Example usage for java.nio ByteBuffer wrap

Introduction

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

Prototype

public static ByteBuffer wrap(byte[] array) 

Source Link

Document

Creates a new byte buffer by wrapping the given byte array.

Usage

From source file:reactor.ipc.netty.http.client.PostAndGetTests.java

private void get(String path, SocketAddress address) {
    try {//from ww w.ja v a2s . c  om
        StringBuilder request = new StringBuilder().append(String.format("GET %s HTTP/1.1\r\n", path))
                .append("Connection: Keep-Alive\r\n").append("\r\n");
        java.nio.channels.SocketChannel channel = java.nio.channels.SocketChannel.open(address);
        System.out.println(String.format("get: request >> [%s]", request.toString()));
        channel.write(ByteBuffer.wrap(request.toString().getBytes()));
        ByteBuffer buf = ByteBuffer.allocate(4 * 1024);
        while (channel.read(buf) > -1) {
        }
        String response = new String(buf.array());
        System.out.println(String.format("get: << Response: %s", response));
        channel.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

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From source file:com.tinspx.util.io.ChannelSourceTest.java

@Test
public void testWrap() throws IOException {
    ByteSourceTests.testByteSource(ChannelSource.of(ByteSource.wrap(INPUT)), INPUT);
    ByteSourceTests.testByteSource(ChannelSource.of(Forced.byteSource(ChannelSource.of(INPUT))), INPUT);
    ByteSourceTests.testByteSource(// www.j a  v  a 2  s.c  om
            ChannelSource.of(Forced.byteSource(new ByteSourceTests.ForcedByteArray(INPUT))), INPUT);
    ByteSourceTests.testByteSource(
            ChannelSource.of(Forced.byteSource(ChannelSource.of(ByteBuffer.wrap(INPUT)))), INPUT);
    ByteSourceTests.testByteSource(
            ChannelSource.of(Forced.byteSource(ChannelSource.of(ByteBuffer.wrap(INPUT).asReadOnlyBuffer()))),
            INPUT);
}

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From source file:c5db.tablet.tabletCreationBehaviors.RootTabletLeaderBehavior.java

private void createLeaderLessMetaEntryInRoot(Region region, List<Long> pickedPeers) throws IOException {
    org.apache.hadoop.hbase.TableName hbaseDatabaseName = SystemTableNames.metaTableName();
    ByteBuffer hbaseNameSpace = ByteBuffer.wrap(hbaseDatabaseName.getNamespace());
    ByteBuffer hbaseTableName = ByteBuffer.wrap(hbaseDatabaseName.getQualifier());
    TableName tableName = new TableName(hbaseNameSpace, hbaseTableName);

    byte[] initialMetaRockeyInRoot = Bytes.add(TabletNameHelpers.toBytes(tableName), SystemTableNames.sep,
            new byte[0]);
    Put put = new Put(initialMetaRockeyInRoot);

    RegionInfo regionInfo = new RegionInfo(1, tableName, pickedPeers, 0l, // This signifies that we haven't picked the leader
            ByteBuffer.wrap(new byte[0]), ByteBuffer.wrap(new byte[0]), true, false);

    put.add(HConstants.CATALOG_FAMILY, HConstants.REGIONINFO_QUALIFIER,
            ProtobufIOUtil.toByteArray(regionInfo, RegionInfo.getSchema(), LinkedBuffer.allocate(512)));

    boolean processed = region.mutate(ProtobufUtil.toMutation(MutationProto.MutationType.PUT, put),
            new Condition());
    if (!processed) {
        throw new IOException(
                "Unable to mutate root and thus we can't properly run root tablet leader behavior");
    }//  ww  w .j a  v  a  2  s  .co  m
}

---

From source file:com.sm.message.Header.java

public static Header toHeader(byte[] data) {
    ByteBuffer buf = ByteBuffer.wrap(data);
    byte release = buf.get();
    long version = buf.getLong();
    long node = buf.getLong();
    byte[] n = new byte[data.length - FIRST];
    buf.get(n);/*  w  w  w.j  a v  a 2  s.  c  o m*/
    try {
        String name = new String(n, "UTF-8");
        return new Header(name, version, release, node);
    } catch (UnsupportedEncodingException ex) {
        throw new RuntimeException(ex.getMessage());
    }

