use of org.datanucleus.query.expression.DyadicExpression in project tests by datanucleus.
the class JDOQLCompilerTest method testFilterCollectionContainsVariablePlusExtraJoin.
/**
* Tests for collection.contains(element) && elem.other.field == val.
*/
public void testFilterCollectionContainsVariablePlusExtraJoin() {
JavaQueryCompiler compiler = null;
QueryCompilation compilation = null;
try {
compiler = new JDOQLCompiler(nucCtx, nucCtx.getClassLoaderResolver(null), null, Inventory.class, null, "products.contains(element) && element.guarantee.numberOfYears < 3", null, null, null, null, null, null, Product.class.getName() + " element", null);
compilation = compiler.compile(new HashMap(), null);
} catch (NucleusException ne) {
NucleusLogger.QUERY.error("Exception thrown during compilation", ne);
fail("compilation of filter with valid field threw exception : " + ne.getMessage());
}
Expression expr = compilation.getExprFilter();
assertTrue("Compiled expression should have been DyadicExpression but wasnt", expr instanceof DyadicExpression);
DyadicExpression dyExpr = (DyadicExpression) expr;
LOG.info(">> expr=" + dyExpr);
// product.contains(element)
assertTrue("Left expression should have been InvokeExpression but wasnt", dyExpr.getLeft() instanceof InvokeExpression);
InvokeExpression leftExpr = (InvokeExpression) dyExpr.getLeft();
assertTrue("InvokeExpression should have been invoked on PrimaryExpression but wasnt", leftExpr.getLeft() instanceof PrimaryExpression);
assertEquals("Left expression : Name of field upon which we invoke the method was wrong", "products", ((PrimaryExpression) leftExpr.getLeft()).getId());
assertEquals("Left expression : Name of invoked method was wrong", "contains", leftExpr.getOperation());
assertEquals("Left expression : Number of parameters to contains() is wrong", 1, leftExpr.getArguments().size());
Object param1 = leftExpr.getArguments().get(0);
assertTrue("Left expression : Parameter1 to contains() is of wrong type", param1 instanceof VariableExpression);
VariableExpression vrExpr = (VariableExpression) param1;
assertEquals("Left expression : Name of variable to contains() is incorrect", "element", vrExpr.getId());
// element.guarantee.numberOfYears < 3
assertTrue("Right expression should have been DyadicExpression but wasnt", dyExpr.getRight() instanceof DyadicExpression);
DyadicExpression rightExpr = (DyadicExpression) dyExpr.getRight();
assertTrue("Right expression (left) should have been PrimaryExpression but wasnt", rightExpr.getLeft() instanceof PrimaryExpression);
PrimaryExpression rightExprLeft = (PrimaryExpression) rightExpr.getLeft();
assertTrue("Right expression (left).left is of incorrect type", rightExprLeft.getLeft() instanceof VariableExpression);
VariableExpression rightExprLeftLeft = (VariableExpression) rightExprLeft.getLeft();
assertTrue("Right expression (left).left is of incorrect type", rightExprLeft.getLeft() instanceof VariableExpression);
assertEquals("Right expression (left) part1 is incorrect", "element", rightExprLeftLeft.getId());
assertEquals("Right expression (left) has incorrect number of tuples", 2, rightExprLeft.getTuples().size());
assertEquals("Right expression (left) part2 is incorrect", "guarantee", rightExprLeft.getTuples().get(0));
assertEquals("Right expression (left) part2 is incorrect", "numberOfYears", rightExprLeft.getTuples().get(1));
assertEquals("Right expression : Operator between left and right is incorrect", Expression.OP_LT, rightExpr.getOperator());
assertTrue("Right expression (right) should have been Literal but wasnt", rightExpr.getRight() instanceof Literal);
Literal rightExprRight = (Literal) rightExpr.getRight();
assertEquals("Right expression (right) literal has incorrect value", 3, ((Long) rightExprRight.getLiteral()).longValue());
// Check symbols
SymbolTable symbols = compilation.getSymbolTable();
assertTrue("Symbol table doesnt have entry for 'element'", symbols.hasSymbol("element"));
assertTrue("Symbol table doesnt have entry for 'this'", symbols.hasSymbol("this"));
Symbol sy1 = symbols.getSymbol("element");
assertEquals("Type of symbol for 'element' is wrong", Product.class, sy1.getValueType());
Symbol sy2 = symbols.getSymbol("this");
assertEquals("Type of symbol for 'this' is wrong", Inventory.class, sy2.getValueType());
}
use of org.datanucleus.query.expression.DyadicExpression in project tests by datanucleus.
the class JDOQLCompilerTest method testFilterExplicitParameter.
