Working with SOA services

Creating the weather service definition

Learning activity

To create the weather service definition:

1. In NexJ Studio, create a new Service Definition using the File > New > SOA Definition menu options and name it training:Weather. 

2. In the Source tab, drag and drop or enter the following code:

   XML

   <SOADefinition name="training:weather">
      <Service>
         <Interfaces>
            <Interface default="true" ref="main"/>
         </Interfaces>
      </Service>
      <Interfaces>
         <Interface name="main">
            <Method name="getWeather">
               <Arguments>
                  <Argument name="cityName" type="string"/>
               </Arguments>
               <Result type="weatherResult"/>
            </Method>
         </Interface>
      </Interfaces>
      <Types>
         <Type name="weatherResult">
            <Attributes>
               <Attribute name="tempurature" type="decimal"/>
            </Attributes>
         </Type>
      </Types>
      <Bindings>
         <Binding protocol="trpc"/>
         <Binding protocol="soap"/>
      </Bindings>
   </SOADefinition>
   

   
   

3. In the Interfaces tab, create a new interface called main.

4. Add a method called Creating the Weather Service Implementation.
   

Creating the Weather Service implementation

Learning activity

To create the Weather Service implementation:

1. In NexJ Studio, create a new implementation using the File > New > SOA Implementation menu options, and enter the name: training:Weather. 

2. In the Source tab, drag and drop or enter the following code:

   XML

   <SOAImplementation service="training:weather:1.0">
      <Interface name="main">
         <Method args="cityName" name="getWeather">
            <Script><![CDATA[(:: training:weather:1.0:type:weatherResult
      :tempurature  
      (case cityName
         (("Toronto" "Chicago" "New York") -5)
         (("Milan" "Madrid" "Barcelona") 7)
         (("Dheli" "Sydney") 24)
         (else 20)
      )
   )]]></Script>
         </Method>
      </Interface>
   </SOAImplementation>
   
   

   
   

Adding the service to the environment file

Learning activity

1. In your environment file, add the following code in the SOAConnections section.

   XML

   <SOAConnection auth="perimeter" binding="context" service="training:weather:1.0"/>
   

   
   

2. See if you can access the WSDL for the service at http://localhost:7080/training/soa/training:weather:1.0/soap?wsdl.

You'll have the opportunity to try the service in the next learning module.