public static MRInstruction parseSingleInstruction(String str)
throws DMLUnsupportedOperationException, DMLRuntimeException {
if (str == null || str.isEmpty()) return null;
MRINSTRUCTION_TYPE mrtype = InstructionUtils.getMRType(str);
return parseSingleInstruction(mrtype, str);
}
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;
}