Examples of org.geotools.gce.imagemosaic.ImageMosaicReader

org.geotools.gce.imagemosaic.ImageMosaicReader
Reader responsible for providing access to mosaic of georeferenced images. Citing JAI documentation: The "Mosaic" operation creates a mosaic of two or more source images. This operation could be used for example to assemble a set of overlapping geospatially rectified images into a contiguous image. It could also be used to create a montage of photographs such as a panorama. All source images are assumed to have been geometrically mapped into a common coordinate space. The origin (minX, minY) of each image is therefore taken to represent the location of the respective image in the common coordinate system of the source images. This coordinate space will also be that of the destination image. All source images must have the same data type and sample size for all bands and have the same number of bands as color components. The destination will have the same data type, sample size, and number of bands and color components as the sources. @author Simone Giannecchini, GeoSolutions S.A.S @author Stefan Alfons Krueger (alfonx), Wikisquare.de : Support for jar:file:foo.jar/bar.properties URLs @since 2.3 @source $URL$

        File dsp = TestData.file(this,"datastore.properties");
        FileUtils.copyFileToDirectory(dsp, mosaic);


        // have the reader harvest it
        ImageMosaicFormat format = new ImageMosaicFormat();
        ImageMosaicReader reader = format.getReader(mosaic);
        SimpleFeatureIterator it = null;
        assertNotNull(reader);
        try {
            String[] names = reader.getGridCoverageNames();
            assertEquals(1, names.length);
            assertEquals("NO2", names[0]);


            // check we have the two granules we expect
            GranuleSource source = reader.getGranules("NO2", true);
            FilterFactory2 ff = CommonFactoryFinder.getFilterFactory2();
            Query q = new Query(Query.ALL);
            q.setSortBy(new SortBy[] { ff.sort("time", SortOrder.DESCENDING) });
            SimpleFeatureCollection granules = source.getGranules(q);
            assertEquals(1, granules.size());
            it = granules.features();
            assertTrue(it.hasNext());
            SimpleFeature f = it.next();
            assertEquals("20130101.METOPA.GOME2.NO2.DUMMY.nc", f.getAttribute("location"));
            assertEquals(0, f.getAttribute("imageindex"));
            assertEquals("2013-01-01T00:00:00.000Z",
                    ConvertersHack.convert(f.getAttribute("time"), String.class));
            it.close();


            // now add another netcdf and harvest it
            File nc2 =  TestData.file(this,"20130116.METOPA.GOME2.NO2.DUMMY.nc");
            FileUtils.copyFileToDirectory(nc2, mosaic);
            File fileToHarvest = new File(mosaic, "20130116.METOPA.GOME2.NO2.DUMMY.nc");
            List<HarvestedSource> harvestSummary = reader.harvest("NO2", fileToHarvest, null);
            assertEquals(1, harvestSummary.size());
            granules = source.getGranules(q);
            assertEquals(2, granules.size());
            
            HarvestedSource hf = harvestSummary.get(0);
            assertEquals("20130116.METOPA.GOME2.NO2.DUMMY.nc", ((File) hf.getSource()).getName());
            assertTrue(hf.success());
            assertEquals(1, reader.getGridCoverageNames().length);


            File nc3 =  TestData.file(this,"20130108.METOPA.GOME2.NO2.DUMMY.nc");
            FileUtils.copyFileToDirectory(nc3, mosaic);
            fileToHarvest = new File(mosaic, "20130108.METOPA.GOME2.NO2.DUMMY.nc");
            harvestSummary = reader.harvest("NO2", fileToHarvest, null);
            assertEquals(1, harvestSummary.size());
            hf = harvestSummary.get(0);
            assertEquals("20130108.METOPA.GOME2.NO2.DUMMY.nc", ((File) hf.getSource()).getName());
            assertTrue(hf.success());
            assertEquals(1, reader.getGridCoverageNames().length);


