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 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.Endpoint;
026 import org.apache.camel.spi.RouteContext;
027 import org.apache.camel.util.ObjectHelper;
028
029 /**
030 * Represents an XML <from/> element
031 *
032 * @version $Revision: 750806 $
033 */
034 @XmlRootElement(name = "from")
035 @XmlAccessorType(XmlAccessType.FIELD)
036 public class FromDefinition extends OptionalIdentifiedType<FromDefinition> {
037 @XmlAttribute
038 private String uri;
039 @XmlAttribute
040 private String ref;
041 @XmlTransient
042 private Endpoint endpoint;
043
044 public FromDefinition() {
045 }
046
047 public FromDefinition(String uri) {
048 setUri(uri);
049 }
050
051 public FromDefinition(Endpoint endpoint) {
052 this.endpoint = endpoint;
053 }
054
055 @Override
056 public String toString() {
057 return "From[" + getLabel() + "]";
058 }
059
060 @Override
061 public String getShortName() {
062 return "from";
063 }
064
065
066 public String getLabel() {
067 return description(getUri(), getRef(), getEndpoint());
068 }
069
070 public Endpoint resolveEndpoint(RouteContext context) {
071 if (endpoint == null) {
072 endpoint = context.resolveEndpoint(getUri(), getRef());
073 }
074 return endpoint;
075 }
076
077 // Properties
078 // -----------------------------------------------------------------------
079 public String getUri() {
080 return uri;
081 }
082
083 /**
084 * Sets the URI of the endpoint to use
085 *
086 * @param uri the endpoint URI to use
087 */
088 public void setUri(String uri) {
089 this.uri = uri;
090 clear();
091 }
092
093 public String getRef() {
094 return ref;
095 }
096
097 /**
098 * Sets the name of the endpoint within the registry (such as the Spring
099 * ApplicationContext or JNDI) to use
100 *
101 * @param ref the reference name to use
102 */
103 public void setRef(String ref) {
104 this.ref = ref;
105 clear();
106 }
107
108 public Endpoint getEndpoint() {
109 return endpoint;
110 }
111
112 public void setEndpoint(Endpoint endpoint) {
113 this.endpoint = endpoint;
114 }
115
116 /**
117 * Returns the endpoint URI or the name of the reference to it
118 */
119 public Object getUriOrRef() {
120 if (ObjectHelper.isEmpty(uri)) {
121 return uri;
122 } else if (endpoint != null) {
123 return endpoint.getEndpointUri();
124 }
125 return ref;
126 }
127
128 // Implementation methods
129 // -----------------------------------------------------------------------
130 protected static String description(String uri, String ref, Endpoint endpoint) {
131 if (ref != null) {
132 return "ref:" + ref;
133 } else if (endpoint != null) {
134 return endpoint.getEndpointUri();
135 } else if (uri != null) {
136 return uri;
137 } else {
138 return "no uri or ref supplied!";
139 }
140 }
141
142 protected void clear() {
143 this.endpoint = null;
144 }
145
146 }