public EdgeMapping[] mapFromRgEdgeId(int rgEdgeId) {
if (rgEdgeId < 0 || rgEdgeId >= rgEdgeIdToHhEdgeId[0].length) {
return null;
}
return new EdgeMapping[] {
new EdgeMapping(
rgEdgeIdToHhEdgeId[0][rgEdgeId], rgEdgeId, reversed.get(rgEdgeIdToHhEdgeId[0][rgEdgeId])),
new EdgeMapping(
rgEdgeIdToHhEdgeId[0][rgEdgeId], rgEdgeId, reversed.get(rgEdgeIdToHhEdgeId[1][rgEdgeId])),
};
}
public EdgeMapping mapFromHHEdgeId(int hhEdgeId) {
if (hhEdgeId < 0
|| hhEdgeId >= hhEdgeIdToRgEdgeId.length
|| hhEdgeIdToRgEdgeId[hhEdgeId] == -1) {
return null;
}
return new EdgeMapping(hhEdgeId, hhEdgeIdToRgEdgeId[hhEdgeId], reversed.get(hhEdgeId));
}
public static EdgeMapper importFromDb(Connection conn) throws SQLException {
HHDbReader reader = new HHDbReader(conn);
RgDAO rg = new RgDAO(conn);
// mapping from hhEdgeId to rgEdgeId
int[] hhEdgeIdToRgEdgeId = new int[reader.numEdges()];
int[][] rgEdgeIdToHhEdgeId = new int[2][rg.getNumEdges()];
for (int i = 0; i < rgEdgeIdToHhEdgeId[0].length; i++) {
rgEdgeIdToHhEdgeId[0][i] = -1;
rgEdgeIdToHhEdgeId[1][i] = -1;
}
BitArray reversed = new BitArray(reader.numEdges());
int hhEdgeId = 0;
for (Iterator<HHEdge> iter = reader.getEdges(); iter.hasNext(); ) {
HHEdge e = iter.next();
if (e.shortcut) {
// edge is not in routing graph
hhEdgeIdToRgEdgeId[hhEdgeId] = -1;
} else {
// edge is in routing graph, either forward or backward
// hh -> rg
int rgEdgeId = e.id / 2;
hhEdgeIdToRgEdgeId[hhEdgeId] = e.id / 2;
reversed.set(hhEdgeId, e.id % 2 == 1);
// rg ->hh
if (rgEdgeIdToHhEdgeId[0][rgEdgeId] == -1) {
rgEdgeIdToHhEdgeId[0][rgEdgeId] = hhEdgeId;
} else {
rgEdgeIdToHhEdgeId[1][rgEdgeId] = hhEdgeId;
}
}
hhEdgeId++;
}
return new EdgeMapper(hhEdgeIdToRgEdgeId, rgEdgeIdToHhEdgeId, reversed);
}