CODEWITHSUNDEEP
javaweb-servicesrestmemoryload
Kunal
Kunal

Reputation: 111

How to receive large XML files in REST web services

How do I re-design a high-load REST web service?

I have an existing Java-based REST web service that's receiving a XML file as a String. There are several clients that are sending XML files to this service. It turns out that large XML files (>100 MB) that being sent to this service as Strings, cause causing the web service to slow down, freeze and crash (OutOfMemory).

How can I modify the web service to receive and handle large XML data, without affecting the existing clients?

This is what the existing web service signature is:

@POST
@Path("/acceptMessage")
public String acceptMessage(String request) throws Exception;

The "String request" is causing the load/performance problems. Any changes that I make to the web service signature cannot affect the existing web service clients.

What are my options?

Upvotes: 1

Views: 1943

Answers (1)

VGR
VGR

Reputation: 44355

Change the String request parameter to Reader request. According to section 4.2.4 of the JAX-RS specification, it could also be File request. And there are a number of other valid types which you may or may not find useful:

  • javax.activation.DataSource All media types (/).
  • javax.xml.transform.Source XML types (text/xml, application/xml and application/*+xml).
  • javax.xml.bind.JAXBElement and application-supplied JAXB classes XML media types (text/xml, application/xml and application/*+xml).

Upvotes: 1

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