Example usage for java.nio ByteBuffer flip

Introduction

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

Prototype

public final Buffer flip()

Source Link

Document

Flips this buffer.

Usage

From source file:org.sglover.nlp.EntityExtracter.java

private String getContent(ReadableByteChannel channel) throws IOException {
    StringBuilder sb = new StringBuilder();
    ByteBuffer bb = ByteBuffer.allocate(2048);
    int c = -1;/*from   w w w.ja v a  2  s.  c o m*/
    do {
        c = channel.read(bb);
        bb.flip();
        bb.clear();
        sb.append(new String(bb.array(), "UTF-8"));
    } while (c != -1);

    String content = sb.toString();
    return content;
}

From source file:com.bennavetta.appsite.file.ResourceService.java

private void copy(ReadableByteChannel src, WritableByteChannel dest) throws IOException {
    ByteBuffer buffer = ByteBuffer.allocateDirect(bufferSize.get());
    while (src.read(buffer) != -1 || buffer.position() != 0) {
        buffer.flip();
        dest.write(buffer);//from   w ww . j av a  2  s.  c o  m
        buffer.compact();
    }
}

From source file:com.joemelsha.crypto.hash.KeccakTest.java

@Test
public void testValid() {
    T hash = create();// w w w .ja  v  a  2  s.  c om
    for (ByteBuffer[] tv : testVectors) {
        hash.reset();
        hash.update(tv[0].duplicate());
        ByteBuffer out = ByteBuffer.allocate(tv[1].remaining());
        hash.digest(out);
        out.flip();
        Assert.assertEquals("mismatch", out, tv[1]);
    }
}

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

/**
 * /* w ww .  ja  v a 2  s. c o m*/
 * @param pathId
 * @param objId:the index-th block in fileblockstore
 * @param offset
 * @return
 */
public PathPosition put(long objId, long pathId, long offset) {
    String path = getFixedPath(pathId);
    //set the block index in the fileblockstore
    final WriteBuffer wbuf = fbs.set((int) objId);
    final ByteBuffer buf = wbuf.buf();
    StringSerializer.fromStringToBuffer(buf, path, PATHWIDTH);
    buf.putLong(offset);
    buf.flip();
    wbuf.save();
    PathPosition pp = new PathPosition(path, offset);
    return pp;
}

From source file:jnative.io.AIO.java

private ByteBuffer getDirect(ByteBuffer buf) {
    if (buf instanceof DirectBuffer)
        return buf;

    int pos = buf.position();
    int lim = buf.limit();
    assert (pos <= lim);
    int rem = (pos <= lim ? lim - pos : 0);
    ByteBuffer bb = ByteBuffer.allocate(rem);
    bb.put(buf);//from   ww w .  j  a  va2 s.  com
    bb.flip();
    return bb;
}

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  w w  w  .  j  a  va  2s  .com*/
    buffer.flip(); //need flip
    return buffer.getLong();
}

From source file:gobblin.util.io.StreamUtilsTest.java

private void verifyBuffer(byte[] srcBytes, ByteBuffer buffer) throws IOException {
    buffer.put(srcBytes);/*from   w  w  w  . j a  v  a 2  s  .c  om*/
    buffer.flip();

    ByteArrayOutputStream bOs = new ByteArrayOutputStream();
    StreamUtils.byteBufferToOutputStream(buffer, bOs);
    Assert.assertEquals(bOs.toByteArray(), srcBytes);

    bOs = new ByteArrayOutputStream();
    buffer.rewind();

    // consume one character from the buf; make sure it is not included in the output by
    // byteBufferToOutputStream
    buffer.getChar();
    StreamUtils.byteBufferToOutputStream(buffer, bOs);
    byte[] offByTwo = bOs.toByteArray();
    Assert.assertEquals(offByTwo.length, srcBytes.length - 2);
    for (int i = 0; i < offByTwo.length; i++) {
        Assert.assertEquals(offByTwo[i], srcBytes[i + 2]);
    }
}

From source file:com.github.matthesrieke.jprox.JProxViaParameterServlet.java

private void copyChannel(final ReadableByteChannel src, final WritableByteChannel dest) throws IOException {
    final ByteBuffer buffer = ByteBuffer.allocateDirect(16 * 1024);

    while (src.read(buffer) != -1) {
        buffer.flip();
        dest.write(buffer);/* ww  w  .j ava2 s. c  om*/
        buffer.compact();
    }

    buffer.flip();

    while (buffer.hasRemaining()) {
        dest.write(buffer);
    }
}

From source file:com.bennavetta.appsite.file.ResourceService.java

public Resource create(String path, MediaType mime, ReadableByteChannel src) throws IOException {
    String normalized = PathUtils.normalize(path);
    log.debug("Creating resource {}", normalized);

    AppEngineFile file = fs.createNewBlobFile(mime.toString(), normalized);
    FileWriteChannel channel = fs.openWriteChannel(file, true);

    MessageDigest digest = null;//from w  w  w  . j  a v a2  s .  co m
    try {
        digest = MessageDigest.getInstance("MD5");
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException("MD5 not available", e);
    }
    ByteBuffer buf = ByteBuffer.allocateDirect(bufferSize.get());
    while (src.read(buf) != -1 || buf.position() != 0) {
        buf.flip();
        int read = channel.write(buf);
        if (read != 0) {
            int origPos = buf.position();
            int origLimit = buf.limit();
            buf.position(origPos - read);
            buf.limit(origPos);
            digest.update(buf);
            buf.limit(origLimit);
            buf.position(origPos);
        }

        buf.compact();
    }

    channel.closeFinally();
    Resource resource = new Resource(normalized, fs.getBlobKey(file).getKeyString(), digest.digest(), mime);
    resource.save();
    return resource;
}

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]);/*from w  w  w.j av  a 2 s  .co m*/
    }
    buffer.flip();// need flip
    return buffer.getLong();
}