| /** |
| * 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.camel.converter.dozer; |
| |
| import org.apache.camel.CamelContext; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.TypeConversionException; |
| import org.apache.camel.TypeConverter; |
| import org.apache.camel.support.TypeConverterSupport; |
| import org.dozer.DozerBeanMapper; |
| import org.dozer.Mapper; |
| import org.dozer.metadata.ClassMappingMetadata; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * <code>DozerTypeConverter</code> is a standard {@link TypeConverter} that |
| * delegates to a {@link Mapper} from the Dozer framework to convert between |
| * types. <code>DozerTypeConverter</code>s are created and installed into a |
| * {@link CamelContext} by an instance of {@link DozerTypeConverterLoader}. |
| * <p> |
| * See <a href="http://dozer.sourceforge.net">dozer project page</a> or more information on configuring Dozer |
| * |
| * @see DozerTypeConverterLoader |
| */ |
| public class DozerTypeConverter extends TypeConverterSupport { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(DozerTypeConverter.class); |
| |
| private final DozerBeanMapper mapper; |
| |
| public DozerTypeConverter(DozerBeanMapper mapper) { |
| this.mapper = mapper; |
| } |
| |
| public DozerBeanMapper getMapper() { |
| return mapper; |
| } |
| |
| @Override |
| public <T> T convertTo(Class<T> type, Exchange exchange, Object value) throws TypeConversionException { |
| |
| CamelContext context = exchange != null ? exchange.getContext() : null; |
| ClassLoader appcl = context != null ? context.getApplicationContextClassLoader() : null; |
| |
| T result; |
| |
| ClassLoader tccl = Thread.currentThread().getContextClassLoader(); |
| try { |
| if (appcl != null && appcl != tccl) { |
| LOG.debug("Switching TCCL to: {}", appcl); |
| Thread.currentThread().setContextClassLoader(appcl); |
| } |
| |
| // find the map id, so we can provide that when trying to map from source to destination |
| String mapId = null; |
| if (value != null) { |
| Class<?> sourceType = value.getClass(); |
| ClassMappingMetadata metadata = getClassMappingMetadata(sourceType, type); |
| if (metadata != null) { |
| mapId = metadata.getMapId(); |
| } |
| } |
| |
| result = mapper.map(value, type, mapId); |
| |
| } finally { |
| if (appcl != null && appcl != tccl) { |
| Thread.currentThread().setContextClassLoader(tccl); |
| LOG.debug("Restored TCCL to: {}", tccl); |
| } |
| } |
| |
| return result; |
| } |
| |
| private ClassMappingMetadata getClassMappingMetadata(Class<?> sourceType, Class<?> destType) { |
| ClassMappingMetadata result = null; |
| for (ClassMappingMetadata aux : mapper.getMappingMetadata().getClassMappingsBySource(sourceType)) { |
| if (destType.isAssignableFrom(aux.getDestinationClass())) { |
| result = aux; |
| break; |
| } |
| } |
| return result; |
| } |
| } |