oracle.spatial.hadoop.vector.data.cmd

Class InputDataSetCmdArgsParserHandler

java.lang.Object

oracle.spatial.hadoop.vector.data.cmd.InputDataSetCmdArgsParserHandler

Direct Known Subclasses:

DynamicInputDataSetCmdArgsParserHandler

public abstract class InputDataSetCmdArgsParserHandler
extends java.lang.Object

Defines a handler of InputDataSetCmdArgsParser instances. Given An implementation of this class will look for the parser which is most suitable InputDataSetCmdArgsParser for creating an instance of an input data set given the command line parameters.

Author:

hsaucedo

Constructor Summary

Constructors

Constructor and Description
InputDataSetCmdArgsParserHandler()

Method Summary

Modifier and Type	Method and Description
void	getCmdArgs(AbstractInputDataSet dataSet, java.util.Map<java.lang.String,java.lang.Object> cmdArgs, Configuration conf) Gets the command line arguments used to get the current state of the given input data set
abstract java.util.List<InputDataSetCmdArgsParser>	getParsers(Configuration conf) Gets the current parsers chain
AbstractInputDataSet	parse(CmdArgsParser argsp, Configuration conf) Finds the appropriate instance of InputDataSetCmdArgsParser for the given command line arguments and then creates the input data set instance by calling the method InputDataSetCmdArgsParser.parseCmdArgs(CmdArgsParser, Configuration) on the parser.

Methods inherited from class java.lang.Object

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

Constructor Detail

InputDataSetCmdArgsParserHandler

public InputDataSetCmdArgsParserHandler()

Method Detail

getCmdArgs

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

Gets the command line arguments used to get the current state of the given input data set

Parameters:

dataSet - an instance of AbstractInputDataSet

cmdArgs - a map containing the command line arguments

conf - a job configuration

getParsers

public abstract java.util.List<InputDataSetCmdArgsParser> getParsers(Configuration conf)

Gets the current parsers chain

Parameters:

conf - a job configuration

Returns:

a list of instances of InputDataSetCmdArgsParser

parse

public AbstractInputDataSet parse(CmdArgsParser argsp,
                                  Configuration conf)

Finds the appropriate instance of InputDataSetCmdArgsParser for the given command line arguments and then creates the input data set instance by calling the method InputDataSetCmdArgsParser.parseCmdArgs(CmdArgsParser, Configuration) on the parser.

Parameters:

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

conf - a job configuration

Returns:

an instance of AbstractInputDataSet