Example usage for org.apache.hadoop.hdfs DFSUtilClient bytes2String

Introduction

In this page you can find the example usage for org.apache.hadoop.hdfs DFSUtilClient bytes2String.

Prototype

public static String bytes2String(byte[] bytes) 

Source Link

Document

Converts a byte array to a string using UTF8 encoding.

Usage

From source file:TestDFSUtilClient.java

License:Apache License

@Test
public void testBytes2String() {
    final long numLoop = 100000000;
    final byte[] bytes = "testBytes2String".getBytes(StandardCharsets.UTF_8);
    String str = null;//from   ww  w  . j  ava2 s.  c om
    long start = Time.monotonicNow();
    for (int i = 0; i < numLoop; i++) {
        str = DFSUtilClient.bytes2String(bytes);
    }
    long end = Time.monotonicNow();
    System.out.println(str);
    System.out.println("Elapsed time: " + (end - start));

    start = Time.monotonicNow();
    for (int i = 0; i < numLoop; i++) {
        str = new String(bytes, StandardCharsets.UTF_8);
    }
    end = Time.monotonicNow();
    System.out.println(str);
    System.out.println("Elapsed time: " + (end - start));

    start = Time.monotonicNow();
    for (int i = 0; i < numLoop; i++) {
        str = DFSUtilClient.bytes2String(bytes);
    }
    end = Time.monotonicNow();
    System.out.println(str);
    System.out.println("Elapsed time: " + (end - start));

    start = Time.monotonicNow();
    for (int i = 0; i < numLoop; i++) {
        str = new String(bytes, StandardCharsets.UTF_8);
    }
    end = Time.monotonicNow();
    System.out.println(str);
    System.out.println("Elapsed time: " + (end - start));
}

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