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.apache.metron.profiler.hbase.SaltyRowKeyBuilderTest.java

/**
 * Build a row key that includes a single group that is an integer.
 *//* ww w  .j  a  va  2 s  . c o m*/
@Test
public void testRowKeyWithOneIntegerGroup() throws Exception {
    // setup
    measurement.withGroups(Arrays.asList(200));

    // the expected row key
    ByteBuffer buffer = ByteBuffer.allocate(100)
            .put(SaltyRowKeyBuilder.getSalt(measurement.getPeriod(), saltDivisor))
            .put(measurement.getProfileName().getBytes()).put(measurement.getEntity().getBytes())
            .put("200".getBytes()).putLong(1635701L);

    buffer.flip();
    final byte[] expected = new byte[buffer.limit()];
    buffer.get(expected, 0, buffer.limit());

    // validate
    byte[] actual = rowKeyBuilder.rowKey(measurement);
    Assert.assertTrue(Arrays.equals(expected, actual));
}

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From source file:com.intel.chimera.stream.AbstractCryptoStreamTest.java

private void doByteBufferWrite(String cipherClass, ByteArrayOutputStream baos, boolean withChannel)
        throws Exception {
    baos.reset();//  w  ww.j  ava2  s  . co  m
    CryptoOutputStream out = getCryptoOutputStream(baos, getCipher(cipherClass), defaultBufferSize, iv,
            withChannel);
    ByteBuffer buf = ByteBuffer.allocateDirect(dataLen / 2);
    buf.put(data, 0, dataLen / 2);
    buf.flip();
    int n1 = out.write(buf);

    buf.clear();
    buf.put(data, n1, dataLen / 3);
    buf.flip();
    int n2 = out.write(buf);

    buf.clear();
    buf.put(data, n1 + n2, dataLen - n1 - n2);
    buf.flip();
    int n3 = out.write(buf);

    Assert.assertEquals(dataLen, n1 + n2 + n3);

    out.flush();

    InputStream in = getCryptoInputStream(new ByteArrayInputStream(encData), getCipher(cipherClass),
            defaultBufferSize, iv, withChannel);
    buf = ByteBuffer.allocate(dataLen + 100);
    byteBufferReadCheck(in, buf, 0);
    in.close();
}

---

From source file:org.alfresco.cacheserver.PatchServiceRESTTest.java

public PatchDocument getPatch(MultiPart resource) throws IOException {
    Integer blockSize = null;/*from  w ww  .  j a  v a2  s .  co m*/
    Integer matchCount = null;

    List<Integer> matchedBlocks = null;
    List<Patch> patches = new LinkedList<>();

    int c = 0;
    InputStream is = null;
    Integer size = null;
    Integer lastMatchIndex = null;

    // This will iterate the individual parts of the multipart response
    for (BodyPart bodyPart : resource.getBodyParts()) {
        //           if(bodyPart instanceof FormDataMultiPart)
        //           {
        //               System.out.printf(
        //                       "Multipart Body Part [Mime Type: %s]\n",
        //                       bodyPart.getMediaType());

        //               FormDataMultiPart mp = (FormDataMultiPart)bodyPart;
        //               for (BodyPart bodyPart1 : mp.getBodyParts())
        //               {
        ContentDisposition contentDisposition = bodyPart.getContentDisposition();
        //                   if(contentDisposition instanceof FormDataContentDisposition)
        //                   {
        //                       FormDataContentDisposition cd = (FormDataContentDisposition)contentDisposition;
        Map<String, String> parameters = contentDisposition.getParameters();
        String name = parameters.get("name");
        MediaType mediaType = bodyPart.getMediaType();
        //                   System.out.println("Body Part " + name);

        if (name.equals("p_size")) {
            String s = getAsString(bodyPart);
            size = Integer.parseInt(s);
            c++;
        } else if (name.equals("p_last_match_idx")) {
            String s = getAsString(bodyPart);
            lastMatchIndex = Integer.parseInt(s);
            c++;
        } else if (name.equals("p_stream")) {
            BodyPartEntity bpEntity = (BodyPartEntity) bodyPart.getEntity();
            is = bpEntity.getInputStream();
            c++;
        } else if (name.equals("p_block_size")) {
            String s = getAsString(bodyPart);
            blockSize = Integer.parseInt(s);
        } else if (name.equals("p_match_count")) {
            String s = getAsString(bodyPart);
            matchCount = Integer.parseInt(s);
        }

        if (c >= 3) {
            c = 0;
            ByteBuffer bb = ByteBuffer.allocate(1024 * 20); // TODO
            ReadableByteChannel channel = Channels.newChannel(is);
            channel.read(bb);
            bb.flip();
            byte[] buffer = new byte[bb.limit()];
            bb.get(buffer);
            Patch patch = new Patch(lastMatchIndex, size, buffer);
            patches.add(patch);
        }
        //                   }
        //               }