/**
* Test for use of an explicit parameter in the filter.
*/
public void testFilterExplicitParameter() {
// Test use of implicit variable in filter
JavaQueryCompiler compiler = null;
QueryCompilation compilation = null;
try {
compiler = new JDOQLCompiler(nucCtx, nucCtx.getClassLoaderResolver(null), null, Product.class, null, "name == param1", null, null, null, null, null, "java.lang.String param1", null, null);
compilation = compiler.compile(null, null);
} catch (NucleusUserException ne) {
// TODO Debatable if this should throw a JDOUserException since the "notaField" is not bound, nor typed
NucleusLogger.QUERY.error("Exception thrown during compilation", ne);
fail("compilation of filter with valid field threw exception : " + ne.getMessage());
}
Expression expr = compilation.getExprFilter();
assertTrue("Compiled expression should have been DyadicExpression but wasnt", expr instanceof DyadicExpression);
DyadicExpression dyExpr = (DyadicExpression) expr;
assertTrue("Compiled left expression should be PrimaryExpression but isnt", dyExpr.getLeft() instanceof PrimaryExpression);
assertTrue("Compiled right expression should be ParameterExpression but isnt", dyExpr.getRight() instanceof ParameterExpression);
PrimaryExpression left = (PrimaryExpression) dyExpr.getLeft();
assertEquals("Primary expression name is wrong", left.getId(), "name");
ParameterExpression right = (ParameterExpression) dyExpr.getRight();
assertEquals("ParameterExpression has wrong value", "param1", right.getId());
}
use of org.datanucleus.query.expression.DyadicExpression in project tests by datanucleus.
the class JDOQLCompilerTest method testFilterComparisonWithAndOr.
/**
* Tests for filter with field-literal comparison AND another comparison, and ORed with
* another set of expressions.
*/
public void testFilterComparisonWithAndOr() {
JavaQueryCompiler compiler = null;
QueryCompilation compilation = null;
try {
compiler = new JDOQLCompiler(nucCtx, nucCtx.getClassLoaderResolver(null), null, Product.class, null, "(statusId == 2 && 100.0 > price) || (price >= 50 && price <= 95)", null, null, null, null, null, null, null, null);
compilation = compiler.compile(null, null);
} catch (NucleusException ne) {
NucleusLogger.QUERY.error("Exception thrown during compilation", ne);
fail("compilation of filter with valid field threw exception : " + ne.getMessage());
}
Expression expr = compilation.getExprFilter();
assertTrue("Compiled expression should have been DyadicExpression but wasnt", expr instanceof DyadicExpression);
DyadicExpression dyExpr = (DyadicExpression) expr;
assertTrue("Compiled left expression should be DyadicExpression but isnt", dyExpr.getLeft() instanceof DyadicExpression);
assertTrue("Compiled right expression should be DyadicExpression but isnt", dyExpr.getRight() instanceof DyadicExpression);
DyadicExpression dyExpr1 = (DyadicExpression) dyExpr.getLeft();
DyadicExpression dyExpr2 = (DyadicExpression) dyExpr.getRight();
assertEquals("Operator between left and right is incorrect", Expression.OP_OR, dyExpr.getOperator());
assertTrue("Compiled left(left) expression should be DyadicExpression but isnt", dyExpr1.getLeft() instanceof DyadicExpression);
assertTrue("Compiled left(right) expression should be DyadicExpression but isnt", dyExpr1.getRight() instanceof DyadicExpression);
DyadicExpression dyExpr1a = (DyadicExpression) dyExpr1.getLeft();
DyadicExpression dyExpr1b = (DyadicExpression) dyExpr1.getRight();
// 1a : statusId == 2
assertTrue("Compiled left expression should be PrimaryExpression but isnt", dyExpr1a.getLeft() instanceof PrimaryExpression);
assertTrue("Compiled right expression should be Literal but isnt", dyExpr1a.getRight() instanceof Literal);
assertEquals("Operator between left (left and right) is incorrect", Expression.OP_EQ, dyExpr1a.getOperator());
PrimaryExpression leftExpr1a = (PrimaryExpression) dyExpr1a.getLeft();
assertEquals("Compiled left expression has incorrect number of tuples", 1, leftExpr1a.getTuples().size());
assertEquals("Compiled left expression 'id' is incorrect", "statusId", leftExpr1a.getId());
Literal rightExpr1a = (Literal) dyExpr1a.getRight();
assertTrue("Compiled right expression literal is of incorrect type", rightExpr1a.getLiteral() instanceof Long);
assertEquals("Compiled right expression literal has incorrect value", 2, ((Long) rightExpr1a.getLiteral()).longValue());
// 1b : 100.0 > price
assertTrue("Compiled right expression should be PrimaryExpression but isnt", dyExpr1b.getRight() instanceof PrimaryExpression);
assertTrue("Compiled left expression should be Literal but isnt", dyExpr1b.getLeft() instanceof Literal);
assertEquals("Operator between right (left and right) is incorrect", Expression.OP_GT, dyExpr1b.getOperator());
PrimaryExpression rightExpr1b = (PrimaryExpression) dyExpr1b.getRight();
assertEquals("Compiled left expression has incorrect number of tuples", 1, rightExpr1b.getTuples().size());
assertEquals("Compiled left expression 'id' is incorrect", "price", rightExpr1b.getId());
Literal leftExpr1b = (Literal) dyExpr1b.getLeft();
// TODO Why BigDecimal and not Double??
