public boolean evaluate(FeatureClassInfo fci, List<Object> row, StringBuffer reasoning) {
boolean ret = false;
switch (op) {
case NONE_CONN:
break;
case AND_CONN:
case and_CONN:
ret = true;
for (Expression e : exp) {
ret = e.evaluate(fci, row, reasoning);
if (!ret) {
break;
}
}
break;
case or_CONN:
case OR_CONN:
for (Expression e : exp) {
ret = e.evaluate(fci, row, reasoning);
if (ret) {
break;
}
}
break;
default:
}
if (reasoning != null) {
reasoning.append("\n-> " + toString() + ": evaluates " + ret);
}
return ret;
}
@Test
public void falseConstant() throws EvaluationException {
Expression e = new ConstantExpression(false);
assertEquals(Boolean.FALSE, e.evaluate(topLevel));
e = new ConstantExpression(Boolean.FALSE);
assertEquals(Boolean.FALSE, e.evaluate(topLevel));
}
@Test
public void trueConstant() throws EvaluationException {
Expression e = new ConstantExpression(true);
assertEquals(Boolean.TRUE, e.evaluate(topLevel));
e = new ConstantExpression(Boolean.TRUE);
assertEquals(Boolean.TRUE, e.evaluate(topLevel));
}
/**
* Calculates the <tt>ComparisonOperation</tt>'s logical value based on the certain property
* values of the given <tt>Feature</tt>. TODO: Improve datatype handling.
*
* @param feature that determines the property values
* @return true, if the <tt>FeatureFilter</tt> evaluates to true, else false
* @throws FilterEvaluationException if the expressions to be compared are of different types
*/
public boolean evaluate(Feature feature) throws FilterEvaluationException {
Object value1 = expr1.evaluate(feature);
Object value2 = expr2.evaluate(feature);
// compare Strings
if (value1 instanceof String && value2 instanceof String) {
switch (getOperatorId()) {
case OperationDefines.PROPERTYISEQUALTO:
{
if (value1 == null || value2 == null) return false;
return value1.equals(value2);
}
case OperationDefines.PROPERTYISLESSTHAN:
case OperationDefines.PROPERTYISGREATERTHAN:
case OperationDefines.PROPERTYISLESSTHANOREQUALTO:
case OperationDefines.PROPERTYISGREATERTHANOREQUALTO:
{
throw new FilterEvaluationException(
"'" + getOperatorName() + "' can not be applied to " + "String values!");
}
default:
{
throw new FilterEvaluationException(
"Unknown comparison operation: '" + getOperatorName() + "'!");
}
}
}
// compare Doubles
else if ((value1 instanceof Number) && (value2 instanceof Number)) {
double d1 = Double.parseDouble(value1.toString());
double d2 = Double.parseDouble(value2.toString());
switch (getOperatorId()) {
case OperationDefines.PROPERTYISEQUALTO:
return d1 == d2;
case OperationDefines.PROPERTYISLESSTHAN:
return d1 < d2;
case OperationDefines.PROPERTYISGREATERTHAN:
return d1 > d2;
case OperationDefines.PROPERTYISLESSTHANOREQUALTO:
return d1 <= d2;
case OperationDefines.PROPERTYISGREATERTHANOREQUALTO:
return d1 >= d2;
default:
{
throw new FilterEvaluationException(
"Unknown comparison operation: '" + getOperatorName() + "'!");
}
}
} else {
// throw new FilterEvaluationException (
// "Can not apply operation '" + getOperatorName () + "' to "
// + "different datatypes!");
return false;
}
}
protected void initMap(Map<Expression, Expression> source, Map target, FacesContext context) {
for (Map.Entry<Expression, Expression> entry : source.entrySet()) {
Expression k = entry.getKey();
Expression v = entry.getValue();
//noinspection unchecked
target.put(
k.evaluate(context.getELContext()),
(v != null) ? v.evaluate(context.getELContext()) : null);
}
}
public RGBColor evaluate() {
ArrayList<RGBColor> evaluatedColors = new ArrayList<RGBColor>();
for (Expression operand : myOperands) {
evaluatedColors.add(operand.evaluate());
}
return ColorCombinations.sum(evaluatedColors);
}
