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:Main.java

public static ByteBuffer rightSize(ByteBuffer in) {
    if (in == null) {
        return null;
    }/*from w  ww  .  j ava2s. com*/
    if (wrapsFullArray(in)) {
        return in;
    }
    return ByteBuffer.wrap(byteBufferToByteArray(in));
}

From source file:com.images3.data.impl.ShortUUID.java

private static byte[] toByteArray(UUID uuid) {
    ByteBuffer bb = ByteBuffer.wrap(new byte[16]);
    bb.putLong(uuid.getMostSignificantBits());
    bb.putLong(uuid.getLeastSignificantBits());
    return bb.array();
}

From source file:Main.java

public static float readFloat32(byte[] value, int start, int end) {
    byte[] bytes = Arrays.copyOfRange(value, start, end);
    float result = ByteBuffer.wrap(bytes).order(ByteOrder.LITTLE_ENDIAN).getFloat();
    return result;
}

From source file:Main.java

public static double readFloat64(byte[] value, int start, int end) {
    byte[] bytes = Arrays.copyOfRange(value, start, end);
    double result = ByteBuffer.wrap(bytes).order(ByteOrder.LITTLE_ENDIAN).getDouble();
    return result;
}

From source file:com.hengyi.japp.tools.UuidUtils.java

public static String decodeBase64Uuid(String compressedUuid) {
    byte[] byUuid = Base64.decodeBase64(compressedUuid);
    ByteBuffer bb = ByteBuffer.wrap(byUuid);
    UUID uuid = new UUID(bb.getLong(), bb.getLong());
    return uuid.toString();
}

From source file:com.pinterest.deployservice.common.CommonUtils.java

/**
 * TODO figure out how to use guava to achive this
 *
 * @return base64 encoded shorten UUID, e.g. 11YozyYYTvKmuUXpRDvoJA
 *//* w  ww. j  a  v  a 2 s  .com*/
public static String getBase64UUID() {
    UUID uuid = UUID.randomUUID();
    ByteBuffer buffer = ByteBuffer.wrap(new byte[16]);
    buffer.putLong(uuid.getMostSignificantBits());
    buffer.putLong(uuid.getLeastSignificantBits());
    String base64 = BaseEncoding.base64Url().omitPadding().encode(buffer.array());
    if (base64.charAt(0) == '_') {
        return 'x' + base64.substring(1);
    }
    if (base64.charAt(0) == '-') {
        return 'X' + base64.substring(1);
    }
    return base64;
}

From source file:Main.java

public static final ByteBuffer wrap(final ByteBuffer bb) {
    return (ByteBuffer) ByteBuffer.wrap(bb.array()).limit(bb.limit()).position(bb.position());
}

From source file:Main.java

public static ByteBuffer getServiceDataFromEnv(String serviceName, Map<String, String> env) {
    String meta = env.get(getPrefixServiceName(serviceName));
    if (null == meta) {
        return null;
    }/*from  w ww  .j  a va2  s  . c  o  m*/
    byte[] metaData = Base64.decodeBase64(meta);
    return ByteBuffer.wrap(metaData);
}

From source file:Main.java

public static ByteBuffer getDataBuffer() {
    String lineSeparator = System.getProperty("line.separator");
    StringBuilder sb = new StringBuilder();
    sb.append("test");
    sb.append(lineSeparator);//www.  ja  v a  2s .  c  o m
    sb.append("test");
    sb.append(lineSeparator);
    String str = sb.toString();
    Charset cs = Charset.forName("UTF-8");
    ByteBuffer bb = ByteBuffer.wrap(str.getBytes(cs));
    return bb;
}

From source file:com.cloudera.branchreduce.impl.thrift.Writables.java

public static ByteBuffer toByteBuffer(Writable writable) {
    return ByteBuffer.wrap(WritableUtils.toByteArray(writable));
}