public void open()

in src/main/java/org/apache/sdap/ningester/datatiler/NetCDFItemReader.java [81:117]
28 lines of code
5 McCabe index (conditional complexity)

    public void open(ExecutionContext executionContext) throws ItemStreamException {

        File netCDFFile = null;
        try {
            netCDFFile = this.netCDFResource.getFile();
        } catch (IOException e) {
            throw new ItemStreamException(e);
        }

        //Every time we open the file we generate the tile specs according to the given file slicer
        try {
            this.tileSpecList = fileSlicer.generateSlices(netCDFFile);
        } catch (IOException e) {
            throw new ItemStreamException(e);
        }
        log.debug("Generated tile specifications for {}\nINDEX\tTILE SPECIFICATION\n{}", netCDFFile.getName(),
                IntStream.range(0, this.tileSpecList.size())
                        .mapToObj(i -> i + "\t" + this.tileSpecList.get(i))
                        .collect(Collectors.joining("\n")));

        if (!executionContext.containsKey(CURRENT_TILE_SPEC_INDEX_KEY)) {
            //Start at index 0
            this.currentTileSpecIndex = 0;
            executionContext.putInt(CURRENT_TILE_SPEC_INDEX_KEY, this.currentTileSpecIndex);
        } else {
            //Start at index location from context
            this.currentTileSpecIndex = executionContext.getInt(CURRENT_TILE_SPEC_INDEX_KEY);
        }

        //Open the resource
        try {
            this.ds = NetcdfDataset.openDataset(netCDFFile.getAbsolutePath());
        } catch (IOException e) {
            throw new ItemStreamException(e);
        }

    }