/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2007-2008, Open Source Geospatial Foundation (OSGeo)
*
* This library 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;
* version 2.1 of the License.
*
* This library 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.
*/
package org.geotools.gce.imagemosaic.properties.numeric;
import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.List;
import java.util.Properties;
import org.geotools.data.DataUtilities;
import org.geotools.gce.imagemosaic.Utils;
import org.geotools.gce.imagemosaic.properties.DefaultPropertiesCollectorSPI;
import org.geotools.gce.imagemosaic.properties.PropertiesCollector;
import org.geotools.gce.imagemosaic.properties.PropertiesCollectorSPI;
/**
* SPI for the extraction of elevation information from {@link File} names.
*
* @author Simone Giannecchini, GeoSolutions SAS
*
*/
abstract class NumericFileNameExtractorSPI extends
DefaultPropertiesCollectorSPI implements PropertiesCollectorSPI {
public NumericFileNameExtractorSPI(final String name) {
super(name);
}
public PropertiesCollector create(
final Object o,
final List<String> propertyNames) {
URL source=null;
if (o instanceof URL){
source = (URL)o;
} else if(o instanceof File) {
source=DataUtilities.fileToURL((File) o);
}
else
if(o instanceof String)
try {
source=new URL((String) o);
} catch (MalformedURLException e) {
return null;
}
else
return null;
// it is a url
final Properties properties = Utils.loadPropertiesFromURL(source);
if(properties.containsKey("regex"))
return createInternal(this,propertyNames,properties.getProperty("regex"));
return null;
}
abstract protected PropertiesCollector createInternal(NumericFileNameExtractorSPI numericFileNameExtractorSPI, List<String> propertyNames, String string);
}