public static MRInstruction[] parseCombineInstructions(String str)
throws DMLUnsupportedOperationException, DMLRuntimeException {
MRInstruction[] inst = null;
if (str != null && !str.isEmpty()) {
String[] strlist = str.split(Instruction.INSTRUCTION_DELIM);
inst = new MRInstruction[strlist.length];
for (int i = 0; i < strlist.length; i++) {
MRINSTRUCTION_TYPE type = InstructionUtils.getMRType(strlist[i]);
if (type == MRINSTRUCTION_TYPE.CombineBinary)
inst[i] =
(CombineBinaryInstruction) CombineBinaryInstruction.parseInstruction(strlist[i]);
else if (type == MRINSTRUCTION_TYPE.CombineTernary)
inst[i] =
(CombineTernaryInstruction) CombineTernaryInstruction.parseInstruction(strlist[i]);
else throw new DMLRuntimeException("unknown combine instruction: " + strlist[i]);
}
}
return inst;
}
public static MRInstruction parseSingleInstruction(MRINSTRUCTION_TYPE mrtype, String str)
throws DMLUnsupportedOperationException, DMLRuntimeException {
if (str == null || str.isEmpty()) return null;
switch (mrtype) {
case Aggregate:
return AggregateInstruction.parseInstruction(str);
case ArithmeticBinary:
{
String opcode = InstructionUtils.getOpCode(str);
String[] parts = InstructionUtils.getInstructionPartsWithValueType(str);
// extract datatypes of first and second input operands
String dt1 =
parts[1].split(Instruction.DATATYPE_PREFIX)[1].split(Instruction.VALUETYPE_PREFIX)[0];
String dt2 =
parts[2].split(Instruction.DATATYPE_PREFIX)[1].split(Instruction.VALUETYPE_PREFIX)[0];
if (dt1.equalsIgnoreCase("SCALAR") || dt2.equalsIgnoreCase("SCALAR")) {
return ScalarInstruction.parseInstruction(str);
} else {
if (BinaryM.isOpcode(opcode)) return BinaryMInstruction.parseInstruction(str);
else return BinaryInstruction.parseInstruction(str);
}
}
case AggregateBinary:
return AggregateBinaryInstruction.parseInstruction(str);
case AggregateUnary:
return AggregateUnaryInstruction.parseInstruction(str);
case Ternary:
return TernaryInstruction.parseInstruction(str);
case Quaternary:
return QuaternaryInstruction.parseInstruction(str);
case Rand:
return RandInstruction.parseInstruction(str);
case Seq:
return SeqInstruction.parseInstruction(str);
case Reblock:
return ReblockInstruction.parseInstruction(str);
case Append:
return AppendInstruction.parseInstruction(str);
case Reorg:
return ReorgInstruction.parseInstruction(str);
case Replicate:
return ReplicateInstruction.parseInstruction(str);
case Unary:
{
String opcode = InstructionUtils.getOpCode(str);
String[] parts = InstructionUtils.getInstructionPartsWithValueType(str);
if (parts.length == 4
&& (opcode.equalsIgnoreCase("log") || opcode.equalsIgnoreCase("log_nz")))
return ScalarInstruction.parseInstruction(str);
else // default case
return UnaryInstruction.parseInstruction(str);
}
case MMTSJ:
return MMTSJMRInstruction.parseInstruction(str);
case PMMJ:
return PMMJMRInstruction.parseInstruction(str);
case MapMultChain:
return MapMultChainInstruction.parseInstruction(str);
case BinUaggChain:
return BinUaggChainInstruction.parseInstruction(str);
case UaggOuterChain:
return UaggOuterChainInstruction.parseInstruction(str);
case CombineTernary:
return CombineTernaryInstruction.parseInstruction(str);
case CombineBinary:
return CombineBinaryInstruction.parseInstruction(str);
case CombineUnary:
return CombineUnaryInstruction.parseInstruction(str);
case PickByCount:
return PickByCountInstruction.parseInstruction(str);
case CM_N_COV:
return CM_N_COVInstruction.parseInstruction(str);
case GroupedAggregate:
return GroupedAggregateInstruction.parseInstruction(str);
case MapGroupedAggregate:
return GroupedAggregateMInstruction.parseInstruction(str);
case RangeReIndex:
return RangeBasedReIndexInstruction.parseInstruction(str);
case ZeroOut:
return ZeroOutInstruction.parseInstruction(str);
case MatrixReshape:
return MatrixReshapeMRInstruction.parseInstruction(str);
case Sort: // workaround for dummy MR sort instruction
return SortMR.parseSortInstruction(str);
case CSVReblock:
return CSVReblockInstruction.parseInstruction(str);
case CSVWrite:
return CSVWriteInstruction.parseInstruction(str);
case ParameterizedBuiltin:
return ParameterizedBuiltinMRInstruction.parseInstruction(str);
case RemoveEmpty:
return RemoveEmptyMRInstruction.parseInstruction(str);
case Partition:
return DataPartitionMRInstruction.parseInstruction(str);
case CumsumAggregate:
return CumulativeAggregateInstruction.parseInstruction(str);
case CumsumSplit:
return CumulativeSplitInstruction.parseInstruction(str);
case CumsumOffset:
return CumulativeOffsetInstruction.parseInstruction(str);
case INVALID:
default:
throw new DMLRuntimeException("Invalid MR Instruction Type: " + mrtype);
}
}