User Close

Search

THE DEVELOPER PORTAL FOR SOA

How to do REST invocation with Axis2/Java ServiceClient?

Axis2 ServiceClient enables one to invoke a service in a RESTfull manner, and that can be used to invoke a REST service as well. Let's see how this can be done.

Date: Sat, 17th Jun, 2006
Level:
Reads: 14328 Comments: 1 | Login or register to post comments

Eran Chinthaka
Software Engineer
WSO2 Inc.

chinthaka's picture

The difference between doing a SOAP invocation and a REST invocation depends on just one line (with default configuration). Just insert the following line of code:

 options.setProperty(Constants.Configuration.ENABLE_REST, Constants.VALUE_TRUE);

Let's see the complete code snippet.

Options options = new Options();
options.setTo(new EndpointReference(toEpr));

options.setProperty(Constants.Configuration.ENABLE_REST, Constants.VALUE_TRUE);
        
ServiceClient sender = new ServiceClient();
sender.setOptions(options);
OMElement result = sender.sendReceive(getPayload());

If you are invoking a Web service in RESTful manner, make sure the toEpr you give has all the information required to identify the operation and the service that you are invoking. The above code will invoke a resource using HTTP PUT method. To change it to use GET method simply set another option as shown below.

 
options.setProperty(Constants.Configuration.HTTP_METHOD,
Constants.Configuration.HTTP_METHOD_GET);

Can I change the content type of the request? Yes, you can.

 
options.setProperty(Constants.Configuration.CONTENT_TYPE, contentType);

The content type should be one of the following:

MEDIA_TYPE_X_WWW_FORM - application/x-www-form-urlencoded
MEDIA_TYPE_TEXT_XML - text/xml
MEDIA_TYPE_MULTIPART_RELATED - multipart/related
MEDIA_TYPE_APPLICATION_XML - application/xml

kamaldeep.tiainterweb.com's picture

Very helpful post.

Submitted by kamaldeep.tiain... on January 21, 2010 - 21:19.

Very helpful post.

Login or register to post comments

library project main code

Featured

In your cloud environment, if a user is consuming too much of your resources, either you have to control the user's behavior or scale up your resources to cater the situation and charge the user for consuming resources. If you decide to control the user, then, throttling is the answer for you...

WSO2 StratosLive is the public Platform as a Service (PaaS) from WSO2. With its lean, complete and 100% open source model, StratosLive holds key attributes to become competitively prominent in the enterprise cloud space...

Messaging is used with distributed computing to achieve asynchronous communication. An Event is a change of state in a software system. Eventing is referred to as propagating messages which contain those event information through publish and subscribe...

Patterns are essential ingredients for architects when building solutions since patterns make solutions more stable as well as clean. It is important to pick the correct pattern based on the problem or the use-case that is implemented by a solution...

WSO2 Carbon Studio immensely simplifies SOA development by providing a complete Eclipse IDE for service/application development, deployment and execution. This article explains Carbon Studio and its benefits...

Popular Content

Developing Web Services Using Apache Axis2 Eclipse Plugins - Part 1 (455878 reads)
How to Embed an Axis2 based Web Service in your Webapp? (104674 reads)
Hello World with Apache Axis2 (102528 reads)
Web Services Security with Apache Rampart – Part 1 ( Transport Level Security ) (96090 reads)
Downloading a Binary File from a Web Service using Axis2 and SOAP with Attachments (91178 reads)
Developing Web Services Using Apache Axis2 Eclipse Plugins - Part 2 (84642 reads)
Writing Your Own services.xml for Axis2 Web Services (80039 reads)
Reference Guide to Apache Axis2 Client API Parameters (72596 reads)

Learn Cloud

Learn

Cloud

The WSO2 Application Server is a reliable application server that can host your enterprise web applications. The WSO2 Application Server as a Service is offered in StratosLive, the WSO2 Platform as a Service. This article explains how a simple web application can be developed and deployed from Carbon Studio to the WSO2 Application Server...

Latest Webinar

Different groups within an organization need to monitor different Key Performance Indicators (KPIs) - An operations team will be interested in the response times of business services and loads of each service,..

Thursday, February 9th 2012, 09.00 AM (PST)

Thursday, February 9th 2012, 10.00 AM (GMT)

Tags

transports WS-Eventing WS-* WS-Policy WS-ReliableMessaging WS-PolicyAttachment Web services WS-Trust WS-Policy WS-Security