/** * Open a FeatureDataset from an InvAccess object. * * @param access use this InvAccess. * @param task may be null * @return ThreddsDataFactory.Result check fatalError for validity * @throws IOException on read error */ public ThreddsDataFactory.Result openFeatureDataset( InvAccess access, ucar.nc2.util.CancelTask task) throws IOException { InvDataset invDataset = access.getDataset(); ThreddsDataFactory.Result result = new Result(); if (invDataset.getDataType() == null) { result.errLog.format("InvDatasert must specify a FeatureType%n"); result.fatalError = true; return result; } return openFeatureDataset(invDataset.getDataType(), access, task, result); }
public void testSingleDataset() throws IOException { InvCatalogImpl cat = TestTDSAll.open(null); InvDataset ds = cat.findDatasetByID("testSingleDataset"); assert (ds != null) : "cant find dataset 'testSingleDataset'"; assert ds.getDataType() == FeatureType.GRID; ThreddsDataFactory fac = new ThreddsDataFactory(); ThreddsDataFactory.Result dataResult = fac.openFeatureDataset(ds, null); assert dataResult != null; assert !dataResult.fatalError; assert dataResult.featureDataset != null; GridDataset gds = (GridDataset) dataResult.featureDataset; GridDatatype grid = gds.findGridDatatype("Z_sfc"); assert grid != null; GridCoordSystem gcs = grid.getCoordinateSystem(); assert gcs != null; assert null == gcs.getVerticalAxis(); CoordinateAxis1D time = gcs.getTimeAxis1D(); assert time != null; assert time.getSize() == 1; assert 102840.0 == time.readScalarDouble(); dataResult.featureDataset.close(); }
public ThreddsDataFactory.Result openFeatureDataset( FeatureType wantFeatureType, InvDataset invDataset, ucar.nc2.util.CancelTask task, Result result) throws IOException { result.featureType = invDataset.getDataType(); if (result.featureType == null) result.featureType = wantFeatureType; // look for remote FeatureDataset if ((result.featureType != null) && result.featureType.isPointFeatureType()) { InvAccess access = findAccessByServiceType(invDataset.getAccess(), ServiceType.CdmrFeature); if (access != null) return openFeatureDataset(result.featureType, access, task, result); } // special handling for images if (result.featureType == FeatureType.IMAGE) { InvAccess access = getImageAccess(invDataset, task, result); if (access != null) { return openFeatureDataset(result.featureType, access, task, result); } else result.fatalError = true; return result; } // special handling for DQC InvAccess qc = invDataset.getAccess(ServiceType.QC); if (qc != null) { String dqc_location = qc.getStandardUrlName(); if (result.featureType == FeatureType.STATION) { /* DqcFactory dqcFactory = new DqcFactory(true); QueryCapability dqc = dqcFactory.readXML(dqc_location); if (dqc.hasFatalError()) { result.errLog.append(dqc.getErrorMessages()); result.fatalError = true; } */ result.featureDataset = null; // LOOK FIX ucar.nc2.thredds.DqcStationObsDataset.factory(invDataset, // dqc_location, result.errLog); result.fatalError = (result.featureDataset == null); } else { result.errLog.format("DQC must be station DQC, dataset = %s %n", invDataset.getName()); result.fatalError = true; } return result; } NetcdfDataset ncd = openDataset(invDataset, true, task, result.errLog); if (null != ncd) result.featureDataset = FeatureDatasetFactoryManager.wrap(result.featureType, ncd, task, result.errLog); if (null == result.featureDataset) result.fatalError = true; else { result.location = result.featureDataset.getLocation(); if ((result.featureType == null) && (result.featureDataset != null)) result.featureType = result.featureDataset.getFeatureType(); } return result; }