Example usage for java.nio ByteBuffer array

Introduction

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

Prototype

public final byte[] array() 

Source Link

Document

Returns the byte array which this buffer is based on, if there is one.

Usage

From source file:ValidateLicenseHeaders.java

/**
 * Add the default jboss lgpl header// w  w  w  .  j  a v  a 2  s .c  o m
 */
static void addDefaultHeader(File javaFile) throws IOException {
    if (addDefaultHeader) {
        FileInputStream fis = new FileInputStream(javaFile);
        FileChannel fc = fis.getChannel();
        int size = (int) fc.size();
        ByteBuffer contents = ByteBuffer.allocate(size);
        fc.read(contents);
        fis.close();

        ByteBuffer hdr = ByteBuffer.wrap(DEFAULT_HEADER.getBytes());
        FileOutputStream fos = new FileOutputStream(javaFile);
        fos.write(hdr.array());
        fos.write(contents.array());
        fos.close();
    }

    noheaders.add(javaFile);
}

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From source file:jBittorrentAPI.utils.Utils.java

/**
 * Concatenate the 2 byte arrays/* w  ww. ja v  a2s. c o  m*/
 * @param a byte[]
 * @param b byte[]
 * @return byte[]
 */
public static byte[] concat2(byte[] a, byte[] b) {
    ByteBuffer bb = ByteBuffer.allocate(a.length + b.length);
    bb.put(a);
    bb.put(b);
    return bb.array();
}

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From source file:org.apache.solr.handler.TestBlobHandler.java

public static void postData(CloudSolrClient cloudClient, String baseUrl, String blobName, ByteBuffer bytarr)
        throws IOException {
    HttpPost httpPost = null;/*  ww w  .j a v  a2 s  .  c om*/
    HttpEntity entity;
    String response = null;
    try {
        httpPost = new HttpPost(baseUrl + "/.system/blob/" + blobName);
        httpPost.setHeader("Content-Type", "application/octet-stream");
        httpPost.setEntity(new ByteArrayEntity(bytarr.array(), bytarr.arrayOffset(), bytarr.limit()));
        entity = cloudClient.getLbClient().getHttpClient().execute(httpPost).getEntity();
        try {
            response = EntityUtils.toString(entity, StandardCharsets.UTF_8);
            Map m = (Map) ObjectBuilder.getVal(new JSONParser(new StringReader(response)));
            assertFalse("Error in posting blob " + getAsString(m), m.containsKey("error"));
        } catch (JSONParser.ParseException e) {
            log.error("$ERROR$", response, e);
            fail();
        }
    } finally {
        httpPost.releaseConnection();
    }
}

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From source file:com.palantir.atlasdb.keyvalue.cassandra.CassandraKeyValueServices.java

public static byte[] getBytesFromByteBuffer(ByteBuffer buffer) {
    // Be careful *NOT* to perform anything that will modify the buffer's position or limit
    byte[] bytes = new byte[buffer.limit() - buffer.position()];
    if (buffer.hasArray()) {
        System.arraycopy(buffer.array(), buffer.position(), bytes, 0, bytes.length);
    } else {/*w w  w  .j a  va  2  s.c o m*/
        buffer.duplicate().get(bytes, buffer.position(), bytes.length);
    }
    return bytes;
}

---

From source file:de.dfki.kiara.jsonrpc.JsonRpcMessage.java

private static JsonNode readFromBuffer(JsonRpcProtocol protocol, ByteBuffer data) throws IOException {
    byte[] array;
    int arrayOffset;
    int arrayLength;
    int oldPos = data.position();
    if (data.hasArray()) {
        array = data.array();
        arrayOffset = data.arrayOffset();
        arrayLength = data.remaining();/*from ww  w  . j ava2  s.  com*/
    } else {
        array = new byte[data.remaining()];
        data.get(array);
        arrayOffset = 0;
        arrayLength = array.length;
    }
    data.position(oldPos);

    JsonNode node;
    try (JsonParser parser = protocol.getObjectReader().getFactory().createParser(array, arrayOffset,
            arrayLength)) {
        node = parser.readValueAsTree();
    }
    return node;
}

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From source file:com.icloud.framework.core.nio.ByteBufferUtil.java

public static ByteBuffer clone(ByteBuffer o) {
    assert o != null;

    if (o.remaining() == 0)
        return ByteBuffer.wrap(ArrayUtils.EMPTY_BYTE_ARRAY);

    ByteBuffer clone = ByteBuffer.allocate(o.remaining());

    if (o.isDirect()) {
        for (int i = o.position(); i < o.limit(); i++) {
            clone.put(o.get(i));/*from   www. jav  a2s  .  co  m*/
        }
        clone.flip();
    } else {
        System.arraycopy(o.array(), o.arrayOffset() + o.position(), clone.array(), 0, o.remaining());
    }

    return clone;
}

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From source file:com.smartitengineering.cms.api.impl.Utils.java

public static String readStringInUTF8(DataInput in) throws IOException, UnsupportedEncodingException {
    int allocationBlockSize = 2000;
    int capacity = allocationBlockSize;
    int length = 0;
    ByteBuffer buffer = ByteBuffer.allocate(allocationBlockSize);
    boolean notEof = true;
    while (notEof) {
        try {/*from w  w  w  . j a  va  2  s. c o m*/
            buffer.put(in.readByte());
            if (++length >= capacity) {
                capacity += allocationBlockSize;
                buffer.limit(capacity);
            }
        } catch (EOFException ex) {
            notEof = false;
        }
    }
    String string = StringUtils.newStringUtf8(Arrays.copyOf(buffer.array(), length));
    return string;
}

