gmlgeometryconverterfactory.java

esri的ArcGIS Server超级学习模板程序（for java）

package com.esri.solutions.jitk.data.gml;

import org.apache.log4j.LogManager;
import org.apache.log4j.Logger;

import com.esri.solutions.jitk.datasources.ogc.gml.GMLMultiCurve;
import com.esri.solutions.jitk.datasources.ogc.gml.GMLMultiSurface;
import com.esri.solutions.jitk.datasources.ogc.gml.GMLPoint;
import com.esri.solutions.jitk.datasources.ogc.gml.IGMLGeometry;

public class GMLGeometryConverterFactory {
	private static final Logger _logger = LogManager.getLogger(GMLGeometryConverterFactory.class);
	
	public static IGMLGeometryConverter getInstance(IGMLGeometry geometry) throws GMLConversionNotSupportedException {
		IGMLGeometryConverter converter = null;
		
		if (geometry instanceof GMLPoint) {
			converter = new GMLPointConverter();
		}
		else if (geometry instanceof GMLMultiCurve) {
			converter = new GMLMultiCurveConverter();
		}
		else if (geometry instanceof GMLMultiSurface) {
			converter = new GMLMultiSurfaceConverter();
		}			
		else {
			_logger.warn("Attempt to convert WebGeometry type " + geometry.getClass().toString() + " which is not supported");
			throw new GMLConversionNotSupportedException(geometry.getClass().toString() + " conversion to GML not supported");
		}
		
		return converter;
	}
}