childOpList.add(op);
ts_op.setChildOperators(childOpList);
op.getParentOperators().set(posn, ts_op);
Map<Operator<? extends Serializable>, GenMapRedCtx> mapCurrCtx = opProcCtx.getMapCurrCtx();
mapCurrCtx.put(ts_op, new GenMapRedCtx(childTask, null, null));
String streamDesc = taskTmpDir;
MapredWork cplan = (MapredWork) childTask.getWork();
if (setReducer) {
Operator<? extends Serializable> reducer = op.getChildOperators().get(0);
if (reducer.getClass() == JoinOperator.class) {
String origStreamDesc;
streamDesc = "$INTNAME";
origStreamDesc = streamDesc;
int pos = 0;
while (cplan.getAliasToWork().get(streamDesc) != null) {
streamDesc = origStreamDesc.concat(String.valueOf(++pos));
}
}
// TODO: Allocate work to remove the temporary files and make that
// dependent on the redTask
if (reducer.getClass() == JoinOperator.class) {
cplan.setNeedsTagging(true);
}
}
// Add the path to alias mapping
setTaskPlan(taskTmpDir, streamDesc, ts_op, cplan, local, tt_desc);
// This can be cleaned up as a function table in future
if (op instanceof AbstractMapJoinOperator<?>) {
AbstractMapJoinOperator<? extends MapJoinDesc> mjOp = (AbstractMapJoinOperator<? extends MapJoinDesc>) op;
opProcCtx.setCurrMapJoinOp(mjOp);
GenMRMapJoinCtx mjCtx = opProcCtx.getMapJoinCtx(mjOp);
if (mjCtx == null) {
mjCtx = new GenMRMapJoinCtx(taskTmpDir, tt_desc, ts_op, null);
} else {
mjCtx.setTaskTmpDir(taskTmpDir);
mjCtx.setTTDesc(tt_desc);
mjCtx.setRootMapJoinOp(ts_op);
}
opProcCtx.setMapJoinCtx(mjOp, mjCtx);
opProcCtx.getMapCurrCtx().put(parent,
new GenMapRedCtx(childTask, null, null));
setupBucketMapJoinInfo(cplan, mjOp, false);
}
currTopOp = null;
String currAliasId = null;