Example usage for java.nio ByteBuffer getLong

Introduction

In this page you can find the example usage for java.nio ByteBuffer getLong.

Prototype

public abstract long getLong();

Source Link

Document

Returns the long at the current position and increases the position by 8.

Usage

From source file:com.jivesoftware.os.rcvs.api.keys.SymetricalHashableKeyTest.java

License:asdf

public long bytesLong(byte[] bytes) {
    ByteBuffer buffer = ByteBuffer.allocate(8);
    buffer.put(bytes);//from   www .j a v a 2s .c om
    buffer.flip(); //need flip
    return buffer.getLong();
}

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From source file:com.buaa.cfs.nfs3.FileHandle.java

private long bytesToLong(byte[] data) {
    ByteBuffer buffer = ByteBuffer.allocate(8);
    for (int i = 0; i < 8; i++) {
        buffer.put(data[i]);/*w w w  .j av  a  2 s.c  o m*/
    }
    buffer.flip();// need flip
    return buffer.getLong();
}

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From source file:com.codeabovelab.dm.common.security.token.SignedTokenServiceBackend.java

@Override
public TokenData getToken(String tokenString) {
    final String key = unwrapToken(tokenString);
    if (key.isEmpty()) {
        return null;
    }/*from www  .  j a  v  a2s  .  c  o m*/
    byte[] decodedKey = base32.decode(key);
    byte[] currentSignature;
    final long creationTime;
    byte[] random;
    byte[] payload;
    {
        byte[] content;
        {
            ByteBuffer buffer = ByteBuffer.wrap(decodedKey);
            content = restoreArray(buffer);
            currentSignature = restoreArray(buffer);
        }

        ByteBuffer contentBuffer = ByteBuffer.wrap(content);
        creationTime = contentBuffer.getLong();
        random = restoreArray(contentBuffer);
        // we need to skip secret
        restoreArray(contentBuffer);
        payload = restoreArray(contentBuffer);
    }

    final byte[] serverSecret = computeServerSecretApplicableAt(creationTime);

    // Verification
    byte[] expectedSign = sign(contentPack(creationTime, random, serverSecret, payload));
    Assert.isTrue(Arrays.equals(expectedSign, currentSignature), "Key verification failure");

    String[] unpack = unpack(Utf8.decode(payload));
    return new TokenDataImpl(creationTime, TokenUtils.getKeyWithTypeAndToken(TYPE, key), unpack[0], unpack[1]);
}

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From source file:org.opensafety.hishare.util.implementation.EncryptionImpl.java

public Long hash(String plainText) throws CryptographyException {
    try {/*  ww  w . java  2s.c o m*/
        MessageDigest md = MessageDigest.getInstance("MD5");
        byte[] cipher = md.digest(plainText.getBytes());
        ByteBuffer converter = ByteBuffer.wrap(cipher);
        return converter.getLong();
    } catch (Exception e) {
        throw new CryptographyException(e.getMessage());
    }
}

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From source file:com.act.lcms.v2.fullindex.BuilderTest.java

@Test
public void testExtractTriples() throws Exception {
    // Verify all TMzI triples are stored correctly.
    Map<Long, TMzI> deserializedTriples = new HashMap<>();
    assertEquals("All triples should have entries in the DB", 9,
            fakeDB.getFakeDB().get(ColumnFamilies.ID_TO_TRIPLE).size());
    for (Map.Entry<List<Byte>, byte[]> entry : fakeDB.getFakeDB().get(ColumnFamilies.ID_TO_TRIPLE).entrySet()) {
        Long id = ByteBuffer.wrap(fakeDB.byteListToArray(entry.getKey())).getLong();
        TMzI triple = TMzI.readNextFromByteBuffer(ByteBuffer.wrap(entry.getValue()));
        Float expectedTime = Double.valueOf(TIMES[id.intValue() / 3]).floatValue();
        Double expectedMZ = MZS[id.intValue() / 3][id.intValue() % 3];
        Float expectedIntensity = Double.valueOf(INTENSITIES[id.intValue() / 3][id.intValue() % 3])
                .floatValue();//  w  ww  .  jav a  2s .c  om

        assertEquals("Time matches expected", expectedTime, triple.getTime(), FP_TOLERANCE); // No error expected
        assertEquals("M/z matches expected", expectedMZ, triple.getMz(), FP_TOLERANCE);
        assertEquals("Intensity matches expected", expectedIntensity, triple.getIntensity(), FP_TOLERANCE);

        deserializedTriples.put(id, triple);
    }

    for (Map.Entry<List<Byte>, byte[]> entry : fakeDB.getFakeDB().get(ColumnFamilies.WINDOW_ID_TO_TRIPLES)
            .entrySet()) {
        int windowId = ByteBuffer.wrap(fakeDB.byteListToArray(entry.getKey())).getInt();
        MZWindow window = windowIdsToWindows.get(windowId);

        List<Long> tmziIds = new ArrayList<>(entry.getValue().length / Long.BYTES);
        ByteBuffer valBuffer = ByteBuffer.wrap(entry.getValue());
        while (valBuffer.hasRemaining()) {
            tmziIds.add(valBuffer.getLong());
        }

        for (Long tripleId : tmziIds) {
            TMzI triple = deserializedTriples.get(tripleId);
            assertTrue("Triple m/z falls within range of containing window",
                    triple.getMz() >= window.getMin() && triple.getMz() <= window.getMax());
        }
    }

    for (Map.Entry<List<Byte>, byte[]> entry : fakeDB.getFakeDB().get(ColumnFamilies.TIMEPOINT_TO_TRIPLES)
            .entrySet()) {
        float time = ByteBuffer.wrap(fakeDB.byteListToArray(entry.getKey())).getFloat();

