I am implementing REST through RESTlet. This is an amazing framework to build such a restful web service; it is easy to learn, its syntax is compact. However, usually, I found that when somebody/someprogram want to access some resource, it takes time to print/output the XML, I use JaxbRepresentation. Let's see my code:
@Override
@Get
public Representation toXml() throws IOException {
if (this.requireAuthentication) {
if (!this.app.authenticate(getRequest(), getResponse()))
{
return new EmptyRepresentation();
}
}
//check if the representation already tried to be requested before
//and therefore the data has been in cache
Object dataInCache = this.app.getCachedData().get(getURI);
if (dataInCache != null) {
System.out.println("Representing from Cache");
//this is warning. unless we can check that dataInCache is of type T, we can
//get rid of this warning
this.dataToBeRepresented = (T)dataInCache;
} else {
System.out.println("NOT IN CACHE");
this.dataToBeRepresented = whenDataIsNotInCache();
//automatically add data to cache
this.app.getCachedData().put(getURI, this.dataToBeRepresented, cached_duration);
}
//now represent it (if not previously execute the EmptyRepresentation)
JaxbRepresentation<T> jaxb = new JaxbRepresentation<T>(dataToBeRepresented);
jaxb.setFormattedOutput(true);
return jaxb;
}
AS you can see, and you might asked me; yes I am implementing Cache through Kitty-Cache. So, if some XML that is expensive to produce, and really looks like will never change for 7 decades, then I will use cache... I also use it for likely static data. Maximum time limit for a cache is an hour to remain in memory.
Even when I cache the output, sometimes, output are irresponsive, like hang, printed partially, and takes time before it prints the remaining document. The XML document is accessible through browser and also program, it used GET.
What are actually the problem? I humbly would like to know also the answer from RESTlet developer, if possible. Thanks