            // check that we have 2 times now
            granules = source.getGranules(q);
            assertEquals(3, granules.size());
            it = granules.features();
            f = it.next();
            assertEquals("20130116.METOPA.GOME2.NO2.DUMMY.nc", f.getAttribute("location"));
            assertEquals(0, f.getAttribute("imageindex"));
            assertEquals("2013-01-16T00:00:00.000Z",
                    ConvertersHack.convert(f.getAttribute("time"), String.class));
            assertTrue(it.hasNext());
            f = it.next();
            assertEquals("20130108.METOPA.GOME2.NO2.DUMMY.nc", f.getAttribute("location"));
            assertEquals(0, f.getAttribute("imageindex"));
            assertEquals("2013-01-08T00:00:00.000Z",
                    ConvertersHack.convert(f.getAttribute("time"), String.class));
            f = it.next();
            assertEquals("20130101.METOPA.GOME2.NO2.DUMMY.nc", f.getAttribute("location"));
            assertEquals(0, f.getAttribute("imageindex"));
            assertEquals("2013-01-01T00:00:00.000Z",
                    ConvertersHack.convert(f.getAttribute("time"), String.class));


            it.close();
        } finally {
            if (it != null) {
                it.close();
            }
            reader.dispose();
        }
    }

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        File dsp = TestData.file(this,"datastore.properties");
        FileUtils.copyFileToDirectory(dsp, mosaic);


        // have the reader harvest it
        ImageMosaicFormat format = new ImageMosaicFormat();
        ImageMosaicReader reader = format.getReader(mosaic);
        GridCoverage2D coverage = null;
        assertNotNull(reader);
        try {
            String[] names = reader.getGridCoverageNames();
            assertEquals(1, names.length);
            assertEquals("NO2", names[0]);
            
            GranuleSource source = reader.getGranules("NO2", true);
            SimpleFeatureCollection granules = source.getGranules(Query.ALL);
            assertEquals(1, granules.size());
            
            assertTrue(CRS.equalsIgnoreMetadata(DefaultGeographicCRS.WGS84, reader.getCoordinateReferenceSystem()));
            GeneralEnvelope envelope = reader.getOriginalEnvelope("NO2");
            assertEquals(-360, envelope.getMinimum(0), 0d);
            assertEquals(360, envelope.getMaximum(0), 0d);
            assertEquals(-180, envelope.getMinimum(1), 0d);
            assertEquals(180, envelope.getMaximum(1), 0d);


            // check we can read a coverage out of it
            coverage = reader.read(null);
            reader.dispose();


            // Checking we can read again from the coverage once it has been configured.
            reader = format.getReader(mosaic);
            coverage = reader.read(null);
            assertNotNull(coverage);
            
        } finally {
            if(coverage != null) {
                ImageUtilities.disposePlanarImageChain((PlanarImage) coverage.getRenderedImage());
                coverage.dispose(true);
            }
            reader.dispose();
        }
    }

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        File dsp = TestData.file(this, "datastore.properties");
        FileUtils.copyFileToDirectory(dsp, mosaic);


        // have the reader harvest it
        ImageMosaicFormat format = new ImageMosaicFormat();
        ImageMosaicReader reader = format.getReader(mosaic);
        InputStream inStream = null;
        assertNotNull(reader);
        try {
            String[] names = reader.getGridCoverageNames();
            assertEquals(1, names.length);
            assertEquals("NO2", names[0]);


            GranuleSource source = reader.getGranules("NO2", true);
            SimpleFeatureCollection granules = source.getGranules(Query.ALL);
            assertEquals(1, granules.size());
            Properties props = new Properties();
            final File file = new File(mosaic, "nc_harvestRP.properties");
            inStream = new FileInputStream(file);
            props.load(inStream);
            // Before the fix, the AuxiliaryFile was always an absolute path
            assertEquals(auxFileName, (String) props.getProperty(Prop.AUXILIARY_FILE));
        } finally {
            if (inStream != null) {
                IOUtils.closeQuietly(inStream);
            }
            if (reader != null) {
                try {


                    reader.dispose();
                } catch (Throwable t) {
                    // Ignore exception on close attempt
                }
            }
        }

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        File dsp = TestData.file(this,"datastore.properties");
        FileUtils.copyFileToDirectory(dsp, mosaic);


        // have the reader harvest it
        ImageMosaicFormat format = new ImageMosaicFormat();
        ImageMosaicReader reader = format.getReader(mosaic);
        GridCoverage2D coverage = null;
        assertNotNull(reader);
        try {
            assertEquals(2, reader.getGridCoverageNames().length);


            File[] files = mosaic.listFiles();
            assertEquals(15, files.length);
            
            reader.dispose();
            reader = format.getReader(mosaic);
            
            reader.delete(false);
            files = mosaic.listFiles();
            assertEquals(1, files.length);
            
