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package m.gis.union;

import static csip.ModelDataService.EXEC_OK;
import java.util.ListIterator;
import javax.ws.rs.Path;
import m.gis.GISModelDataService;
import m.utils.Layer;
import oms3.annotations.*;

/**
 *
 * @author ktraff
 */
@Name("union")
@Description("CSIP Union Service")
@Path("m/union/1.0")
public class V1_0 extends GISModelDataService {

    @Override
    protected void preProcess() throws Exception {
		super.preProcess();
    }

    @Override
    protected String process() throws Exception {
        Layer resultLayer = null;
        if (layers.size() > 0) {
            ListIterator<Layer> iterator = layers.listIterator();
            resultLayer = iterator.next();
            while (iterator.hasNext()) {
                resultLayer = db.union(resultLayer, iterator.next());
            }
        }
        result.put(db.toJSON(resultLayer, outputSRID));
        return EXEC_OK;
    }

    @Override
    protected void postProcess() throws Exception {
		super.postProcess();
    }

}