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 import javax.xml.bind.annotation.XmlAccessType;
020 import javax.xml.bind.annotation.XmlAccessorType;
021 import javax.xml.bind.annotation.XmlAttribute;
022 import javax.xml.bind.annotation.XmlRootElement;
023 import javax.xml.bind.annotation.XmlTransient;
024
025 import org.apache.camel.CamelContext;
026 import org.apache.camel.CamelContextAware;
027 import org.apache.camel.Endpoint;
028 import org.apache.camel.NoSuchEndpointException;
029 import org.apache.camel.model.IdentifiedType;
030 import org.apache.camel.spring.util.CamelContextResolverHelper;
031 import org.springframework.beans.BeansException;
032 import org.springframework.beans.factory.FactoryBean;
033 import org.springframework.context.ApplicationContext;
034 import org.springframework.context.ApplicationContextAware;
035
036 import static org.apache.camel.util.ObjectHelper.notNull;
037
038 /**
039 * A {@link FactoryBean} which instantiates {@link Endpoint} objects
040 *
041 * @version $Revision: 941822 $
042 */
043 @XmlRootElement(name = "endpoint")
044 @XmlAccessorType(XmlAccessType.FIELD)
045 public class CamelEndpointFactoryBean extends IdentifiedType implements FactoryBean, CamelContextAware, ApplicationContextAware {
046 @XmlAttribute
047 private String uri;
048 @XmlAttribute
049 private String camelContextId;
050 @XmlTransient
051 private CamelContext context;
052 @XmlTransient
053 private Endpoint endpoint;
054 @XmlTransient
055 private ApplicationContext applicationContext;
056
057 public Object getObject() throws Exception {
058 if (endpoint == null) {
059 endpoint = createEndpoint();
060 }
061 return endpoint;
062 }
063
064 public Class getObjectType() {
065 return Endpoint.class;
066 }
067
068 public boolean isSingleton() {
069 return true;
070 }
071
072 public CamelContext getCamelContext() {
073 return context;
074 }
075
076
077 /**
078 * Sets the context to use to resolve endpoints
079 *
080 * @param context the context used to resolve endpoints
081 */
082 public void setCamelContext(CamelContext context) {
083 this.context = context;
084 }
085
086 public String getUri() {
087 return uri;
088 }
089
090 /**
091 * Sets the URI to use to resolve the endpoint
092 *
093 * @param uri the URI used to set the endpoint
094 */
095 public void setUri(String uri) {
096 this.uri = uri;
097 }
098
099 protected Endpoint createEndpoint() {
100 if (context == null && camelContextId != null) {
101 context = CamelContextResolverHelper.getCamelContextWithId(applicationContext, camelContextId);
102 }
103 notNull(context, "context");
104 notNull(uri, "uri");
105
106 Endpoint endpoint = context.getEndpoint(uri);
107 if (endpoint == null) {
108 throw new NoSuchEndpointException(uri);
109 }
110 return endpoint;
111 }
112
113 public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
114 this.applicationContext = applicationContext;
115 }
116
117 public void setCamelContextId(String camelContextId) {
118 this.camelContextId = camelContextId;
119 }
120
121 }