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From source file:com.icloud.framework.core.util.FBUtilities.java

public static String bytesToHex(ByteBuffer bytes) {
    StringBuilder sb = new StringBuilder();
    for (int i = bytes.position() + bytes.arrayOffset(); i < bytes.limit() + bytes.arrayOffset(); i++) {
        int bint = bytes.array()[i] & 0xff;
        if (bint <= 0xF)
            // toHexString does not 0 pad its results.
            sb.append("0");
        sb.append(Integer.toHexString(bint));
    }//from  ww  w .  j av a2 s  .  c  o  m
    return sb.toString();
}

---

From source file:jp.andeb.obbutil.ObbUtilMain.java

private static boolean doAdd(String[] args) {
    final CommandLine commandLine;
    try {//from   www.j a  v a  2s  .c  o  m
        final CommandLineParser parser = new GnuParser();
        commandLine = parser.parse(OPTIONS_FOR_ADD, args);
    } catch (MissingArgumentException e) {
        System.err.println("??????: " + e.getOption().getOpt());
        printUsage(PROGNAME);
        return false;
    } catch (MissingOptionException e) {
        System.err.println("??????: " + e.getMissingOptions());
        printUsage(PROGNAME);
        return false;
    } catch (UnrecognizedOptionException e) {
        System.err.println("????: " + e.getOption());
        printUsage(PROGNAME);
        return false;
    } catch (ParseException e) {
        System.err.println(e.getMessage());
        printUsage(PROGNAME);
        return false;
    }

    final String pkgName = commandLine.getOptionValue(PACKAGE_NAME.getOpt());
    final String versionStr = commandLine.getOptionValue(OBB_VERSION.getOpt());
    final Integer version = toInteger(versionStr);
    if (version == null) {
        System.err.println("??????: " + versionStr);
        printUsage(PROGNAME);
        return false;
    }
    final boolean isOverlay = commandLine.hasOption(OVERLAY_FLAG.getOpt());
    final String saltStr = commandLine.getOptionValue(SALT.getOpt());
    final byte[] salt;
    if (saltStr == null) {
        salt = null;
    } else {
        salt = toByteArray(saltStr, ObbInfoV1.SALT_LENGTH);
        if (salt == null) {
            System.err.println("????: " + saltStr);
            printUsage(PROGNAME);
            return false;
        }
    }

    final String[] nonRecognizedArgs = commandLine.getArgs();
    if (nonRecognizedArgs.length == 0) {
        System.err.println("????????");
        printUsage(PROGNAME);
        return false;
    }
    if (nonRecognizedArgs.length != 1) {
        System.err.println("???????");
        printUsage(PROGNAME);
        return false;
    }

    final File targetFile = new File(nonRecognizedArgs[0]);
    final RandomAccessFile targetRaFile;
    try {
        targetRaFile = new RandomAccessFile(targetFile, "rw");
    } catch (FileNotFoundException e) {
        System.err.println("????: " + targetFile.getPath());
        return false;
    }
    try {
        try {
            final ObbInfoV1 info = ObbInfoV1.fromFile(targetRaFile);
            System.err.println(
                    "?? OBB ???????: " + info.toString());
            return false;
        } catch (IOException e) {
            System.err
                    .println("????????: " + targetFile.getPath());
            return false;
        } catch (NotObbException e) {
            // 
        }

        int flag = 0;
        if (isOverlay) {
            flag |= ObbInfoV1.FLAG_OVERLAY;
        }
        if (salt != null) {
            flag |= ObbInfoV1.FLAG_SALTED;
        }
        final ObbInfoV1 obbInfo = new ObbInfoV1(flag, salt, pkgName, version.intValue());
        final ByteBuffer obbInfoBytes = obbInfo.toBytes();
        // ???
        targetRaFile.setLength(targetRaFile.length() + obbInfoBytes.remaining());
        targetRaFile.seek(targetRaFile.length() - obbInfoBytes.remaining());
        targetRaFile.write(obbInfoBytes.array(), obbInfoBytes.arrayOffset(), obbInfoBytes.remaining());
    } catch (IOException e) {
        System.err.println("OBB ?????????: " + targetFile.getPath());
        return false;
    } finally {
        try {
            targetRaFile.close();
        } catch (IOException e) {
            System.err.println("OBB ?????????: " + targetFile.getPath());
            return false;
        }
    }
    System.err.println("OBB ??????????: " + targetFile.getPath());
    return true;
}

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From source file:io.blobkeeper.file.util.FileUtils.java

public static boolean isFileEmpty(@NotNull File file, @NotNull IndexElt elt) {
    ByteBuffer fourBytes = ByteBuffer.allocate(4);
    try {//from w  w  w. j  a  va  2s  .co  m
        file.getFileChannel().read(fourBytes, elt.getOffset());
    } catch (IOException e) {
        log.error("Can't read blob file", e);
        throw new IllegalArgumentException(e);
    }

    fourBytes.flip();
    for (byte b : fourBytes.array()) {
        if (b != 0) {
            return false;
        }
    }

    return true;
}

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