
	public TxByRegex(String regex) {
		this(regex, true);
	}
	
	public TxByRegex(String regex, boolean caseSensitive) {
		if (StringKit.isBlank(regex))
			throw new IllegalArgumentException("regex can not be blank.");
		
		pattern = caseSensitive ? Pattern.compile(regex) : Pattern.compile(regex, Pattern.CASE_INSENSITIVE);
	}
	
	public void intercept(final ActionInvocation ai) {
		if (pattern.matcher(ai.getActionKey()).matches()) {
			Db.tx(new IAtom(){
				public boolean run() throws SQLException {
					ai.invoke();
					return true;
				}});
		}
		else {
			ai.invoke();
		}
	}
}