Java tutorial
/* * Copyright 2012 Russell Morris (wrussellmorris@gmail.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 org.smf4j.spring; import java.util.ArrayList; import java.util.HashSet; import java.util.List; import java.util.Set; import org.springframework.beans.factory.support.BeanDefinitionBuilder; import org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser; import org.springframework.beans.factory.xml.ParserContext; import org.springframework.util.StringUtils; import org.springframework.util.xml.DomUtils; import org.w3c.dom.Element; /** * * @author Russell Morris (wrussellmorris@gmail.com) */ public class FileEnablerBeanDefinitionParser extends AbstractSingleBeanDefinitionParser { private static final String PATHS_ATTR = "paths"; private static final String PATH_ATTR = "path"; private static final String PATH_TAG = "path"; private static final String VALUE_ATTR = "value"; @Override protected String getBeanClassName(Element element) { return FileEnablerBean.class.getCanonicalName(); } @Override protected void doParse(Element element, ParserContext context, BeanDefinitionBuilder builder) { List<String> paths = new ArrayList<String>(); String path = element.getAttribute(PATH_ATTR); if (StringUtils.hasLength(path)) { paths.add(path); } List<Element> pathElements = DomUtils.getChildElementsByTagName(element, PATH_TAG); for (Element pathElement : pathElements) { path = pathElement.getAttribute(VALUE_ATTR); if (StringUtils.hasLength(path)) { paths.add(path); } } builder.addPropertyValue(PATHS_ATTR, paths); builder.setLazyInit(false); } @Override protected boolean shouldGenerateId() { return true; } }