org.broadinstitute.hellbender.utils.test

Class MiniClusterUtils

java.lang.Object

org.broadinstitute.hellbender.utils.test.MiniClusterUtils

public final class MiniClusterUtils
extends java.lang.Object

Utilities to help manage a MiniDFSCluster for use in tests.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	MiniClusterUtils.MiniClusterTest An interface for writing tests that run on a minicluster.

Constructor Summary

Constructors

Constructor and Description
MiniClusterUtils()

Method Summary

Modifier and Type	Method and Description
static org.apache.hadoop.hdfs.MiniDFSCluster	getMiniCluster()
static org.apache.hadoop.hdfs.MiniDFSCluster	getMiniCluster(org.apache.hadoop.conf.Configuration otherConf)
static org.apache.hadoop.fs.Path	getTempPath(org.apache.hadoop.hdfs.MiniDFSCluster cluster, java.lang.String prefix, java.lang.String extension)
static org.apache.hadoop.fs.Path	getWorkingDir(org.apache.hadoop.hdfs.MiniDFSCluster cluster)
static void	runOnIsolatedMiniCluster(MiniClusterUtils.MiniClusterTest test) Create a new isolated MiniDFSCluster, run a MiniClusterUtils.MiniClusterTest on it and then shut it down.
static void	stopCluster(org.apache.hadoop.hdfs.MiniDFSCluster cluster) shut down the cluster

Methods inherited from class java.lang.Object

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

Constructor Detail

MiniClusterUtils

public MiniClusterUtils()

Method Detail

getMiniCluster

public static org.apache.hadoop.hdfs.MiniDFSCluster getMiniCluster(org.apache.hadoop.conf.Configuration otherConf)
                                                            throws java.io.IOException

Returns:

a new empty cluster with the given Configuration

Throws:

java.io.IOException

getMiniCluster

public static org.apache.hadoop.hdfs.MiniDFSCluster getMiniCluster()
                                                            throws java.io.IOException

Returns:

a new empty cluster

Throws:

java.io.IOException

getTempPath

public static org.apache.hadoop.fs.Path getTempPath(org.apache.hadoop.hdfs.MiniDFSCluster cluster,
                                                    java.lang.String prefix,
                                                    java.lang.String extension)
                                             throws java.io.IOException

Returns:

a unique path in the filesystem on the given cluster

Throws:

java.io.IOException

getWorkingDir

public static org.apache.hadoop.fs.Path getWorkingDir(org.apache.hadoop.hdfs.MiniDFSCluster cluster)
                                               throws java.io.IOException

Returns:

path to the working directory in the given cluster

Throws:

java.io.IOException

stopCluster

public static void stopCluster(org.apache.hadoop.hdfs.MiniDFSCluster cluster)

shut down the cluster

runOnIsolatedMiniCluster

public static void runOnIsolatedMiniCluster(MiniClusterUtils.MiniClusterTest test)
                                     throws java.lang.Exception

Create a new isolated MiniDFSCluster, run a MiniClusterUtils.MiniClusterTest on it and then shut it down.

Parameters:

test - a function to run on the cluster, this should indicate success or failure by using Assert

Throws:

java.lang.Exception