Java ValueEval类代码示例

import org.apache.poi.ss.formula.eval.ValueEval; //导入依赖的package包/类
@Override
public ValueEval evaluate(int srcRowIndex, int srcColumnIndex,
		ValueEval arg0, ValueEval arg1, ValueEval arg2)
{
/*
	  try
	{
		ValueEval ve = OperandResolver.getSingleValue(arg0, srcRowIndex, srcColumnIndex);
	} catch (EvaluationException e)
	{
		// TODO Auto-generated catch block
		e.printStackTrace();
	}

	*/
	//evalu
	return new NumberEval(2);
}
 

import org.apache.poi.ss.formula.eval.ValueEval; //导入依赖的package包/类
static List<ValueEval> prepareQueryArgs(List<ValueEval> queryArgs) throws EvaluationException {
    List<ValueEval> args = new LinkedList<>();
    
    for (ValueEval arg : queryArgs) {
        
        if (arg instanceof AreaEval) {
            AreaEval range = (AreaEval) arg;
            
            for (int i = range.getFirstRow(); i <= range.getLastRow(); i++) {
                for (int j = range.getFirstColumn(); j <= range.getLastColumn(); j++)
                    { args.add(getSingleValue(arg, i, j)); }
            }
        } else {
            args.add(arg);  
        }
    }
    
    return args;
}
 

import org.apache.poi.ss.formula.eval.ValueEval; //导入依赖的package包/类
@Setup(Level.Trial)
public void initialize() throws Exception {
    String excelFile = "src/test/resources/datamodel/nativepoi/CalcEngine_vs_POI_" + cell_iterations + "times.xlsx";

    XSSFWorkbook wb = new XSSFWorkbook(excelFile);
    XSSFEvaluationWorkbook ewb = XSSFEvaluationWorkbook.create(wb);

    this.ccEvaluator = new SpreadsheetEvaluator(Converters.toDataModel(wb));
    this.poiEvaluator = new WorkbookEvaluator(ewb, IStabilityClassifier.TOTALLY_IMMUTABLE, null);

    this.ccExpectedValues = new Object[from + cell_iterations];
    for (int i = from; i < from + cell_iterations; i++)
        this.ccExpectedValues[i] = ccEvaluator.evaluate(fromA1Address(columnA + i)).getResult().get();

    this.poiExpectedValues = new ValueEval[from + cell_iterations - 1];
    for (int i = from - 1; i < from + cell_iterations - 1; i++)
        this.poiExpectedValues[i] = poiEvaluator.evaluate(ewb.getSheet(0).getCell(i, columnAIndex));

    this.addressA = new IA1Address[from + cell_iterations];
    for (int i = from; i < from + cell_iterations; i++)
        this.addressA[i] = fromA1Address(columnA + i);

    this.addressB = new EvaluationCell[from + cell_iterations - 1];
    for (int i = from - 1; i < from + cell_iterations - 1; i++)
        this.addressB[i] = ewb.getSheet(0).getCell(i, columnAIndex);
}
 

import org.apache.poi.ss.formula.eval.ValueEval; //导入依赖的package包/类
@Setup(Level.Trial)
public void initialize() throws Exception {
    String excelFile = "src/test/resources/datamodel/nativepoi/CalcEngine_vs_POI_set" + cell_iterations + "formulas.xlsx";

    XSSFWorkbook wb = new XSSFWorkbook(excelFile);
    XSSFEvaluationWorkbook ewb = XSSFEvaluationWorkbook.create(wb);

    this.ccEvaluator = new SpreadsheetEvaluator(Converters.toDataModel(wb));
    this.poiEvaluator = new WorkbookEvaluator(ewb, IStabilityClassifier.TOTALLY_IMMUTABLE, null);

    this.ccExpectedValues = new Object[from + cell_iterations];
    for (int i = from; i < from + cell_iterations; i++)
        this.ccExpectedValues[i] = ccEvaluator.evaluate(fromA1Address(columnB + i)).getResult().get();

    this.poiExpectedValues = new ValueEval[from + cell_iterations - 1];
    for (int i = from - 1; i < from + cell_iterations - 1; i++)
        this.poiExpectedValues[i] = poiEvaluator.evaluate(ewb.getSheet(0).getCell(i, columnAIndex));

    this.addressA = new IA1Address[from + cell_iterations];
    for (int i = from; i < from + cell_iterations; i++)
        this.addressA[i] = fromA1Address(columnA + i);

    this.addressB = new EvaluationCell[from + cell_iterations - 1];
    for (int i = from - 1; i < from + cell_iterations - 1; i++)
        this.addressB[i] = ewb.getSheet(0).getCell(i, columnAIndex);
}
 

import org.apache.poi.ss.formula.eval.ValueEval; //导入依赖的package包/类
@Benchmark
public void apachepoi_ExcelFile_ExecutionTimeIsOk(CalcEngine_vs_POI_One_Formula_Test state, Blackhole bh) {
    for (int i = state.from - 1; i < state.from + state.cell_iterations - 1; i++) {
        ValueEval value = state.poiEvaluator.evaluate(state.addressB[i]);
        assertThat(value).isEqualTo(state.poiExpectedValues[i]); /* comment for better performance */
        bh.consume(value);
    }
}
 