        //               ByteBuffer bb = ByteBuffer.allocate(1024*20); // TODO
        //               ReadableByteChannel channel = Channels.newChannel(is);
        //               channel.read(bb);
        //               bb.flip();
        //               byte[] buffer = new byte[bb.limit()];
        //               bb.get(buffer);
        //               Patch patch = new Patch(lastMatchIndex, size, buffer);
        //               patches.add(patch);
    }
    //           else
    //           {
    //               System.out.printf(
    //                       "Embedded Body Part [Mime Type: %s, Length: %s]\n",
    //                       bodyPart.getMediaType(), bodyPart.getContentDisposition().getSize());
    //
    //               ContentDisposition contentDisposition = bodyPart.getContentDisposition();
    //               Map<String, String> parameters = contentDisposition.getParameters();
    //               String name = parameters.get("name");
    ////               if(contentDisposition instanceof FormDataContentDisposition)
    ////               {
    ////                   FormDataContentDisposition cd = (FormDataContentDisposition)contentDisposition;
    ////                   String name = cd.getName();
    //
    //               Object entity = bodyPart.getEntity();
    ////               if(entity instanceof BodyPartEntity)
    ////               {
    ////                   BodyPartEntity bpEntity = (BodyPartEntity)entity;
    ////                   if(name.equals("p_block_size"))
    ////                   {
    ////                       blockSize = Integer.parseInt((String)entity);
    ////                   }
    ////                   else if(name.equals("p_match_count"))
    ////                   {
    ////                       matchCount = Integer.parseInt((String)bodyPart.getEntity());
    ////                   }
    ////                   else if(name.equals("p_matched_blocks"))
    ////                   {
    ////                       String matchedBlocksStr = (String)bodyPart.getEntity();
    ////                       List<String> l = Arrays.asList(matchedBlocksStr.split(","));
    ////                       matchedBlocks = l.stream()
    ////                               .filter(s -> s != null && !s.equals(""))
    ////                               .map(s -> Integer.parseInt(s))
    ////                               .collect(Collectors.toList());
    ////                   }
    ////               }
    //           }
    //       }

    PatchDocument patchDocument = new PatchDocument(blockSize, matchedBlocks, patches);
    return patchDocument;
}

---

From source file:org.apache.axis2.transport.nhttp.ServerHandler.java

/**
 * Process ready output by writing into the channel
 * @param conn the connection being processed
 * @param encoder the content encoder in use
 *//*from   w ww. j  av  a 2  s .  c o m*/
public void outputReady(final NHttpServerConnection conn, final ContentEncoder encoder) {

    HttpContext context = conn.getContext();
    HttpResponse response = conn.getHttpResponse();
    Pipe.SourceChannel source = (Pipe.SourceChannel) context.getAttribute(RESPONSE_SOURCE_CHANNEL);
    ByteBuffer outbuf = (ByteBuffer) context.getAttribute(RESPONSE_BUFFER);

    try {
        int bytesRead = source.read(outbuf);
        if (bytesRead == -1) {
            encoder.complete();
        } else {
            outbuf.flip();
            encoder.write(outbuf);
            outbuf.compact();
        }

        if (encoder.isCompleted()) {
            source.close();
            if (!connStrategy.keepAlive(response, context)) {
                conn.close();
            }
        }

    } catch (IOException e) {
        handleException("I/O Error : " + e.getMessage(), e, conn);
    }
}

---

From source file:org.apache.metron.profiler.hbase.SaltyRowKeyBuilderTest.java

/**
 * Build a row key that includes only one group.
 *//* w  w w. j  av  a 2s.  c o m*/
@Test
public void testRowKeyWithOneGroup() throws Exception {
    // setup
    measurement.withGroups(Arrays.asList("group1"));

    // the expected row key
    ByteBuffer buffer = ByteBuffer.allocate(100)
            .put(SaltyRowKeyBuilder.getSalt(measurement.getPeriod(), saltDivisor))
            .put(measurement.getProfileName().getBytes()).put(measurement.getEntity().getBytes())
            .put("group1".getBytes()).putLong(1635701L);

    buffer.flip();
    final byte[] expected = new byte[buffer.limit()];
    buffer.get(expected, 0, buffer.limit());

