/*
* Copyright (C) 2012, Katy Hilgenberg.
* Special acknowledgments to: Knowledge & Data Engineering Group, University of Kassel (http://www.kde.cs.uni-kassel.de).
* Contact: sdcf@cs.uni-kassel.de
*
* This file is part of the SDCFramework (Sensor Data Collection Framework) project.
*
* The SDCFramework is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The SDCFramework is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the SDCFramework. If not, see <http://www.gnu.org/licenses/>.
*/
package de.unikassel.android.sdcframework.provider;
import java.util.HashMap;
import android.net.Uri;
import android.provider.BaseColumns;
import de.unikassel.android.sdcframework.provider.facade.ContentProviderData;
/**
* Abstract base class for content provider types
*
* @author Katy Hilgenberg
*
*/
public abstract class AbstractContentProviderData
implements ContentProviderData, BaseColumns
{
/*
* (non-Javadoc)
*
* @see
* de.unikassel.android.sdcframework.provider.facade.ContentProviderData#getDBName
* ()
*/
@Override
public final String getDBName()
{
return getContentTypeName() + ".db";
}
/*
* (non-Javadoc)
*
* @seede.unikassel.android.sdcframework.provider.facade.ContentProviderData#
* getDBTableName()
*/
@Override
public final String getDBTableName()
{
return getContentTypeName();
}
/**
* Constructor
*/
public AbstractContentProviderData()
{}
/*
* (non-Javadoc)
*
* @seede.unikassel.android.sdcframework.provider.facade.ContentProviderData#
* getAuthority()
*/
@Override
public final String getAuthority()
{
return "de.unikassel.android.sdcframework.provider." +
getContentTypeName() + "provider";
}
/*
* (non-Javadoc)
*
* @seede.unikassel.android.sdcframework.provider.facade.ContentProviderData#
* getContentType()
*/
@Override
public final String getContentType()
{
return "vnd.android.cursor.dir/vnd.unikassel.android.sdcframework."
+ getContentTypeName();
}
/*
* (non-Javadoc)
*
* @seede.unikassel.android.sdcframework.provider.facade.ContentProviderData#
* getContentItemType()
*/
@Override
public final String getContentItemType()
{
return "vnd.android.cursor.item/vnd.unikassel.android.sdcframework."
+ getContentTypeName();
}
/*
* (non-Javadoc)
*
* @seede.unikassel.android.sdcframework.provider.facade.ContentProviderData#
* getContentUri()
*/
@Override
public final Uri getContentUri()
{
return Uri.parse( "content://" + getAuthority() + "/"
+ getContentTypeName() );
}
/*
* (non-Javadoc)
*
* @seede.unikassel.android.sdcframework.provider.facade.ContentProviderData#
* getDBVersion()
*/
@Override
public final int getDBVersion()
{
return 1;
}
/*
* (non-Javadoc)
*
* @seede.unikassel.android.sdcframework.provider.facade.ContentProviderData#
* getProjectionMap()
*/
@Override
public HashMap< String, String > getProjectionMap()
{
HashMap< String, String > projectionMap = new HashMap< String, String >();
projectionMap.put( ContentProviderData._ID, ContentProviderData._ID );
projectionMap.put( ContentProviderData.TIMESTAMP,
ContentProviderData.TIMESTAMP );
projectionMap.put( ContentProviderData.SYNCED,
ContentProviderData.SYNCED );
return projectionMap;
}
/*
* (non-Javadoc)
*
* @see de.unikassel.android.sdcframework.provider.facade.ContentProviderData#
* getCreateTableStatement()
*/
@Override
public final String getCreateTableStatement()
{
HashMap< String, String > projectionMap = getProjectionMap();
String columnName = projectionMap.get( ContentProviderData._ID );
StringBuffer statement = new StringBuffer( "create table " );
statement.append( getDBTableName() ).append( " ( " ).append( columnName ).append(
" " ).append( getColumnDataType( columnName ) );
for ( String id : projectionMap.keySet() )
{
if ( ContentProviderData._ID.equals( id ) )
{
continue;
}
columnName = projectionMap.get( id );
String dataType = getColumnDataType( columnName );
statement.append( ", " ).append( columnName ).append( " " ).append(
dataType );
}
statement.append( " )" );
return statement.toString();
}
/**
* Getter for the database column type ( override this method to add
* additional columns of extending classes )
*
* @param columnName
* the row name ( as added as value to the projection map )
* @return the data type description as string ( valid for a create table
* statement )
*/
protected String getColumnDataType( String columnName )
{
HashMap< String, String > projectionMap = getProjectionMap();
if ( projectionMap.get( ContentProviderData.TIMESTAMP ).equals( columnName ) )
{
return "integer not null";
}
else if ( projectionMap.get( ContentProviderData._ID ).equals( columnName ) )
{
return "integer primary key autoincrement";
}
else if ( projectionMap.get( ContentProviderData.SYNCED ).equals( columnName ) )
{
return "integer default null";
}
return "text not null";
}
}