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1   /**************************************************************************
2    Copyright 2005 Webstersmalley
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   * Created on 14-Aug-2005
18   */
19  package com.webstersmalley.picweb.online.bus;
20  
21  import org.apache.commons.logging.Log;
22  import org.apache.commons.logging.LogFactory;
23  import org.springframework.validation.Errors;
24  import org.springframework.validation.ValidationUtils;
25  import org.springframework.validation.Validator;
26  
27  public class CategoryAdminValidator implements Validator {
28  
29      private CategoryManager categoryManager;
30  
31      private Log log = LogFactory.getLog(getClass());
32  
33      /***
34       * @return Returns the categoryManager.
35       */
36      public CategoryManager getCategoryManager() {
37          return categoryManager;
38      }
39  
40      /***
41       * @param categoryManager
42       *            The categoryManager to set.
43       */
44      public void setCategoryManager(CategoryManager categoryManager) {
45          this.categoryManager = categoryManager;
46      }
47  
48      public boolean supports(Class clazz) {
49          return clazz.equals(Category.class);
50      }
51  
52      public void validate(Object obj, Errors errors) {
53          log.info("Validate kicking in on: " + obj);
54          Category category = (Category) obj;
55          ValidationUtils.rejectIfEmptyOrWhitespace(errors, "name",
56                  "required.name", "Name is required");
57          try {
58              categoryManager.getCategory(category.getName());
59              log.info("We have got a category with this name ("
60                      + category.getName() + "), adding to errors");
61              errors.rejectValue("name", "error.category-already-exists",
62                      "Category Already Exists");
63          } catch (CategoryNotFoundException e) {
64  
65          }
66      }
67  
68  }