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1   /*
2    * Copyright [2005] [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  /**
18   * 
19   */
20  
21  package org.opensaml.saml2.metadata.validator;
22  
23  import org.opensaml.saml2.metadata.EntityDescriptor;
24  import org.opensaml.xml.util.DatatypeHelper;
25  import org.opensaml.xml.validation.ValidationException;
26  import org.opensaml.xml.validation.Validator;
27  
28  /**
29   * Checks {@link org.opensaml.saml2.metadata.EntityDescriptor} for Schema compliance.
30   */
31  public class EntityDescriptorSchemaValidator implements Validator<EntityDescriptor> {
32  
33      /** Constructor */
34      public EntityDescriptorSchemaValidator() {
35  
36      }
37  
38      /** {@inheritDoc} */
39      public void validate(EntityDescriptor entityDescriptor) throws ValidationException {
40          validateEntityID(entityDescriptor);
41          validateDescriptors(entityDescriptor);
42      }
43  
44      /**
45       * Checks that EntityID is present and valid.
46       * 
47       * @param entityDescriptor
48       * @throws ValidationException
49       */
50      protected void validateEntityID(EntityDescriptor entityDescriptor) throws ValidationException {
51          if (DatatypeHelper.isEmpty(entityDescriptor.getEntityID())) {
52              throw new ValidationException("Entity ID required.");
53          } else if (entityDescriptor.getEntityID().length() > 1024) {
54              throw new ValidationException("Max Entity ID length is 1024.");
55          }
56      }
57  
58      /**
59       * Checks that an AffiliationDescriptor OR one or more RoleDescriptors are present.
60       * 
61       * @param entityDescriptor
62       * @throws ValidationException
63       */
64      protected void validateDescriptors(EntityDescriptor entityDescriptor) throws ValidationException {
65          if ((entityDescriptor.getRoleDescriptors() == null || entityDescriptor.getRoleDescriptors().size() < 1)
66                  && entityDescriptor.getAffiliationDescriptor() == null) {
67              throw new ValidationException("Must have an AffiliationDescriptor or one or more RoleDescriptors.");
68          }
69  
70          if (entityDescriptor.getAffiliationDescriptor() != null && entityDescriptor.getRoleDescriptors() != null
71                  && entityDescriptor.getRoleDescriptors().size() > 0) {
72              throw new ValidationException("Cannot have an AffiliationDescriptor AND RoleDescriptors");
73          }
74      }
75  }