gr.uoa.di.madgik.searchlibrary.operatorlibrary
Class IOHandler

java.lang.Object
  gr.uoa.di.madgik.searchlibrary.operatorlibrary.IOHandler

public class IOHandler
extends Object

Initializes the DataSource and DataSink classes.

Author:

john.gerbesiotis - DI NKUA

Constructor Summary

IOHandler()

Method Summary

static DataSink	getDataSink(URI inLocator, String outputType, String outputValue, Map<String,String> outputParameters, gr.uoa.di.madgik.searchlibrary.operatorlibrary.stats.StatsContainer stats) Initializes and returns a DataSink object.
static DataSource	getDataSource(String inputType, String inputValue, Map<String,String> inputParameters) Initializes and returns a DataSource object.
static void	init(String dataHandlersConfigFile) Initializes the IOHandler by reading the available data handlers from a configuration file.

Methods inherited from class java.lang.Object

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

Constructor Detail

IOHandler

public IOHandler()

Method Detail

init

public static void init(String dataHandlersConfigFile)
                 throws Exception

Initializes the IOHandler by reading the available data handlers from a configuration file.

Parameters:

dataHandlersConfigFile - The configuration file from which the IOHandler will read or null for default config

Throws:

Exception - If initialization fails

getDataSource

public static DataSource getDataSource(String inputType,
                                       String inputValue,
                                       Map<String,String> inputParameters)
                                throws Exception

Initializes and returns a DataSource object.

Parameters:

inputType - The input type

inputValue - The input value

inputParameters - The parameters of the input

Returns:

The DataSource object

Throws:

Exception - If an error occurred in initializing the DataSource

getDataSink

public static DataSink getDataSink(URI inLocator,
                                   String outputType,
                                   String outputValue,
                                   Map<String,String> outputParameters,
                                   gr.uoa.di.madgik.searchlibrary.operatorlibrary.stats.StatsContainer stats)
                            throws Exception

Initializes and returns a DataSink object.

Parameters:

inLocator - The input locator

outputType - The output type

outputValue - The output value

outputParameters - The parameters of the output

stats - The statistics container

Returns:

The DataSink object

Throws:

Exception - If an error occurred in initializing the DataSink