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/*
 * Copyright 2015, The Querydsl Team (http://www.querydsl.com/team)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.mysema.query.spatial.path;

import java.lang.reflect.AnnotatedElement;

import org.geolatte.geom.Geometry;
import org.geolatte.geom.GeometryCollection;
import org.geolatte.geom.LineString;
import org.geolatte.geom.LinearRing;
import org.geolatte.geom.MultiLineString;
import org.geolatte.geom.MultiPoint;
import org.geolatte.geom.MultiPolygon;
import org.geolatte.geom.Point;
import org.geolatte.geom.PolyHedralSurface;
import org.geolatte.geom.Polygon;

import com.mysema.query.spatial.GeometryExpression;
import com.mysema.query.types.Path;
import com.mysema.query.types.PathImpl;
import com.mysema.query.types.PathMetadata;
import com.mysema.query.types.PathMetadataFactory;
import com.mysema.query.types.Visitor;

/**
 * @author tiwe
 *
 * @param 
 */
public class GeometryPath extends GeometryExpression implements Path {

    private static final long serialVersionUID = 312776751843333543L;

    private final PathImpl pathMixin;

    private volatile GeometryCollectionPath collection;

    private volatile LinearRingPath linearRing;

    private volatile LineStringPath lineString;

    private volatile MultiLineStringPath multiLineString;

    private volatile MultiPointPath multiPoint;

    private volatile MultiPolygonPath multiPolygon;

    private volatile PointPath point;

    private volatile PolygonPath polygon;

    private volatile PolyhedralSurfacePath polyhedralSurface;

    public GeometryPath(Path parent, String property) {
        this((Class) Geometry.class, parent, property);
    }

    public GeometryPath(Class type, Path parent, String property) {
        this(type, PathMetadataFactory.forProperty(parent, property));
    }

    public GeometryPath(PathMetadata metadata) {
        this((Class) Geometry.class, metadata);
    }

    public GeometryPath(Class type, PathMetadata metadata) {
        super(new PathImpl(type, metadata));
        this.pathMixin = (PathImpl)mixin;
    }

    public GeometryPath(String var) {
        this((Class) Geometry.class, PathMetadataFactory.forVariable(var));
    }

    public GeometryCollectionPath asCollection() {
        if (collection == null) {
            collection = new GeometryCollectionPath(pathMixin.getMetadata());
        }
        return collection;
    }

    public LinearRingPath asLinearRing() {
        if (linearRing == null) {
            linearRing = new LinearRingPath(pathMixin.getMetadata());
        }
        return linearRing;
    }

    public LineStringPath asLineString() {
        if (lineString == null) {
            lineString = new LineStringPath(pathMixin.getMetadata());
        }
        return lineString;
    }

    public MultiLineStringPath asMultiLineString() {
        if (multiLineString == null) {
            multiLineString = new MultiLineStringPath(pathMixin.getMetadata());
        }
        return multiLineString;
    }

    public MultiPointPath asMultiPoint() {
        if (multiPoint == null) {
            multiPoint = new MultiPointPath(pathMixin.getMetadata());
        }
        return multiPoint;
    }

    public MultiPolygonPath asMultiPolygon() {
        if (multiPolygon == null) {
            multiPolygon = new MultiPolygonPath(pathMixin.getMetadata());
        }
        return multiPolygon;
    }

    public PointPath asPoint() {
        if (point == null) {
            point = new PointPath(pathMixin.getMetadata());
        }
        return point;
    }

    public PolygonPath asPolygon() {
        if (polygon == null) {
            polygon = new PolygonPath(pathMixin.getMetadata());
        }
        return polygon;
    }

    public PolyhedralSurfacePath asPolygHedralSurface() {
        if (polyhedralSurface == null) {
            polyhedralSurface = new PolyhedralSurfacePath(pathMixin.getMetadata());
        }
        return polyhedralSurface;
    }

    @Override
    public final  R accept(Visitor v, C context) {
        return v.visit(pathMixin, context);
    }

    public GeometryPath(Class type, String var) {
        this(type, PathMetadataFactory.forVariable(var));
    }

    @Override
    public PathMetadata getMetadata() {
        return pathMixin.getMetadata();
    }

    @Override
    public Path getRoot() {
        return pathMixin.getRoot();
    }

    @Override
    public AnnotatedElement getAnnotatedElement() {
        return pathMixin.getAnnotatedElement();
    }

}