    // validate
    byte[] actual = rowKeyBuilder.rowKey(measurement);
    Assert.assertTrue(Arrays.equals(expected, actual));
}

---

From source file:de.hofuniversity.iisys.neo4j.websock.query.encoding.unsafe.DeflateJsonQueryHandler.java

private ByteBuffer fuse(final int length) {
    //fuses the buffers into a single array of the target length
    final ByteBuffer bb = ByteBuffer.allocate(length);

    for (byte[] buffer : fBuffers) {
        if (buffer.length > length - bb.position()) {
            bb.put(buffer, 0, length - bb.position());
        } else {/*from   w w  w.  j  av  a2  s .c  o m*/
            bb.put(buffer);
        }
    }

    //important
    bb.flip();
    fBuffers.clear();

    return bb;
}

---

From source file:cn.ac.ncic.mastiff.io.coding.RedBlackTreeStringReader.java

@Override
public byte[] ensureDecompressed() throws IOException {
    DataOutputBuffer transfer = new DataOutputBuffer();
    transfer.write(inBuf.getData(), 12, inBuf.getLength() - 12);
    DataInputBuffer dib = new DataInputBuffer();
    dib.reset(transfer.getData(), 0, transfer.getLength());
    int dictionarySize = dib.readInt();
    int length1 = dib.readInt();
    byte[] data = transfer.getData();
    transfer.close();//w w  w .j ava2s  .c  o  m
    dib.reset(data, Integer.SIZE + Integer.SIZE, length1);
    FlexibleEncoding.ORC.StreamName name = new FlexibleEncoding.ORC.StreamName(0,
            OrcProto.Stream.Kind.DICTIONARY_DATA);
    ByteBuffer inBuf1 = ByteBuffer.allocate(length1);
    inBuf1.put(dib.getData(), 0, dib.getLength());
    inBuf1.flip();
    InStream in = InStream.create("test1", inBuf1, null, dictionarySize);
    if (in.available() > 0) {
        dictionaryBuffer = new DynamicByteArray(64, in.available());
        dictionaryBuffer.readAll(in);
        in.close();
        // read the lengths    google  proto buffer
        name = new StreamName(1, OrcProto.Stream.Kind.LENGTH);
        dib.reset(data, 4 + 4 + length1, 4);
        int length2 = dib.readInt();
        dib.reset(data, 4 + 4 + length1 + 4, length2);
        //  in = streams.get(name);
        ByteBuffer inBuf2 = ByteBuffer.allocate(length2);
        inBuf2.put(dib.getData(), 0, length2);
        inBuf2.flip();
        in = InStream.create("test2", inBuf2, null, dictionarySize);
        //    IntegerReader lenReader = createIntegerReader(encodings.get(columnId)
        //        .getKind(), in, false);
        IntegerReader lenReader = createIntegerReader(OrcProto.ColumnEncoding.Kind.DIRECT_V2, in, false);
        int offset = 0;
        dictionaryOffsets = new int[dictionarySize + 1];
        for (int i = 0; i < dictionarySize; ++i) {
            dictionaryOffsets[i] = offset;
            offset += (int) lenReader.next();
        }
        dictionaryOffsets[dictionarySize] = offset;
        in.close();
        name = new FlexibleEncoding.ORC.StreamName(2, OrcProto.Stream.Kind.DATA);
        dib.reset(data, 4 + 4 + length1 + 4 + length2, 4);
        int length3 = dib.readInt();
        dib.reset(data, 4 + 4 + length1 + 4 + length2 + 4, length3);
        ByteBuffer inBuf3 = ByteBuffer.allocate(length3);
        inBuf3.put(dib.getData(), 0, length3);
        inBuf3.flip();
        in = InStream.create("test3", inBuf3, null, dictionarySize);
        reader = createIntegerReader(OrcProto.ColumnEncoding.Kind.DIRECT_V2, in, false);
    }
    inBuf.close();
    DataOutputBuffer decoding = new DataOutputBuffer();
    DataOutputBuffer offsets = new DataOutputBuffer();
    decoding.writeInt(decompressedSize);
    decoding.writeInt(numPairs);
    decoding.writeInt(startPos);
    int dataoffset = 12;
    String str;
    for (int i = 0; i < numPairs; i++) {
        str = readEachValue(null);
        decoding.writeUTF(str);
        //      if(i<5){
        //        System.out.println("304  bin[i]  "+str+"  decoding    "+ decoding.size());
        //      }
        dataoffset = decoding.size();
        offsets.writeInt(dataoffset);
    }
    System.out.println("315  offset.size() " + offsets.size() + "  decoding.szie   " + decoding.size());
    System.out.println("316  dataoffet   " + dataoffset);
    decoding.write(offsets.getData(), 0, offsets.size());
    inBuf.close();
    offsets.close();
    dib.close();
    System.out.println("316   decoding   " + decoding.size() + decoding.getLength() + " decoding.getData()   "
            + decoding.getData().length);
    inBuf1.clear();
    return decoding.getData();
}

