/// <summary>
/// Construct a collector capable of handling the specified number of
/// children.
/// </summary>
public JoinCollector(CompositeRecordReader <K, V, X> _enclosing, int card)
{
this._enclosing = _enclosing;
// Generic array assignment
this.iters = new ResetableIterator[card];
for (int i = 0; i < this.iters.Length; ++i)
{
this.iters[i] = this._enclosing.Empty;
}
}
/// <exception cref="System.IO.IOException"/>
/// <exception cref="System.Exception"/>
public override RecordReader CreateRecordReader(InputSplit split, TaskAttemptContext
taskContext)
{
// child types unknowable
if (!(split is CompositeInputSplit))
{
throw new IOException("Invalid split type:" + split.GetType().FullName);
}
CompositeInputSplit spl = (CompositeInputSplit)split;
int capacity = kids.Count;
CompositeRecordReader ret = null;
try
{
if (!rrCstrMap.Contains(ident))
{
throw new IOException("No RecordReader for " + ident);
}
ret = (CompositeRecordReader)rrCstrMap[ident].NewInstance(id, taskContext.GetConfiguration
(), capacity, cmpcl);
}
catch (MemberAccessException e)
{
throw new IOException(e);
}
catch (InstantiationException e)
{
throw new IOException(e);
}
catch (TargetInvocationException e)
{
throw new IOException(e);
}
for (int i = 0; i < capacity; ++i)
{
ret.Add(((ComposableRecordReader)kids[i].CreateRecordReader(spl.Get(i), taskContext
)));
}
return((ComposableRecordReader)ret);
}
public _IComparer_84(CompositeRecordReader <K, V, X> _enclosing)
{
this._enclosing = _enclosing;
}
