/**
* Checks the name and schema for known compatibility issues and warns.
*
* <p>If the column names are not compatible across components, this will warn the user.
*
* @param namespace a String namespace
* @param datasetName a String dataset name
* @param schema a {@link Schema}
*/
public static void checkAndWarn(String namespace, String datasetName, Schema schema) {
try {
checkDatasetName(namespace, datasetName);
checkSchema(schema);
} catch (IllegalArgumentException e) {
LOG.warn(e.getMessage());
} catch (IllegalStateException e) {
LOG.warn(e.getMessage());
}
}
/**
* Checks the name and descriptor for known compatibility issues and warns.
*
* <p>If the column names are not compatible across components or if any partition name duplicates
* its source field name, this will warn the user.
*
* @param namespace a String namespace
* @param name a String dataset name
* @param descriptor a {@link DatasetDescriptor}
*/
public static void checkAndWarn(String namespace, String name, DatasetDescriptor descriptor) {
try {
checkDatasetName(namespace, name);
checkDescriptor(descriptor);
} catch (IllegalArgumentException e) {
LOG.warn(e.getMessage());
} catch (IllegalStateException e) {
LOG.warn(e.getMessage());
}
}
@Override
public boolean delete(String name) {
Compatibility.checkDatasetName(name);
// TODO: when switching off of HCatalog, this may need to be moved
if (!exists(name)) {
return false;
}
getHcat().dropTable(HiveUtils.DEFAULT_DB, name);
return true;
}
@Override
public DatasetDescriptor update(String name, DatasetDescriptor descriptor) {
Compatibility.checkDatasetName(name);
Compatibility.checkDescriptor(descriptor);
if (!exists(name)) {
throw new DatasetNotFoundException("Table not found: " + name);
}
Table table = getHcat().getTable(HiveUtils.DEFAULT_DB, name);
HiveUtils.updateTableSchema(table, descriptor);
getHcat().alterTable(table);
return descriptor;
}
@Override
public boolean exists(String name) {
Compatibility.checkDatasetName(name);
return getHcat().exists(HiveUtils.DEFAULT_DB, name);
}