import org.apache.poi.ss.formula.eval.ValueEval; //导入依赖的package包/类
@Benchmark
public void apachepoi_ExcelFile_ExecutionTimeIsOk(CalcEngine_vs_POI_Formula_Set_Test state, Blackhole bh) {
    for (int i = state.from - 1; i < state.from + state.cell_iterations - 1; i++) {
        ValueEval value = state.poiEvaluator.evaluate(state.addressB[i]);
        assertThat(value).isEqualTo(state.poiExpectedValues[i]); /* comment for better performance */
        bh.consume(value);
    }
}
 

import org.apache.poi.ss.formula.eval.ValueEval; //导入依赖的package包/类
/**
 * This function does nothing, since it should never be evaluated.
 * DEFINE function is a spreadsheet metadata and it cannot have a value.
 */
@Override
public ValueEval evaluate(ValueEval[] args, OperationEvaluationContext ec) {
    log.debug("In evaluate() of DEFINE function. Args = {}", Arrays.toString(args));
    
    return new StringEval(DefineFunction.class.getAnnotation(CustomFunctionMeta.class).value());
}
 

import org.apache.poi.ss.formula.eval.ValueEval; //导入依赖的package包/类
protected List<ValueEval> fetchValuesWithFullScan(IDataSet set, Map<Integer, Object> where, int columnIndex) {

        List<ValueEval> found = new ArrayList<>();
        
        for (IDsRow row : set) {
            boolean allFieldsMatch = true;
            int allFieldsPresent = where.size();
            
            for (Entry<Integer, Object> whereColumn : where.entrySet()) {
                IDsCell cell = row.getCell(whereColumn.getKey());
                
                if (cell != null) {
                    allFieldsPresent--;
                    Object extValue = coerceValueTo(whereColumn.getValue());
                    /* Such a strange conversion because of Number types - everything is Double in POI */
                    Object intValue = coerceValueTo(valueToValueEval(cell.getValue().get()));

                    if (!intValue.equals(extValue)) { allFieldsMatch = false; break; }
                }
            }
            
            if (allFieldsPresent == 0 && allFieldsMatch) {
                found.add(valueToValueEval(row.getCell(columnIndex).getValue().get()));
                break; // collecting only the first matching record according to product owner requirements
            }
        }

        return found;
    }
 

import org.apache.poi.ss.formula.eval.ValueEval; //导入依赖的package包/类
public ValueEval evaluate(ValueEval[] args, OperationEvaluationContext ec) {		
	try {
		final ValueEval p = OperandResolver.getSingleValue(args[0], ec.getRowIndex(), ec.getColumnIndex()) ;
		final ValueEval mu = OperandResolver.getSingleValue(args[1], ec.getRowIndex(), ec.getColumnIndex()) ;
		final ValueEval sigma = OperandResolver.getSingleValue(args[2], ec.getRowIndex(), ec.getColumnIndex()) ;			
		return new NumberEval(this.compute(OperandResolver.coerceValueToDouble(p), OperandResolver.coerceValueToDouble(mu), OperandResolver.coerceValueToDouble(sigma)));
	} catch (EvaluationException e) {
		return e.getErrorEval();
	}			 		
}
 

import org.apache.poi.ss.formula.eval.ValueEval; //导入依赖的package包/类
public final ValueEval evaluate(ValueEval[] args, int srcRowIndex, int srcColumnIndex) {
	switch (args.length) {
		case 1:
			return evaluate(srcRowIndex, srcColumnIndex, args[0], null);
		case 2:
			return evaluate(srcRowIndex, srcColumnIndex, args[0], args[1]);
	}
	return ErrorEval.VALUE_INVALID;
}
 

import org.apache.poi.ss.formula.eval.ValueEval; //导入依赖的package包/类
@Override
public ValueEval evaluate(ValueEval[] args, OperationEvaluationContext ec) {
    return super.evaluate(args, ec);
}
 

import org.apache.poi.ss.formula.eval.ValueEval; //导入依赖的package包/类
@Override
public void putVertexToStack(ValueEval value, IExecutionGraphVertex vertex) {
    if (value == null) { throw new CalculationEngineException("ValueEval to assosiate vertex with cannot be null."); }
    this.valueToVertex.putIfAbsent(value, new LinkedList<>());
    this.valueToVertex.get(value).push((ExecutionGraphVertex) vertex);
}
 

import org.apache.poi.ss.formula.eval.ValueEval; //导入依赖的package包/类
@Override
public ExecutionGraphVertex getVertexFromStack(ValueEval value) {
    if (value == null) { throw new CalculationEngineException("ValueEval to assosiate vertex with cannot be null."); }
    /* the value is taken from the Deque while it is taken from the stack in poi WorkbookEvaluator class */
    return this.valueToVertex.get(value).pop();
}
 

import org.apache.poi.ss.formula.eval.ValueEval; //导入依赖的package包/类
protected static <T extends ValueEval> T dereference(Class<T> target, ValueEval value) {
    if (!(value instanceof RefEval)) { return null; }
    
    ValueEval candidateValue = ((RefEval) value).getInnerValueEval(0);
    return candidateValue.getClass() == target ? (T) candidateValue : null;
}
 

import org.apache.poi.ss.formula.eval.ValueEval; //导入依赖的package包/类
private static TwoDEval toArrayEval(List<ValueEval> outputValues) {
    ArrayEval ae = new ArrayEval();
    ae.setValues(outputValues);
    return ae;
}