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A processor for parsing, validating, serializing and manipulating XML, written in Java
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.xerces.jaxp.validation;
import javax.xml.XMLConstants;
import javax.xml.validation.SchemaFactory;
import org.apache.xerces.impl.Constants;
/**
* {@link SchemaFactory} for XML Schema.
*
* @author Kohsuke Kawaguchi ([email protected])
* @version $Id$
*/
public final class XMLSchemaFactory extends BaseSchemaFactory {
public XMLSchemaFactory() {
super(Constants.W3C_XML_SCHEMA10_NS_URI);
}
/**
* Is specified schema supported by this SchemaFactory
?
*
* @param schemaLanguage Specifies the schema language which the returned SchemaFactory
will understand.
* schemaLanguage
must specify a valid schema language.
*
* @return true
if SchemaFactory
supports schemaLanguage
, else false
.
*
* @throws NullPointerException If schemaLanguage
is null
.
* @throws IllegalArgumentException If schemaLanguage.length() == 0
* or schemaLanguage
does not specify a valid schema language.
*/
public boolean isSchemaLanguageSupported(String schemaLanguage) {
if (schemaLanguage == null) {
throw new NullPointerException(JAXPValidationMessageFormatter.formatMessage(getLocale(),
"SchemaLanguageNull", null));
}
if (schemaLanguage.length() == 0) {
throw new IllegalArgumentException(JAXPValidationMessageFormatter.formatMessage(getLocale(),
"SchemaLanguageLengthZero", null));
}
// only W3C XML Schema 1.0 is supported
return schemaLanguage.equals(XMLConstants.W3C_XML_SCHEMA_NS_URI) ||
schemaLanguage.equals(Constants.W3C_XML_SCHEMA10_NS_URI);
}
} // XMLSchemaFactory