String callback = request.getParameter("callback");
if (callback != null) {
writer.print(callback + "(");
}
DcatCache cache = DcatCache.getInstance();
InputStream cacheStream = null;
try {
cacheStream = cache.createInputCacheStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(cacheStream));
char[] buffer = new char[1024];
int length = -1;