com.bigdata.bfs

Class TestRandomBlockOps.StressTest

java.lang.Object

com.bigdata.bfs.TestRandomBlockOps.StressTest

Enclosing class:

TestRandomBlockOps

protected static class TestRandomBlockOps.StressTest
extends Object

Stress test helper class.

Version:

$Id$

Author:

Bryan Thompson

Constructor Summary

Constructors

Constructor and Description
TestRandomBlockOps.StressTest(BigdataFileSystem repo, int limit, com.bigdata.bfs.TestRandomBlockOps.Op gen)

Method Summary

Methods

Modifier and Type	Method and Description
protected byte[]	copy(byte[] b, int off, int len) Return a copy of those the bytes between off (inclusive) and off+len (exclusive).
protected long	getFirstBlock(String id, int version) Return the first non-deleted block identifier for the given file version.
protected long	getRandomBlock(String id, int version) Return a randomly selected block identifier from among the non-deleted blocks for the given file version.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TestRandomBlockOps.StressTest

public TestRandomBlockOps.StressTest(BigdataFileSystem repo,
                             int limit,
                             com.bigdata.bfs.TestRandomBlockOps.Op gen)

Method Detail

copy

protected byte[] copy(byte[] b,
          int off,
          int len)

Return a copy of those the bytes between off (inclusive) and off+len (exclusive).

Parameters:

b - The bytes.

off - The offset of the first byte to copy.

len - The #of bytes to copy .

Returns:

The copy of those bytes.

getFirstBlock

protected long getFirstBlock(String id,
                 int version)

Return the first non-deleted block identifier for the given file version.

Parameters:

id - The file identifier.

version - The version identifier.

Returns:

The 1st non-deleted block identifier -or- -1L iff there are no blocks for that file version.

getRandomBlock

protected long getRandomBlock(String id,
                  int version)

Return a randomly selected block identifier from among the non-deleted blocks for the given file version.

Parameters:

id - The file identifier.

version - The version identifier.

Returns:

The block identifier -or- -1L iff there are no non-deleted blocks.