I want to convert csv file to xml - apache-camel

Question

I want to convert csv file to xml and i want to send the converted xml file to a queue in activemq..Is there any sample code or any reference websites or blogs please help to find sample code for this program..

Answer 1

Use the Bindy and Xstream components. From http://workingwithqueues.blogspot.ch/2012/07/converting-csv-to-xml-with-camel-bindy.html (with a JMS endpoint instead of a file endpoint):
DataFormat bindy = new BindyCsvDataFormat("com.package.dto");
from("file://TEST?fileName=Employee.csv")
.unmarshal(bindy)
.marshal()
.xstream()
.to("jms:queue:FOO.BAR");
For connecting to JMS have a look at the JMS and ActiveMQ components.

Answer 2

package org.mycompany.conversion;
import java.util.List;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlElementWrapper;
import javax.xml.bind.annotation.XmlRootElement;
#XmlRootElement
#XmlAccessorType(XmlAccessType.FIELD)
public class Greeting {
#XmlElementWrapper(name = "Person")
#XmlElement(name = "persons")
private List<Person> persons;
public List<Person> getPerson() {
return persons;
}
public void setPerson(List<Person> persons) {
this.persons = persons;
}
}
========================================================================================
package org.mycompany.conversion;
import java.util.List;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import org.apache.camel.dataformat.bindy.annotation.CsvRecord;
import org.apache.camel.dataformat.bindy.annotation.DataField;
#XmlRootElement
#XmlAccessorType(XmlAccessType.FIELD)
#CsvRecord(separator = ",")
public class Person {
#DataField(pos = 1)
#XmlElement
private int id;
#DataField(pos = 2)
#XmlElement
private String name;
#DataField(pos = 3)
#XmlElement
private int age;
#Override
public String toString() {
return "Person [id=" + id + ", name=" + name + ", age=" + age + "]";
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}
======================================================================================
package org.mycompany.conversion;
import javax.xml.bind.JAXBContext;
import org.apache.camel.CamelContext;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.converter.jaxb.JaxbDataFormat;
import org.apache.camel.dataformat.bindy.csv.BindyCsvDataFormat;
import org.apache.camel.impl.DefaultCamelContext;
import org.apache.camel.spi.DataFormat;
public class CsvConversion {
public static void main(String[] args) throws Exception {
JaxbDataFormat xmlDataFormat = new JaxbDataFormat();
JAXBContext con = JAXBContext.newInstance(Greeting.class);
xmlDataFormat.setContext(con);
DataFormat bindy = new BindyCsvDataFormat(Person.class);
CamelContext context = new DefaultCamelContext();
context.addRoutes(new RouteBuilder() {
#Override
public void configure() throws Exception {
from("file:src/main/data/in/csv?noop=true").split().tokenize("\n").unmarshal(bindy)
// constanr(true):-aggregate all using same expression
.aggregate(constant(true), new AttachAggregation())
//mandatory after aggregate
.completionTimeout(100)//end after this gives problem
.marshal(xmlDataFormat).log("xml body is ${body}")
.to("file:src/main/data/in/xml?fileName=convertedXml.xml");// .aggregate(new
// AttachAggreagation());
}
});
context.start();
Thread.sleep(5000);
}
}
=========================================================================================
package org.mycompany.conversion;
import java.util.ArrayList;
import java.util.List;
import org.apache.camel.Exchange;
import org.apache.camel.processor.aggregate.AggregationStrategy;
public class AttachAggregation implements AggregationStrategy {
List<Person> list = new ArrayList();
Greeting gre = new Greeting();
#Override
//person-address
// greeting-user
public Exchange aggregate(Exchange oldExchange, Exchange newExchange) {
if (oldExchange == null) {
Person newBody1 = newExchange.getIn().getBody(Person.class);
list.add(newBody1);
return newExchange;
} else {
Person newBody2 = newExchange.getIn().getBody(Person.class);
list.add(newBody2);
gre.setPerson(list);
oldExchange.getIn().setBody(gre);
return oldExchange;
}
}
}