Example usage for java.nio ByteBuffer get

Introduction

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

Prototype

public abstract byte get(int index);

Source Link

Document

Returns the byte at the specified index and does not change the position.

Usage

From source file:hornet.framework.clamav.service.ClamAVCheckService.java

/**
 * Lecture du fichier et envoi sur la socket.
 *
 * @param resultat//from w  w  w .jav a2  s . c o  m
 *            resultat
 * @param fileForTestSize
 *            fileForTestSize
 * @param channel
 *            channel
 * @param bufFileForTestRead
 *            bufFileForTestRead
 * @throws IOException
 *             IOException
 */
protected void readAndSendFile(final StringBuilder resultat, final long fileForTestSize,
        final SocketChannel channel, final MappedByteBuffer bufFileForTestRead) throws IOException {

    // Envoi de la commande
    final ByteBuffer writeReadBuffer = ByteBuffer.allocate(BUFFER_SIZE);
    writeReadBuffer.put(ClamAVCheckService.COMMANDE.getBytes(UTF_8));
    writeReadBuffer.put(this.intToByteArray((int) fileForTestSize));
    writeReadBuffer.flip();
    channel.write(writeReadBuffer);

    // Envoi du fichier

    long size = fileForTestSize;
    // envoi du fichier
    while (size > 0) {
        size -= channel.write(bufFileForTestRead);
    }
    final ByteBuffer writeBuffer = ByteBuffer.allocate(4);
    writeBuffer.put(new byte[] { 0, 0, 0, 0 });
    writeBuffer.flip();
    channel.write(writeBuffer);

    // lecture de la rponse
    ByteBuffer readBuffer;
    readBuffer = ByteBuffer.allocate(BUFFER_SIZE);
    // lecture de la rponse
    readBuffer.clear();
    boolean readLine = false;
    while (!readLine) {
        final int numReaden = channel.read(readBuffer);
        if (numReaden > 0) {
            readLine = readBuffer.get(numReaden - 1) == '\n';
            resultat.append(new String(readBuffer.array(), 0, numReaden, UTF_8));
            readBuffer.clear();
        } else {
            if (numReaden == -1) {
                readLine = true;
                readBuffer.clear();
            }
        }
    }
}

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From source file:com.healthmarketscience.jackcess.impl.ColumnImpl.java

/**
 * Read the extra flags field for a column definition.
 *///from www . j a  v  a  2 s. c  o  m
static byte readExtraFlags(ByteBuffer buffer, int offset, JetFormat format) {
    int extFlagsOffset = format.OFFSET_COLUMN_EXT_FLAGS;
    return ((extFlagsOffset >= 0) ? buffer.get(offset + extFlagsOffset) : 0);
}

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From source file:com.github.ambry.utils.UtilsTest.java

@Test
public void testSerializeString() {
    String randomString = getRandomString(10);
    ByteBuffer outputBuffer = ByteBuffer.allocate(4 + randomString.getBytes().length);
    Utils.serializeString(outputBuffer, randomString, StandardCharsets.US_ASCII);
    outputBuffer.flip();//  ww  w  .ja  va  2  s.  c  o m
    int length = outputBuffer.getInt();
    assertEquals("Input and output string lengths don't match", randomString.getBytes().length, length);
    byte[] output = new byte[length];
    outputBuffer.get(output);
    assertFalse("Output buffer shouldn't have any remaining, but has " + outputBuffer.remaining() + " bytes",
            outputBuffer.hasRemaining());
    String outputString = new String(output);
    assertEquals("Input and output strings don't match", randomString, outputString);

    randomString = getRandomString(10) + "";
    outputBuffer = ByteBuffer.allocate(4 + randomString.getBytes().length);
    Utils.serializeString(outputBuffer, randomString, StandardCharsets.US_ASCII);
    outputBuffer.flip();
    length = outputBuffer.getInt();
    assertEquals("Input and output string lengths don't match ", (randomString.getBytes().length - 1), length);
    output = new byte[length];
    outputBuffer.get(output);
    assertFalse("Output buffer shouldn't have any remaining, but has " + outputBuffer.remaining() + " bytes",
            outputBuffer.hasRemaining());
    outputString = new String(output);
    randomString = randomString.substring(0, randomString.length() - 1) + "?";
    assertEquals("Input and output strings don't match", randomString, outputString);

    randomString = "";
    outputBuffer = ByteBuffer.allocate(4);
    Utils.serializeString(outputBuffer, randomString, StandardCharsets.US_ASCII);
    outputBuffer.flip();
    length = outputBuffer.getInt();
    assertEquals("Input and output string lengths don't match", 0, length);
    output = new byte[length];
    outputBuffer.get(output);
    assertFalse("Output buffer shouldn't have any remaining, but has " + outputBuffer.remaining() + " bytes",
            outputBuffer.hasRemaining());
    outputString = new String(output);
    assertEquals("Output string \"" + outputString + "\" expected to be empty", outputString, "");

    randomString = getRandomString(10);
    outputBuffer = ByteBuffer.allocate(4 + randomString.getBytes().length - 1);
    try {
        Utils.serializeString(outputBuffer, randomString, StandardCharsets.US_ASCII);
        Assert.fail("Serialization should have failed due to insufficient space");
    } catch (RuntimeException e) {
    }
}

