oracle.spatial.hadoop.vector.data.cmd

Class MultiInputDataSetCmdArgsParser

java.lang.Object

oracle.spatial.hadoop.vector.data.cmd.MultiInputDataSetCmdArgsParser

All Implemented Interfaces:

InputDataSetCmdArgsParser

public class MultiInputDataSetCmdArgsParser
extends java.lang.Object
implements InputDataSetCmdArgsParser

An implementation of InputDataSetCmdArgsParser to parse command line arguments for input data sets of type MultiInputDataSet
Internally, it uses an implementation of InputDataSetCmdArgsParserHandler to parse the parameters of the nested input data sets

Author:

hsaucedo

Constructor Summary

Constructors

Constructor and Description
MultiInputDataSetCmdArgsParser(InputDataSetCmdArgsParserHandler parserHandler, Configuration conf) Creates a new instance

Method Summary

Modifier and Type	Method and Description
boolean	acceptsCmdArgs(CmdArgsParser argsp, Configuration conf) Returns true if the implementation can create an instance of AbstractInputDataSet given the command line arguments encapsulated by argsp
void	getCmdArgs(AbstractInputDataSet dataSet, java.util.Map<java.lang.String,java.lang.Object> cmdArgs) Converts the current input data set properties to command line parameters which are added to the passed cmdArgs map.
java.lang.String	getCmdOptions() Gets a descriptive text about the parameters expected
java.lang.String	getInputDataSetDescription() Gets a description of the input data set created by the current parser implementation
InputDataSetCmdArgsParserHandler	getParserHandler() Gets the current instance of InputDataSetCmdArgsParserHandler
AbstractInputDataSet	parseCmdArgs(CmdArgsParser argsp, Configuration conf) Processes the command line arguments and creates an instance of AbstractInputDataSet

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiInputDataSetCmdArgsParser

public MultiInputDataSetCmdArgsParser(InputDataSetCmdArgsParserHandler parserHandler,
                                      Configuration conf)

Creates a new instance

Parameters:

parserHandler - an implementation of InputDataSetCmdArgsParserHandler which is used to parse nested data sets

conf - a job configuration

Method Detail

acceptsCmdArgs

public boolean acceptsCmdArgs(CmdArgsParser argsp,
                              Configuration conf)

Description copied from interface: InputDataSetCmdArgsParser

Returns true if the implementation can create an instance of AbstractInputDataSet given the command line arguments encapsulated by argsp

Specified by:

acceptsCmdArgs in interface InputDataSetCmdArgsParser

Parameters:

argsp - an instance of CmdArgsParser which contains the command line parameters

conf - a job configuration

Returns:

true if the implementation can create an instance of AbstractInputDataSet given the command line arguments

getCmdArgs

public void getCmdArgs(AbstractInputDataSet dataSet,
                       java.util.Map<java.lang.String,java.lang.Object> cmdArgs)

Description copied from interface: InputDataSetCmdArgsParser

Converts the current input data set properties to command line parameters which are added to the passed cmdArgs map.
If the given data set contains nested data sets (which is the case of MultiInputDataSet), a new map can be added to cmdArgs with the key defined by CmdArgs.INPUT_LIST

Specified by:

getCmdArgs in interface InputDataSetCmdArgsParser

Parameters:

dataSet - an input data set

cmdArgs - a map which key value pairs represent command line parameters.

getCmdOptions

public java.lang.String getCmdOptions()

Description copied from interface: InputDataSetCmdArgsParser

Gets a descriptive text about the parameters expected

Specified by:

getCmdOptions in interface InputDataSetCmdArgsParser

Returns:

a text containing the parameters and values expected

getInputDataSetDescription

public java.lang.String getInputDataSetDescription()

Description copied from interface: InputDataSetCmdArgsParser

Gets a description of the input data set created by the current parser implementation

Specified by:

getInputDataSetDescription in interface InputDataSetCmdArgsParser

Returns:

a textual description

getParserHandler

public InputDataSetCmdArgsParserHandler getParserHandler()

Gets the current instance of InputDataSetCmdArgsParserHandler

Returns:

a parser handler

parseCmdArgs

public AbstractInputDataSet parseCmdArgs(CmdArgsParser argsp,
                                         Configuration conf)

Description copied from interface: InputDataSetCmdArgsParser

Processes the command line arguments and creates an instance of AbstractInputDataSet

Specified by:

parseCmdArgs in interface InputDataSetCmdArgsParser

Parameters:

argsp - an instance of CmdArgsParser which contains the command line parameters

conf - a job configuration

Returns:

an instance of AbstractInputDataSet