// read in the index, index raf already open
public static GribCollection createFromIndex(
String name, File directory, RandomAccessFile raf, FeatureCollectionConfig.GribConfig config)
throws IOException {
Grib2CollectionBuilder builder = new Grib2CollectionBuilder(name, directory, config);
if (builder.readIndex(raf)) return builder.gc;
throw new IOException("Reading index failed");
}
// called by tdm
public static boolean update(CollectionManager dcm, Formatter f) throws IOException {
Grib2CollectionBuilder builder = new Grib2CollectionBuilder(dcm);
if (!builder.needsUpdate()) return false;
builder.readOrCreateIndex(CollectionManager.Force.always, f);
builder.gc.close();
return true;
}
// from a single file, read in the index, create if it doesnt exist
public static GribCollection readOrCreateIndexFromSingleFile(
MFile file,
CollectionManager.Force force,
FeatureCollectionConfig.GribConfig config,
Formatter f)
throws IOException {
Grib2CollectionBuilder builder = new Grib2CollectionBuilder(file, config, f);
builder.readOrCreateIndex(force, f);
return builder.gc;
}
// this writes the index always
public static boolean writeIndexFile(File indexFile, CollectionManager dcm, Formatter f)
throws IOException {
Grib2CollectionBuilder builder = new Grib2CollectionBuilder(dcm);
return builder.createIndex(indexFile, CollectionManager.Force.always, f);
}
// from a collection, read in the index, create if it doesnt exist or is out of date
// assume that the CollectionManager is up to date, eg doesnt need to be scanned
public static GribCollection factory(
CollectionManager dcm, CollectionManager.Force force, Formatter f) throws IOException {
Grib2CollectionBuilder builder = new Grib2CollectionBuilder(dcm);
builder.readOrCreateIndex(force, f);
return builder.gc;
}
// from a single file, read in the index, create if it doesnt exist
public static GribCollection createFromSingleFile(
File file, CollectionManager.Force force, Formatter f) throws IOException {
Grib2CollectionBuilder builder = new Grib2CollectionBuilder(file, f);
builder.readOrCreateIndex(force, f);
return builder.gc;
}