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1   /*
2    * Copyright [2007] [University Corporation for Advanced Internet Development, Inc.]
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    * http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package edu.internet2.middleware.shibboleth.common.config.attribute.filtering;
18  
19  import java.util.List;
20  import java.util.Map;
21  
22  import javax.xml.namespace.QName;
23  
24  import org.opensaml.xml.util.DatatypeHelper;
25  import org.opensaml.xml.util.XMLHelper;
26  import org.springframework.beans.factory.support.BeanDefinitionBuilder;
27  import org.springframework.beans.factory.xml.ParserContext;
28  import org.w3c.dom.Element;
29  
30  import edu.internet2.middleware.shibboleth.common.attribute.filtering.provider.AttributeRule;
31  import edu.internet2.middleware.shibboleth.common.config.SpringConfigurationUtils;
32  
33  /**
34   * Spring bean definition parser to configure an {@link AttributeRule}.
35   */
36  public class AttributeRuleBeanDefinitionParser extends BaseFilterBeanDefinitionParser {
37  
38      /** Element name. */
39      public static final QName ELEMENT_NAME = new QName(AttributeFilterNamespaceHandler.NAMESPACE, "AttributeRule");
40  
41      /** Schema type name. */
42      public static final QName TYPE_NAME = new QName(AttributeFilterNamespaceHandler.NAMESPACE, "AttributeRuleType");
43  
44      /** {@inheritDoc} */
45      protected Class getBeanClass(Element arg0) {
46          return AttributeRule.class;
47      }
48  
49      /** {@inheritDoc} */
50      protected void doParse(Element configElement, ParserContext parserContext, BeanDefinitionBuilder builder) {
51          super.doParse(configElement, parserContext, builder);
52  
53          builder.addConstructorArgValue(DatatypeHelper.safeTrimOrNullString(configElement.getAttributeNS(null,
54                  "attributeID")));
55  
56          Map<QName, List<Element>> children = XMLHelper.getChildElements(configElement);
57  
58          List<Element> permitValueRule = children.get(new QName(AttributeFilterNamespaceHandler.NAMESPACE,
59                  "PermitValueRule"));
60          if (permitValueRule != null && !permitValueRule.isEmpty()) {
61              builder.addPropertyValue("permitValueRule", SpringConfigurationUtils.parseInnerCustomElement(
62                      permitValueRule.get(0), parserContext));
63          }
64  
65          List<Element> permitValueRuleRef = children.get(new QName(AttributeFilterNamespaceHandler.NAMESPACE,
66                  "PermitValueRuleReference"));
67          if (permitValueRuleRef != null && !permitValueRuleRef.isEmpty()) {
68              String reference = getAbsoluteReference(configElement, "PermitValueRule", permitValueRuleRef.get(0)
69                      .getTextContent());
70              builder.addPropertyReference("permitValueRule", reference);
71          }
72  
73          List<Element> denyValueRule = children
74                  .get(new QName(AttributeFilterNamespaceHandler.NAMESPACE, "DenyValueRule"));
75          if (denyValueRule != null && !denyValueRule.isEmpty()) {
76              builder.addPropertyValue("denyValueRule", SpringConfigurationUtils.parseInnerCustomElement(denyValueRule
77                      .get(0), parserContext));
78          }
79  
80          List<Element> denyValueRuleRef = children.get(new QName(AttributeFilterNamespaceHandler.NAMESPACE,
81                  "DenyValueRuleReference"));
82          if (denyValueRuleRef != null && !denyValueRuleRef.isEmpty()) {
83              String reference = getAbsoluteReference(configElement, "DenyValueRuleReference", denyValueRuleRef.get(0)
84                      .getTextContent());
85              builder.addPropertyReference("denyValueRule", reference);
86          }
87      }
88  }