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1   /*
2    * Copyright (c) 2002-2014, Mairie de Paris
3    * All rights reserved.
4    *
5    * Redistribution and use in source and binary forms, with or without
6    * modification, are permitted provided that the following conditions
7    * are met:
8    *
9    *  1. Redistributions of source code must retain the above copyright notice
10   *     and the following disclaimer.
11   *
12   *  2. Redistributions in binary form must reproduce the above copyright notice
13   *     and the following disclaimer in the documentation and/or other materials
14   *     provided with the distribution.
15   *
16   *  3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
17   *     contributors may be used to endorse or promote products derived from
18   *     this software without specific prior written permission.
19   *
20   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
24   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30   * POSSIBILITY OF SUCH DAMAGE.
31   *
32   * License 1.0
33   */
34  package fr.paris.lutece.plugins.accrochageff.service;
35  
36  import java.io.IOException;
37  import java.util.List;
38  
39  import org.codehaus.jackson.JsonParseException;
40  import org.codehaus.jackson.map.DeserializationConfig;
41  import org.codehaus.jackson.map.JsonMappingException;
42  import org.codehaus.jackson.map.ObjectMapper;
43  
44  import fr.paris.lutece.portal.service.util.AppLogService;
45  
46  
47  /**
48   *
49   *JsonUtil
50   *
51   */
52  public class JsonUtil
53  {
54      //ObjectMapper
55      private static ObjectMapper _mapper;
56  
57      /**
58       * return a string containing the JSON flow
59       * @param jsonResponse the JSON Response Object
60       * @return return a string containing the JSON flow
61       */
62      public static <T> T getObjectResponse( String strJsonResponse, Class<T> valueType )
63      {
64          T jsonResponse = null;
65  
66          if ( _mapper == null )
67          {
68              initMapper(  );
69          }
70  
71          try
72          {
73              jsonResponse = _mapper.readValue( strJsonResponse, valueType );
74          }
75          catch ( JsonParseException e )
76          {
77              AppLogService.error( e );
78          }
79          catch ( JsonMappingException e )
80          {
81              AppLogService.error( e );
82          }
83          catch ( IOException e )
84          {
85              AppLogService.error( e );
86          }
87  
88          return jsonResponse;
89      }
90      
91      /**
92       * return a string containing the JSON flow
93       * @param jsonResponse the JSON Response Object
94       * @return return a string containing the JSON flow
95       */
96      public static <T> List<T>  getObjectResponseList( String strJsonResponse, Class<T> valueType )
97      {
98      	List<T> jsonResponse = null;
99  
100         if ( _mapper == null )
101         {
102             initMapper(  );
103         }
104 
105         try
106         {
107             jsonResponse = _mapper.readValue( strJsonResponse, _mapper.getTypeFactory().constructCollectionType(List.class, valueType) );
108         }
109         catch ( JsonParseException e )
110         {
111             AppLogService.error( e );
112         }
113         catch ( JsonMappingException e )
114         {
115             AppLogService.error( e );
116         }
117         catch ( IOException e )
118         {
119             AppLogService.error( e );
120         }
121 
122         return jsonResponse;
123     }
124 
125 
126     private static void initMapper(  )
127     {
128         _mapper = new ObjectMapper(  );
129         //_mapper.setPropertyNamingStrategy( PropertyNamingStrategy.CAMEL_CASE_TO_LOWER_CASE_WITH_UNDERSCORES );
130         _mapper.configure( DeserializationConfig.Feature.FAIL_ON_UNKNOWN_PROPERTIES, false );
131     }
132 }