public static HashCode fromString(final String string) {
Preconditions.checkArgument(
string.length() >= 2, "input string (%s) must have at least 2 characters", string);
Preconditions.checkArgument(
string.length() % 2 == 0,
"input string (%s) must have an even number of characters",
string);
final byte[] bytes = new byte[string.length() / 2];
for (int i = 0; i < string.length(); i += 2) {
final int ch1 = decode(string.charAt(i)) << 4;
final int ch2 = decode(string.charAt(i + 1));
bytes[i / 2] = (byte) (ch1 + ch2);
}
return fromBytesNoCopy(bytes);
}
public static HashCode fromBytes(final byte[] bytes) {
Preconditions.checkArgument(
bytes.length >= 1, (Object) "A HashCode must contain at least 1 byte.");
return fromBytesNoCopy(bytes.clone());
}