view src/java/de/intevation/mxd/reader/GdbRasterCatalogLayerReader.java @ 97:18e4f143896b

Added polygon writer.
author Raimund Renkert <rrenkert@intevation.de>
date Mon, 06 Jun 2011 17:24:43 +0200
parents 59e06c405a9a
children 6c3d880db7c5
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package de.intevation.mxd.reader;

import org.apache.log4j.Logger;

import com.esri.arcgis.carto.ILayer;
import com.esri.arcgis.carto.GdbRasterCatalogLayer;

import org.w3c.dom.Element;

import de.intevation.mxd.utils.MapToXMLUtils;

/**
 * Reads Layer information.
 *
 * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
 */
public class GdbRasterCatalogLayerReader
implements ILayerReader {

    /**
     * The logger.
     */
    private static final Logger logger =
        Logger.getLogger(GdbRasterCatalogLayerReader.class);

    /**
     * Privte member.
     */
    private GdbRasterCatalogLayer  layer;
    private MapToXMLUtils util;


    public GdbRasterCatalogLayerReader(ILayer layer)
    throws Exception {
        if(layer instanceof GdbRasterCatalogLayer) {
            this.layer = (GdbRasterCatalogLayer)layer;
        }
        else {
            throw new Exception("Not an instance of GdbRastaCatalogLayer: " +
                layer.getClass().toString());
        }
    }

    /**
     * Setter for XML document helper.
     *
     * @param util The helper for storing map information.
     */
    public void setUtil(MapToXMLUtils util) {
        this.util = util;
    }

    /**
     * Reads the Layer content.
     *
     * @return The layer XML element.
     */
    public Element read()
    throws Exception {
        logger.debug("read()");
        Element layerElement = util.addLayer();

        layerElement.setAttribute("name", layer.getName());
        layerElement.setAttribute("min_scale",
            String.valueOf(layer.getMinimumScale()));
        layerElement.setAttribute("max_scale",
            String.valueOf(layer.getMaximumScale()));
        if(layer.isVisible()) {
            layerElement.setAttribute("status", "on");
        }
        else {
            layerElement.setAttribute("status", "off");
        }

        layerElement.setAttribute("definition_query",
            layer.getDefinitionExpression());

        return layerElement;
    }
}
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