}

---

From source file:com.yahoo.yqlplus.engine.tools.YQLPlusRun.java

@SuppressWarnings("unchecked")
public int run(CommandLine command) throws Exception {
    String script = null;//from   ww  w  .  jav  a2s . co m
    String filename = null;
    if (command.hasOption("command")) {
        script = command.getOptionValue("command");
        filename = "<command line>";
    }
    List<String> scriptAndArgs = (List<String>) command.getArgList();
    if (filename == null && scriptAndArgs.size() < 1) {
        System.err.println("No script specified.");
        return -1;
    } else if (script == null) {
        filename = scriptAndArgs.get(0);
        Path scriptPath = Paths.get(filename);
        if (!Files.isRegularFile(scriptPath)) {
            System.err.println(scriptPath + " is not a file.");
            return -1;
        }
        script = Charsets.UTF_8.decode(ByteBuffer.wrap(Files.readAllBytes(scriptPath))).toString();
    }
    List<String> paths = Lists.newArrayList();
    if (command.hasOption("path")) {
        paths.addAll(Arrays.asList(command.getOptionValues("path")));
    }
    // TODO: this isn't going to be very interesting without some sources
    Injector injector = Guice.createInjector(new JavaEngineModule());
    YQLPlusCompiler compiler = injector.getInstance(YQLPlusCompiler.class);
    CompiledProgram program = compiler.compile(script);
    if (command.hasOption("source")) {
        program.dump(System.out);
        return 0;
    }
    // TODO: read command line arguments to pass to program
    ExecutorService outputThreads = Executors.newSingleThreadExecutor();
    ProgramResult result = program.run(Maps.<String, Object>newHashMap(), true);
    for (String name : result.getResultNames()) {
        final ListenableFuture<YQLResultSet> future = result.getResult(name);
        future.addListener(new Runnable() {
            @Override
            public void run() {
                try {
                    YQLResultSet resultSet = future.get();
                    System.out.println(new String((byte[]) resultSet.getResult()));
                } catch (InterruptedException | ExecutionException e) {
                    e.printStackTrace();
                }

            }
        }, outputThreads);
    }
    Future<TraceRequest> done = result.getEnd();
    try {
        done.get(10000L, TimeUnit.MILLISECONDS);
    } catch (InterruptedException e) {
        throw new RuntimeException(e);
    } catch (ExecutionException | TimeoutException e) {
        e.printStackTrace();
    }
    outputThreads.awaitTermination(1L, TimeUnit.SECONDS);
    return 0;
}

---

From source file:edu.harvard.iq.dataverse.ingest.tabulardata.impl.plugins.por.PORFileReaderSpi.java

@Override
public boolean canDecodeInput(Object source) throws IOException {
    if (!(source instanceof BufferedInputStream)) {
        return false;
    }/*from   w  w  w.  java2 s .  c  o m*/
    if (source == null) {
        throw new IllegalArgumentException("source == null!");
    }
    BufferedInputStream stream = (BufferedInputStream) source;
    dbgLog.fine("applying the por test\n");

    byte[] b = new byte[POR_HEADER_SIZE];

    if (stream.markSupported()) {
        stream.mark(0);
    }

    int nbytes = stream.read(b, 0, POR_HEADER_SIZE);

    //printHexDump(b, "hex dump of the byte-array");

    if (nbytes == 0) {
        throw new IOException();
    } else if (nbytes < 491) {
        // size test
        dbgLog.fine("this file is NOT spss-por type");
        return false;
    }

    if (stream.markSupported()) {
        stream.reset();
    }

    boolean DEBUG = false;

    //windows [0D0A]=>   [1310] = [CR/LF]
    //unix    [0A]  =>   [10]
    //mac     [0D]  =>   [13]
    // 3char  [0D0D0A]=> [131310] spss for windows rel 15
    // expected results
    // unix    case: [0A]   : [80], [161], [242], [323], [404], [485]
    // windows case: [0D0A] : [81], [163], [245], [327], [409], [491]
    //  : [0D0D0A] : [82], [165], [248], [331], [414], [495]

