My 4th Camel Ride

Christina Lin

Now we are going to actually calculate the actual cost for the shares, create a Java bean by right click on the org.blogdemo.example under src/main/java. Select "New", "Class". 

And enter "MyBean" as the name of your class.

package org.blogdemo.example;
import java.util.HashMap;
public class MyBean {
 HashMap<String, Double> stockprice = new HashMap<String, Double>();
 public  MyBean(){stockpriceSetup();}
 public TradeOrder calculateCost(TradeOrder order){ 
    order.setCost(stockprice.get(order.getStockId())*order.getShares());
    System.out.println("Helloe! :["+order.getCost()+"]");
    return order;
 }
 private void stockpriceSetup(){
    stockprice.put("ABC", 10.55);
    stockprice.put("XYZ", 33.70);
    stockprice.put("KUJ", 100.20);
    stockprice.put("SOU", 3.50);
 }
}

Register your bean by adding it to your camel context

<bean id="costAdvisor" class="org.blogdemo.example.MyBean" />

Reference the bean that does calculation in your route by removing the links between data transformation and choice

DO NOT SAVE YET !!!!

• File Endpoint
  • uri: file://myxml?delete=true 
• Log Endpoint
  • Message: ${in.header.CamelFileName} with content -> ${body}
• Data Transformation
  • .......
• Bean
  • Method: calculateCost
  • Bean Name: costAdvisor

Link the new bean node in between ref:transOrder and choice nodes.

SAVE.

• Choice
  • When
    • language: simple
    • expression ${body.vip} >= 3
  • SetHeader
    • headerName: CamelFileName
    • language: simple
    • expression: ${date:now:yyyyMMddhhmmss}-read.json
  • Marshal
    • Libaray :Jackson
    • marshalTypeName: org.blogdemo.example.TradeOrder
  • End Point
    • uri: file://donexml

Log

Log

•  
  • Otherwise
  • SetHeader
    • headerName: CamelFileName
    • language: simple
    • expression: ${date:now:yyyyMMddhhmmss}-read.xml
  • Convert
    • type: java.lang.String
  • File Endpoint
    • uri: file://donexml

And now, we would like to send json content to a messaging queue.  Add AMQ bean registry into the container.

<bean id="activemq" class="org.apache.activemq.camel.component.ActiveMQComponent">
      <property name="brokerURL" 
              value="vm://localhost?broker.persistent=false"/>
      <property name="userName" value="admin"/>
      <property name="password" value="admin"/>
</bean>

Replace the File endpoint with AMQ Endpoint  

file://donejson to activemq:queue:vip

Modify A-MQ dependency in POM.xml

<dependency>
      <groupId>org.apache.activemq</groupId>
      <artifactId>activemq-camel</artifactId>
      <version>5.11.0.redhat-620133</version>
</dependency>

Remove the existing

file:donejson node

Run the application

See Appendix in Camel Ride 2 or 3 for testing xml files

4th Camel Ride completed!