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1
50
51 package org.apache.excalibur.configuration.validation;
52
53 import java.io.InputStream  ;
54
55 import org.apache.avalon.framework.activity.Initializable;
56 import org.apache.avalon.framework.configuration.Configurable;
57 import org.apache.avalon.framework.configuration.Configuration;
58 import org.apache.avalon.framework.configuration.ConfigurationException;
59 import org.apache.avalon.framework.logger.AbstractLogEnabled;
60 import org.iso_relax.verifier.VerifierConfigurationException;
61 import org.iso_relax.verifier.VerifierFactory;
62 import org.xml.sax.SAXParseException ;
63
64
70 public class JarvConfigurationValidatorFactory
71 extends AbstractLogEnabled
72 implements Configurable, Initializable, ConfigurationValidatorFactory
73 {
74 private String m_schemaType;
75
76 private String m_schemaLanguage;
77
78 private String m_verifierFactoryClass;
79
80 private VerifierFactory m_verifierFactory;
81
82
93 public void configure( Configuration configuration )
94 throws ConfigurationException
95 {
96 m_schemaType = configuration.getAttribute( "schema-type" );
97 m_schemaLanguage = configuration.getChild( "schema-language" ).getValue( null );
98 m_verifierFactoryClass =
99 configuration.getChild( "verifier-factory-class" ).getValue( null );
100
101 if( ( null == m_schemaLanguage && null == m_verifierFactoryClass )
102 || ( null != m_schemaLanguage && null != m_verifierFactoryClass ) )
103 {
104 final String msg = "Must specify either schema-language or verifier-factory-class";
105
106 throw new ConfigurationException( msg );
107 }
108 }
109
110 public void initialize()
111 throws Exception
112 {
113 if( null != m_schemaLanguage )
114 {
115 m_verifierFactory = VerifierFactory.newInstance( m_schemaLanguage );
116 }
117 else if( null != m_verifierFactoryClass )
118 {
119 m_verifierFactory =
120 (VerifierFactory)Class.forName( m_verifierFactoryClass ).newInstance();
121 }
122 }
123
124 public ConfigurationValidator createValidator( String schemaType, InputStream schema )
125 throws ConfigurationException
126 {
127 if( !m_schemaType.equals( schemaType ) )
128 {
129 final String msg = "Invalid schema type: " + schemaType
130 + ". Validator only supports " + m_schemaType;
131
132 throw new ConfigurationException( msg );
133 }
134
135 try
136 {
137 return new JarvConfigurationValidator(
138 m_verifierFactory.compileSchema( schema ) );
139 }
140 catch( VerifierConfigurationException e )
141 {
142 final String msg = "Unable to create schema";
143
144 throw new ConfigurationException( msg, e );
145 }
146 catch( SAXParseException e )
147 {
148 final String msg = "Unable to parse schema [line: " + e.getLineNumber()
149 + ", column: " + e.getColumnNumber()
150 + ", msg: " + e.getMessage() + "]";
151
152 throw new ConfigurationException( msg, e );
153 }
154 catch( Exception e )
155 {
156 final String msg = "Unable to parse schema [url: " + schema
157 + ", msg: " + e.getMessage() + "]";
158
159 throw new ConfigurationException( msg, e );
160 }
161 }
162 }
163 |
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