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);
}
static HHStaticGraph getFromHHDb(Connection conn) throws SQLException {
HHDbReader reader = new HHDbReader(conn);
HHStaticGraph g =
new HHStaticGraph(
reader.numVertices(),
reader.numLevelVertices(),
reader.numEdges(),
reader.getGraphProperties());
int offset = 0;
for (Iterator<HHVertexLvl> iter = reader.getVertexLvls(); iter.hasNext(); ) {
HHVertexLvl v = iter.next();
g.vLvlVNh[offset] = v.neighborhood;
if (v.lvl == 0) {
g.vFirstLvlVertex[v.id] = offset;
}
offset++;
}
for (int i = 0; i < g.numLvlVertices; i++) {
g.vLvlFirstEdge[i] = -1;
}
offset = 0;
for (Iterator<HHEdge> iter = reader.getEdges(); iter.hasNext(); ) {
HHEdge e = iter.next();
g.eSource[offset] = e.sourceId;
g.eTarget[offset] = e.targetId;
g.eWeight[offset] = e.weight;
g.eDirection[FWD].set(offset, e.fwd);
g.eDirection[BWD].set(offset, e.bwd);
g.eShortcut.set(offset, e.shortcut);
for (int i = 0; i <= e.maxLvl; i++) {
if (g.vLvlFirstEdge[g.vFirstLvlVertex[e.sourceId] + i] == -1) {
g.vLvlFirstEdge[g.vFirstLvlVertex[e.sourceId] + i] = offset;
}
}
offset++;
}
return g;
}