private void readObject(ObjectInputStream in) throws IOException {
short version = in.readShort();
switch (version) {
case 0x0001:
this.value = in.readFloat();
break;
default:
throw new UnsupportedVersionException(this, version);
}
}
/**
* Reads a file from a given InputStream, where the hash bundles are specified. Make sure to
* generate it first and make sure to re-use it for search.
*
* @param inputStream to access the data, most likely a File on a hard disk
* @return
* @throws IOException
*/
public static double[][][] readHashFunctions(InputStream inputStream) throws IOException {
ObjectInputStream ois = new ObjectInputStream(new GZIPInputStream(inputStream));
int bits = ois.readInt();
int dimensions = ois.readInt();
int numFunctionBundles = ois.readInt();
double[][][] hashFunctions = new double[numFunctionBundles][bits][dimensions];
for (int i = 0; i < hashFunctions.length; i++) {
double[][] functionBundle = hashFunctions[i];
for (int j = 0; j < functionBundle.length; j++) {
double[] bitFunctions = functionBundle[j];
for (int k = 0; k < bitFunctions.length; k++) {
bitFunctions[k] = ois.readFloat();
}
}
}
BitSampling.hashes = hashFunctions;
return hashFunctions;
}
