LocationPointBundler.java

package org.activityinfo.legacy.shared.impl.pivot.bundler;

import com.bedatadriven.rebar.sql.client.SqlResultSetRow;
import org.activityinfo.model.type.geo.AiLatLng;
import org.activityinfo.legacy.shared.command.result.Bucket;

/**
 * Bundles the location's coordinates into the bucket, or if
 * the location doesn't have coordinates, it falls back to
 * the admin entity's MBR for coordinates.
 */
public class LocationPointBundler implements Bundler {

    @Override
    public void bundle(SqlResultSetRow row, Bucket bucket) {
        // Try first to get a point from the location
        if (!row.isNull("LX") && !row.isNull("LY")) {
            bucket.setPoint(new AiLatLng(row.getDouble("LY"), row.getDouble("LX")));

            // Otherwise try from the admin levels
        } else if (!row.isNull("AX") && !row.isNull("AY")) {
            bucket.setPoint(new AiLatLng(row.getDouble("AY"), row.getDouble("AX")));

            // if that fails, use the country's centroid
        } else if (!row.isNull("CX") && !row.isNull("CY")) {
            bucket.setPoint(new AiLatLng(row.getDouble("CY"), row.getDouble("CX")));
        }
    }
}