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// This Source Code is in the Public Domain per: http://litesoft.org/License.txt
package org.litesoft.orsup;
import java.io.*;
import java.util.*;
import org.litesoft.configuration.Configuration;
import org.litesoft.configuration.ServerConfiguration;
import org.litesoft.exceptions.*;
import org.litesoft.util.*;
public class DataLoader
{
public static final DataLoader INSTANCE = new DataLoader();
public static final String DEFAULT_LOAD_DATA_RELATIVE_DIR_PARENT_PATH = "LoadData";
public static final String DEFAULT_LOAD_DATA_SUB_DIR_REGULAR = "Default";
public static final String DEFAULT_LOAD_DATA_SUB_DIR_DEMO = "Demo";
public static final String PROPERTY_LOAD_DATA_PATH = "LoadDataPath";
public static final String PROPERTY_LOAD_DATA_DIR_PARENT_PATH = "LoadDataDirParentPath";
public static final String PROPERTY_LOAD_DATA_SUB_DIR = "LoadDataSubDir";
private String getSubDirPath( String pSubDir )
{
String parent = ServerConfiguration.getPath(PROPERTY_LOAD_DATA_DIR_PARENT_PATH, DEFAULT_LOAD_DATA_RELATIVE_DIR_PARENT_PATH);
return parent + "/" + pSubDir;
}
public void loadData()
{
String zLoadDataPath = ServerConfiguration.getPath(PROPERTY_LOAD_DATA_PATH, null);
if ( zLoadDataPath == null )
{
zLoadDataPath = getSubDirPath(Configuration.getString(PROPERTY_LOAD_DATA_SUB_DIR,DEFAULT_LOAD_DATA_SUB_DIR_REGULAR));
}
loadDataFrom( zLoadDataPath );
}
public void loadDataFrom( String zLoadDataPath )
{
try
{
File zLoadDir = new File( zLoadDataPath );
String[] zFilesToLoad = getFileNames( zLoadDir );
DB_Import.importCSV( zLoadDir, zFilesToLoad );
}
catch ( IOException e )
{
throw new RuntimeException( e );
}
}
public void loadDemoData()
{
synchronized ( getClass() )
{
if ( mCSVtoMemo == null )
{
mCSVtoMemo = loadDemoDataMemo();
}
}
loadMemoDemoData( mCSVtoMemo );
}
private Object mCSVtoMemo = null;
private Object loadDemoDataMemo()
{
try
{
File zLoadDir = new File( getSubDirPath(DEFAULT_LOAD_DATA_SUB_DIR_DEMO) );
String[] zFilesToLoad = getFileNames( zLoadDir );
return DB_Import.importCSVtoMemo( FileUtils.filesToReaders( zLoadDir, zFilesToLoad ) );
}
catch ( IOException e )
{
throw new RuntimeException( e );
}
}
private void loadMemoDemoData( Object pCSVtoMemo )
{
try
{
File zLoadDir = new File( getSubDirPath(DEFAULT_LOAD_DATA_SUB_DIR_DEMO) );
DB_Import.importCSVfromMemo( zLoadDir, pCSVtoMemo );
}
catch ( IOException e )
{
throw new RuntimeException( e );
}
}
private String[] getFileNames( File pLoadDir )
{
FilenameFilter zCSV_FilesFilter = FileUtils.createFileNameFilter( Utils.parseChar( "*.csv", '*' ) );
String[] zFilesToLoad = pLoadDir.list( zCSV_FilesFilter );
if ( Utils.isNullOrEmpty( zFilesToLoad ) )
{
throw new DisplayableRuntimeException( "No Load Data Files at: " + pLoadDir.getAbsolutePath() );
}
Arrays.sort( zFilesToLoad );
return zFilesToLoad;
}
}
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