@Override
public boolean loadExisting() {
baseGraph.checkInit();
if (properties.loadExisting()) {
properties.checkVersions(false);
// check encoding for compatiblity
String acceptStr = properties.get("graph.flagEncoders");
if (encodingManager == null) {
if (acceptStr.isEmpty())
throw new IllegalStateException(
"No EncodingManager was configured. And no one was found in the graph: "
+ dir.getLocation());
int bytesForFlags = 4;
if ("8".equals(properties.get("graph.bytesForFlags"))) bytesForFlags = 8;
encodingManager = new EncodingManager(acceptStr, bytesForFlags);
} else if (!acceptStr.isEmpty()
&& !encodingManager.toDetailsString().equalsIgnoreCase(acceptStr)) {
throw new IllegalStateException(
"Encoding does not match:\nGraphhopper config: "
+ encodingManager.toDetailsString()
+ "\nGraph: "
+ acceptStr
+ ", dir:"
+ dir.getLocation());
}
String byteOrder = properties.get("graph.byteOrder");
if (!byteOrder.equalsIgnoreCase("" + dir.getByteOrder()))
throw new IllegalStateException(
"Configured graph.byteOrder ("
+ dir.getByteOrder()
+ ") is not equal to loaded "
+ byteOrder
+ "");
String bytesForFlags = properties.get("graph.bytesForFlags");
if (!bytesForFlags.equalsIgnoreCase("" + encodingManager.getBytesForFlags()))
throw new IllegalStateException(
"Configured graph.bytesForFlags ("
+ encodingManager.getBytesForFlags()
+ ") is not equal to loaded "
+ bytesForFlags);
String dim = properties.get("graph.dimension");
baseGraph.loadExisting(dim);
for (CHGraphImpl cg : chGraphs) {
if (!cg.loadExisting()) throw new IllegalStateException("Cannot load " + cg);
}
return true;
}
return false;
}
/** After configuring this storage you need to create it explicitly. */
@Override
public GraphHopperStorage create(long byteCount) {
baseGraph.checkInit();
if (encodingManager == null) {
throw new IllegalStateException("EncodingManager can only be null if you call loadExisting");
}
long initSize = Math.max(byteCount, 100);
properties.create(100);
properties.put("graph.bytesForFlags", encodingManager.getBytesForFlags());
properties.put("graph.flagEncoders", encodingManager.toDetailsString());
properties.put("graph.byteOrder", dir.getByteOrder());
properties.put("graph.dimension", baseGraph.nodeAccess.getDimension());
properties.putCurrentVersions();
baseGraph.create(initSize);
for (CHGraphImpl cg : chGraphs) {
cg.create(byteCount);
}
properties.put("graph.chWeightings", getCHWeightings().toString());
return this;
}