/// <exception cref="System.IO.IOException"/>
/// <exception cref="System.Exception"/>
protected override void Map(LongWritable key, Text value, Mapper.Context context)
{
// get the map phase progress
float mapPhaseProgress = ((float)++recordCount) / InputLines;
// get the weighted map phase progress
float weightedMapProgress = progressRange * mapPhaseProgress;
// check the map progress
NUnit.Framework.Assert.AreEqual("Invalid progress in map", weightedMapProgress, context
.GetProgress(), 0f);
context.Write(new Text(value.ToString() + recordCount), value);
}
/// <exception cref="System.IO.IOException"/>
/// <exception cref="System.Exception"/>
protected override void Cleanup(Mapper.Context context)
{
// check if the attempt progress is at the progress boundary
NUnit.Framework.Assert.AreEqual("Invalid progress in map cleanup", progressRange,
context.GetProgress(), 0f);
}
// check map task reports
// TODO fix testcase
// Disabling checks for now to get builds to run
/*
* reports = job.getTaskReports(TaskType.MAP);
* assertEquals(numMaps, reports.length);
* assertEquals("map > sort", reports[0].getState());
*
* // check reduce task reports
* reports = job.getTaskReports(TaskType.REDUCE);
* assertEquals(numReduces, reports.length);
* assertEquals("reduce > reduce", reports[0].getState());
*/
// an input with 4 lines
/// <exception cref="System.IO.IOException"/>
protected override void Setup(Mapper.Context context)
{
// check if the map task attempt progress is 0
NUnit.Framework.Assert.AreEqual("Invalid progress in map setup", 0.0f, context.GetProgress
(), 0f);
// define the progress boundaries
if (context.GetNumReduceTasks() == 0)
{
progressRange = 1f;
}
else
{
progressRange = 0.667f;
}
}