/// <exception cref="System.IO.IOException"/>
/// <exception cref="System.Exception"/>
internal MapRunner(MultithreadedMapper <K1, V1, K2, V2> _enclosing, Mapper.Context
context)
{
this._enclosing = _enclosing;
reader = new MultithreadedMapper.SubMapRecordReader(this);
this.mapper = ReflectionUtils.NewInstance(this._enclosing.mapClass, context.GetConfiguration
());
MapContext <K1, V1, K2, V2> mapContext = new MapContextImpl <K1, V1, K2, V2>(this._enclosing
.outer.GetConfiguration(), this._enclosing.outer.GetTaskAttemptID(), this.reader
, new MultithreadedMapper.SubMapRecordWriter(this), context.GetOutputCommitter()
, new MultithreadedMapper.SubMapStatusReporter(this), this._enclosing.outer.GetInputSplit
());
this.subcontext = new WrappedMapper <K1, V1, K2, V2>().GetMapContext(mapContext);
this.reader.Initialize(context.GetInputSplit(), context);
}
