Example usage for java.lang Byte MIN_VALUE

Introduction

In this page you can find the example usage for java.lang Byte MIN_VALUE.

Prototype

byte MIN_VALUE

To view the source code for java.lang Byte MIN_VALUE.

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Document

A constant holding the minimum value a byte can have, -2⁷.

Usage

From source file:org.sakaiproject.content.impl.serialize.impl.test.ByteStorageConversionCheck.java

@Test
public void testMaxMinConversion() {
    byte[] bin = new byte[2];
    char[] cin = new char[2];
    byte[] bout = new byte[2];

    bin[0] = Byte.MIN_VALUE;
    bin[1] = Byte.MAX_VALUE;//from  ww w .  ja v  a 2  s  .c o  m

    ByteStorageConversion.toChar(bin, 0, cin, 0, bin.length);
    ByteStorageConversion.toByte(cin, 0, bout, 0, cin.length);
    log.info("   Min Byte " + bin[0] + ": Stored as int[" + (int) cin[0] + "]  char[" + cin[0] + "]\n");
    log.info("   Max Byte " + bin[1] + ": Stored as int[" + (int) cin[1] + "]  char[" + cin[1] + "]\n");

    for (int i = 0; i < bin.length; i++) {
        if (bin[i] != bout[i]) {
            log.warn("Internal Byte conversion failed at " + bin[i] + "=>" + (int) cin[i] + "=>" + bout[i]);
        }
    }
}

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From source file:it.scoppelletti.security.keygen.DESKeyToPropertySetProvider.java

public Properties toProperties(Key key) {
    byte[] data;//www  .  j  a  va  2s  . c om
    SecretKey desKey;
    SecretKeyFactory keyFactory;
    DESKeySpec param;
    Properties props;

    if (!(key instanceof SecretKey)) {
        return null;
    }

    try {
        keyFactory = SecretKeyFactory.getInstance(DESKeyFactory.ALGORITHM);
    } catch (NoSuchAlgorithmException ex) {
        return null;
    }

    try {
        desKey = keyFactory.translateKey((SecretKey) key);
    } catch (InvalidKeyException ex) {
        return null;
    }

    try {
        param = (DESKeySpec) keyFactory.getKeySpec(desKey, DESKeySpec.class);
    } catch (InvalidKeySpecException ex) {
        return null;
    }

    props = new Properties();
    props.setProperty(CryptoUtils.PROP_KEYFACTORY, DESKeyFactory.class.getName());
    data = param.getKey();
    props.setProperty(DESKeyFactory.PROP_KEY, Hex.encodeHexString(data));
    Arrays.fill(data, Byte.MIN_VALUE);

    return props;
}

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From source file:it.scoppelletti.security.keygen.DESedeKeyToPropertySetProvider.java

public Properties toProperties(Key key) {
    byte[] data;//w  w  w  .  j a v  a2  s. co  m
    SecretKey desKey;
    SecretKeyFactory keyFactory;
    DESedeKeySpec param;
    Properties props;

    if (!(key instanceof SecretKey)) {
        return null;
    }

    try {
        keyFactory = SecretKeyFactory.getInstance(DESedeKeyFactory.ALGORITHM);
    } catch (NoSuchAlgorithmException ex) {
        return null;
    }

    try {
        desKey = keyFactory.translateKey((SecretKey) key);
    } catch (InvalidKeyException ex) {
        return null;
    }

    try {
        param = (DESedeKeySpec) keyFactory.getKeySpec(desKey, DESedeKeySpec.class);
    } catch (InvalidKeySpecException ex) {
        return null;
    }

    props = new Properties();
    props.setProperty(CryptoUtils.PROP_KEYFACTORY, DESedeKeyFactory.class.getName());
    data = param.getKey();
    props.setProperty(DESedeKeyFactory.PROP_KEY, Hex.encodeHexString(data));
    Arrays.fill(data, Byte.MIN_VALUE);

    return props;
}

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From source file:org.tranche.server.logs.LogUtil.java