        } finally {
            if(coverage != null) {
                ImageUtilities.disposePlanarImageChain((PlanarImage) coverage.getRenderedImage());
                coverage.dispose(true);
            }
            reader.dispose();
        }
    }

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        File dsp = TestData.file(this,"datastore.properties");
        FileUtils.copyFileToDirectory(dsp, mosaic);


        // have the reader harvest it
        ImageMosaicFormat format = new ImageMosaicFormat();
        ImageMosaicReader reader = format.getReader(mosaic);
        GridCoverage2D coverage = null;
        assertNotNull(reader);
        try {
            String[] names = reader.getGridCoverageNames();
            assertEquals(2, names.length);
            assertEquals("NO2", names[0]);
            assertEquals("BrO", names[1]);
            
            GranuleSource source = reader.getGranules("NO2", true);
            SimpleFeatureCollection granules = source.getGranules(Query.ALL);
            assertEquals(1, granules.size());
            
            assertTrue(CRS.equalsIgnoreMetadata(DefaultGeographicCRS.WGS84, reader.getCoordinateReferenceSystem("NO2")));
            GeneralEnvelope envelope = reader.getOriginalEnvelope("NO2");
            assertEquals(-360, envelope.getMinimum(0), 0d);
            assertEquals(360, envelope.getMaximum(0), 0d);
            assertEquals(-180, envelope.getMinimum(1), 0d);
            assertEquals(180, envelope.getMaximum(1), 0d);


            // check we can read a coverage out of it
            coverage = reader.read("NO2", null);
            reader.dispose();


            // Checking we can read again from the coverage (using a different name this time) once it has been configured.
            reader = format.getReader(mosaic);
            coverage = reader.read("BrO", null);
            assertNotNull(coverage);
            
        } finally {
            if(coverage != null) {
                ImageUtilities.disposePlanarImageChain((PlanarImage) coverage.getRenderedImage());
                coverage.dispose(true);
            }
            reader.dispose();
        }
    }

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        File dsp =  TestData.file(this,"datastore.properties");
        FileUtils.copyFileToDirectory(dsp, mosaic);


        // have the reader harvest it
        ImageMosaicFormat format = new ImageMosaicFormat();
        ImageMosaicReader reader = format.getReader(mosaic);
        assertNotNull(reader);
        
        // Checking whether different sample images have been created
        final File sampleImage1 = new File(TestData.file(this,"."),"nc_sampleimages/BrOsample_image");
        final File sampleImage2 = new File(TestData.file(this,"."),"nc_sampleimages/NO2sample_image");
        assertTrue(sampleImage1.exists());
        assertTrue(sampleImage2.exists());
        reader.dispose();
    }

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                final File workDir=new File("C:\\data\\dlr\\ascatL1_mosaic");
                
            
                final AbstractGridFormat format = new ImageMosaicFormat();
                assertNotNull(format);
                ImageMosaicReader reader = (ImageMosaicReader) format.getReader(workDir.toURI().toURL());
                assertNotNull(format);
                String[] names = reader.getGridCoverageNames();
                String name = names[1];


                
                final String[] metadataNames = reader.getMetadataNames(name);
                assertNotNull(metadataNames);
                assertEquals(metadataNames.length, 18);
                
                assertEquals("false", reader.getMetadataValue(name, "HAS_TIME_DOMAIN"));
                
                assertEquals("true", reader.getMetadataValue(name, "HAS_NUMSIGMA_DOMAIN"));
                assertEquals("0,1,2",reader.getMetadataValue(name, "NUMSIGMA_DOMAIN"));
                assertEquals("java.lang.Integer", reader.getMetadataValue(name, "NUMSIGMA_DOMAIN_DATATYPE"));


                assertEquals("true", reader.getMetadataValue(name, "HAS_RUNTIME_DOMAIN"));
                assertEquals("false", reader.getMetadataValue(name, "HAS_ELEVATION_DOMAIN"));
                assertEquals("false", reader.getMetadataValue(name, "HAS_XX_DOMAIN"));
                assertEquals("20110620020000", reader.getMetadataValue(name, "RUNTIME_DOMAIN"));
                assertEquals("java.lang.String", reader.getMetadataValue(name, "RUNTIME_DOMAIN_DATATYPE"));


