public void init() throws javax.servlet.ServletException {
super.init();
org.slf4j.Logger logServerStartup = org.slf4j.LoggerFactory.getLogger("serverStartup");
logServerStartup.info(
getClass().getName() + " initialization start - " + UsageLog.setupNonRequestContext());
this.ascLimit = ThreddsConfig.getInt("Opendap.ascLimit", ascLimit);
this.binLimit = ThreddsConfig.getInt("Opendap.binLimit", binLimit);
this.odapVersionString = ThreddsConfig.get("Opendap.serverVersion", odapVersionString);
logServerStartup.info(
getClass().getName()
+ " version= "
+ odapVersionString
+ " ascLimit = "
+ ascLimit
+ " binLimit = "
+ binLimit);
// debugging actions
makeDebugActions();
logServerStartup.info(
getClass().getName()
+ " initialization done - "
+ UsageLog.closingMessageNonRequestContext());
}
/**
* Query RadarServer controller for Spring Framework
*
* @param request HttpServletRequest
* @param response HttpServletResponse
* @return ModelAndView
* @throws Exception
*/
protected ModelAndView handleRequestInternal(
HttpServletRequest request, HttpServletResponse response) throws Exception {
try {
// Gather diagnostics for logging request.
log.info("handleRequestInternal(): " + UsageLog.setupRequestContext(request));
// catch rogue invalid request here
if (request.getQueryString() == null) {
log.info("Invalid dataset url reference " + request.getPathInfo());
throw new RadarServerException("Invalid dataset url reference " + request.getPathInfo());
}
// Query results in model
Map<String, Object> model = new HashMap<String, Object>();
radarQuery(request, response, model);
if (model == null || model.size() == 0) {
ModelAndView mav = new ModelAndView(CREATE_VIEW);
mav.addObject(MODEL_KEY, MSG_CODE);
return mav;
} else {
return new ModelAndView("queryXml", model);
}
} catch (RadarServerException e) {
throw e; // pass it onto Spring exceptionResolver
} catch (Throwable e) {
log.error("handleRequestInternal(): Problem handling request.", e);
log.info(
"handleRequestInternal(): "
+ UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_BAD_REQUEST, -1));
throw new RadarServerException("handleRequestInternal(): Problem handling request.");
}
}
private void sendErrorResponse(HttpServletResponse response, int errorCode, String errorMessage) {
try {
log.info(UsageLog.closingMessageForRequestContext(errorCode, -1));
response.setStatus(errorCode);
response.setHeader("Content-Description", "dods-error");
response.setContentType("text/plain");
PrintWriter pw = new PrintWriter(response.getOutputStream());
pw.println("Error {");
pw.println(" code = " + errorCode + ";");
pw.println(" message = \"" + errorMessage + "\";");
pw.println("};");
pw.flush();
} catch (Exception e) {
System.err.println("sendErrorResponse: " + e);
}
}
public void doGet(HttpServletRequest request, HttpServletResponse response) {
log.info("doGet(): " + UsageLog.setupRequestContext(request));
// System.out.printf("opendap doGet: req=%s%n%s%n", ServletUtil.getRequest(request),
// ServletUtil.showRequestDetail(this, request));
String path = null;
ReqState rs = getRequestState(request, response);
try {
path = request.getPathInfo();
log.debug("doGet path={}", path);
if (thredds.servlet.Debug.isSet("showRequestDetail"))
log.debug(ServletUtil.showRequestDetail(this, request));
if (path == null) {
log.info(
"doGet(): "
+ UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_NOT_FOUND, -1));
response.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
if (baseURI == null) { // first time, set baseURI
URI reqURI = ServletUtil.getRequestURI(request);
// Build base URI from request (rather than hard-coding "/thredds/dodsC/").
String baseUriString = request.getContextPath() + request.getServletPath() + "/";
baseURI = reqURI.resolve(baseUriString);
log.debug("doGet(): baseURI was set = {}", baseURI);
}
if (path.endsWith("latest.xml")) {
DataRootHandler.getInstance().processReqForLatestDataset(this, request, response);
return;
}
// Redirect all catalog requests at the root level.
if (path.equals("/") || path.equals("/catalog.html") || path.equals("/catalog.xml")) {
ServletUtil.sendPermanentRedirect(ServletUtil.getContextPath() + path, request, response);
return;
}
// Make sure catalog requests match a dataRoot before trying to handle.
