Java tutorial
/* * Copyright 2008- the original author or authors. * * 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.xmatthew.spy2servers.component.config; import java.util.Set; import org.springframework.beans.factory.config.BeanDefinition; import org.springframework.beans.factory.support.BeanDefinitionBuilder; import org.w3c.dom.Element; import org.w3c.dom.Node; import org.w3c.dom.NodeList; import org.xmatthew.spy2servers.component.alert.EmailAccount; import org.xmatthew.spy2servers.component.alert.EmailAlertComponent; import org.xmatthew.spy2servers.config.ComponentParser; /** * @author Matthew Xie * */ public class EmailAlertComponentParser extends ComponentParser { private static final String EMAIL_ACCOUNT_PROPERTY = "emailAccount"; private static final String EMAILS_PROPERTY = "emails"; protected Class<?> getBeanClass(Element element) { return EmailAlertComponent.class; } protected boolean shouldGenerateId() { return false; } protected boolean shouldGenerateIdAsFallback() { return true; } protected void doParse(Element element, BeanDefinitionBuilder builder) { super.doParse(element, builder); EmailAccount emailAccount = null; Set emails = null; NodeList childNodes = element.getChildNodes(); for (int i = 0; i < childNodes.getLength(); i++) { Node child = childNodes.item(i); if (child.getNodeType() == Node.ELEMENT_NODE) { String localName = child.getLocalName(); if (EMAIL_ACCOUNT_PROPERTY.equals(localName)) { emailAccount = IntegrationNamespaceUtils.parseEmailAccount((Element) child); } else if (EMAILS_PROPERTY.equals(localName)) { emails = IntegrationNamespaceUtils.parseEmails((Element) child); } } } if (emails != null) { builder.addPropertyValue(EMAILS_PROPERTY, emails); } if (emailAccount == null) { throw new RuntimeException("emailAccount must set in beans defination <emailAlert />"); } builder.addPropertyValue(EMAIL_ACCOUNT_PROPERTY, emailAccount); builder.setScope(BeanDefinition.SCOPE_SINGLETON); } }