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From source file:de.rwhq.btree.LeafNode.java

@Override
public byte[] getLastLeafKeySerialized() {
    final ByteBuffer buffer = rawPage().bufferForReading(getOffsetForKeyPos(getNumberOfEntries() - 1));
    final byte[] buf = new byte[keySerializer.getSerializedLength()];
    buffer.get(buf);
    return buf;//from  w  w w  .  ja  va 2 s  .com
}

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From source file:edu.cmu.cylab.starslinger.transaction.WebEngine.java

private byte[] handleResponseExceptions(byte[] resp, int errMax)
        throws ExchangeException, MessageNotFoundException {

    int firstInt = 0;
    ByteBuffer result = ByteBuffer.wrap(resp);
    if (mCancelable)
        throw new ExchangeException(mCtx.getString(R.string.error_WebCancelledByUser));
    else if (resp == null)
        throw new ExchangeException(mCtx.getString(R.string.error_ServerNotResponding));
    else if (resp.length < 4)
        throw new ExchangeException(mCtx.getString(R.string.error_ServerNotResponding));
    else {//from  w w w .  ja va  2 s . c  o m
        firstInt = result.getInt();
        byte[] bytes = new byte[result.remaining()];
        result.get(bytes);
        if (firstInt <= errMax) { // error int
            MyLog.e(TAG, "server error code: " + firstInt);

            // first, look for expected error string codes from 3rd-party
            handleMessagingErrorCodes(resp);

            // second, use message directly from server
            throw new ExchangeException(
                    String.format(mCtx.getString(R.string.error_ServerAppMessage), new String(bytes).trim()));
        }
        // else strip off server version
        mLatestServerVersion = firstInt;
        return bytes;
    }
}

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From source file:com.ery.ertc.estorm.util.Bytes.java

private static byte[] readBytes(ByteBuffer buf) {
    byte[] result = new byte[buf.remaining()];
    buf.get(result);
    return result;
}

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From source file:ar.com.qbe.siniestros.model.utils.MimeMagic.MagicMatcher.java

/**
 * test the data against the test byte/*from w w w .  j ava 2  s .  co  m*/
 *
 * @param data the data we are testing
 *
 * @return if we have a match
 */
private boolean testByte(ByteBuffer data) {
    log.debug("testByte()");

    String test = new String(match.getTest().array());
    char comparator = match.getComparator();
    long bitmask = match.getBitmask();

    String s = test;
    byte b = data.get(0);
    b = (byte) (b & bitmask);
    log.debug("testByte(): decoding '" + test + "' to byte");

    int tst = Integer.decode(test).byteValue();
    byte t = (byte) (tst & 0xff);
    log.debug("testByte(): applying bitmask '" + bitmask + "' to '" + tst + "', result is '" + t + "'");
    log.debug("testByte(): comparing byte '" + b + "' to '" + t + "'");

    switch (comparator) {
    case '=':
        return t == b;

    case '!':
        return t != b;

    case '>':
        return t > b;

    case '<':
        return t < b;
    }

    return false;
}

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From source file:com.linkedin.databus.core.DbusEventV1.java

@Override
public DbusEventInternalReadable reset(ByteBuffer buf, int position) {
    if (buf.get(position) != DbusEventFactory.DBUS_EVENT_V1) {
        verifyByteOrderConsistency(buf, "DbusEventV1.reset()");
        return DbusEventV2Factory.createReadOnlyDbusEventFromBufferUnchecked(buf, position);
    }/*  w  ww.j a v  a  2s  .co  m*/
    resetInternal(buf, position); // could optionally add "where" arg here, too
    return this;
}

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From source file:fuse.okuyamafs.OkuyamaFilesystem.java

public int write_bk(String path, Object fh, boolean isWritepage, ByteBuffer buf, long offset)
        throws FuseException {
    byte[] tmpBuf = new byte[buf.limit()];
    buf.get(tmpBuf);

    return 0;//from   w  w  w.jav a  2 s  .  c  om
}

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From source file:fuse.okuyamafs.OkuyamaFilesystem.java

public int realWrite(String path, Object fh, boolean isWritepage, ByteBuffer buf, long offset)
        throws FuseException {
    byte[] writeData = new byte[buf.limit()];
    buf.get(writeData);
    return realWrite(path, fh, isWritepage, writeData, offset);
}

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