/*
* Copyright 2004-2015 the Seasar Foundation and the Others.
*
* 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 org.seasar.framework.container.factory;
import org.seasar.framework.aop.Pointcut;
import org.seasar.framework.aop.impl.PointcutImpl;
import org.seasar.framework.container.AspectDef;
import org.seasar.framework.container.ComponentDef;
import org.seasar.framework.container.impl.AspectDefImpl;
import org.seasar.framework.util.StringUtil;
import org.seasar.framework.xml.TagHandlerContext;
import org.xml.sax.Attributes;
/**
* diconファイルの<code>aspect</code>要素を解釈するためのクラスです。
*
* @author higa
*/
public class AspectTagHandler extends AbstractTagHandler {
private static final long serialVersionUID = 5619707344253136193L;
public void start(TagHandlerContext context, Attributes attributes) {
AspectDef aspectDef = null;
String pointcutStr = attributes.getValue("pointcut");
if (pointcutStr != null) {
String[] methodNames = StringUtil.split(pointcutStr, ", ");
aspectDef = createAspectDef(createPointcut(methodNames));
} else {
aspectDef = createAspectDef();
}
context.push(aspectDef);
}
public void end(TagHandlerContext context, String body) {
AspectDef aspectDef = (AspectDef) context.pop();
if (!StringUtil.isEmpty(body)) {
aspectDef.setExpression(createExpression(context, body));
}
ComponentDef componentDef = (ComponentDef) context.peek();
componentDef.addAspectDef(aspectDef);
}
/**
* アスペクト定義を作成します。
*
* @return アスペクト定義
*/
protected AspectDefImpl createAspectDef() {
return new AspectDefImpl();
}
/**
* アスペクト定義を作成します。
*
* @param pointcut
* @return アスペクト定義
*/
protected AspectDefImpl createAspectDef(Pointcut pointcut) {
return new AspectDefImpl(pointcut);
}
/**
* ポイントカットを作成します。
*
* @param methodNames
* @return ポイントカット
*/
protected Pointcut createPointcut(String[] methodNames) {
return new PointcutImpl(methodNames);
}
}