com.gisgraphy.importer
Class AbstractFileRetriever

java.lang.Object
  com.gisgraphy.importer.AbstractFileRetriever

All Implemented Interfaces:

IImporterProcessor

Direct Known Subclasses:

GeonamesFileRetriever, GeonamesZipCodeFileRetriever, OpenStreetMapFileRetriever

public abstract class AbstractFileRetriever
extends Object
implements IImporterProcessor

Base class to download files from a server

Author:

David Masclet

Field Summary

protected String	currentFileName
protected int	fileIndex
protected ImporterConfig	importerConfig
protected static org.slf4j.Logger	logger The logger
protected int	numberOfFileToDownload
protected ImporterStatus	status
protected String	statusMessage

Constructor Summary

AbstractFileRetriever()

Method Summary

abstract void	decompressFiles() Method to call if files must be decompress (untar or unzip)
protected void	downloadFile(String file)
protected void	downloadFiles()
String	getCurrentFileName()
abstract String	getDownloadBaseUrl()
abstract String	getDownloadDirectory()
abstract File[]	getFilesToDecompress() return an array of file that are to be decompressed
long	getNumberOfLinesToProcess()
long	getReadFileLine() The number of read line for the current processed file
ImporterStatus	getStatus()
String	getStatusMessage()
long	getTotalReadLine() The number of read line for all the processed file
abstract boolean	isFileNotFoundTolerant()
void	process() Do the stuff...
void	resetStatus() Reset status fields, it should be done when the import has been canceled
List<NameValueDTO<Integer>>	rollback() /!
void	setImporterConfig(ImporterConfig importerConfig)
void	setInternationalisationService(IInternationalisationService internationalisationService)
boolean	shouldBeSkipped()

Methods inherited from class java.lang.Object

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

Field Detail

importerConfig

protected ImporterConfig importerConfig

currentFileName

protected String currentFileName

status

protected ImporterStatus status

fileIndex

protected int fileIndex

numberOfFileToDownload

protected int numberOfFileToDownload

statusMessage

protected String statusMessage

logger

protected static final org.slf4j.Logger logger

The logger

Constructor Detail

AbstractFileRetriever

public AbstractFileRetriever()

Method Detail

process

public void process()
             throws ImporterException

Description copied from interface: IImporterProcessor

Do the stuff...

Specified by:

process in interface IImporterProcessor

Throws:

ImporterException

downloadFiles

protected void downloadFiles()

downloadFile

protected void downloadFile(String file)
                     throws FileNotFoundException

Throws:

FileNotFoundException

isFileNotFoundTolerant

public abstract boolean isFileNotFoundTolerant()

Returns:

false if download files that doesn't exists on the remote server should throw

shouldBeSkipped

public boolean shouldBeSkipped()

Specified by:

shouldBeSkipped in interface IImporterProcessor

Returns:

true if the processor should Not be executed

decompressFiles

public abstract void decompressFiles()
                              throws IOException

Method to call if files must be decompress (untar or unzip)

Throws:

IOException

getFilesToDecompress

public abstract File[] getFilesToDecompress()
                                     throws IOException

return an array of file that are to be decompressed

Throws:

IOException

getDownloadDirectory

public abstract String getDownloadDirectory()

Returns:

The directory where the file should be downloaded

getDownloadBaseUrl

public abstract String getDownloadBaseUrl()

Returns:

the base URL from wich the file should be downloaded

getReadFileLine

public long getReadFileLine()

Description copied from interface: IImporterProcessor

The number of read line for the current processed file

Specified by:

getReadFileLine in interface IImporterProcessor

See Also:

IImporterProcessor.getTotalReadLine()

getTotalReadLine

public long getTotalReadLine()

Description copied from interface: IImporterProcessor

The number of read line for all the processed file

Specified by:

getTotalReadLine in interface IImporterProcessor

See Also:

IImporterProcessor.getReadFileLine()

getCurrentFileName

public String getCurrentFileName()

Specified by:

getCurrentFileName in interface IImporterProcessor

Returns:

The name of the file currently processed or null if no file is processed

getNumberOfLinesToProcess

public long getNumberOfLinesToProcess()

Specified by:

getNumberOfLinesToProcess in interface IImporterProcessor

Returns:

The number of line the processor will process. (it is not the number of lines left!)

getStatus

public ImporterStatus getStatus()

Specified by:

getStatus in interface IImporterProcessor

Returns:

The current status of the importer

getStatusMessage

public String getStatusMessage()

Specified by:

getStatusMessage in interface IImporterProcessor

Returns:

A text Message for the importer

rollback

public List<NameValueDTO<Integer>> rollback()

Description copied from interface: IImporterProcessor

/!\ USE THIS METHOD VERY CAREFULLY /!\ : If you call this function, all the imported data for the specified importer will be deleted

Specified by:

rollback in interface IImporterProcessor

Returns:

a NameValueDTO with the name of the deleted object and the number of deleted Object. No entry will be return for Object that were 0 object will be deleted except if an error occurred during the deletion.

resetStatus

public void resetStatus()

Description copied from interface: IImporterProcessor

Reset status fields, it should be done when the import has been canceled

Specified by:

resetStatus in interface IImporterProcessor

setImporterConfig

public void setImporterConfig(ImporterConfig importerConfig)

Parameters:

importerConfig - The importerConfig to set

setInternationalisationService

public void setInternationalisationService(IInternationalisationService internationalisationService)

Parameters:

internationalisationService - the internationalisationService to set