use of org.apache.drill.exec.planner.sql.parser.SqlDescribeSchema in project drill by apache.
the class DescribeSchemaHandler method getPlan.
@Override
public PhysicalPlan getPlan(SqlNode sqlNode) {
SqlIdentifier schema = ((SqlDescribeSchema) sqlNode).getSchema();
SchemaPlus drillSchema = SchemaUtilites.findSchema(config.getConverter().getDefaultSchema(), schema.names);
if (drillSchema != null) {
StoragePlugin storagePlugin;
try {
storagePlugin = context.getStorage().getPlugin(schema.names.get(0));
} catch (ExecutionSetupException e) {
throw new DrillRuntimeException("Failure while retrieving storage plugin", e);
}
String properties;
try {
final Map configMap = mapper.convertValue(storagePlugin.getConfig(), Map.class);
if (storagePlugin instanceof FileSystemPlugin) {
transformWorkspaces(schema.names, configMap);
}
properties = mapper.writeValueAsString(configMap);
} catch (JsonProcessingException e) {
throw new DrillRuntimeException("Error while trying to convert storage config to json string", e);
}
return DirectPlan.createDirectPlan(context, new DescribeSchemaResult(Joiner.on(".").join(schema.names), properties));
}
throw UserException.validationError().message(String.format("Invalid schema name [%s]", Joiner.on(".").join(schema.names))).build(logger);
}
Aggregations