if (path.endsWith("/") || path.endsWith("/catalog.html") || path.endsWith("/catalog.xml")) {
if (!DataRootHandler.getInstance().hasDataRootMatch(path)) {
log.info(
"doGet(): "
+ UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_NOT_FOUND, -1));
response.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
if (!DataRootHandler.getInstance().processReqForCatalog(request, response))
log.error(
"doGet(): "
+ UsageLog.closingMessageForRequestContext(
ServletUtil.STATUS_FORWARD_FAILURE, -1));
return;
}
if (rs != null) {
String dataSet = rs.getDataSet();
String requestSuffix = rs.getRequestSuffix();
if ((dataSet == null) || dataSet.equals("/") || dataSet.equals("")) {
doGetDIR(rs);
} else if (requestSuffix.equalsIgnoreCase("blob")) {
doGetBLOB(rs);
} else if (requestSuffix.equalsIgnoreCase("close")) {
doClose(rs);
} else if (requestSuffix.equalsIgnoreCase("dds")) {
doGetDDS(rs);
} else if (requestSuffix.equalsIgnoreCase("das")) {
doGetDAS(rs);
} else if (requestSuffix.equalsIgnoreCase("ddx")) {
doGetDDX(rs);
} else if (requestSuffix.equalsIgnoreCase("dods")) {
doGetDAP2Data(rs);
} else if (requestSuffix.equalsIgnoreCase("asc")
|| requestSuffix.equalsIgnoreCase("ascii")) {
doGetASC(rs);
} else if (requestSuffix.equalsIgnoreCase("info")) {
doGetINFO(rs);
} else if (requestSuffix.equalsIgnoreCase("html")
|| requestSuffix.equalsIgnoreCase("htm")) {
doGetHTML(rs);
} else if (requestSuffix.equalsIgnoreCase("ver")
|| requestSuffix.equalsIgnoreCase("version")
|| dataSet.equalsIgnoreCase("/version")
|| dataSet.equalsIgnoreCase("/version/")) {
doGetVER(rs);
} else if (dataSet.equalsIgnoreCase("/help")
|| dataSet.equalsIgnoreCase("/help/")
|| dataSet.equalsIgnoreCase("/" + requestSuffix)
|| requestSuffix.equalsIgnoreCase("help")) {
doGetHELP(rs);
} else {
sendErrorResponse(response, HttpServletResponse.SC_BAD_REQUEST, "Unrecognized request");
return;
}
} else {
sendErrorResponse(response, HttpServletResponse.SC_BAD_REQUEST, "Unrecognized request");
return;
}
log.info(UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_OK, -1));
// plain ol' 404
} catch (FileNotFoundException e) {
sendErrorResponse(response, HttpServletResponse.SC_NOT_FOUND, e.getMessage());
// DAP2Exception bad url
} catch (BadURLException e) {
log.info(UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_BAD_REQUEST, -1));
response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
dap2ExceptionHandler(e, rs);
// all other DAP2Exception
} catch (DAP2Exception de) {
int status =
(de.getErrorCode() == DAP2Exception.NO_SUCH_FILE)
? HttpServletResponse.SC_NOT_FOUND
: HttpServletResponse.SC_BAD_REQUEST;
if ((de.getErrorCode() != DAP2Exception.NO_SUCH_FILE) && (de.getErrorMessage() != null))
log.debug(de.getErrorMessage());
log.info(UsageLog.closingMessageForRequestContext(status, -1));
response.setStatus(status);
dap2ExceptionHandler(de, rs);
// parsing, usually the CE
} catch (ParseException pe) {
log.info(UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_BAD_REQUEST, -1));
response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
parseExceptionHandler(pe, response);
// 403 - request too big
} catch (UnsupportedOperationException e) {
sendErrorResponse(response, HttpServletResponse.SC_FORBIDDEN, e.getMessage());
} catch (java.net.SocketException e) {
log.info("SocketException: " + e.getMessage(), e);
log.info(UsageLog.closingMessageForRequestContext(ServletUtil.STATUS_CLIENT_ABORT, -1));
} catch (IOException e) {
String eName =
e.getClass().getName(); // dont want compile time dependency on ClientAbortException
if (eName.equals("org.apache.catalina.connector.ClientAbortException")) {
log.debug("ClientAbortException: " + e.getMessage());
log.info(UsageLog.closingMessageForRequestContext(ServletUtil.STATUS_CLIENT_ABORT, -1));
return;
}
log.error("path= " + path, e);
sendErrorResponse(response, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage());
// everything else
