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.core.xml;
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.XmlTransient;
023 import javax.xml.bind.annotation.XmlType;
024
025 import org.apache.camel.CamelContext;
026 import org.apache.camel.CamelContextAware;
027 import org.apache.camel.Endpoint;
028 import org.apache.camel.ProducerTemplate;
029 import org.apache.camel.impl.DefaultProducerTemplate;
030 import org.apache.camel.model.IdentifiedType;
031 import org.apache.camel.util.ServiceHelper;
032
033 /**
034 * A factory for creating a new {@link org.apache.camel.ProducerTemplate}
035 * instance with a minimum of XML
036 *
037 * @version $Revision: 934375 $
038 */
039 @XmlAccessorType(XmlAccessType.FIELD)
040 public abstract class AbstractCamelProducerTemplateFactoryBean extends IdentifiedType implements CamelContextAware {
041 @XmlTransient
042 private ProducerTemplate template;
043 @XmlAttribute(required = false)
044 private String defaultEndpoint;
045 @XmlAttribute
046 private String camelContextId;
047 @XmlTransient
048 private CamelContext camelContext;
049 @XmlAttribute
050 private Integer maximumCacheSize;
051
052 public void afterPropertiesSet() throws Exception {
053 if (camelContext == null && camelContextId != null) {
054 camelContext = getCamelContextWithId(camelContextId);
055 }
056 if (camelContext == null) {
057 throw new IllegalArgumentException("A CamelContext or a CamelContextId must be injected!");
058 }
059 }
060
061 protected abstract CamelContext getCamelContextWithId(String camelContextId);
062
063 public Object getObject() throws Exception {
064 CamelContext context = getCamelContext();
065 if (defaultEndpoint != null) {
066 Endpoint endpoint = context.getEndpoint(defaultEndpoint);
067 if (endpoint == null) {
068 throw new IllegalArgumentException("No endpoint found for URI: " + defaultEndpoint);
069 } else {
070 template = new DefaultProducerTemplate(context, endpoint);
071 }
072 } else {
073 template = new DefaultProducerTemplate(context);
074 }
075
076 // set custom cache size if provided
077 if (maximumCacheSize != null) {
078 template.setMaximumCacheSize(maximumCacheSize);
079 }
080
081 // must start it so its ready to use
082 ServiceHelper.startService(template);
083 return template;
084 }
085
086 public Class getObjectType() {
087 return DefaultProducerTemplate.class;
088 }
089
090 public boolean isSingleton() {
091 return true;
092 }
093
094 public void destroy() throws Exception {
095 ServiceHelper.stopService(template);
096 }
097
098 // Properties
099 // -------------------------------------------------------------------------
100 public CamelContext getCamelContext() {
101 return camelContext;
102 }
103
104 public void setCamelContext(CamelContext camelContext) {
105 this.camelContext = camelContext;
106 }
107
108 public String getDefaultEndpoint() {
109 return defaultEndpoint;
110 }
111
112 /**
113 * Sets the default endpoint URI used by default for sending message exchanges
114 */
115 public void setDefaultEndpoint(String defaultEndpoint) {
116 this.defaultEndpoint = defaultEndpoint;
117 }
118
119 public String getCamelContextId() {
120 return camelContextId;
121 }
122
123 public void setCamelContextId(String camelContextId) {
124 this.camelContextId = camelContextId;
125 }
126
127 public Integer getMaximumCacheSize() {
128 return maximumCacheSize;
129 }
130
131 public void setMaximumCacheSize(Integer maximumCacheSize) {
132 this.maximumCacheSize = maximumCacheSize;
133 }
134
135
136 }