Github user hvanhovell commented on a diff in the pull request:
https://github.com/apache/spark/pull/12117#discussion_r58317032
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/functionResources.scala
---
@@ -0,0 +1,56 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.spark.sql.catalyst.catalog
+
+import org.apache.spark.sql.AnalysisException
+
+/** An trait that represents the type of a resourced needed by a function.
*/
+sealed trait FunctionResourceType
+
+object JarResource extends FunctionResourceType
+
+object FileResource extends FunctionResourceType
+
+// We do nto allow users to specify a archive because it is YARN specific.
+// When loading resources, we will throw an exception and ask users to
+// use --archive with spark submit.
+object ArchiveResource extends FunctionResourceType
+
+object FunctionResourceType {
+ def fromString(resourceType: String): FunctionResourceType = {
--- End diff --
Couple of questions.
1. Is `FunctionResourceType` not a broader concept, i.e. `ResourceType`?
Are there any other places we should use this (not to be done in this PR!).
2. Shouldn't the resource specified for function by pairs of
`FunctionResourceType` and `String`?
3. The `SparkSqlParser` currently does something similar, see:
https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkSqlParser.scala#L303-L309
We could integrate this.
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