                
                // limit yourself to reading just a bit of it
                final ParameterValue<GridGeometry2D> gg =  AbstractGridFormat.READ_GRIDGEOMETRY2D.createValue();
                final GeneralEnvelope envelope = reader.getOriginalEnvelope(name);
                final Dimension dim= new Dimension();
                dim.setSize(reader.getOriginalGridRange(name).getSpan(0)/2.0, reader.getOriginalGridRange(name).getSpan(1)/2.0);
                final Rectangle rasterArea=(( GridEnvelope2D)reader.getOriginalGridRange(name));
                rasterArea.setSize(dim);
                final GridEnvelope2D range= new GridEnvelope2D(rasterArea);
                gg.setValue(new GridGeometry2D(range,envelope));
                
                
                final ParameterValue<Boolean> direct= ImageMosaicFormat.USE_JAI_IMAGEREAD.createValue();
                direct.setValue(false);
                
                final ParameterValue<double[]> bkg = ImageMosaicFormat.BACKGROUND_VALUES.createValue();
                bkg.setValue(new double[]{-9999.0});
                
                ParameterValue<List<String>> dateValue = null;
                ParameterValue<List<String>> sigmaValue = null;
                final String selectedSigma = "1";
                final String selectedRuntime = "20110620020000";
            Set<ParameterDescriptor<List>> params = reader.getDynamicParameters(name);
                for (ParameterDescriptor param : params) {
                    if (param.getName().getCode().equalsIgnoreCase("RUNTIME")) {
                        dateValue = param.createValue();
                        dateValue.setValue(new ArrayList<String>() {
                            {
                                add(selectedRuntime);
                            }
                        });
                    } else if (param.getName().getCode().equalsIgnoreCase("NUMSIGMA")) {
                        sigmaValue = param.createValue();
                        sigmaValue.setValue(new ArrayList<String>() {
                            {
                                add(selectedSigma);
                            }
                        });
                    }
                }
                // Test the output coverage
                GridCoverage2D coverage = reader.read(name, new GeneralParameterValue[] {gg, bkg, direct, sigmaValue, dateValue});
                assertNotNull(coverage);
                
                
        }

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    }


    static ImageMosaicReader getReader(URL testURL, final AbstractGridFormat format, Hints hints) {
        // Get a reader
        final ImageMosaicReader reader = (ImageMosaicReader) format.getReader(testURL, hints);
        Assert.assertNotNull(reader);
        return reader;
    }

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                // light check to see if this reader had been disposed, not synching for performance. 
                if (readers == null) {
                    throw new IllegalStateException("This ImagePyramidReader has already been disposed");
                }
    
                ImageMosaicReader reader = getImageMosaicReaderForLevel(imageChoice);


  
    //
    // Abusing of the created ImageMosaicreader for getting a
    // gridcoverage2d, then rename it
    //
    GridCoverage2D mosaicCoverage = reader.read(params);
    if(mosaicCoverage != null) {
        return new GridCoverage2D(coverageName, mosaicCoverage);
    } else {
        // the mosaic can still return null in corner cases, handle that gracefully
        return null;

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  public String getMetadataValue(final String name) {
      String value=super.getMetadataValue(name);
      if(value!=null){
          return value;
      }
      ImageMosaicReader firstLevelReader=null;
    try {
      firstLevelReader= getImageMosaicReaderForLevel(0);
    } catch (IOException e) {
            if(LOGGER.isLoggable(Level.WARNING)){
                LOGGER.log(Level.WARNING,"Could not get reader for datasource.",e);
            }
            return null;
    }
      
        if (name.equalsIgnoreCase(HAS_TIME_DOMAIN)){
          return String.valueOf(this.hasTimeDomain(firstLevelReader));
        } 
        
      if(TIME_DOMAIN.equalsIgnoreCase(name)||
        TIME_DOMAIN_MAXIMUM.equalsIgnoreCase(name)||
        TIME_DOMAIN_MINIMUM.equalsIgnoreCase(name)) 
    {
          if (this.hasTimeDomain(firstLevelReader)){
             return this.getTimeDomain(firstLevelReader, name);
          }
    }
    if(firstLevelReader!=null) {
      return firstLevelReader.getMetadataValue(name);
    } else {
      return null;
    }
  }

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