} catch (Throwable t) {
log.error("path= " + path, t);
t.printStackTrace();
sendErrorResponse(response, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, t.getMessage());
}
}
/*
Final Output format, save information in DatasetEntry de
<dataset name="Level2_KFTG_20100121_0000.ar2v" ID="735519521"
urlPath="KFTG/20100121/Level2_KFTG_20100121_0000.ar2v">
<date type="start of ob">2010-01-21T00:00:00</date>
</dataset>
*/
private Boolean processQuery(
String dataset, QueryParams qp, String var, List<DatasetEntry> entries)
throws RadarServerException {
Boolean getAllTimes = true;
String yyyymmddStart = null;
String yyyymmddEnd = null;
String dateStart = null;
String dateEnd = null;
try {
if (!qp.time_start.equals(epicDateType)) {
getAllTimes = false;
yyyymmddStart = qp.time_start.toDateString();
yyyymmddStart = yyyymmddStart.replace("-", "");
yyyymmddEnd = qp.time_end.toDateString();
yyyymmddEnd = yyyymmddEnd.replace("-", "");
dateStart = yyyymmddStart + "_" + RadarServerUtil.hhmm(qp.time_start.toDateTimeString());
dateEnd = yyyymmddEnd + "_" + RadarServerUtil.hhmm(qp.time_end.toDateTimeString());
}
RadarDatasetCollection rdc = DatasetRepository.getRadarDatasetCollection(dataset, var);
if (rdc == null) {
qp.errs.append("Invalid dataset =").append(dataset);
qp.errs.append(" or var =").append(var);
return false;
}
StringBuffer time = new StringBuffer();
StringBuffer product = new StringBuffer();
StringBuffer url = new StringBuffer();
boolean isLevel2 = dataset.contains("level2");
String type = (isLevel2 ? "Level2" : "Level3");
String suffix = (isLevel2 ? ".ar2v" : ".nids");
Calendar cal = Calendar.getInstance(java.util.TimeZone.getTimeZone("GMT"));
Date now = cal.getTime();
String currentDay = dateFormat.format(now);
for (String stn : qp.stns) {
RadarStationCollection rsc = rdc.queryStation(stn, currentDay);
if (rsc == null) continue;
for (String day : rsc.getDays()) {
// check for valid day
if (!getAllTimes && !RadarServerUtil.isValidDay(day, yyyymmddStart, yyyymmddEnd))
continue;
ArrayList<String> tal;
if (rdc.isCaseStudy()) { //
tal = rsc.getHourMinute("all");
for (String prod : tal) {
// check times
if (!getAllTimes && !RadarServerUtil.isValidDate(prod, dateStart, dateEnd)) continue;
// save this entry
DatasetEntry de = new DatasetEntry();
int idx = prod.indexOf('/');
if (idx > 0) {
de.setName(prod.substring(idx + 1));
} else {
de.setName(prod);
}
de.setID(Integer.toString(prod.hashCode()));
url.setLength(0);
url.append(stn).append("/");
if (var != null) {
url.append(var).append("/");
}
url.append(prod);
de.setUrlPath(url.toString());
de.setDate(RadarServerUtil.getObTimeISO(prod));
entries.add(de);
}
continue;
} else {
tal = rsc.getHourMinute(day);
}
if (tal == null) continue;
for (String hm : tal) {
time.setLength(0);
time.append(day).append("_").append(hm);
if (!getAllTimes && !RadarServerUtil.isValidDate(time.toString(), dateStart, dateEnd))
continue;
// save this entry
DatasetEntry de = new DatasetEntry();
product.setLength(0);
product.append(type).append("_").append(rsc.getStnName()).append("_");
if (!isLevel2) product.append(var).append("_");
product.append(day).append("_").append(hm).append(suffix);
de.setName(product.toString());
de.setID(Integer.toString(product.toString().hashCode()));
url.setLength(0);
if (!isLevel2) {
url.append(var).append("/");
}
url.append(rsc.getStnName())
.append("/")
.append(day)
.append("/")
.append(product.toString());
de.setUrlPath(url.toString());
de.setDate(RadarServerUtil.getObTimeISO(product.toString()));
entries.add(de);
if (qp.hasTimePoint) break;
}
if (qp.hasTimePoint) break;
}
}
return true;
} catch (Throwable e) {
log.error("Invalid dataset =" + dataset + " or var =" + var, e);
log.info(
"handleRequestInternal(): "
+ UsageLog.closingMessageForRequestContext(HttpServletResponse.SC_BAD_REQUEST, -1));
throw new RadarServerException("Invalid dataset =" + dataset + " or var =" + var);
}
}