@Override
public boolean evaluate(Tuple tuple, ImmutableBytesWritable ptr) {
BigDecimal result = null;
for (int i = 0; i < children.size(); i++) {
Expression childExpr = children.get(i);
if (!childExpr.evaluate(tuple, ptr)) {
return false;
}
if (ptr.getLength() == 0) {
return true;
}
PDataType childType = children.get(i).getDataType();
BigDecimal bd = (BigDecimal) PDataType.DECIMAL.toObject(ptr, childType);
if (result == null) {
result = bd;
} else {
result = result.divide(bd, PDataType.DEFAULT_MATH_CONTEXT);
}
}
if (maxLength != null && scale != null) {
result = NumberUtil.setDecimalWidthAndScale(result, maxLength, scale);
}
if (result == null) {
throw new ValueTypeIncompatibleException(PDataType.DECIMAL, maxLength, scale);
}
ptr.set(PDataType.DECIMAL.toBytes(result));
return true;
}
/** {@inheritDoc} */
@Override
public boolean apply(@Nullable T1 t1, @Nullable T2 t2) {
lazyCompile();
if (expr != null) {
JexlContext ctx = new MapContext();
ctx.set(var1, t1);
ctx.set(var2, t2);
for (Map.Entry<String, Object> e : map.entrySet()) {
ctx.set(e.getKey(), e.getValue());
}
try {
Object obj = expr.evaluate(ctx);
if (obj instanceof Boolean) {
return (Boolean) obj;
}
} catch (Exception ex) {
throw F.wrap(ex);
}
}
return false;
}
@Override
public Object doCompileTimeEvaluation() {
Expression expr = getCompileTimeConstantExpression();
return expr instanceof INewExpression
? getName() // Enum constant field name
: expr.evaluate();
}
protected void initList(List<Expression> source, List target, FacesContext context) {
for (int i = 0, size = source.size(); i < size; i++) {
Expression value = source.get(i);
//noinspection unchecked
target.add((value != null) ? value.evaluate(context.getELContext()) : null);
}
}
public ValidationException[] apply(Message msg) {
try {
Object subject = testExpression.evaluate(msg);
boolean passed = getPredicate().evaluate(subject);
return passed ? passed() : failedWithValue(subject, testExpression.getLocation(msg));
} catch (Exception e) {
return failed(e);
}
}
@SuppressWarnings("unchecked")
public Comparable evaluate(Object[] parameters) {
for (Expression e : eList) {
if (!((Boolean) e.evaluate(parameters))) {
return Boolean.FALSE;
}
}
return Boolean.TRUE;
}
// Extract all quotes from the quote bundle which cause the given
// expression to equate to true. If there is no expression (string is null or
// empty) then extract all the quotes.
private List extractQuotesUsingRule(String filterExpression, EODQuoteBundle quoteBundle) {
// If there is no rule, then just return all quotes
if (filterExpression == null || filterExpression.length() == 0)
return extractAllQuotes(quoteBundle);
// First parse the expression
Expression expression = null;
try {
expression = Parser.parse(filterExpressionString);
} catch (ExpressionException e) {
// We should have already checked the string for errors before here
assert false;
}
// Add symbols to list when expression proves true
ArrayList quotes = new ArrayList();
Iterator iterator = quoteBundle.iterator();
TradingDate lastDate = quoteBundle.getLastDate();
try {
// Traverse all symbols on all dates
while (iterator.hasNext()) {
Quote quote = (Quote) iterator.next();
Symbol symbol = quote.getSymbol();
TradingDate date = quote.getDate();
int dateOffset = 0;
try {
dateOffset = quoteBundle.dateToOffset(date);
} catch (WeekendDateException e) {
assert false;
}
if (!singleDate || (lastDate.equals(quote.getDate()))) {
if (expression.evaluate(new Variables(), quoteBundle, symbol, dateOffset)
>= Expression.TRUE_LEVEL) quotes.add(quote);
}
}
return quotes;
} catch (EvaluationException e) {
// Tell user expression didnt evaluate properly
