01659bc50c
## What changes were proposed in this pull request? Currently command `ADD FILE|JAR <filepath | jarpath>` is supported natively in SparkSQL. However, when this command is run, the file/jar is added to the resources that can not be looked up by `LIST FILE(s)|JAR(s)` command because the `LIST` command is passed to Hive command processor in Spark-SQL or simply not supported in Spark-shell. There is no way users can find out what files/jars are added to the spark context. Refer to [Hive commands](https://cwiki.apache.org/confluence/display/Hive/LanguageManual+Cli) This PR is to support following commands: `LIST (FILE[s] [filepath ...] | JAR[s] [jarfile ...])` ### For example: ##### LIST FILE(s) ``` scala> spark.sql("add file hdfs://bdavm009.svl.ibm.com:8020/tmp/test.txt") res1: org.apache.spark.sql.DataFrame = [] scala> spark.sql("add file hdfs://bdavm009.svl.ibm.com:8020/tmp/test1.txt") res2: org.apache.spark.sql.DataFrame = [] scala> spark.sql("list file hdfs://bdavm009.svl.ibm.com:8020/tmp/test1.txt").show(false) +----------------------------------------------+ |result | +----------------------------------------------+ |hdfs://bdavm009.svl.ibm.com:8020/tmp/test1.txt| +----------------------------------------------+ scala> spark.sql("list files").show(false) +----------------------------------------------+ |result | +----------------------------------------------+ |hdfs://bdavm009.svl.ibm.com:8020/tmp/test1.txt| |hdfs://bdavm009.svl.ibm.com:8020/tmp/test.txt | +----------------------------------------------+ ``` ##### LIST JAR(s) ``` scala> spark.sql("add jar /Users/xinwu/spark/core/src/test/resources/TestUDTF.jar") res9: org.apache.spark.sql.DataFrame = [result: int] scala> spark.sql("list jar TestUDTF.jar").show(false) +---------------------------------------------+ |result | +---------------------------------------------+ |spark://192.168.1.234:50131/jars/TestUDTF.jar| +---------------------------------------------+ scala> spark.sql("list jars").show(false) +---------------------------------------------+ |result | +---------------------------------------------+ |spark://192.168.1.234:50131/jars/TestUDTF.jar| +---------------------------------------------+ ``` ## How was this patch tested? New test cases are added for Spark-SQL, Spark-Shell and SparkContext API code path. Author: Xin Wu <xinwu@us.ibm.com> Author: xin Wu <xinwu@us.ibm.com> Closes #13212 from xwu0226/list_command. |
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