private void level2level3catalog( RadarType radarType, String pathInfo, PrintWriter pw, HttpServletRequest req, HttpServletResponse res) throws IOException { try { String type; if (pathInfo.contains("level2")) type = radarType.toString() + "/level2"; else type = radarType.toString() + "/level3"; ByteArrayOutputStream os = new ByteArrayOutputStream(10000); InvCatalogFactory factory = InvCatalogFactory.getDefaultFactory(false); factory.writeXML(cat, os, true); InvCatalogImpl tCat = factory.readXML(new ByteArrayInputStream(os.toByteArray()), catURI); Iterator parents = tCat.getDatasets().iterator(); while (parents.hasNext()) { ArrayList<InvDatasetImpl> delete = new ArrayList<InvDatasetImpl>(); InvDatasetImpl top = (InvDatasetImpl) parents.next(); Iterator tDatasets = top.getDatasets().iterator(); while (tDatasets.hasNext()) { InvDatasetImpl ds = (InvDatasetImpl) tDatasets.next(); if (ds instanceof InvDatasetScan) { InvDatasetScan ids = (InvDatasetScan) ds; if (ids.getPath() == null) continue; if (ids.getPath().contains(type)) { ids.setXlinkHref(ids.getPath() + "/dataset.xml"); } else { delete.add(ds); } } } // remove datasets for (InvDatasetImpl idi : delete) { top.removeDataset(idi); } } if (pathInfo.endsWith("xml")) { String catAsString = factory.writeXML(tCat); pw.println(catAsString); pw.flush(); } else { HtmlWriter.getInstance().writeCatalog(req, res, tCat, true); // show catalog as HTML } } catch (Throwable e) { log.error("RadarServer.level2level3catalog failed", e); if (!res.isCommitted()) res.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); } return; }
private void datasetInfoHtml( RadarType radarType, String pathInfo, PrintWriter pw, HttpServletResponse res) throws IOException { pathInfo = pathInfo.replace("/dataset.html", ""); pathInfo = pathInfo.replace("/catalog.html", ""); Element root = new Element("RadarNexrad"); Document doc = new Document(root); if (pathInfo.startsWith("/")) pathInfo = pathInfo.substring(1); for (int i = 0; i < datasets.size(); i++) { InvDatasetScan ds = (InvDatasetScan) datasets.get(i); if (!(pathInfo.equals(ds.getPath()))) { continue; } // at this point a valid dataset // fix the location root.setAttribute("location", "/thredds/radarServer/" + ds.getPath()); // spatial range ThreddsMetadata.GeospatialCoverage gc = ds.getGeospatialCoverage(); LatLonRect bb = new LatLonRect(); gc.setBoundingBox(bb); String north = Double.toString(gc.getLatNorth()); String south = Double.toString(gc.getLatSouth()); String east = Double.toString(gc.getLonEast()); String west = Double.toString(gc.getLonWest()); Element LatLonBox = new Element("LatLonBox"); LatLonBox.addContent(new Element("north").addContent(north)); LatLonBox.addContent(new Element("south").addContent(south)); LatLonBox.addContent(new Element("east").addContent(east)); LatLonBox.addContent(new Element("west").addContent(west)); root.addContent(LatLonBox); // get the time range Element timeSpan = new Element("TimeSpan"); CalendarDateRange dr = ds.getCalendarDateCoverage(); timeSpan.addContent(new Element("begin").addContent(dr.getStart().toString())); timeSpan.addContent(new Element("end").addContent(dr.getEnd().toString())); root.addContent(timeSpan); ThreddsMetadata.Variables cvs = (ThreddsMetadata.Variables) ds.getVariables().get(0); List vl = cvs.getVariableList(); for (int j = 0; j < vl.size(); j++) { ThreddsMetadata.Variable v = (ThreddsMetadata.Variable) vl.get(j); Element variable = new Element("variable"); variable.setAttribute("name", v.getName()); root.addContent(variable); } // add pointer to the station list XML /* Element stnList = new Element("stationList"); stnList.setAttribute("title", "Available Stations", XMLEntityResolver.xlinkNS); stnList.setAttribute("href", "/thredds/radarServer/"+ pathInfo +"/stations.xml", XMLEntityResolver.xlinkNS); root.addContent(stnList); */ // String[] stations = rns.stationsDS( dataLocation.get( ds.getPath() )); // rns.printStations( stations ); // add accept list Element a = new Element("AcceptList"); a.addContent(new Element("accept").addContent("xml")); a.addContent(new Element("accept").addContent("html")); root.addContent(a); } ServerMethods sm = new ServerMethods(log); InputStream xslt = sm.getInputStream(contentPath + getPath() + "radar.xsl", RadarServer.class); try { // what's wrong here xslt = getXSLT( "radar.xsl" ); XSLTransformer transformer = new XSLTransformer(xslt); Document html = transformer.transform(doc); XMLOutputter fmt = new XMLOutputter(Format.getPrettyFormat()); String infoString = fmt.outputString(html); res.setContentType("text/html; charset=iso-8859-1"); pw = res.getWriter(); pw.println(infoString); pw.flush(); } catch (Exception e) { log.error("radarServer reading " + contentPath + getPath() + "radar.xsl"); log.error("radarServer XSLTransformer problem for web form ", e); } finally { if (xslt != null) { try { xslt.close(); } catch (IOException e) { log.error("radarServer radar.xsl: error closing" + contentPath + getPath() + "radar.xsl"); } } } return; }
// get pathInfo and parmameters from servlet call public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException { PrintWriter pw = null; try { long startms = System.currentTimeMillis(); if (cat == null || rm.nexradList == null) { // something major wrong res.sendError( HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "radarServer Radar Station/Catalog initialization problem"); return; } // setup String pathInfo = req.getPathInfo(); if (pathInfo == null) pathInfo = ""; RadarType radarType = RadarType.nexrad; // default if (pathInfo.indexOf('/', 1) > 1) { String rt = pathInfo.substring(1, pathInfo.indexOf('/', 1)); radarType = RadarType.valueOf(rt); } // default is xml, assume errors will be recorded by logger from this point if (!pathInfo.endsWith("html")) { pw = res.getWriter(); res.setContentType("text/xml; charset=iso-8859-1"); // default } // radar query if (req.getQueryString() != null) { // log.debug("RadarServer query ="+ req.getQueryString() ); if (log.isDebugEnabled()) log.debug("<documentation>\n" + req.getQueryString() + "</documentation>\n"); rm.radarQuery(radarType, req, res, pw); if (log.isDebugEnabled()) log.debug("after doGet " + (System.currentTimeMillis() - startms)); pw.flush(); return; } // return radarCollections catalog xml or html if (pathInfo.startsWith("/catalog.xml") || pathInfo.startsWith("/dataset.xml")) { InvCatalogFactory factory = InvCatalogFactory.getDefaultFactory(false); // no validation String catAsString = factory.writeXML(cat); pw.println(catAsString); res.setStatus(HttpServletResponse.SC_OK); pw.flush(); return; } else if (pathInfo.startsWith("/catalog.html") || pathInfo.startsWith("/dataset.html")) { try { int i = HtmlWriter.getInstance().writeCatalog(req, res, cat, true); // show catalog as HTML } catch (Exception e) { log.error("Radar HtmlWriter failed ", e); res.sendError( HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "radarServer HtmlWriter error " + pathInfo); return; } return; } // level2 and level3 catalog/dataset if (pathInfo.contains("level2/catalog.") || pathInfo.contains("level3/catalog.") || pathInfo.contains("level2/dataset.") || pathInfo.contains("level3/dataset.")) { level2level3catalog(radarType, pathInfo, pw, req, res); return; } // return stations of dataset if (pathInfo.endsWith("stations.xml")) { pathInfo = pathInfo.replace("/stations.xml", ""); Element rootElem = new Element("stationsList"); Document doc = new Document(rootElem); doc = rm.stationsXML(radarType, doc, rootElem, pathInfo.substring(1)); XMLOutputter fmt = new XMLOutputter(Format.getPrettyFormat()); pw.println(fmt.outputString(doc)); pw.flush(); return; } // return specific dataset information, ie IDD if (pathInfo.endsWith("dataset.xml") || pathInfo.endsWith("catalog.xml")) { datasetInfoXml(radarType, pathInfo, pw); return; } // needs work nobody using it now // return Dataset information in html form format if (pathInfo.endsWith("dataset.html") || pathInfo.endsWith("catalog.html")) { datasetInfoHtml(radarType, pathInfo, pw, res); return; } // mal formed request with no exceptions res.sendError(HttpServletResponse.SC_NOT_FOUND); } catch (FileNotFoundException e) { if (!res.isCommitted()) res.sendError(HttpServletResponse.SC_NOT_FOUND); } catch (Throwable e) { log.error("RadarServer.doGet failed", e); if (!res.isCommitted()) res.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR); } } // end doGet