        List<Long> tmziIds = new ArrayList<>(entry.getValue().length / Long.BYTES);
        ByteBuffer valBuffer = ByteBuffer.wrap(entry.getValue());
        while (valBuffer.hasRemaining()) {
            tmziIds.add(valBuffer.getLong());
        }

        for (Long tripleId : tmziIds) {
            TMzI triple = deserializedTriples.get(tripleId);
            assertEquals("Triple time matches key time", time, triple.getTime(), FP_TOLERANCE);
        }
    }
}

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From source file:org.apache.hadoop.hdfs.hoss.db.HotStore.java

/**
 * @param objId//from w w  w. ja va2s . co m
 * @return
 */
public float hot(long objId) {
    final ByteBuffer buf = fbs.get((int) objId);
    if (buf == null) {
        LOG.error("Error trying read object " + objId);
    }
    long current = System.currentTimeMillis();
    long createTime = buf.getLong();
    long lastTime = buf.getLong();
    long size = buf.getLong();

    put(objId, createTime, current, size);
    float hotness = ALPHA * sizeHot(size) + BETA * timeHot(current, createTime, lastTime);
    return hotness;
}

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From source file:org.apache.hadoop.hdfs.hoss.db.HotStore.java

/**
 * /*from   w  w w .j  a va 2s  .c  o  m*/
 * @param objId
 * @return
 */
public float firstHot(long objId, long size) {
    final ByteBuffer buf = fbs.get((int) objId);
    if (buf == null) {
        LOG.error("Error trying read object " + objId);
    }
    long current = System.currentTimeMillis();
    long createTime = buf.getLong();
    long lastTime = buf.getLong();
    buf.getLong();
    long sizeMB = convertMB(size);
    // update the last access time
    put(objId, createTime, current, sizeMB);
    float hotness = ALPHA * sizeHot(size) + BETA * timeHot(current, createTime, lastTime);
    return hotness;
}

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From source file:org.apache.hadoop.hdfs.hoss.db.PathStore.java

/**
 * get path and offset given object id /*from  w  ww.  j  av  a 2s  . c  o m*/
 * @param objId
 * @return
 */
public PathPosition get(long objId) {
    final ByteBuffer buf = fbs.get((int) objId);
    if (buf == null) {
        LOG.error("Error trying read object " + objId);
    }
    String path = StringSerializer.fromBufferToString(buf, PATHWIDTH);
    long offset = buf.getLong();
    PathPosition pp = new PathPosition(path, offset);
    return pp;
}

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From source file:org.apache.cassandra.db.marshal.UUIDType.java

public UUID compose(ByteBuffer bytes) {

    bytes = bytes.slice();/*  w  ww  . ja  v  a 2s  . com*/
    if (bytes.remaining() < 16)
        return new UUID(0, 0);
    return new UUID(bytes.getLong(), bytes.getLong());
}

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From source file:org.wso2.carbon.analytics.data.commons.utils.AnalyticsCommonUtils.java

public static Map<String, Object> decodeRecordValues(byte[] data, Set<String> columns)
        throws AnalyticsException {
    /* using LinkedHashMap to retain the column order */
    Map<String, Object> result = new LinkedHashMap<>();
    int type, size;
    String colName;/*from w  ww. j  a v a 2 s.  c o  m*/
    Object value;
    byte[] buff;
    byte boolVal;
    byte[] binData;
    try {
        ByteBuffer buffer = ByteBuffer.wrap(data);
        while (buffer.remaining() > 0) {
            size = buffer.getInt();
            if (size == 0) {
                break;
            }
            buff = new byte[size];
            buffer.get(buff, 0, size);
            colName = new String(buff, StandardCharsets.UTF_8);
            type = buffer.get();
            switch (type) {
            case DATA_TYPE_STRING:
                size = buffer.getInt();
                buff = new byte[size];
                buffer.get(buff, 0, size);
                value = new String(buff, StandardCharsets.UTF_8);
                break;
            case DATA_TYPE_LONG:
                value = buffer.getLong();
                break;
            case DATA_TYPE_DOUBLE:
                value = buffer.getDouble();
                break;
            case DATA_TYPE_BOOLEAN:
                boolVal = buffer.get();
                if (boolVal == BOOLEAN_TRUE) {
                    value = true;
                } else if (boolVal == BOOLEAN_FALSE) {
                    value = false;
                } else {
                    throw new AnalyticsException("Invalid encoded boolean value: " + boolVal);
                }
                break;
            case DATA_TYPE_INTEGER:
                value = buffer.getInt();
                break;
            case DATA_TYPE_FLOAT:
                value = buffer.getFloat();
                break;
            case DATA_TYPE_BINARY:
                size = buffer.getInt();
                binData = new byte[size];
                buffer.get(binData);
                value = binData;
                break;
            case DATA_TYPE_OBJECT:
                size = buffer.getInt();
                binData = new byte[size];
                buffer.get(binData);
                value = deserializeObject(binData);
                break;
            case DATA_TYPE_NULL:
                value = null;
                break;
            default:
                throw new AnalyticsException("Unknown encoded data source type : " + type);
            }
            if (columns == null || columns.contains(colName)) {
                result.put(colName, value);
            }
        }
    } catch (Exception e) {
        throw new AnalyticsException("Error in decoding record values: " + e.getMessage(), e);
    }
    return result;
}

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