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1
50
51 package org.apache.excalibur.configuration.validation;
52
53 import org.apache.avalon.framework.configuration.Configuration;
54 import org.apache.avalon.framework.configuration.ConfigurationException;
55 import org.apache.avalon.framework.configuration.DefaultConfiguration;
56 import org.apache.avalon.framework.configuration.DefaultConfigurationSerializer;
57 import org.iso_relax.verifier.Schema;
58 import org.iso_relax.verifier.Verifier;
59 import org.iso_relax.verifier.VerifierConfigurationException;
60 import org.iso_relax.verifier.VerifierHandler;
61 import org.xml.sax.ErrorHandler  ;
62 import org.xml.sax.SAXException ;
63 import org.xml.sax.SAXParseException ;
64
65
69 public class JarvConfigurationValidator implements ConfigurationValidator
70 {
71 private final DefaultConfigurationSerializer m_serializer =
72 new DefaultConfigurationSerializer();
73
74 private final Schema m_schema;
75
76 public JarvConfigurationValidator( Schema schema )
77 {
78 m_schema = schema;
79 }
80
81 public ValidationResult isFeasiblyValid( Configuration configuration )
82 throws ConfigurationException
83 {
84 final ValidationResult result = new ValidationResult();
85
86 result.setResult( true );
87
88 return result;
89 }
90
91 public ValidationResult isValid( Configuration configuration )
92 throws ConfigurationException
93 {
94 final ValidationResult result = new ValidationResult();
95 final DefaultConfiguration branched =
96 new DefaultConfiguration( "root", configuration.getLocation() );
97 branched.addAll( configuration );
98 branched.makeReadOnly();
99
100 try
101 {
102 final Verifier verifier = m_schema.newVerifier();
103 final VerifierHandler handler = verifier.getVerifierHandler();
104
105 verifier.setErrorHandler( new ErrorHandler ()
106 {
107 public void warning( SAXParseException exception )
108 throws SAXException
109 {
110 result.addWarning( exception.getMessage() );
111 }
112
113 public void error( SAXParseException exception )
114 throws SAXException
115 {
116 result.addError( exception.getMessage() );
117 }
118
119 public void fatalError( final SAXParseException exception )
120 throws SAXException
121 {
122 result.addError( exception.getMessage() );
123 }
124 } );
125
126 m_serializer.serialize( handler, branched );
127
128 result.setResult( handler.isValid() );
129
130 return result;
131 }
132 catch( final VerifierConfigurationException e )
133 {
134 final String message = "Unable to verify configuration";
135 throw new ConfigurationException( message, e );
136 }
137 catch( final SAXException e )
138 {
139 final String message = "Unable to parse configuration";
140 throw new ConfigurationException( message, e );
141 }
142 catch( final IllegalStateException e )
143 {
144 final String message = "Unable to parse configuration";
145 throw new ConfigurationException( message, e );
146 }
147 }
148 }
149 |
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