Example usage for org.apache.hadoop.io.compress.snappy SnappyCompressor isNativeCodeLoaded

Introduction

In this page you can find the example usage for org.apache.hadoop.io.compress.snappy SnappyCompressor isNativeCodeLoaded.

Prototype

public static boolean isNativeCodeLoaded() 

Source Link

Usage

From source file:org.apache.ignite.internal.processors.hadoop.HadoopSnappyTest.java

License:Apache License

/**
 * Internal check routine.//from   w w  w  .j  a  va  2  s. c o m
 *
 * @throws Throwable If failed.
 */
public static void checkSnappy() throws Throwable {
    try {
        byte[] expBytes = new byte[BYTE_SIZE];
        byte[] actualBytes = new byte[BYTE_SIZE];

        for (int i = 0; i < expBytes.length; i++)
            expBytes[i] = (byte) ThreadLocalRandom.current().nextInt(16);

        SnappyCodec codec = new SnappyCodec();

        codec.setConf(new Configuration());

        ByteArrayOutputStream baos = new ByteArrayOutputStream();

        try (CompressionOutputStream cos = codec.createOutputStream(baos)) {
            cos.write(expBytes);
            cos.flush();
        }

        try (CompressionInputStream cis = codec
                .createInputStream(new ByteArrayInputStream(baos.toByteArray()))) {
            int read = cis.read(actualBytes, 0, actualBytes.length);

            assert read == actualBytes.length;
        }

        assert Arrays.equals(expBytes, actualBytes);
    } catch (Throwable e) {
        System.out.println("Snappy check failed:");
        System.out
                .println("### NativeCodeLoader.isNativeCodeLoaded:  " + NativeCodeLoader.isNativeCodeLoaded());
        System.out
                .println("### SnappyCompressor.isNativeCodeLoaded:  " + SnappyCompressor.isNativeCodeLoaded());

        throw e;
    }
}

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