1 /***
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.xbean.spring.context.v2c;
18
19 import java.lang.reflect.InvocationTargetException;
20 import java.lang.reflect.Method;
21
22 import org.apache.xbean.spring.context.impl.PropertyEditorHelper;
23 import org.apache.xbean.spring.context.impl.QNameReflectionHelper;
24 import org.apache.xbean.spring.context.v2.XBeanNamespaceHandler;
25 import org.springframework.beans.factory.config.BeanDefinition;
26 import org.springframework.beans.factory.support.AbstractBeanDefinition;
27 import org.springframework.beans.factory.xml.BeanDefinitionParserDelegate;
28 import org.springframework.beans.factory.xml.XmlReaderContext;
29 import org.springframework.util.StringUtils;
30 import org.w3c.dom.Element;
31 import org.w3c.dom.Node;
32 import org.w3c.dom.NodeList;
33
34 public class XBeanBeanDefinitionParserDelegate extends BeanDefinitionParserDelegate {
35
36 public static final String QNAME_ELEMENT = "qname";
37
38 private XBeanQNameHelper qnameHelper;
39
40 public XBeanBeanDefinitionParserDelegate(XmlReaderContext readerContext) {
41 super(readerContext);
42 qnameHelper = new XBeanQNameHelper(readerContext);
43 }
44
45 public Object parsePropertySubElement(Element ele, BeanDefinition bd, String defaultTypeClassName) {
46 if (!isDefaultNamespace(ele.getNamespaceURI())) {
47 return internalParseNestedCustomElement(ele, bd);
48 }
49 else if (ele.getTagName().equals(QNAME_ELEMENT)) {
50 return parseQNameElement(ele);
51 }
52 else {
53 return super.parsePropertySubElement(ele, bd, defaultTypeClassName);
54 }
55 }
56
57 public AbstractBeanDefinition parseBeanDefinitionElement(Element ele, String beanName, BeanDefinition containingBean) {
58 AbstractBeanDefinition bd = super.parseBeanDefinitionElement(ele, beanName, containingBean);
59 qnameHelper.coerceNamespaceAwarePropertyValues(bd, ele);
60 return bd;
61 }
62
63 public boolean isDefaultNamespace(String namespaceUri) {
64 return (!StringUtils.hasLength(namespaceUri) ||
65 BEANS_NAMESPACE_URI.equals(namespaceUri)) ||
66 XBeanNamespaceHandler.SPRING_SCHEMA.equals(namespaceUri) ||
67 XBeanNamespaceHandler.SPRING_SCHEMA_COMPAT.equals(namespaceUri);
68 }
69
70 protected Object parseQNameElement(Element element) {
71 return QNameReflectionHelper.createQName(element, getElementText(element));
72 }
73
74 protected String getElementText(Element element) {
75 StringBuffer buffer = new StringBuffer();
76 NodeList nodeList = element.getChildNodes();
77 for (int i = 0, size = nodeList.getLength(); i < size; i++) {
78 Node node = nodeList.item(i);
79 if (node.getNodeType() == Node.TEXT_NODE) {
80 buffer.append(node.getNodeValue());
81 }
82 }
83 return buffer.toString();
84 }
85
86 private Object internalParseNestedCustomElement(Element candidateEle, BeanDefinition containingBeanDefinition) {
87 try {
88 Method mth = getClass().getSuperclass().getDeclaredMethod("parseNestedCustomElement", new Class[] { Element.class, BeanDefinition.class });
89 mth.setAccessible(true);
90 return mth.invoke(this, new Object[] { candidateEle, containingBeanDefinition });
91 } catch (Exception e) {
92 if (e instanceof InvocationTargetException && e.getCause() instanceof RuntimeException) {
93 throw (RuntimeException) e.getCause();
94 }
95 throw (IllegalStateException) new IllegalStateException("Unable to invoke parseNestedCustomElement method").initCause(e);
96 }
97 }
98
99 }