package org.geoserver.wps.gs;
import java.io.InputStream;
import org.geoserver.data.test.MockData;
import org.geoserver.wps.WPSTestSupport;
import org.geotools.gce.arcgrid.ArcGridFormat;
import org.opengis.coverage.grid.GridCoverage;
import org.opengis.coverage.grid.GridEnvelope;
import com.mockrunner.mock.web.MockHttpServletResponse;
public class ScaleCoverageTest extends WPSTestSupport {
static final double EPS = 1e-6;
@Override
protected void populateDataDirectory(MockData dataDirectory) throws Exception {
super.populateDataDirectory(dataDirectory);
dataDirectory.addWcs11Coverages();
}
public void testScale() throws Exception {
String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
"<wps:Execute version=\"1.0.0\" service=\"WPS\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns=\"http://www.opengis.net/wps/1.0.0\" xmlns:wfs=\"http://www.opengis.net/wfs\" xmlns:wps=\"http://www.opengis.net/wps/1.0.0\" xmlns:ows=\"http://www.opengis.net/ows/1.1\" xmlns:gml=\"http://www.opengis.net/gml\" xmlns:ogc=\"http://www.opengis.net/ogc\" xmlns:wcs=\"http://www.opengis.net/wcs/1.1.1\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" xsi:schemaLocation=\"http://www.opengis.net/wps/1.0.0 http://schemas.opengis.net/wps/1.0.0/wpsAll.xsd\">\n" +
" <ows:Identifier>gs:ScaleCoverage</ows:Identifier>\n" +
" <wps:DataInputs>\n" +
" <wps:Input>\n" +
" <ows:Identifier>coverage</ows:Identifier>\n" +
" <wps:Reference mimeType=\"image/tiff\" xlink:href=\"http://geoserver/wcs\" method=\"POST\">\n" +
" <wps:Body>\n" +
" <wcs:GetCoverage service=\"WCS\" version=\"1.1.1\">\n" +
" <ows:Identifier>" + getLayerId(MockData.TASMANIA_DEM) + "</ows:Identifier>\n" +
" <wcs:DomainSubset>\n" +
" <gml:BoundingBox crs=\"http://www.opengis.net/gml/srs/epsg.xml#4326\">\n" +
" <ows:LowerCorner>-180.0 -90.0</ows:LowerCorner>\n" +
" <ows:UpperCorner>180.0 90.0</ows:UpperCorner>\n" +
" </gml:BoundingBox>\n" +
" </wcs:DomainSubset>\n" +
" <wcs:Output format=\"image/tiff\"/>\n" +
" </wcs:GetCoverage>\n" +
" </wps:Body>\n" +
" </wps:Reference>\n" +
" </wps:Input>\n" +
" <wps:Input>\n" +
" <ows:Identifier>xScale</ows:Identifier>\n" +
" <wps:Data>\n" +
" <wps:LiteralData>2</wps:LiteralData>\n" +
" </wps:Data>\n" +
" </wps:Input>\n" +
" <wps:Input>\n" +
" <ows:Identifier>yScale</ows:Identifier>\n" +
" <wps:Data>\n" +
" <wps:LiteralData>2</wps:LiteralData>\n" +
" </wps:Data>\n" +
" </wps:Input>\n" +
" <wps:Input>\n" +
" <ows:Identifier>xTranslate</ows:Identifier>\n" +
" <wps:Data>\n" +
" <wps:LiteralData>0</wps:LiteralData>\n" +
" </wps:Data>\n" +
" </wps:Input>\n" +
" <wps:Input>\n" +
" <ows:Identifier>yTranslate</ows:Identifier>\n" +
" <wps:Data>\n" +
" <wps:LiteralData>0</wps:LiteralData>\n" +
" </wps:Data>\n" +
" </wps:Input>\n" +
" </wps:DataInputs>\n" +
" <wps:ResponseForm>\n" +
" <wps:RawDataOutput mimeType=\"application/arcgrid\">\n" +
" <ows:Identifier>result</ows:Identifier>\n" +
" </wps:RawDataOutput>\n" +
" </wps:ResponseForm>\n" +
"</wps:Execute>\n" +
"";
MockHttpServletResponse response = postAsServletResponse(root(), xml);
// System.out.println(response.getOutputStreamContent());
InputStream is = getBinaryInputStream(response);
ArcGridFormat format = new ArcGridFormat();
GridCoverage gc = format.getReader(is).read(null);
GridCoverage original = getCatalog().getCoverageByName(getLayerId(MockData.TASMANIA_DEM)).getGridCoverage(null, null);
// check the envelope did not change
assertEquals(original.getEnvelope().getMinimum(0), gc.getEnvelope().getMinimum(0), EPS);
assertEquals(original.getEnvelope().getMinimum(1), gc.getEnvelope().getMinimum(1), EPS);
assertEquals(original.getEnvelope().getMaximum(0), gc.getEnvelope().getMaximum(0), EPS);
assertEquals(original.getEnvelope().getMaximum(1), gc.getEnvelope().getMaximum(1), EPS);
// check this has been resized properly
GridEnvelope originalRange = original.getGridGeometry().getGridRange();
GridEnvelope resultRange = gc.getGridGeometry().getGridRange();
assertEquals(originalRange.getSpan(0) * 2, resultRange.getSpan(0));
assertEquals(originalRange.getSpan(1) * 2, resultRange.getSpan(1));
}
}