| /* |
| * Copyright 2002-2006 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.apache.tuscany.sca.implementation.spring.namespace.tie; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.StringTokenizer; |
| |
| import javax.xml.namespace.QName; |
| |
| import org.springframework.beans.factory.xml.NamespaceHandlerSupport; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| |
| /** |
| * Handler for the <sca:> namespace in an application context |
| * |
| * @version $Rev$ $Date$ |
| */ |
| public class ScaNamespaceHandler extends NamespaceHandlerSupport { |
| |
| public ScaNamespaceHandler() { |
| } |
| |
| @Override |
| public void init() { |
| registerBeanDefinitionParser("reference", new ScaReferenceBeanDefinitionParser()); |
| registerBeanDefinitionParser("service", new ScaServiceBeanDefinitionParser()); |
| registerBeanDefinitionParser("property", new ScaPropertyBeanDefinitionParser()); |
| } |
| |
| private static String getNamespaceURI(Element element, String prefix) { |
| if (element == null) { |
| return null; |
| } |
| String name = ("".equals(prefix)) ? "xmlns" : "xmlns:" + prefix; |
| String ns = element.getAttribute(name); |
| if (ns != null && !"".equals(ns)) { |
| return ns; |
| } |
| Node parent = element.getParentNode(); |
| if (parent instanceof Element) { |
| return getNamespaceURI((Element)parent, prefix); |
| } else { |
| return null; |
| } |
| } |
| |
| public static List<QName> resolve(Element element, String listOfNames) { |
| List<QName> qnames = new ArrayList<QName>(); |
| StringTokenizer tokenizer = new StringTokenizer(listOfNames); |
| while (tokenizer.hasMoreTokens()) { |
| String qname = tokenizer.nextToken(); |
| String prefix = ""; |
| String local = qname; |
| int index = qname.indexOf(':'); |
| if (index != -1) { |
| local = qname.substring(index + 1); |
| prefix = qname.substring(0, index); |
| } |
| String ns = getNamespaceURI(element, prefix); |
| if (ns != null) { |
| qnames.add(new QName(ns, local, prefix)); |
| } else { |
| throw new IllegalArgumentException("Prefix " + prefix + "is not bound to a namespace"); |
| } |
| } |
| return qnames; |
| } |
| |
| public static String getAttribute(Element element, String name) { |
| String attr = element.getAttributeNS(null, name); |
| if ("".equals(attr)) { |
| return null; |
| } else { |
| return attr; |
| } |
| } |
| } |