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.spring;
018    
019    
020    import javax.xml.bind.annotation.XmlAccessType;
021    import javax.xml.bind.annotation.XmlAccessorType;
022    import javax.xml.bind.annotation.XmlAttribute;
023    import javax.xml.bind.annotation.XmlRootElement;
024    import javax.xml.bind.annotation.XmlTransient;
025    
026    import org.apache.camel.CamelContext;
027    import org.apache.camel.CamelContextAware;
028    import org.apache.camel.Endpoint;
029    import org.apache.camel.NoSuchEndpointException;
030    import org.apache.camel.model.IdentifiedType;
031    import org.springframework.beans.factory.FactoryBean;
032    
033    import static org.apache.camel.util.ObjectHelper.notNull;
034    
035    /**
036     * A {@link FactoryBean} which instantiates {@link Endpoint} objects
037     *
038     * @version $Revision: 641676 $
039     */
040    @XmlRootElement(name = "endpoint")
041    @XmlAccessorType(XmlAccessType.FIELD)
042    public class EndpointFactoryBean extends IdentifiedType implements FactoryBean, CamelContextAware {
043        @XmlAttribute
044        private String uri;
045        @XmlTransient
046        private CamelContext context;
047        @XmlTransient
048        private Endpoint endpoint;
049        @XmlTransient
050        private boolean singleton;
051    
052        public Object getObject() throws Exception {
053            if (endpoint == null) {
054                endpoint = createEndpoint();
055            }
056            return endpoint;
057        }
058    
059        public Class getObjectType() {
060            return Endpoint.class;
061        }
062    
063        public boolean isSingleton() {
064            return singleton;
065        }
066    
067        public CamelContext getCamelContext() {
068            return context;
069        }
070    
071        /**
072         * Sets the context to use to resolve endpoints
073         *
074         * @param context the context used to resolve endpoints
075         */
076        public void setCamelContext(CamelContext context) {
077            this.context = context;
078        }
079    
080        public Endpoint getEndpoint() {
081            return endpoint;
082        }
083    
084        public void setEndpoint(Endpoint endpoint) {
085            this.endpoint = endpoint;
086        }
087    
088        public void setSingleton(boolean singleton) {
089            this.singleton = singleton;
090        }
091    
092        public String getUri() {
093            return uri;
094        }
095    
096        /**
097         * Sets the URI to use to resolve the endpoint
098         *
099         * @param uri the URI used to set the endpoint
100         */
101        public void setUri(String uri) {
102            this.uri = uri;
103        }
104    
105        protected Endpoint createEndpoint() {
106            notNull(context, "context");
107            notNull(uri, "uri");
108            Endpoint endpoint = context.getEndpoint(uri);
109            if (endpoint == null) {
110                throw new NoSuchEndpointException(uri);
111            }
112            return endpoint;
113        }
114    }