private GraphHopper importOSM(String graphHopperLocation, String osmFileStr) {
if (encodingManager == null)
throw new IllegalStateException("No encodingManager was specified");
setGraphHopperLocation(graphHopperLocation);
try {
importOSM(osmFileStr);
} catch (IOException ex) {
throw new RuntimeException("Cannot parse OSM file " + osmFileStr, ex);
}
postProcessing();
cleanUp();
optimize();
prepare();
flush();
initIndex();
return this;
}
/**
* Opens or creates a graph. The specified args need a property 'graph' (a folder) and if no such
* folder exist it'll create a graph from the provided osm file (property 'osm'). A property
* 'size' is used to preinstantiate a datastructure/graph to avoid over-memory allocation or
* reallocation (default is 5mio)
*
* <p>
*
* @param graphHopperFolder is the folder containing graphhopper files (which can be compressed
* too)
*/
@Override
public boolean load(String graphHopperFolder) {
if (Helper.isEmpty(graphHopperFolder))
throw new IllegalStateException("graphHopperLocation is not specified. call init before");
if (graph != null) throw new IllegalStateException("graph is already loaded");
if (graphHopperFolder.endsWith("-gh")) {
// do nothing
} else if (graphHopperFolder.endsWith(".osm") || graphHopperFolder.endsWith(".xml")) {
throw new IllegalArgumentException("To import an osm file you need to use importOrLoad");
} else if (graphHopperFolder.indexOf(".") < 0) {
if (new File(graphHopperFolder + "-gh").exists()) graphHopperFolder += "-gh";
} else {
File compressed = new File(graphHopperFolder + ".ghz");
if (compressed.exists() && !compressed.isDirectory()) {
try {
new Unzipper().unzip(compressed.getAbsolutePath(), graphHopperFolder, removeZipped);
} catch (IOException ex) {
throw new RuntimeException(
"Couldn't extract file " + compressed.getAbsolutePath() + " to " + graphHopperFolder,
ex);
}
}
}
setGraphHopperLocation(graphHopperFolder);
GHDirectory dir = new GHDirectory(ghLocation, dataAccessType);
if (chUsage) graph = new LevelGraphStorage(dir, encodingManager);
else graph = new GraphStorage(dir, encodingManager);
graph.setSegmentSize(defaultSegmentSize);
if (!graph.loadExisting()) return false;
postProcessing();
initIndex();
return true;
}
/** For testing */
GraphHopper(GraphStorage g) {
this();
this.graph = g;
initIndex();
}