For anyone else who comes across this later, the solution was as Thierry
suggested, however, we needed to use a custom BoundedInputStream which would
throw a ResourceException when the max length was exceeded.
Filter filter = new Filter(getContext(), router) {
@Override
protected int beforeHandle(Request request, Response response) {
Series<Header> params = (Series<Header>)
request.getAttributes().get("org.restlet.http.headers");
long length = HeaderUtils.getContentLength(params);
if (length != Representation.UNKNOWN_SIZE && length > MAX_CONTENTS_LENGTH) {
// TODO: report your error here
return STOP;
}
if (request.isEntityAvailable()) {
request.setEntity(new WrapperRepresentation(request.getEntity()) {
@Override
public InputStream getStream() throws IOException {
InputStream result = super.getStream();
if (result != null) {
result = new BoundedInputStream(result, MAX_CONTENTS_LENGTH); //
TODO: this is our implementation which throws ResourceException when limit is
exceeded
}
return result;
}
@Override
public String getText() throws IOException {
return BioUtils.toString(getStream(), getCharacterSet());
}
});
}
return super.beforeHandle(request, response);
}
};
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