/// <summary>
/// Tests the class loader set by
/// <see cref="Org.Apache.Hadoop.Conf.Configuration.SetClassLoader(Sharpen.ClassLoader)
/// "/>
/// is inherited by any
/// <see cref="WrappedRecordReader{K, U}"/>
/// s created by
/// <see cref="CompositeRecordReader{K, V, X}"/>
/// </summary>
/// <exception cref="System.Exception"/>
public virtual void TestClassLoader()
{
Configuration conf = new Configuration();
TestWrappedRRClassloader.Fake_ClassLoader classLoader = new TestWrappedRRClassloader.Fake_ClassLoader
();
conf.SetClassLoader(classLoader);
NUnit.Framework.Assert.IsTrue(conf.GetClassLoader() is TestWrappedRRClassloader.Fake_ClassLoader
);
FileSystem fs = FileSystem.Get(conf);
Path testdir = new Path(Runtime.GetProperty("test.build.data", "/tmp")).MakeQualified
(fs);
Path @base = new Path(testdir, "/empty");
Path[] src = new Path[] { new Path(@base, "i0"), new Path("i1"), new Path("i2") };
conf.Set(CompositeInputFormat.JoinExpr, CompositeInputFormat.Compose("outer", typeof(
TestWrappedRRClassloader.IF_ClassLoaderChecker), src));
CompositeInputFormat <NullWritable> inputFormat = new CompositeInputFormat <NullWritable
>();
// create dummy TaskAttemptID
TaskAttemptID tid = new TaskAttemptID("jt", 1, TaskType.Map, 0, 0);
conf.Set(MRJobConfig.TaskAttemptId, tid.ToString());
inputFormat.CreateRecordReader(inputFormat.GetSplits(Job.GetInstance(conf))[0], new
TaskAttemptContextImpl(conf, tid));
}
/// <exception cref="System.Exception"/>
public virtual int TestFormat(Configuration conf, int tupleSize, bool firstTuple,
bool secondTuple, TestJoinProperties.TestType ttype)
{
Job job = Job.GetInstance(conf);
CompositeInputFormat format = new CompositeInputFormat();
int count = 0;
foreach (InputSplit split in (IList <InputSplit>)format.GetSplits(job))
{
TaskAttemptContext context = MapReduceTestUtil.CreateDummyMapTaskAttemptContext(conf
);
RecordReader reader = format.CreateRecordReader(split, context);
MapContext mcontext = new MapContextImpl(conf, context.GetTaskAttemptID(), reader
, null, null, MapReduceTestUtil.CreateDummyReporter(), split);
reader.Initialize(split, mcontext);
WritableComparable key = null;
Writable value = null;
while (reader.NextKeyValue())
{
key = (WritableComparable)reader.GetCurrentKey();
value = (Writable)reader.GetCurrentValue();
ValidateKeyValue(key, value, tupleSize, firstTuple, secondTuple, ttype);
count++;
}
}
return(count);
}
