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1   /**
2    * Copyright 2005-2013 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.exporter;
17  
18  import org.kuali.rice.krad.exception.DuplicateKeyException;
19  
20  import java.util.LinkedHashMap;
21  import java.util.Map;
22  
23  /**
24   * Adds a litle strong type-checking and validation on top of the generic LinkedHashMap
25   */
26  @Deprecated
27  public class StringMap extends LinkedHashMap<String, Object> {
28      private static final long serialVersionUID = 7364206011639131063L;
29  
30      /**
31       * Associates the given String with the given Map value.
32       *
33       * @param key
34       * @param value
35       */
36      public void set(String key, Map<String, Object> value) {
37          setUnique(key, value);
38      }
39  
40      /**
41       * Associates the given String with the given String value.
42       *
43       * @param key
44       * @param value
45       */
46      public void set(String key, String value) {
47          setUnique(key, value);
48      }
49  
50      /**
51       * Verifies that the key isn't blank, and that the value isn't null, and prevents duplicate keys from being used.
52       *
53       * @param key
54       * @param value
55       */
56      private void setUnique(String key, Object value) {
57          if (value == null) {
58              throw new IllegalArgumentException("invalid (null) value");
59          }
60  
61          if (containsKey(key)) {
62              throw new DuplicateKeyException("duplicate key '" + key + "'");
63          }
64  
65          super.put(key, value);
66      }
67  
68      @Override
69      public Object put(String key, Object value) {
70          throw new UnsupportedOperationException("direct calls to put not supported");
71      }
72  
73      @Override
74      public void putAll(Map<? extends String, ? extends Object> m) {
75          throw new UnsupportedOperationException("direct calls to put not supported");
76      }
77  }