Example usage for org.apache.cassandra.io.util RandomAccessReader mark

Introduction

In this page you can find the example usage for org.apache.cassandra.io.util RandomAccessReader mark.

Prototype

public DataPosition mark() 

Source Link

Usage

From source file:com.fullcontact.cassandra.io.util.BufferedRandomAccessFileTest.java

License:Apache License

@Test
public void testBytesPastMark() throws IOException {
    File tmpFile = File.createTempFile("overflowtest", "bin");
    tmpFile.deleteOnExit();/*  w w  w. j  a  va2s  .c o m*/

    // Create the BRAF by filename instead of by file.
    final RandomAccessReader r = RandomAccessReader.open(new Path(new File(tmpFile.getPath()).getPath()), fs);
    assert tmpFile.getPath().equals(r.getPath());

    // Create a mark and move the rw there.
    final FileMark mark = r.mark();
    r.reset(mark);

    // Expect this call to succeed.
    r.bytesPastMark(mark);
}

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From source file:com.fullcontact.cassandra.io.util.BufferedRandomAccessFileTest.java

License:Apache License

@Test
public void testMarkAndReset() throws IOException {
    SequentialWriter w = createTempFile("brafTestMark");
    w.write(new byte[30]);

    w.close();//  www.j a  v  a2s. c  o m

    RandomAccessReader file = RandomAccessReader.open(w, fs);

    file.seek(10);
    FileMark mark = file.mark();

    file.seek(file.length());
    assertTrue(file.isEOF());

    file.reset();
    assertEquals(file.bytesRemaining(), 20);

    file.seek(file.length());
    assertTrue(file.isEOF());

    file.reset(mark);
    assertEquals(file.bytesRemaining(), 20);

    file.seek(file.length());
    assertEquals(file.bytesPastMark(), 20);
    assertEquals(file.bytesPastMark(mark), 20);

    file.reset(mark);
    assertEquals(file.bytesPastMark(), 0);

    file.close();
}

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From source file:com.fullcontact.cassandra.io.util.BufferedRandomAccessFileTest.java

License:Apache License

@Test(expected = AssertionError.class)
public void testAssertionErrorWhenBytesPastMarkIsNegative() throws IOException {
    SequentialWriter w = createTempFile("brafAssertionErrorWhenBytesPastMarkIsNegative");
    w.write(new byte[30]);
    w.close();/*from   w  w  w.  j a va  2s.  c om*/

    RandomAccessReader r = RandomAccessReader.open(w, fs);
    r.seek(10);
    r.mark();

    r.seek(0);
    r.bytesPastMark();
}

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