@Override
public void execute(HttpServletRequest req, HttpServletResponse resp, ConfigService configService)
throws IOException {
logger.debug("Getting PV's matching wildcard or regex for this appliance.");
int limit = 500;
String limitParam = req.getParameter("limit");
if (limitParam != null) {
limit = Integer.parseInt(limitParam);
}
String nameToMatch = null;
if (req.getParameter("regex") != null) {
nameToMatch = req.getParameter("regex");
logger.debug("Finding PV's for regex " + nameToMatch);
}
if (req.getParameter("pv") != null) {
nameToMatch = req.getParameter("pv");
nameToMatch = nameToMatch.replace("*", ".*");
nameToMatch = nameToMatch.replace("?", ".");
logger.debug("Finding PV's for glob (converted to regex)" + nameToMatch);
}
Set<String> pvNamesMatchingRegex = configService.getPVsForApplianceMatchingRegex(nameToMatch);
LinkedList<String> pvNames = new LinkedList<String>();
if (limit == -1) {
pvNames.addAll(pvNamesMatchingRegex);
} else {
int pvCount = 0;
for (String matchedName : pvNamesMatchingRegex) {
pvNames.add(matchedName);
pvCount++;
if (pvCount >= limit) break;
}
}
resp.setContentType(MimeTypeConstants.APPLICATION_JSON);
try (PrintWriter out = resp.getWriter()) {
out.println(JSONValue.toJSONString(pvNames));
} catch (Exception ex) {
logger.error(
"Exception getting all pvs on appliance "
+ configService.getMyApplianceInfo().getIdentity(),
ex);
resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
}
}
