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.component.validator;
018    
019    import java.io.IOException;
020    
021    import javax.xml.transform.Source;
022    import javax.xml.transform.stream.StreamSource;
023    
024    import org.apache.camel.processor.validation.ValidatingProcessor;
025    
026    import org.springframework.core.io.Resource;
027    
028    /**
029     * Validator that uses Spring for reading the scheme resource.
030     *
031     * @version $Revision: 43862 $
032     */
033    public class SpringValidator extends ValidatingProcessor {
034        private Resource schemaResource;
035    
036        public Resource getSchemaResource() {
037            return schemaResource;
038        }
039    
040        public void setSchemaResource(Resource schemaResource) {
041            this.schemaResource = schemaResource;
042        }
043    
044        @Override
045        protected Source createSchemaSource() throws IOException {
046            if (schemaResource != null) {
047                if (schemaResource.getURL() == null) {
048                    return new StreamSource(schemaResource.getInputStream());
049                } else {
050                    return new StreamSource(schemaResource.getInputStream(), schemaResource.getURL().toExternalForm());
051                }
052            } else {
053                throw new IllegalArgumentException("You must specify a schema, schemaFile, schemaResource, schemaSource or schemaUrl property");
054            }
055        }
056    }