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.formengine.service.validator;
35
36 import fr.paris.lutece.plugins.formengine.business.jaxb.formdefinition.CheckRule;
37 import fr.paris.lutece.portal.service.util.AppException;
38 import fr.paris.lutece.portal.service.util.AppPropertiesService;
39
40
41 /**
42 * This class is responsible for calling the appropriate validator for a check rule.
43 */
44 public class ValidatorFactory
45 {
46 private static final String PROPERTY_VALIDATOR_PREFIX = "formengine.validator.";
47 private static final String PROPERTY_VALIDATOR_SPECIFIC_TYPE_NAME = "formengine.validator.specific.type.name";
48
49 /**
50 * Constructor
51 */
52 public ValidatorFactory( )
53 {
54 }
55
56 /**
57 * This method can be called to get a validator for a given checkrule
58 * @param rule the rule to check
59 * @return An instance of the validator that will be able to check the given rule.
60 */
61 public static Validator getValidator( CheckRule rule )
62 {
63 Validator validator = null;
64 String strValidatorClass;
65
66 String strValidatorSpecificRuleType = AppPropertiesService.getProperty( PROPERTY_VALIDATOR_SPECIFIC_TYPE_NAME );
67
68 String strType = rule.getType( );
69 String strParameter = rule.getParameter( );
70
71 try
72 {
73 // if the rule is "specific", the parameter is the class name
74 if ( ( strType != null ) && ( strType.trim( ).equals( strValidatorSpecificRuleType ) ) )
75 {
76 strValidatorClass = strParameter;
77 validator = (Validator) Class.forName( strValidatorClass ).newInstance( );
78 }
79
80 // else : get the class name from the property
81 else
82 {
83 strValidatorClass = AppPropertiesService.getProperty( PROPERTY_VALIDATOR_PREFIX + strType );
84 validator = (Validator) Class.forName( strValidatorClass ).newInstance( );
85 validator.setRuleParameter( rule.getParameter( ) );
86 }
87
88 // set the min/max parameters
89 validator.setMin( rule.getMin( ) );
90 validator.setMax( rule.getMax( ) );
91
92 // set the message if one is given
93 if ( ( rule.getErrorMessage( ) != null ) && ( !rule.getErrorMessage( ).trim( ).equals( "" ) ) )
94 {
95 validator.setErrorMessage( rule.getErrorMessage( ) );
96 }
97 else if ( ( rule.getErrorKey( ) != null ) && ( !rule.getErrorKey( ).trim( ).equals( "" ) ) )
98 {
99 String strErrorMessage = AppPropertiesService.getProperty( rule.getErrorKey( ) );
100 validator.setErrorMessage( strErrorMessage );
101 }
102 }
103 catch ( InstantiationException e )
104 {
105 throw new AppException( "Formengine : an error occurred while instancing a validator", e );
106 }
107 catch ( IllegalAccessException e )
108 {
109 throw new AppException( "Formengine : an error occurred while instancing a validator", e );
110 }
111 catch ( ClassNotFoundException e )
112 {
113 throw new AppException( "Formengine : an error occurred while instancing a validator", e );
114 }
115
116 return validator;
117 }
118 }