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.component.dataformat;
018
019 import org.apache.camel.AsyncCallback;
020 import org.apache.camel.Component;
021 import org.apache.camel.Consumer;
022 import org.apache.camel.Exchange;
023 import org.apache.camel.Processor;
024 import org.apache.camel.Producer;
025 import org.apache.camel.impl.DefaultAsyncProducer;
026 import org.apache.camel.impl.DefaultEndpoint;
027 import org.apache.camel.processor.MarshalProcessor;
028 import org.apache.camel.processor.UnmarshalProcessor;
029 import org.apache.camel.spi.DataFormat;
030 import org.apache.camel.spi.UriEndpoint;
031 import org.apache.camel.spi.UriParam;
032 import org.apache.camel.util.ServiceHelper;
033
034 @UriEndpoint(scheme = "dataformat")
035 public class DataFormatEndpoint extends DefaultEndpoint {
036
037 private MarshalProcessor marshal;
038 private UnmarshalProcessor unmarshal;
039 @UriParam
040 private DataFormat dataFormat;
041 @UriParam
042 private String operation;
043
044 public DataFormatEndpoint() {
045 }
046
047 public DataFormatEndpoint(String endpointUri, Component component, DataFormat dataFormat) {
048 super(endpointUri, component);
049 this.dataFormat = dataFormat;
050 }
051
052 public DataFormat getDataFormat() {
053 return dataFormat;
054 }
055
056 public void setDataFormat(DataFormat dataFormat) {
057 this.dataFormat = dataFormat;
058 }
059
060 public String getOperation() {
061 return operation;
062 }
063
064 public void setOperation(String operation) {
065 this.operation = operation;
066 }
067
068 @Override
069 public Producer createProducer() throws Exception {
070 return new DefaultAsyncProducer(this) {
071 @Override
072 public boolean process(Exchange exchange, AsyncCallback callback) {
073 if (marshal != null) {
074 return marshal.process(exchange, callback);
075 } else {
076 return unmarshal.process(exchange, callback);
077 }
078 }
079
080 @Override
081 public String toString() {
082 return "DataFormatProducer[" + dataFormat + "]";
083 }
084 };
085 }
086
087 @Override
088 public Consumer createConsumer(Processor processor) throws Exception {
089 throw new UnsupportedOperationException("Cannot consume from data format");
090 }
091
092 @Override
093 public boolean isSingleton() {
094 return true;
095 }
096
097 @Override
098 protected void doStart() throws Exception {
099 if (operation.equals("marshal")) {
100 marshal = new MarshalProcessor(dataFormat);
101 marshal.setCamelContext(getCamelContext());
102 } else {
103 unmarshal = new UnmarshalProcessor(dataFormat);
104 unmarshal.setCamelContext(getCamelContext());
105 }
106
107 ServiceHelper.startServices(dataFormat, marshal, unmarshal);
108 super.doStart();
109 }
110
111 @Override
112 protected void doStop() throws Exception {
113 ServiceHelper.stopServices(marshal, unmarshal, dataFormat);
114 super.doStop();
115 }
116 }