assertTrue("Compiled right expression literal is of incorrect type", leftExpr1b.getLiteral() instanceof BigDecimal);
assertEquals("Compiled right expression literal has incorrect value", 100.0, ((BigDecimal) leftExpr1b.getLiteral()).longValue(), 0.1);
assertTrue("Compiled right(left) expression should be DyadicExpression but isnt", dyExpr2.getLeft() instanceof DyadicExpression);
assertTrue("Compiled right(right) expression should be DyadicExpression but isnt", dyExpr2.getRight() instanceof DyadicExpression);
DyadicExpression dyExpr2a = (DyadicExpression) dyExpr2.getLeft();
DyadicExpression dyExpr2b = (DyadicExpression) dyExpr2.getRight();
// 2a : price >= 50
assertTrue("Compiled left expression should be PrimaryExpression but isnt", dyExpr2a.getLeft() instanceof PrimaryExpression);
assertTrue("Compiled right expression should be Literal but isnt", dyExpr2a.getRight() instanceof Literal);
assertEquals("Operator between right (left and right) is incorrect", Expression.OP_GTEQ, dyExpr2a.getOperator());
PrimaryExpression leftExpr2a = (PrimaryExpression) dyExpr2a.getLeft();
assertEquals("Compiled left expression has incorrect number of tuples", 1, leftExpr2a.getTuples().size());
assertEquals("Compiled left expression 'id' is incorrect", "price", leftExpr2a.getId());
Literal rightExpr2a = (Literal) dyExpr2a.getRight();
assertTrue("Compiled right expression literal is of incorrect type " + rightExpr2a.getLiteral().getClass().getName(), rightExpr2a.getLiteral() instanceof Long);
assertEquals("Compiled right expression literal has incorrect value", 50.0, ((Long) rightExpr2a.getLiteral()).longValue(), 0.1);
// 2b : price >= 50
assertTrue("Compiled left expression should be PrimaryExpression but isnt", dyExpr2b.getLeft() instanceof PrimaryExpression);
assertTrue("Compiled right expression should be Literal but isnt", dyExpr2b.getRight() instanceof Literal);
assertEquals("Operator between right (left and right) is incorrect", Expression.OP_LTEQ, dyExpr2b.getOperator());
PrimaryExpression leftExpr2b = (PrimaryExpression) dyExpr2b.getLeft();
assertEquals("Compiled left expression has incorrect number of tuples", 1, leftExpr2b.getTuples().size());
assertEquals("Compiled left expression 'id' is incorrect", "price", leftExpr2b.getId());
Literal rightExpr2b = (Literal) dyExpr2b.getRight();
assertTrue("Compiled right expression literal is of incorrect type", rightExpr2b.getLiteral() instanceof Long);
assertEquals("Compiled right expression literal has incorrect value", 95.0, ((Long) rightExpr2b.getLiteral()).longValue(), 0.1);
}
use of org.datanucleus.query.expression.DyadicExpression in project tests by datanucleus.
the class JDOQLCompilerTest method testFilterWithCast.
/**
* Tests for "(cast)expr" in filter.
