org.apache.hadoop.hive.common.cli

Class HiveFileProcessor

java.lang.Object

org.apache.hadoop.hive.common.cli.HiveFileProcessor

All Implemented Interfaces:

IHiveFileProcessor

public abstract class HiveFileProcessor
extends Object
implements IHiveFileProcessor

HiveFileProcessor is used for processing a file consist of Hive executable statements

Constructor Summary

Constructors

Constructor and Description
HiveFileProcessor()

Method Summary

Methods

Modifier and Type	Method and Description
protected abstract BufferedReader	loadFile(String fileName) load commands into buffered reader from the file
protected abstract int	processCmd(String cmd) define the processor for each Hive command supported by Hive
int	processFile(String fileName) Parse the file and execute the Hive commands in it.
protected int	processLine(String line) process the Hive command by lines
protected int	processReader(BufferedReader reader) execute the buffered reader which stores the commands

Methods inherited from class java.lang.Object

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

Constructor Detail

HiveFileProcessor

public HiveFileProcessor()

Method Detail

processFile

public int processFile(String fileName)
                throws IOException

Description copied from interface: IHiveFileProcessor

Parse the file and execute the Hive commands in it.

Specified by:

processFile in interface IHiveFileProcessor

Parameters:

fileName - the name of the file

Throws:

IOException - if an I/O error occurs.

loadFile

protected abstract BufferedReader loadFile(String fileName)
                                    throws IOException

load commands into buffered reader from the file

Parameters:

fileName -

Returns:

Throws:

IOException

processReader

protected int processReader(BufferedReader reader)
                     throws IOException

execute the buffered reader which stores the commands

Parameters:

reader - the buffered reader

Returns:

the return code of the execution result

Throws:

IOException

processLine

protected int processLine(String line)

process the Hive command by lines

Parameters:

line - contains a legal Hive command

Returns:

the return code of the execution result

processCmd

protected abstract int processCmd(String cmd)

define the processor for each Hive command supported by Hive

Parameters:

cmd -

Returns:

the return code of the execution result