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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 org.opensaml.xml.schema.validator;
18  
19  import org.opensaml.xml.schema.XSInteger;
20  import org.opensaml.xml.validation.ValidationException;
21  import org.opensaml.xml.validation.Validator;
22  
23  /**
24   * Checks {@link org.opensaml.xml.schema.XSInteger} for Schema compliance. 
25   * 
26   * @param <T> the type to be validated
27   */
28  public class XSIntegerSchemaValidator<T extends XSInteger> implements Validator<T> {
29      
30      /** Flag specifying whether empty element content should be allowed. */
31      private boolean allowEmptyContent;
32      
33      /**
34       * Constructor.
35       *
36       * @param allowEmptyElementContent flag indicated whether empty content should be allowed
37       */
38      public XSIntegerSchemaValidator(boolean allowEmptyElementContent) {
39          allowEmptyContent = allowEmptyElementContent;
40      }
41      
42      /**
43       * Constructor.
44       * 
45       * Empty content is not allowed.
46       *
47       */
48      public XSIntegerSchemaValidator() {
49          allowEmptyContent = false;
50      }
51  
52      /** {@inheritDoc} */
53      public void validate(T xmlObject) throws ValidationException {
54          validateIntegerContent(xmlObject);
55      }
56      
57      /**
58       * Get the flag which determines whether empty content should be allowed.
59       * 
60       * @return true if empty content should be allowed, false otherwise
61       */
62      protected boolean isAllowEmptyContent() {
63          return allowEmptyContent;
64      }
65  
66      /**
67       * Validates the content of the XSBase64Binary object.
68       * 
69       * @param xmlObject the object to evaluate
70       * @throws ValidationException thrown if the content of the Base64Binary object is invalid
71       */
72      protected void validateIntegerContent(T xmlObject) throws ValidationException {
73          if (! isAllowEmptyContent()) {
74              if (xmlObject.getValue() == null) {
75                  throw new ValidationException("Integer content may not be empty");
76              }
77          }
78      }
79  
80  }