JOptionPane.showInternalMessageDialog(
DesktopManager.getDesktop(),
e.getReason() + ": " + expression.toString(),
Locale.getString("ERROR_EVALUATION_EQUATION"),
JOptionPane.ERROR_MESSAGE);
// delete erroneous expression
expression = null;
// If the expression didn't evaluate then just return all the quotes
return extractAllQuotes(quoteBundle);
}
}
private Boolean evaluateToBoolean(final Expression expr, final ExecutionContext ctx) {
final Object l = expr.evaluate(ctx);
if (l == null) return null;
if (!(l instanceof Boolean)) {
final Type t = ctx.getType(l);
throw new EvaluationException("Boolean expected but was " + t.getName(), expr, ctx);
}
final Boolean result = (Boolean) l;
return result;
}
private void evaluateAndAssertResult(
Expression expression, Object expectedResult, String context) {
context = context == null ? "" : context;
ImmutableBytesWritable ptr = new ImmutableBytesWritable();
assertTrue(expression.evaluate(null, ptr));
PDataType dataType = expression.getDataType();
SortOrder sortOrder = expression.getSortOrder();
Object result =
dataType.toObject(ptr.get(), ptr.getOffset(), ptr.getLength(), dataType, sortOrder);
assertEquals(context, expectedResult, result);
}
public Variable execute(
ArrayList Parameters, ArrayList ParentTable, Linker MyLinker, boolean function, boolean loop)
throws Exception {
try {
MyModel.incrementIterationCounter(getLine());
if (MyModel.getExceptionRaised() != null) throw (MyModel.getExceptionRaised());
HashMap MyTable = new HashMap();
ParentTable.add(MyTable);
if (!MyModel.getRunAllCode()) {
if (Statements.size() > 0)
while (Comparison.evaluate(ParentTable, MyLinker, function, loop).truthValue()) {
for (int i = 0; i < Statements.size(); i++) {
Statement TempStatement = (Statement) Statements.get(i);
TempStatement.execute(Parameters, ParentTable, MyLinker, function, true);
}
}
} else { // We must be attempting to run all code.
Comparison.evaluate(ParentTable, MyLinker, function, loop);
for (int i = 0; i < Statements.size(); i++) {
Statement TempStatement = (Statement) Statements.get(i);
TempStatement.execute(Parameters, ParentTable, MyLinker, function, loop);
}
}
ParentTable.remove(ParentTable.size() - 1);
} catch (Exception e) {
if (e instanceof ModelReturn) // Pop from the stack if we're here.
ParentTable.remove(ParentTable.size() - 1);
if (e instanceof ModelBreak) return (null);
if (!(e instanceof ModelError))
throw (new ModelError("Runtime error on line " + getLine() + " when running while loop"));
else throw (e);
}
return (null);
}
@Test
public void test_infix() throws Exception {
Expression exp = new InfixExpression("( ( a + b - c ) * d / e ) ^ 1 ^ 2 ^ 3 % 4 ^ 5");
assertEquals("((a + b - c) * d / e) ^ 1 ^ 2 ^ 3 % 4 ^ 5", exp.toString());
for (int i = 0; i < n; i++) {
int a = r.nextInt(), b = r.nextInt(), c = r.nextInt(), d = r.nextInt(), e = r.nextInt();
fillTable(new char[] {'a', 'b', 'c', 'd', 'e'}, new int[] {a, b, c, d, e});
exp.setVarTable(varTable);
int expected = (a + b - c) * d / e % (1 << 10);
assertEquals(expected, exp.evaluate());
}
}
private static boolean testExpression(LiteralExpression literal, double expected)
throws SQLException {
List<Expression> expressions = Lists.newArrayList((Expression) literal);
Expression sqrtFunction = new ExpFunction(expressions);
ImmutableBytesWritable ptr = new ImmutableBytesWritable();
boolean ret = sqrtFunction.evaluate(null, ptr);
if (ret) {
Double result =
(Double) sqrtFunction.getDataType().toObject(ptr, sqrtFunction.getSortOrder());
assertTrue(twoDoubleEquals(result.doubleValue(), expected));
}
return ret;
}
/**
* Does the feature in row of fci pass the conditions of this expression.
