/*
* Copyright 1999-2005 The Apache Software Foundation.
*
* Licensed 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.cocoon.components.validation.jing;
import org.apache.cocoon.components.validation.ValidationHandler;
import org.apache.cocoon.components.validation.impl.AbstractSchema;
import org.apache.cocoon.components.validation.impl.DefaultValidationHandler;
import org.apache.cocoon.components.validation.impl.DraconianErrorHandler;
import org.apache.excalibur.source.SourceValidity;
import org.xml.sax.ContentHandler;
import org.xml.sax.ErrorHandler;
import org.xml.sax.SAXException;
import com.thaiopensource.util.PropertyMap;
import com.thaiopensource.util.PropertyMapBuilder;
import com.thaiopensource.validate.Schema;
import com.thaiopensource.validate.ValidateProperty;
import com.thaiopensource.validate.Validator;
/**
* <p>An extension of {@link AbstractSchema} used by the {@link JingSchemaParser}
* implementation.</p>
*
*/
public class JingSchema extends AbstractSchema {
/** <p>The original schema instance to wrap.</p> */
private final Schema schema;
/**
* <p>Create a new {@link JingSchema} instance.</p>
*
* @param schema the JING original schema to wrap.
* @param validity the {@link SourceValidity} associated with the schema.
*/
protected JingSchema(Schema schema, SourceValidity validity) {
super(validity);
this.schema = schema;
}
/**
* <p>Return a new {@link ValidationHandler} instance that can be used to send
* SAX events to for proper validation.</p>
*
* <p>The specified {@link ErrorHandler} will be notified of all warnings or
* errors encountered validating the SAX events sent to the returned
* {@link ValidationHandler}.</p>
*
* @param errorHandler an {@link ErrorHandler} to notify of validation errors.
* @return a <b>non-null</b> {@link ValidationHandler} instance.
* @throws SAXException if an error occurred creating the validation handler.
*/
public ValidationHandler createValidator(ErrorHandler errorHandler)
throws SAXException {
if (errorHandler == null) errorHandler = DraconianErrorHandler.INSTANCE;
final PropertyMapBuilder builder = new PropertyMapBuilder();
ValidateProperty.ERROR_HANDLER.put(builder, errorHandler);
final PropertyMap properties = builder.toPropertyMap();
final Validator validator = this.schema.createValidator(properties);
final ContentHandler handler = validator.getContentHandler();
return new DefaultValidationHandler(this.getValidity(), handler);
}
}