/**
 * Retrieve IP address as a formatted string.
 * @param IPBytes//  ww w. jav a 2s .co m
 * @return
 * @throws java.lang.Exception
 */
public static String getIPString(byte[] IPBytes) throws Exception {
    StringBuffer ip = new StringBuffer();

    if (IPBytes.length == 4) {
        for (int i = 0; i < IPBytes.length; i++) {

            // Convert to unsigned int
            int next = IPBytes[i] + Math.abs(Byte.MIN_VALUE);

            ip.append(next);
            if (i < IPBytes.length - 1) {
                ip.append(".");
            }
        }
    } else if (IPBytes.length == 16) {
        throw new UnsupportedOperationException("Implement IPv6.");
    } else {
        throw new Exception("Unrecognized IP version for " + IPBytes.length
                + ". Expecting 4 bytes (IPv4) or 16 bytes (IPv6).");
    }
    return ip.toString();
}

---

From source file:org.voltdb.ClientResponseImpl.java

/**
 * Another constructor for test and error responses
 * @param client_handle//from   w  w w.  j a  va2s.  com
 * @param status
 * @param results
 * @param extra
 */
public ClientResponseImpl(long txn_id, long client_handle, int basePartition, Status status,
        VoltTable[] results, String statusString) {
    this(txn_id, client_handle, basePartition, status, Byte.MIN_VALUE, null, results, statusString, null);
}

---

From source file:gedi.util.MathUtils.java

/**
 * Throws an exception if n is either a real or to big to be represented by a byte.
 * @param n/*from  ww w  .  ja  v a2  s .com*/
 * @return
 */
public static byte byteValueExact(Number n) {
    if (n instanceof Byte)
        return n.byteValue();
    double d = n.doubleValue();
    long l = n.longValue();
    if (d == (double) l) {
        if (l >= Byte.MIN_VALUE && l <= Byte.MAX_VALUE)
            return (byte) l;
    }
    throw new NumberFormatException();
}

---

From source file:org.omnaest.utils.codec.EncoderAndDecoderAlphanumericTokens.java

@Override
public String encode(String source) {
    ///*from   w  w w. j  a v  a 2  s . c o m*/
    final StringBuffer stringBuffer = new StringBuffer();

    //
    if (source != null) {
        //
        final Pattern pattern = Pattern.compile(ALPHA_LETTER_REGEX);
        final int length = source.length();
        for (int ii = 0; ii < length; ii++) {
            final String token = source.substring(ii, ii + 1);
            final Matcher matcher = pattern.matcher(String.valueOf(token));
            if (matcher.matches()) {
                stringBuffer.append(token);
            } else {
                try {
                    //
                    final byte[] bytes = token.getBytes(CHARSET_UTF_8);
                    for (byte byteToken : bytes) {
                        stringBuffer.append(String.format("%0" + INTERVAL + "d", byteToken - Byte.MIN_VALUE));
                    }
                } catch (Exception e) {
                    Assert.fails(e);
                }
            }
        }
    }

    // 
    return stringBuffer.toString();
}

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From source file:org.godhuli.rhipe.hbase.Util.java

public static Scan[] generateBytePrefixScans(Calendar startCal, Calendar endCal, String dateFormat,
        ArrayList<Pair<String, String>> columns, int caching, boolean cacheBlocks) {
    ArrayList<Scan> scans = new ArrayList<Scan>();

    SimpleDateFormat rowsdf = new SimpleDateFormat(dateFormat);
    long endTime = getEndTimeAtResolution(endCal.getTimeInMillis(), Calendar.DATE);

    byte[] temp = new byte[1];
    while (startCal.getTimeInMillis() < endTime) {
        for (byte b = Byte.MIN_VALUE; b < Byte.MAX_VALUE; b++) {
            int d = Integer.parseInt(rowsdf.format(startCal.getTime()));

