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.CamelException;
029    import org.apache.camel.Processor;
030    import org.apache.camel.impl.RouteContext;
031    import org.apache.camel.processor.ThrowFaultProcessor;
032    
033    @XmlRootElement(name = "throwFault")
034    @XmlAccessorType(XmlAccessType.FIELD)
035    public class ThrowFaultType extends ProcessorType<ThrowFaultType> {
036        @XmlTransient
037        private Throwable fault;
038        @XmlTransient
039        private Processor processor;
040        @XmlAttribute (required = true)
041        private String faultRef;
042    
043        public ThrowFaultType() {
044    
045        }
046    
047        public void setFault(Throwable fault) {
048            this.fault = fault;
049        }
050    
051        public Throwable getFault() {
052            return fault;
053        }
054    
055        public void setFaultRef(String ref) {
056            this.faultRef = ref;
057        }
058    
059        public String getFaultRef() {
060            return faultRef;
061        }
062    
063        @Override
064        public Processor createProcessor(RouteContext routeContext) {
065    
066            if (processor == null) {
067                if (fault == null) {
068                    fault = routeContext.lookup(faultRef, Throwable.class);
069                    if (fault == null) {
070                        // can't find the fault instance, create a new one
071                        fault = new CamelException(faultRef);
072                    }
073                }
074                processor = new ThrowFaultProcessor(fault);
075            }
076            return processor;
077        }
078    
079        @Override
080        public List<ProcessorType<?>> getOutputs() {
081            return Collections.EMPTY_LIST;
082        }
083    }