001    /**
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package org.apache.camel.processor.validation;
018    
019    import java.util.ArrayList;
020    import java.util.List;
021    
022    import javax.xml.transform.dom.DOMResult;
023    import javax.xml.validation.Schema;
024    import org.xml.sax.SAXException;
025    import org.xml.sax.SAXParseException;
026    
027    
028    import org.apache.camel.Exchange;
029    import org.apache.camel.ValidationException;
030    import org.apache.commons.logging.Log;
031    import org.apache.commons.logging.LogFactory;
032    
033    /**
034     * A default error handler which just stores all the errors so they can be reported or transformed.
035     *
036     * @version $Revision: 36321 $
037     */
038    public class DefaultValidationErrorHandler implements ValidatorErrorHandler {
039        private static final transient Log LOG = LogFactory.getLog(DefaultValidationErrorHandler.class);
040        private List<SAXParseException> warnings = new ArrayList<SAXParseException>();
041        private List<SAXParseException> errors = new ArrayList<SAXParseException>();
042        private List<SAXParseException> fatalErrors = new ArrayList<SAXParseException>();
043    
044        public void warning(SAXParseException e) throws SAXException {
045            if (LOG.isDebugEnabled()) {
046                LOG.debug("warning: " + e, e);
047            }
048            warnings.add(e);
049        }
050    
051        public void error(SAXParseException e) throws SAXException {
052            if (LOG.isDebugEnabled()) {
053                LOG.debug("error: " + e, e);
054            }
055            errors.add(e);
056        }
057    
058        public void fatalError(SAXParseException e) throws SAXException {
059            if (LOG.isDebugEnabled()) {
060                LOG.debug("fatalError: " + e, e);
061            }
062            fatalErrors.add(e);
063        }
064    
065        public void reset() {
066            warnings.clear();
067            errors.clear();
068            fatalErrors.clear();
069        }
070    
071        public boolean isValid() {
072            return errors.isEmpty() && fatalErrors.isEmpty();
073        }
074    
075        public void handleErrors(Exchange exchange, Schema schema, DOMResult result) throws ValidationException {
076            if (!isValid()) {
077                throw new SchemaValidationException(exchange, schema, fatalErrors, errors, warnings);
078            }
079        }
080    
081        public void handleErrors(Exchange exchange, Object schema) throws ValidationException {
082            if (!isValid()) {
083                throw new SchemaValidationException(exchange, schema, fatalErrors, errors, warnings);
084            }
085        }
086    }