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adds fast cog flow for ecdc assets #320

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Merged
AM1729 merged 1 commit into from
Aug 26, 2026
Merged

adds fast cog flow for ecdc assets #320

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67 changes: 50 additions & 17 deletions adapters/klab.ogc/src/main/java/org/integratedmodelling/klab/stac/STACEncoder.java
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Original file line number Diff line number Diff line change
Expand Up @@ -617,8 +617,8 @@ public boolean test(HMStacAsset asset) { // Assuming for now that "eo:bands" wou
scope.getMonitor().info("Fetching Model IDs to pass to the Slow Request UDP");
List<String >modelIds = null;
try {
var modelIDs = WEEDModelSTACExtension.GetONNXModelIDs(bbox, scope.getMonitor(), targetSemantics);
if (modelIDs == null || modelIDs.size() == 0) {
modelIds = WEEDModelSTACExtension.GetONNXModelIDs(bbox, scope.getMonitor(), targetSemantics);
if (modelIds == null || modelIds.size() == 0) {
throw new Exception("No ONNX Models were found over the specified context");
}
} catch (Exception e) {
Expand Down Expand Up @@ -675,24 +675,57 @@ public boolean test(HMStacAsset asset) { // Assuming for now that "eo:bands" wou
space.getProjection().getCoordinateReferenceSystem());
RegionMap regionTransformed = RegionMap.fromEnvelopeAndGrid(regionEnvelope, (int) grid.getXCells(),
(int) grid.getYCells());

HMRaster outRaster = collection.readRasterBandOnRegion(regionTransformed, assetPredicate, items, allowTransform,
MergeMode.SUBSTITUTE, lpm);
if (outRaster == null) {
scope.getMonitor().error("Unable to build the output from the STAC Resource");
throw new KlabIllegalStateException("Unable to build the output from the STAC Resource");
}

CoordinateReferenceSystem targetCRS = HMCrsRegistry.INSTANCE.getCrs("4326");
if (!HMCrsRegistry.crsEquals(outRaster.getCrs(),targetCRS)) {
var transformer = new HMCrsTransformer(outRaster.getCrs(), targetCRS);
transformer.setAcceptLenientDatumShift(true);
outRaster = transformer.transform(outRaster);

HMRaster paddedRaster = null;

if (collection.getTitle().toLowerCase().contains("ecdc")) {
scope.getMonitor().info("Falling back on fast cog flow for ecdc assets");
List<String> cogHrefs = items.stream()
.flatMap(item -> item.getAssets().stream()
.filter(pred)
.findFirst()
.map(asset -> asset.getAssetNode().get("href").asText())
.stream())
.toList();

for (var cogHref: cogHrefs) {
var cogCoverage = COGAssetExtension.getCOGWindowCoverage(bbox, cogHref);
HMRaster raster = HMRaster.fromGridCoverage(cogCoverage);
if (!HMCrsRegistry.crsEquals(raster.getCrs(),targetCRS)) {
var transformer = new HMCrsTransformer(raster.getCrs(), targetCRS);
transformer.setAcceptLenientDatumShift(true);
raster = transformer.transform(raster);
}

if (paddedRaster == null) {
paddedRaster = new HMRasterWritableBuilder().setNoValue(raster.getNovalue())
.setName("padded").setRegion(regionTransformed)
.setCrs(targetCRS).build();
}
paddedRaster.mapRaster(null, raster, null);
}
} else {
HMRaster outRaster = collection.readRasterBandOnRegion(regionTransformed, assetPredicate, items, allowTransform,
MergeMode.SUBSTITUTE, lpm);
if (outRaster == null) {
scope.getMonitor().error("Unable to build the output from the STAC Resource");
throw new KlabIllegalStateException("Unable to build the output from the STAC Resource");
}
paddedRaster = new HMRasterWritableBuilder().setNoValue(outRaster.getNovalue())
.setName("padded").setRegion(regionTransformed)
.setCrs(targetCRS).build();
if (!HMCrsRegistry.crsEquals(outRaster.getCrs(),targetCRS)) {
var transformer = new HMCrsTransformer(outRaster.getCrs(), targetCRS);
transformer.setAcceptLenientDatumShift(true);
outRaster = transformer.transform(outRaster);
}

paddedRaster.mapRaster(null, outRaster, null);
}


HMRaster paddedRaster = new HMRasterWritableBuilder().setName("padded").setRegion(regionTransformed)
.setCrs(targetCRS).setNoValue(outRaster.getNovalue()).build();
paddedRaster.mapRaster(null, outRaster, null);
coverage = paddedRaster.buildCoverage();

if (bandIndex != null) { // Which means theat it's a Multi Band COG
Expand Down
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