            Scan s = new Scan();
            s.setCaching(caching);// w  ww  .j ava 2  s.co m
            s.setCacheBlocks(cacheBlocks);
            // add columns
            for (Pair<String, String> pair : columns) {
                s.addColumn(pair.getFirst().getBytes(), pair.getSecond().getBytes());
            }

            temp[0] = b;
            s.setStartRow(Bytes.add(temp, Bytes.toBytes(String.format("%06d", d))));
            s.setStopRow(Bytes.add(temp, Bytes.toBytes(String.format("%06d", d + 1))));
            if (LOG.isDebugEnabled()) {
                LOG.info("Adding start-stop range: " + temp + String.format("%06d", d) + " - " + temp
                        + String.format("%06d", d + 1));
            }

            scans.add(s);
        }

        startCal.add(Calendar.DATE, 1);
    }

    return scans.toArray(new Scan[scans.size()]);
}

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From source file:org.voltdb.ClientResponseImpl.java

/**
 * And another....//w  w  w .j a  v  a2  s .com
 * @param status
 * @param results
 * @param extra
 * @param e
 */
public ClientResponseImpl(long txn_id, long client_handle, int basePartition, Status status,
        VoltTable[] results, String statusString, SerializableException e) {
    this(txn_id, client_handle, basePartition, status, Byte.MIN_VALUE, null, results, statusString, e);
}

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From source file:org.apache.hadoop.hive.accumulo.AccumuloTestSetup.java

protected void createAccumuloTable(Connector conn)
        throws TableExistsException, TableNotFoundException, AccumuloException, AccumuloSecurityException {
    TableOperations tops = conn.tableOperations();
    if (tops.exists(TABLE_NAME)) {
        tops.delete(TABLE_NAME);/* ww  w.j a  v  a  2 s . c o  m*/
    }

    tops.create(TABLE_NAME);

    boolean[] booleans = new boolean[] { true, false, true };
    byte[] bytes = new byte[] { Byte.MIN_VALUE, -1, Byte.MAX_VALUE };
    short[] shorts = new short[] { Short.MIN_VALUE, -1, Short.MAX_VALUE };
    int[] ints = new int[] { Integer.MIN_VALUE, -1, Integer.MAX_VALUE };
    long[] longs = new long[] { Long.MIN_VALUE, -1, Long.MAX_VALUE };
    String[] strings = new String[] { "Hadoop, Accumulo", "Hive", "Test Strings" };
    float[] floats = new float[] { Float.MIN_VALUE, -1.0F, Float.MAX_VALUE };
    double[] doubles = new double[] { Double.MIN_VALUE, -1.0, Double.MAX_VALUE };
    HiveDecimal[] decimals = new HiveDecimal[] { HiveDecimal.create("3.14159"), HiveDecimal.create("2.71828"),
            HiveDecimal.create("0.57721") };
    Date[] dates = new Date[] { Date.valueOf("2014-01-01"), Date.valueOf("2014-03-01"),
            Date.valueOf("2014-05-01") };
    Timestamp[] timestamps = new Timestamp[] { new Timestamp(50), new Timestamp(100), new Timestamp(150) };

    BatchWriter bw = conn.createBatchWriter(TABLE_NAME, new BatchWriterConfig());
    final String cf = "cf";
    try {
        for (int i = 0; i < 3; i++) {
            Mutation m = new Mutation("key-" + i);
            m.put(cf, "cq-boolean", Boolean.toString(booleans[i]));
            m.put(cf.getBytes(), "cq-byte".getBytes(), new byte[] { bytes[i] });
            m.put(cf, "cq-short", Short.toString(shorts[i]));
            m.put(cf, "cq-int", Integer.toString(ints[i]));
            m.put(cf, "cq-long", Long.toString(longs[i]));
            m.put(cf, "cq-string", strings[i]);
            m.put(cf, "cq-float", Float.toString(floats[i]));
            m.put(cf, "cq-double", Double.toString(doubles[i]));
            m.put(cf, "cq-decimal", decimals[i].toString());
            m.put(cf, "cq-date", dates[i].toString());
            m.put(cf, "cq-timestamp", timestamps[i].toString());

            bw.addMutation(m);
        }
    } finally {
        bw.close();
    }
}

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