Example usage for com.google.common.primitives UnsignedInts remainder

Introduction

In this page you can find the example usage for com.google.common.primitives UnsignedInts remainder.

Prototype

@CheckReturnValue
public static int remainder(int dividend, int divisor) 

Source Link

Document

Returns dividend % divisor, where the dividend and divisor are treated as unsigned 32-bit quantities.

Usage

From source file:se.sics.caracaldb.utils.ByteArrayFormatter.java

public static byte[] fromHexString(String str) {
    if (str.equals("(null)")) {
        return null;
    }//from  ww  w  .j av a2s  .  com
    if (str.equals("")) {
        return new byte[0];
    }
    String nospacestr = str.replaceAll("\\s", ""); // take away spaces
    if (UnsignedInts.remainder(nospacestr.length(), 2) != 0) {
        throw new NumberFormatException("String should contain only pairs of [0-F] (should be even)!");
    }
    int expectedLength = nospacestr.length() / 2;
    String[] byteBlocks = nospacestr.split("(?<=\\G.{2})"); // split in parts of length 2
    if (expectedLength != byteBlocks.length) {
        System.out.println("Blocks: " + Arrays.toString(byteBlocks));
        throw new NumberFormatException("String should contain only pairs of [0-F]!");
    }
    byte[] bytes = new byte[byteBlocks.length];
    for (int i = 0; i < bytes.length; i++) {
        bytes[i] = UnsignedBytes.parseUnsignedByte(byteBlocks[i], 16);
    }
    return bytes;
}

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From source file:se.sics.caracaldb.global.LookupTable.java

private Set<Integer> findReplicationSetSizes() {
    Set<Integer> sizes = new TreeSet<Integer>();
    for (Entry<ByteBuffer, ImmutableMap<String, String>> e : schemas.metaData.entrySet()) {
        ByteBuffer id = e.getKey();
        ImmutableMap<String, String> meta = e.getValue();
        String rfS = J6.orDefault(meta.get("rfactor"), "3");
        Integer rf = Integer.parseInt(rfS);
        String forceMasterS = J6.orDefault(meta.get("forceMaster"), "false");
        boolean forceMaster = Boolean.parseBoolean(forceMasterS);
        if (forceMaster) { // they better all have the same rfactor or weird things are going to happen^^
            masterRepSize = rf;// w  ww.ja  v  a 2s.  c  o  m
        }
        sizes.add(rf);
        if (UnsignedInts.remainder(rf, 2) == 0) {
            BootstrapServer.LOG.warn(
                    "Schema {} uses a replication factor of {}. " + "It is recommended to use uneven factors.",
                    schemas.schemaNames.get(id), rf);
        }
        if (rf < 3) {
            throw new RuntimeException("Replication factor for any schema must be >=3!");
        }
        if (rf > hosts.size()) {
            throw new RuntimeException(
                    "Replication factor for any schema can't be larger than the initial number of hosts!"
                            + "If you think you have enough hosts for rf=" + rf
                            + " consider incrementing the value of caraca.bootThreshold.");
        }

    }
    if (masterRepSize < 0) { // in case there are no forceMaster schemata
        masterRepSize = 3;
    }
    return sizes;
}

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