org.apache.hadoop.hive.ql.exec

Class ParsedOutputFileName

java.lang.Object

org.apache.hadoop.hive.ql.exec.ParsedOutputFileName

public class ParsedOutputFileName
extends Object

Helper class to match hive filenames and extract taskId, taskAttemptId, copyIndex. Matches following: 00001_02 00001_02.gz 00001_02.zlib.gz 00001_02_copy_1 00001_02_copy_1.gz

All the components are here: tmp_(taskPrefix)00001_02_copy_1.zlib.gz

Method Summary

Modifier and Type	Method and Description
String	getAttemptId()
String	getCopyIndex()
String	getPrefixedTaskId()
String	getSuffix()
String	getTaskId()
String	getTaskIdPrefix()
boolean	isCopyFile()
String	makeFilenameWithCopyIndex(int idx) Create a copy file using the same file name as this and the given index.
boolean	matches()
static ParsedOutputFileName	parse(String fileName)
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

parse

public static ParsedOutputFileName parse(String fileName)

matches

public boolean matches()

getTaskIdPrefix

public String getTaskIdPrefix()

getTaskId

public String getTaskId()

getPrefixedTaskId

public String getPrefixedTaskId()

getAttemptId

public String getAttemptId()

isCopyFile

public boolean isCopyFile()

getCopyIndex

public String getCopyIndex()

getSuffix

public String getSuffix()

makeFilenameWithCopyIndex

public String makeFilenameWithCopyIndex(int idx)
                                 throws HiveException

Create a copy file using the same file name as this and the given index. It will keep the prefixes but drop any suffixes. Ex: 00001_02 will be converted to 00001_02_copy_3 for idx = 3. tmp_(prefix)00001_02_copy_1.snappy.orc will be converted to tmp_(prefix)00001_02_copy_3 for idx = 3

Parameters:

idx - The index required.

Returns:

Throws:

HiveException

toString

public String toString()

Overrides:

toString in class Object