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1   /**
2    * Copyright 2005-2012 The Kuali Foundation
3    *
4    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
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  package org.kuali.rice.krad.datadictionary.validation.processor;
17  
18  import org.apache.commons.lang.StringUtils;
19  import org.kuali.rice.krad.datadictionary.exception.AttributeValidationException;
20  import org.kuali.rice.krad.datadictionary.validation.AttributeValueReader;
21  import org.kuali.rice.krad.datadictionary.validation.ValidationUtils;
22  import org.kuali.rice.krad.datadictionary.validation.constraint.Constraint;
23  import org.kuali.rice.krad.datadictionary.validation.constraint.PrerequisiteConstraint;
24  import org.kuali.rice.krad.datadictionary.validation.result.ConstraintValidationResult;
25  import org.kuali.rice.krad.datadictionary.validation.result.DictionaryValidationResult;
26  import org.kuali.rice.krad.datadictionary.validation.result.ProcessorResult;
27  import org.kuali.rice.krad.uif.UifConstants;
28  
29  /**
30   * 
31   * @author Kuali Rice Team (rice.collab@kuali.org) 
32   */
33  public class PrerequisiteConstraintProcessor extends BasePrerequisiteConstraintProcessor<PrerequisiteConstraint> {
34  	
35  	private static final String CONSTRAINT_NAME = "prerequisite constraint";
36      private static final String FALLBACK_KEY = "prerequisiteFallback";
37  
38  	
39  	/**
40  	 * @see org.kuali.rice.krad.datadictionary.validation.processor.ConstraintProcessor#process(DictionaryValidationResult, Object, org.kuali.rice.krad.datadictionary.validation.capability.Validatable, org.kuali.rice.krad.datadictionary.validation.AttributeValueReader)
41  	 */
42  	@Override
43  	public ProcessorResult process(DictionaryValidationResult result, Object value, PrerequisiteConstraint constraint, AttributeValueReader attributeValueReader) throws AttributeValidationException {
44  
45  		if (ValidationUtils.isNullOrEmpty(value))
46  			return new ProcessorResult(result.addSkipped(attributeValueReader, CONSTRAINT_NAME));
47  		
48          
49  		ConstraintValidationResult constraintValidationResult = processPrerequisiteConstraint(constraint, attributeValueReader);
50  
51          if(constraint != null){
52              if(StringUtils.isNotBlank(constraint.getLabelKey())){
53                  constraintValidationResult.setConstraintLabelKey(constraint.getLabelKey());
54              }
55              else{
56                  constraintValidationResult.setConstraintLabelKey(UifConstants.Messages.VALIDATION_MSG_KEY_PREFIX +
57                          FALLBACK_KEY);
58              }
59              constraintValidationResult.setErrorParameters(constraint.getValidationMessageParamsArray());
60          }
61  
62  		result.addConstraintValidationResult(attributeValueReader, constraintValidationResult);
63  		
64  		return new ProcessorResult(constraintValidationResult);
65  	}
66  
67  	@Override 
68  	public String getName() {
69  		return CONSTRAINT_NAME;
70  	}
71  	
72  	/**
73  	 * @see org.kuali.rice.krad.datadictionary.validation.processor.ConstraintProcessor#getConstraintType()
74  	 */
75  	@Override
76  	public Class<? extends Constraint> getConstraintType() {
77  		return PrerequisiteConstraint.class;
78  	}
79  
80  }