    // convert b into a ByteBuffer

    ByteBuffer buff = ByteBuffer.wrap(b);
    byte[] nlch = new byte[36];
    int pos1;
    int pos2;
    int pos3;
    int ucase = 0;
    int wcase = 0;
    int mcase = 0;
    int three = 0;
    int nolines = 6;
    int nocols = 80;
    for (int i = 0; i < nolines; ++i) {
        int baseBias = nocols * (i + 1);
        // 1-char case
        pos1 = baseBias + i;
        buff.position(pos1);
        dbgLog.finer("\tposition(1)=" + buff.position());
        int j = 6 * i;
        nlch[j] = buff.get();

        if (nlch[j] == 10) {
            ucase++;
        } else if (nlch[j] == 13) {
            mcase++;
        }

        // 2-char case
        pos2 = baseBias + 2 * i;
        buff.position(pos2);
        dbgLog.finer("\tposition(2)=" + buff.position());

        nlch[j + 1] = buff.get();
        nlch[j + 2] = buff.get();

        // 3-char case
        pos3 = baseBias + 3 * i;
        buff.position(pos3);
        dbgLog.finer("\tposition(3)=" + buff.position());

        nlch[j + 3] = buff.get();
        nlch[j + 4] = buff.get();
        nlch[j + 5] = buff.get();

        dbgLog.finer(i + "-th iteration position =" + nlch[j] + "\t" + nlch[j + 1] + "\t" + nlch[j + 2]);
        dbgLog.finer(i + "-th iteration position =" + nlch[j + 3] + "\t" + nlch[j + 4] + "\t" + nlch[j + 5]);

        if ((nlch[j + 3] == 13) && (nlch[j + 4] == 13) && (nlch[j + 5] == 10)) {
            three++;
        } else if ((nlch[j + 1] == 13) && (nlch[j + 2] == 10)) {
            wcase++;
        }

        buff.rewind();
    }
    if (three == nolines) {
        dbgLog.fine("0D0D0A case");
        windowsNewLine = false;
    } else if ((ucase == nolines) && (wcase < nolines)) {
        dbgLog.fine("0A case");
        windowsNewLine = false;
    } else if ((ucase < nolines) && (wcase == nolines)) {
        dbgLog.fine("0D0A case");
    } else if ((mcase == nolines) && (wcase < nolines)) {
        dbgLog.fine("0D case");
        windowsNewLine = false;
    }

    buff.rewind();
    int PORmarkPosition = POR_MARK_POSITION_DEFAULT;
    if (windowsNewLine) {
        PORmarkPosition = PORmarkPosition + 5;
    } else if (three == nolines) {
        PORmarkPosition = PORmarkPosition + 10;
    }

    byte[] pormark = new byte[8];
    buff.position(PORmarkPosition);
    buff.get(pormark, 0, 8);
    String pormarks = new String(pormark);

    dbgLog.fine(
            "pormark[hex: 53 50 53 53 50 4F 52 54 == SPSSPORT] =>" + new String(Hex.encodeHex(pormark)) + "<-");

    if (pormarks.equals(POR_MARK)) {
        dbgLog.fine("this file is spss-por type");
        return true;
    } else {
        dbgLog.fine("this file is NOT spss-por type");
    }
    return false;
}

---

From source file:com.lhings.java.utils.ByteMan.java

public static byte[] toByteArray(double value) {
    byte[] bytes = new byte[8];
    ByteBuffer.wrap(bytes).putDouble(value);
    return bytes;
}

---

From source file:com.nextdoor.bender.ipc.firehose.FirehoseTransportBufferBatch.java

@Override
public void close() {
    if (this.cos.getByteCount() != 0 && this.dataRecords.size() < MAX_RECORDS) {
        logger.trace("flushing remainder of buffer");
        ByteBuffer data = ByteBuffer.wrap(baos.toByteArray());
        this.dataRecords.add(new Record().withData(data));
    }/*from   www  . jav  a  2 s . co m*/

    try {
        this.baos.close();
    } catch (IOException e) {
    }
}

---

From source file:com.liveramp.commons.util.BytesUtils.java

public static ByteBuffer hexStringToBytes(String hexString) {
    hexString = hexString.replaceAll("\\W+", "");
    if (hexString.length() % 2 != 0) {
        throw new RuntimeException("Input string's size must be even.");
    }/*  ww  w. j a v a 2s . c  o m*/
    byte[] result = new byte[hexString.length() / 2];
    for (int i = 0; i < hexString.length(); i += 2) {
        result[i / 2] = (byte) Integer.valueOf(hexString.substring(i, i + 2), 16).intValue();
    }
    return ByteBuffer.wrap(result);
}

---

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