Add support for direct SMAP bounding box information

Support for retrieving and setting the bounding box information available in SMAP meta data via the `EX_GeographicBoundingBox` element was missing. This change adds that support.
nsidc · Jan 13, 2024 · eb359a8 · eb359a8
1 parent e018ffa
commit eb359a8
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diff --git a/src/main/java/gov/nasa/cumulus/metadata/aggregator/IsoSmapXPath.java b/src/main/java/gov/nasa/cumulus/metadata/aggregator/IsoSmapXPath.java
@@ -11,6 +11,12 @@ public final class IsoSmapXPath extends IsoXPath {
     public static final String BEGINNING_DATE_TIME = BASE + "/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:temporalElement/gmd:EX_TemporalExtent/gmd:extent/gml:TimePeriod/gml:beginPosition";
     public static final String ENDING_DATE_TIME = BASE + "/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:temporalElement/gmd:EX_TemporalExtent/gmd:extent/gml:TimePeriod/gml:endPosition";
 
+    public static final String BOUNDING_BOX = BASE + "/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:geographicElement/gmd:EX_GeographicBoundingBox";
+    public static final String WEST_BOUNDING_COORDINATE = BASE + "/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:geographicElement/gmd:EX_GeographicBoundingBox/gmd:westBoundLongitude/gco:Decimal";
+    public static final String SOUTH_BOUNDING_COORDINATE = BASE + "/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:geographicElement/gmd:EX_GeographicBoundingBox/gmd:southBoundLongitude/gco:Decimal";
+    public static final String EAST_BOUNDING_COORDINATE = BASE + "/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:geographicElement/gmd:EX_GeographicBoundingBox/gmd:eastBoundLongitude/gco:Decimal";
+    public static final String NORTH_BOUNDING_COORDINATE = BASE + "/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:geographicElement/gmd:EX_GeographicBoundingBox/gmd:northBoundLongitude/gco:Decimal";
+
     public static final String PRODUCER_GRANULE_ID = BASE + CI_CITATION + "/gmd:title/gmx:FileName";
     public static final String CRID = BASE + CI_CITATION + "/gmd:identifier[0]/gmd:MD_Identifier/gmd:code/gco:CharacterString";
     public static final String IDENTIFIERS = BASE + CI_CITATION + "/gmd:identifier[1]/gmd:MD_Identifier/gmd:code/gco:CharacterString";

diff --git a/src/main/java/gov/nasa/cumulus/metadata/aggregator/MetadataFilesToEcho.java b/src/main/java/gov/nasa/cumulus/metadata/aggregator/MetadataFilesToEcho.java
@@ -808,6 +808,24 @@ private void readIsoSmapMetadataFile(String s3Location, Document doc, XPath xpat
             AdapterLogger.LogInfo("Couldn't find orbit information from " + IsoSmapXPath.OrbitCalculatedSpatialDomains);
         }
 
+		String boundingBoxInformation = xpath.evaluate(IsoSmapXPath.BOUNDING_BOX, doc);
+		if (boundingBoxInformation != null) {
+			String north = xpath.evaluate(IsoSmapXPath.NORTH_BOUNDING_COORDINATE, doc);
+			String south = xpath.evaluate(IsoSmapXPath.SOUTH_BOUNDING_COORDINATE, doc);
+			String east = xpath.evaluate(IsoSmapXPath.EAST_BOUNDING_COORDINATE, doc);
+			String west = xpath.evaluate(IsoSmapXPath.WEST_BOUNDING_COORDINATE, doc);
+
+			try {
+				setGranuleBoundingBox(Double.parseDouble(north),
+                                      Double.parseDouble(south),
+                                      Double.parseDouble(east),
+                                      Double.parseDouble(west));
+		    } catch (NullPointerException | NumberFormatException exception) {
+				throw new IllegalArgumentException(String.format("Failed to parse bbox N=%s S=%s E=%s W=%s",
+						                                         north, south, east, west), exception);
+			}
+		}
+
         ((IsoGranule) granule).setProducerGranuleId(xpath.evaluate(IsoSmapXPath.PRODUCER_GRANULE_ID, doc));
         ((IsoGranule) granule).setCrid(xpath.evaluate(IsoSmapXPath.CRID, doc));
         ((IsoGranule) granule).setParameterName("Parameter name placeholder");