Package dev.frostlake.executor

Class StageFileResolver

java.lang.Object

dev.frostlake.executor.StageFileResolver

All Implemented Interfaces:

StageFileLocator

public class StageFileResolver
extends Object
implements StageFileLocator

Resolves the stage references TO_FILE is given, reusing the executor's own QueryExecutor.resolveCopyBaseDir(String) — the one place that already knows how @stage, @db.schema.stage, @~ and @%table map onto local directories. Only the two descriptor-facing names are computed here.

The STAGE display was measured live. A named stage always renders fully qualified and upper-cased regardless of how the caller wrote it — from a session on PROBE135B_DB.OTHER, TO_FILE('@s.sse2/hello.txt') reports @PROBE135B_DB.S.SSE2 — so missing parts are filled from the current database and schema. The user stage renders @"~" and a table stage renders the bare upper-cased table name (@TSTG), with no database or schema even when the reference carried one.

Constructor Summary

Constructors

Constructor	Description
StageFileResolver(QueryExecutor executor, Catalog catalog)

Method Summary

Modifier and Type	Method	Description
StagedFile	locate(String location)	Resolve a stage reference to the file it names.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

StageFileResolver

public StageFileResolver(QueryExecutor executor,
 Catalog catalog)

Method Details

locate

public StagedFile locate(String location)

Description copied from interface: StageFileLocator

Resolve a stage reference to the file it names.

Specified by:

locate in interface StageFileLocator

Parameters:

location - a stage reference: @stage/path, @db.schema.stage/path, @~/path or @%table/path

Returns:

the resolved file, or null when the reference names no stage this engine can reach (the caller turns that into Snowflake's "was not found" error)