public String getCreateVarInstructions(String outputFileName, String outputLabel)
throws LopsException {
if (getDataType() == DataType.MATRIX || getDataType() == DataType.FRAME) {
if (isTransient())
throw new LopsException("getInstructions() should not be called for transient nodes.");
OutputParameters oparams = getOutputParameters();
String fmt = "";
// TODO: following logic should change once we LOPs encode key-value-class information.
if (oparams.getFormat() == Format.TEXT) fmt = "textcell";
else if (oparams.getFormat() == Format.MM) fmt = "matrixmarket";
else if (oparams.getFormat() == Format.CSV) fmt = "csv";
else {
if (oparams.getRowsInBlock() > 0 || oparams.getColsInBlock() > 0) fmt = "binaryblock";
else fmt = "binarycell";
}
StringBuilder sb = new StringBuilder();
sb.append("CP");
sb.append(OPERAND_DELIMITOR);
sb.append("createvar");
sb.append(OPERAND_DELIMITOR);
sb.append(outputLabel);
sb.append(OPERAND_DELIMITOR);
sb.append(outputFileName);
sb.append(OPERAND_DELIMITOR);
sb.append(false);
sb.append(OPERAND_DELIMITOR); // only persistent reads come here!
sb.append(fmt);
sb.append(OPERAND_DELIMITOR);
sb.append(oparams.getNumRows());
sb.append(OPERAND_DELIMITOR);
sb.append(oparams.getNumCols());
sb.append(OPERAND_DELIMITOR);
sb.append(oparams.getRowsInBlock());
sb.append(OPERAND_DELIMITOR);
sb.append(oparams.getColsInBlock());
sb.append(OPERAND_DELIMITOR);
sb.append(oparams.getNnz());
/* Format-specific properties */
if (oparams.getFormat() == Format.CSV) {
sb.append(OPERAND_DELIMITOR);
sb.append(createVarCSVHelper());
}
return sb.toString();
} else {
throw new LopsException(
this.printErrorLocation() + "In Data Lop, Unexpected data type " + getDataType());
}
}
