pvary commented on a change in pull request #2129:
URL: https://github.com/apache/iceberg/pull/2129#discussion_r564343558
##########
File path: mr/src/main/java/org/apache/iceberg/mr/Catalogs.java
##########
@@ -180,47 +189,87 @@ public static boolean dropTable(Configuration conf,
Properties props) {
/**
* Returns true if HiveCatalog is used
* @param conf a Hadoop conf
+ * @param props the controlling properties
* @return true if the Catalog is HiveCatalog
*/
- public static boolean hiveCatalog(Configuration conf) {
- return HIVE.equalsIgnoreCase(conf.get(InputFormatConfig.CATALOG));
+ public static boolean hiveCatalog(Configuration conf, Properties props) {
+ String catalogName = props.getProperty(InputFormatConfig.TABLE_CATALOG);
+ return HIVE.equalsIgnoreCase(getCatalogType(conf, catalogName));
}
@VisibleForTesting
- static Optional<Catalog> loadCatalog(Configuration conf) {
- String catalogLoaderClass =
conf.get(InputFormatConfig.CATALOG_LOADER_CLASS);
-
- if (catalogLoaderClass != null) {
- CatalogLoader loader = (CatalogLoader)
DynConstructors.builder(CatalogLoader.class)
- .impl(catalogLoaderClass)
- .build()
- .newInstance();
- Catalog catalog = loader.load(conf);
- LOG.info("Loaded catalog {} using {}", catalog, catalogLoaderClass);
- return Optional.of(catalog);
- }
+ static Optional<Catalog> loadCatalog(Configuration conf, String catalogName)
{
+ String name = catalogName == null ? DEFAULT_CATALOG : catalogName;
+ String catalogType = getCatalogType(conf, name);
+ return loadCatalog(conf, name, catalogType);
+ }
- String catalogName = conf.get(InputFormatConfig.CATALOG);
+ private static Optional<Catalog> loadCatalog(Configuration conf, String
catalogName, String catalogType) {
+ if (catalogType == null) {
+ LOG.info("Catalog is not configured");
+ return Optional.empty();
+ }
- if (catalogName != null) {
- Catalog catalog;
- switch (catalogName.toLowerCase()) {
- case HADOOP:
+ Map<String, String> properties = getCatalogProperties(conf, catalogName);
+ Catalog catalog;
+ switch (catalogType.toLowerCase()) {
+ case HADOOP:
+ if (properties.containsKey(CatalogProperties.WAREHOUSE_LOCATION)) {
+ catalog = CatalogUtil.loadCatalog(HadoopCatalog.class.getName(),
catalogName, properties, conf);
+ } else {
String warehouseLocation =
conf.get(InputFormatConfig.HADOOP_CATALOG_WAREHOUSE_LOCATION);
-
catalog = (warehouseLocation != null) ? new HadoopCatalog(conf,
warehouseLocation) : new HadoopCatalog(conf);
- LOG.info("Loaded Hadoop catalog {}", catalog);
+ }
+ LOG.info("Loaded Hadoop catalog {}", catalog);
+ return Optional.of(catalog);
+ case HIVE:
+ catalog = HiveCatalogs.loadCatalog(catalogName, properties, conf);
+ LOG.info("Loaded Hive Metastore catalog {}", catalog);
+ return Optional.of(catalog);
+ case CUSTOM:
+ if (properties.containsKey(CatalogProperties.CLASS)) {
+ String catalogLoaderClass = properties.get(CatalogProperties.CLASS);
+ catalog = CatalogUtil.loadCatalog(catalogLoaderClass, catalogName,
properties, conf);
+ LOG.info("Loaded catalog {} using {}", catalog, catalogLoaderClass);
return Optional.of(catalog);
- case HIVE:
- catalog = HiveCatalogs.loadCatalog(conf);
- LOG.info("Loaded Hive Metastore catalog {}", catalog);
+ } else if (conf.get(InputFormatConfig.CATALOG_LOADER_CLASS) != null) {
+ String catalogLoaderClass =
conf.get(InputFormatConfig.CATALOG_LOADER_CLASS);
+ CatalogLoader loader = (CatalogLoader)
DynConstructors.builder(CatalogLoader.class)
+ .impl(catalogLoaderClass)
+ .build()
+ .newInstance();
+ catalog = loader.load(conf);
+ LOG.info("Loaded catalog {} using {}", catalog, catalogLoaderClass);
return Optional.of(catalog);
- default:
- throw new NoSuchNamespaceException("Catalog %s is not supported.",
catalogName);
- }
+ } else {
+ return Optional.empty();
+ }
+ default:
+ throw new NoSuchNamespaceException("Catalog %s is not supported.",
catalogType);
}
+ }
+
+ private static Map<String, String> getCatalogProperties(Configuration conf,
String catalogName) {
+ Map<String, String> properties = new HashMap<>();
+ conf.iterator().forEachRemaining(e -> {
Review comment:
I am not sure about this because of performance reasons, but what do you
think about this:
```
Map<String, String> result = asStream(conf.iterator())
.filter(e -> e.getKey().startsWith(keyPrefix))
.collect(Collectors.toMap(
e -> e.getKey().substring(keyPrefix.length() + 1),
e -> e.getValue()));
```
With the following Iterator -> Stream method found on StackOverflow, or with
just directly calling the stuff
```
public class StreamUtils {
public static <T> Stream<T> asStream(Iterator<T> sourceIterator) {
return asStream(sourceIterator, false);
}
public static <T> Stream<T> asStream(Iterator<T> sourceIterator, boolean
parallel) {
Iterable<T> iterable = () -> sourceIterator;
return StreamSupport.stream(iterable.spliterator(), parallel);
}
}
```
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