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.bean.validator;
018    
019    import java.util.Map;
020    
021    import javax.validation.Configuration;
022    import javax.validation.ConstraintValidatorFactory;
023    import javax.validation.MessageInterpolator;
024    import javax.validation.TraversableResolver;
025    import javax.validation.Validation;
026    import javax.validation.ValidatorFactory;
027    
028    import org.apache.camel.Endpoint;
029    import org.apache.camel.impl.DefaultComponent;
030    import org.apache.camel.impl.ProcessorEndpoint;
031    
032    /**
033     * Bean Validator Component for validating java beans against JSR 303 Validator
034     *
035     * @version $Revision: 19061 $
036     */
037    public class BeanValidatorComponent extends DefaultComponent {
038        
039        protected Endpoint createEndpoint(String uri, String remaining, Map<String, Object> parameters) throws Exception {
040            BeanValidator beanValidator = new BeanValidator();
041            
042            MessageInterpolator messageInterpolator = resolveAndRemoveReferenceParameter(parameters, "messageInterpolator", MessageInterpolator.class);
043            TraversableResolver traversableResolver = resolveAndRemoveReferenceParameter(parameters, "traversableResolver", TraversableResolver.class);
044            ConstraintValidatorFactory constraintValidatorFactory = resolveAndRemoveReferenceParameter(parameters, "constraintValidatorFactory", ConstraintValidatorFactory.class);
045            String group = getAndRemoveParameter(parameters, "group", String.class);
046            
047            Configuration configuration = Validation.byDefaultProvider().configure();
048            
049            if (messageInterpolator != null) {
050                configuration.messageInterpolator(messageInterpolator);
051            }
052            
053            if (traversableResolver != null) {
054                configuration.traversableResolver(traversableResolver);
055            }
056            
057            if (constraintValidatorFactory != null) {
058                configuration.constraintValidatorFactory(constraintValidatorFactory);            
059            }
060            
061            ValidatorFactory validatorFactory = configuration.buildValidatorFactory();
062            beanValidator.setValidatorFactory(validatorFactory);
063            
064            if (group != null) {
065                beanValidator.setGroup(getCamelContext().getClassResolver().resolveMandatoryClass(group));
066            }
067    
068            return new ProcessorEndpoint(uri, this, beanValidator);
069        }
070    }