Esempio n. 1
0
  public void init() throws ServletException {
    super.init();
    // allow = ThreddsConfig.getBoolean("NetcdfSubsetService.allow", true);
    // String radarLevel2Dir = ThreddsConfig.get("NetcdfSubsetService.radarLevel2DataDir",
    // "/data/ldm/pub/native/radar/level2/");
    // if (!allow) return;
    contentPath = ServletUtil.getContentPath();
    rm = new RadarMethods(contentPath, logServerStartup);

    // read in radarCollections.xml catalog
    InvCatalogFactory factory = InvCatalogFactory.getDefaultFactory(false); // no validation
    cat = readCatalog(factory, getPath() + catName, contentPath + getPath() + catName);
    if (cat == null) {
      logServerStartup.info("cat initialization failed");
      return;
    }
    // URI tmpURI = cat.getBaseURI();
    cat.setBaseURI(catURI);
    // get path and location from cat
    List parents = cat.getDatasets();
    for (int i = 0; i < parents.size(); i++) {
      InvDataset top = (InvDataset) parents.get(i);
      datasets = top.getDatasets(); // dataset scans

      for (int j = 0; j < datasets.size(); j++) {
        InvDatasetScan ds = (InvDatasetScan) datasets.get(j);
        if (ds.getPath() != null) {
          dataLocation.put(ds.getPath(), ds.getScanLocation());
          logServerStartup.info("path =" + ds.getPath() + " location =" + ds.getScanLocation());
        }
        ds.setXlinkHref(ds.getPath() + "/dataset.xml");
      }
    }
    logServerStartup.info(getClass().getName() + " initialization complete ");
  } // end init
Esempio n. 2
0
  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;
  }
Esempio n. 3
0
  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;
  }
Esempio n. 4
0
  private void datasetInfoXml(RadarType radarType, String pathInfo, PrintWriter pw)
      throws IOException {

    try {
      pw.println(
          "<catalog xmlns=\"http://www.unidata.ucar.edu/namespaces/thredds/InvCatalog/v1.0\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" name=\"Radar Data\" version=\"1.0.1\">\n");
      // add service
      pw.println(
          "  <service name=\"radarServer\" base=\"/thredds/radarServer/\" serviceType=\"DQC\" />\n");
      pathInfo = pathInfo.replace("/dataset.xml", "");
      pathInfo = pathInfo.replace("/catalog.xml", "");
      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;
        }

        pw.println("  <dataset ID=\"" + ds.getID() + "\" serviceName=\"radarServer\">");

        pw.println("    <urlpath>" + ds.getPath() + "</urlpath>");
        pw.println("    <dataType>" + ds.getDataType() + "</dataType>");

        pw.println("    <dataFormat>" + ds.getDataFormatType() + "</dataFormat>");

        pw.println("   <serviceName>radarServer</serviceName>");

        pw.println("    <metadata inherited=\"true\">");

        pw.println("    <documentation type=\"summary\">" + ds.getSummary() + "</documentation>");
        CalendarDateRange dr = ds.getCalendarDateCoverage();
        pw.println("      <TimeSpan>");
        pw.print("        <start>");
        if (pathInfo.contains("IDD")) {
          pw.print(rm.getStartDateTime(ds.getPath()));
        } else {
          pw.print(dr.getStart().toString());
        }
        pw.println("</start>");
        pw.println("        <end>" + dr.getEnd().toString() + "</end>");
        pw.println("      </TimeSpan>");
        ThreddsMetadata.GeospatialCoverage gc = ds.getGeospatialCoverage();
        LatLonRect bb = new LatLonRect();
        gc.setBoundingBox(bb);
        pw.println("      <LatLonBox>");
        pw.println("        <north>" + gc.getLatNorth() + "</north>");
        pw.println("        <south>" + gc.getLatSouth() + "</south>");
        pw.println("        <east>" + gc.getLonEast() + "</east>");
        pw.println("        <west>" + gc.getLonWest() + "</west>");
        pw.println("      </LatLonBox>");

        ThreddsMetadata.Variables cvs = (ThreddsMetadata.Variables) ds.getVariables().get(0);
        List vl = cvs.getVariableList();

        pw.println("      <Variables>");
        for (int j = 0; j < vl.size(); j++) {
          ThreddsMetadata.Variable v = (ThreddsMetadata.Variable) vl.get(j);
          pw.println(
              "        <variable name=\""
                  + v.getName()
                  + "\" vocabulary_name=\""
                  + v.getVocabularyName()
                  + "\" units=\""
                  + v.getUnits()
                  + "\" />");
        }
        pw.println("      </Variables>");
        String[] stations = rm.stationsDS(radarType, dataLocation.get(ds.getPath()));
        rm.printStations(stations, pw, radarType);

        pw.println("    </metadata>");
        pw.println("  </dataset>");
      }
      pw.println("</catalog>");
      pw.flush();
    } catch (Throwable e) {
      log.error("RadarServer.datasetInfoXml", e);
    }
    return;
  }