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.model;
018    
019    import java.util.Collections;
020    import java.util.List;
021    
022    import javax.xml.bind.annotation.XmlAccessType;
023    import javax.xml.bind.annotation.XmlAccessorType;
024    import javax.xml.bind.annotation.XmlAttribute;
025    import javax.xml.bind.annotation.XmlRootElement;
026    import javax.xml.bind.annotation.XmlTransient;
027    
028    import org.apache.camel.Processor;
029    import org.apache.camel.RuntimeCamelException;
030    import org.apache.camel.processor.ConvertBodyProcessor;
031    import org.apache.camel.spi.RouteContext;
032    import org.apache.camel.util.ObjectHelper;
033    
034    /**
035     * Represents an XML <convertBodyTo/> element
036     */
037    @XmlRootElement(name = "convertBodyTo")
038    @XmlAccessorType(XmlAccessType.FIELD)
039    public class ConvertBodyDefinition extends ProcessorDefinition<ProcessorDefinition> {
040        @XmlAttribute
041        private String type;
042        @XmlTransient
043        private Class typeClass;
044    
045        public ConvertBodyDefinition() {
046        }
047    
048        public ConvertBodyDefinition(String type) {
049            setType(type);
050        }
051    
052        public ConvertBodyDefinition(Class typeClass) {
053            setTypeClass(typeClass);
054            setType(typeClass.getName());
055        }
056    
057        @Override
058        public String toString() {        
059            return "convertBodyTo[" + getType() + "]";
060        }
061    
062        @Override
063        public String getShortName() {
064            return "convertBodyTo";
065        }
066    
067        @Override
068        public Processor createProcessor(RouteContext routeContext) throws Exception {
069            return new ConvertBodyProcessor(getTypeClass());
070        }
071    
072        @Override
073        @SuppressWarnings("unchecked")
074        public List<ProcessorDefinition> getOutputs() {
075            return Collections.EMPTY_LIST;
076        }
077    
078        protected Class createTypeClass() {
079            return ObjectHelper.loadClass(getType(), getClass().getClassLoader());
080        }
081    
082        public void setType(String type) {
083            this.type = type;
084        }
085    
086        public String getType() {
087            return type;
088        }
089    
090        public void setTypeClass(Class typeClass) {
091            this.typeClass = typeClass;
092        }
093    
094        public Class getTypeClass() {
095            if (typeClass == null) {
096                Class clazz = createTypeClass();
097                if (clazz == null) {
098                    throw new RuntimeCamelException("Cannot load the class with the class name: " + getType());
099                }
100                setTypeClass(clazz);
101            }
102            return typeClass;
103        }
104        
105        // Fluent API
106        //-------------------------------------------------------------------------
107        /**
108         * Sets the type class that you want ConvertBodyType to covert
109         *
110         * @param typeClass  the type class that you want to covert body instance to
111         * @return the builder
112         */
113        public ConvertBodyDefinition typeClass(Class typeClass) {
114            setTypeClass(typeClass);
115            return this;
116        }
117        
118        /**
119         * Sets the type class name that you want to covert body instance to
120         *
121         * @param type  the type class name
122         * @return the builder
123         */
124        public ConvertBodyDefinition type(String type) {
125            setType(type);
126            return this;
127        }
128    }