---

From source file:bamboo.openhash.fileshare.FileShare.java

/**
 * Transfer wblocks from the wblocks array to the ready queue.
 *///from  w  w w.j  a  v a  2 s  .  c  o  m
public void make_parents(boolean done) {

    for (int l = 0; l < wblocks.size(); ++l) {
        logger.debug("level " + l + " of " + wblocks.size() + " size=" + wblocks.elementAt(l).size() + " done="
                + done);
        while ((wblocks.elementAt(l).size() >= BRANCHING) || (done && (wblocks.elementAt(l).size() > 1))) {
            int count = min(BRANCHING, wblocks.elementAt(l).size());
            logger.debug("count=" + count);
            for (int i = 0; i < count; ++i) {
                ByteBuffer bb = wblocks.elementAt(l).removeFirst();
                bb.flip();
                md.update(secret);
                md.update(bb.array(), 0, bb.limit());
                byte[] dig = md.digest();
                ready.addLast(new Pair<byte[], ByteBuffer>(dig, bb));
                if (l + 1 >= wblocks.size()) {
                    wblocks.setSize(max(wblocks.size(), l + 2));
                    wblocks.setElementAt(new LinkedList<ByteBuffer>(), l + 1);
                }
                LinkedList<ByteBuffer> next_level = wblocks.elementAt(l + 1);
                if (next_level.isEmpty() || (next_level.getLast().position() == 1024)) {
                    logger.debug("adding a new block to level " + (l + 1));
                    next_level.addLast(ByteBuffer.wrap(new byte[1024]));
                    next_level.getLast().putInt(l + 1);
                }
                logger.debug("adding a digest to level " + (l + 1));
                next_level.getLast().put(dig);
            }

            if (done)
                break;
        }
    }
    logger.debug("make_parents done");
}

---

From source file:org.apache.axis2.transport.nhttp.ClientHandler.java

/**
 * Process ready output (i.e. write request to remote server)
 * @param conn the connection being processed
 * @param encoder the encoder in use/*from  w ww  .  j a va2 s .com*/
 */
public void outputReady(final NHttpClientConnection conn, final ContentEncoder encoder) {
    HttpContext context = conn.getContext();
    HttpResponse response = conn.getHttpResponse();

    Pipe.SourceChannel source = (Pipe.SourceChannel) context.getAttribute(REQUEST_SOURCE_CHANNEL);
    ByteBuffer outbuf = (ByteBuffer) context.getAttribute(RESPONSE_BUFFER);

    try {
        int bytesRead = source.read(outbuf);
        if (bytesRead == -1) {
            encoder.complete();
        } else {
            outbuf.flip();
            encoder.write(outbuf);
            outbuf.compact();
        }

        if (encoder.isCompleted()) {
            source.close();
        }

    } catch (IOException e) {
        handleException("I/O Error : " + e.getMessage(), e, conn);
    }
}

---

From source file:org.apache.metron.profiler.hbase.SaltyRowKeyBuilderTest.java

/**
 * Build a row key that includes a single group that is an integer.
 *//*from   www. ja v  a2 s .  c  o  m*/
@Test
public void testRowKeyWithMixedGroups() throws Exception {
    // setup
    measurement.withGroups(Arrays.asList(200, "group1"));

    // the expected row key
    ByteBuffer buffer = ByteBuffer.allocate(100)
            .put(SaltyRowKeyBuilder.getSalt(measurement.getPeriod(), saltDivisor))
            .put(measurement.getProfileName().getBytes()).put(measurement.getEntity().getBytes())
            .put("200".getBytes()).put("group1".getBytes()).putLong(1635701L);

    buffer.flip();
    final byte[] expected = new byte[buffer.limit()];
    buffer.get(expected, 0, buffer.limit());

    // validate
    byte[] actual = rowKeyBuilder.rowKey(measurement);
    Assert.assertTrue(Arrays.equals(expected, actual));
}

---

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