@Override
public void load(
MapJoinTableContainer[] mapJoinTables, MapJoinTableContainerSerDe[] mapJoinTableSerdes)
throws HiveException {
Map<Integer, String> parentToInput = desc.getParentToInput();
Map<Integer, Long> parentKeyCounts = desc.getParentKeyCounts();
for (int pos = 0; pos < mapJoinTables.length; pos++) {
if (pos == desc.getPosBigTable()) {
continue;
}
String inputName = parentToInput.get(pos);
LogicalInput input = tezContext.getInput(inputName);
try {
input.start();
tezContext
.getTezProcessorContext()
.waitForAnyInputReady(Collections.<Input>singletonList(input));
} catch (Exception e) {
throw new HiveException(e);
}
try {
KeyValueReader kvReader = (KeyValueReader) input.getReader();
Long keyCountObj = parentKeyCounts.get(pos);
long keyCount = (keyCountObj == null) ? -1 : keyCountObj.longValue();
VectorMapJoinFastTableContainer vectorMapJoinFastTableContainer =
new VectorMapJoinFastTableContainer(desc, hconf, keyCount);
while (kvReader.next()) {
vectorMapJoinFastTableContainer.putRow(
null, (BytesWritable) kvReader.getCurrentKey(),
null, (BytesWritable) kvReader.getCurrentValue());
}
vectorMapJoinFastTableContainer.seal();
mapJoinTables[pos] = (MapJoinTableContainer) vectorMapJoinFastTableContainer;
} catch (IOException e) {
throw new HiveException(e);
} catch (SerDeException e) {
throw new HiveException(e);
} catch (Exception e) {
throw new HiveException(e);
}
}
}
@Override
public void run(Map<String, LogicalInput> inputs, Map<String, LogicalOutput> outputs)
throws Exception {
LOG.info("Running map: " + processorContext.getUniqueIdentifier());
initTask();
if (inputs.size() != 1 || outputs.size() != 1) {
throw new IOException(
"Cannot handle multiple inputs or outputs"
+ ", inputCount="
+ inputs.size()
+ ", outputCount="
+ outputs.size());
}
LogicalInput in = inputs.values().iterator().next();
LogicalOutput out = outputs.values().iterator().next();
// Sanity check
if (!(in instanceof MRInputLegacy)) {
throw new IOException(
new TezException("Only Simple Input supported. Input: " + in.getClass()));
}
MRInputLegacy input = (MRInputLegacy) in;
input.init();
Configuration incrementalConf = input.getConfigUpdates();
if (incrementalConf != null) {
for (Entry<String, String> entry : incrementalConf) {
jobConf.set(entry.getKey(), entry.getValue());
}
}
KeyValueWriter kvWriter = null;
if (!(out instanceof OnFileSortedOutput)) {
kvWriter = ((MROutput) out).getWriter();
} else {
kvWriter = ((OnFileSortedOutput) out).getWriter();
}
if (useNewApi) {
runNewMapper(jobConf, mrReporter, input, kvWriter);
} else {
runOldMapper(jobConf, mrReporter, input, kvWriter);
}
done(out);
}