*
* @param fci
* @param row
* @return true if row contents passes evaluation
*/
public boolean evaluate(FeatureClassInfo fci, int row) {
boolean ret = true;
StringBuffer reasoning = null;
if (logger.isLoggable(Level.FINE)) {
reasoning = new StringBuffer();
}
if (exp != null) {
ret = exp.evaluate(fci, row, reasoning);
}
if (reasoning != null) {
reasoning.append("\n--------");
logger.fine(reasoning.toString());
}
return ret;
}
protected Value[] evaluateChildren(final ProcessingContext context, final int depth) {
final List<Expression> children = getChildren();
final Value[] childValues = new Value[children.size()];
for (int i = 0; i < children.size(); i++) {
final Expression child = children.get(i);
Value childValue;
if (child instanceof AbstractFunctionalExpression) {
childValue = ((AbstractFunctionalExpression) child).evaluate(context, depth + 1);
} else {
/* (This only happens if an extension implements Expression directly) */
childValue = child.evaluate(context);
}
childValues[i] = childValue;
}
return childValues;
}
private static void testExpression(
LiteralExpression array, LiteralExpression element, PhoenixArray expected)
throws SQLException {
List<Expression> expressions = Lists.newArrayList((Expression) element);
expressions.add(array);
Expression arrayPrependFunction = new ArrayPrependFunction(expressions);
ImmutableBytesWritable ptr = new ImmutableBytesWritable();
arrayPrependFunction.evaluate(null, ptr);
PhoenixArray result =
(PhoenixArray)
arrayPrependFunction
.getDataType()
.toObject(
ptr, expressions.get(1).getSortOrder(), array.getMaxLength(), array.getScale());
assertEquals(result, expected);
}
@Test
public void test_postfix() throws Exception {
Expression exp = new PostfixExpression("a b c d e + - * /");
assertEquals("a b c d e + - * /", exp.toString());
for (int i = 0; i < n; i++) {
int a = r.nextInt(), b = r.nextInt(), c = r.nextInt(), d = r.nextInt(), e = r.nextInt();
// System.out.println("a: "+a);
// System.out.println("b: "+b);
// System.out.println("c: "+c);
// System.out.println("d: "+a);
// System.out.println("e: "+b);
fillTable(new char[] {'a', 'b', 'c', 'd', 'e'}, new int[] {a, b, c, d, e});
exp.setVarTable(varTable);
int expected = a / (b * (c - (d + e)));
assertEquals(expected, exp.evaluate());
}
}
public String evaluate(String expString) {
try {
ArrayList<Token> tokens = _tokenizer.tokenize(expString);
LinkedList<String> lst = new LinkedList<>();
tokens
.stream()
.forEach(
(t) -> {
lst.add((new Pair<>(t.Literal(), t.Token())).toString());
});
Expression exp = _parser.parse(tokens);
ArrayList<Integer> lst2 = exp.evaluate();
return lst.toString() + "\n" + lst2.toString();
} catch (Tokenizer.TokenizerException exception) {
return "String can't be parsed.";
}
}
@Test
public void testEvalConst() throws Exception {
Expression expression = Expression.of("92");
int actual = expression.evaluate();
assertEquals(92, actual);
}
@Test
public void testEvaluateInEnvironment() throws Exception {
Map<String, Integer> environment = Collections.singletonMap("x", 92);
Expression expression = Expression.of("x");
assertEquals(92, expression.evaluate(environment));
}
@Test
public void testComplicatedExpression() throws Exception {
Expression expression = Expression.of("((2)+(2 + 2))");
int actual = expression.evaluate();
assertEquals(6, actual);
}
@Test
public void testSumWithParenthesis() throws Exception {
Expression expression = Expression.of("2+(2 + 2)");
int actual = expression.evaluate();
assertEquals(6, actual);
}
@Test
public void testSpacedExpression() throws Exception {
Expression expression = Expression.of("(2 + 2)");
int actual = expression.evaluate();
assertEquals(4, actual);
}
@Test
public void testScopeInteger() throws Exception {
Expression expression = Expression.of("(42)");
int actual = expression.evaluate();
assertEquals(42, actual);
}
@Test
public void nullConstant() throws EvaluationException {
Expression e = new ConstantExpression(null);
assertNull(e.evaluate(topLevel));
}