*/
public void testFilterWithCast() {
JavaQueryCompiler compiler = null;
QueryCompilation compilation = null;
try {
compiler = new JDOQLCompiler(nucCtx, nucCtx.getClassLoaderResolver(null), null, Product.class, null, "((Book)this).author == 'Tolkien'", null, null, null, null, null, null, null, null);
compilation = compiler.compile(new HashMap(), null);
} catch (NucleusException ne) {
NucleusLogger.QUERY.error("Exception thrown during compilation", ne);
fail("compilation of filter with valid field threw exception : " + ne.getMessage());
}
Expression expr = compilation.getExprFilter();
assertTrue("Filter should be DyadicExpression but is " + expr, expr instanceof DyadicExpression);
DyadicExpression dyExpr = (DyadicExpression) expr;
Expression leftExpr = dyExpr.getLeft();
assertTrue("Left side should be PrimaryExpression but is " + leftExpr, leftExpr instanceof PrimaryExpression);
PrimaryExpression primExpr = (PrimaryExpression) leftExpr;
assertTrue("PrimaryExpression should have left of CastExpression but is " + primExpr.getLeft(), primExpr.getLeft() instanceof DyadicExpression);
DyadicExpression castDyExpr = (DyadicExpression) primExpr.getLeft();
assertTrue("Cast DyadicExpression left should be PrimaryExpression", castDyExpr.getLeft() instanceof PrimaryExpression);
assertTrue("Cast DyadicExpression right should be PrimaryExpression", castDyExpr.getRight() instanceof Literal);
assertEquals("Cast class is incorrect", "Book", ((Literal) castDyExpr.getRight()).getLiteral());
PrimaryExpression castPrimExpr = (PrimaryExpression) castDyExpr.getLeft();
assertEquals("Expression being cast is incorrect", "this", castPrimExpr.getId());
assertEquals("PrimaryExpression off cast is incorrect", "author", primExpr.getId());
Expression rightExpr = dyExpr.getRight();
assertTrue("Right side should be Literal but is " + rightExpr, rightExpr instanceof Literal);
assertEquals("Right side literal value is incorrect", "Tolkien", ((Literal) rightExpr).getLiteral());
}
use of org.datanucleus.query.expression.DyadicExpression in project tests by datanucleus.
the class JDOQLCompilerTest method testQueryCompilationSerializable.
/**
* Test for serialisability of QueryCompilation.
*/
public void testQueryCompilationSerializable() {
// Test use of implicit variable in filter
JavaQueryCompiler compiler = null;
QueryCompilation compilation = null;
try {
compiler = new JDOQLCompiler(nucCtx, nucCtx.getClassLoaderResolver(null), null, Product.class, null, "name == param1", null, null, null, null, null, "java.lang.String param1", null, null);
compilation = compiler.compile(null, null);
} catch (NucleusUserException ne) {
// TODO Debatable if this should throw a JDOUserException since the "notaField" is not bound, nor typed
NucleusLogger.QUERY.error("Exception thrown during compilation", ne);
fail("compilation of filter with valid field threw exception : " + ne.getMessage());
}
try {
try {
// Serialise the Expression
FileOutputStream fileStream = new FileOutputStream("compilation.ser");
ObjectOutputStream os = new ObjectOutputStream(fileStream);
os.writeObject(compilation);
os.close();
} catch (Exception e) {
NucleusLogger.GENERAL.error(">> Exception in serialise", e);
fail("Failed to serialise " + StringUtils.toJVMIDString(compilation));
}
try {
// Deserialise the Expression
FileInputStream fileInputStream = new FileInputStream("compilation.ser");
ObjectInputStream oInputStream = new ObjectInputStream(fileInputStream);
Object obj = oInputStream.readObject();
if (obj instanceof QueryCompilation) {
QueryCompilation compilation1 = (QueryCompilation) obj;
Expression expr1 = compilation1.getExprFilter();
assertTrue("Compiled expression should have been DyadicExpression but wasnt", expr1 instanceof DyadicExpression);
DyadicExpression dyExpr1 = (DyadicExpression) expr1;
assertTrue("Compiled left expression should be PrimaryExpression but isnt", dyExpr1.getLeft() instanceof PrimaryExpression);
assertTrue("Compiled right expression should be ParameterExpression but isnt", dyExpr1.getRight() instanceof ParameterExpression);
PrimaryExpression left1 = (PrimaryExpression) dyExpr1.getLeft();
assertEquals("Primary expression name is wrong", left1.getId(), "name");
ParameterExpression right1 = (ParameterExpression) dyExpr1.getRight();
assertEquals("ParameterExpression has wrong value", "param1", right1.getId());
} else {
fail("Deserialised object is " + obj.getClass().getName() + " not QueryCompilation");
}
oInputStream.close();
} catch (Exception e) {
NucleusLogger.GENERAL.error(">> Exception in deserialise", e);
fail("Failed to deserialise " + StringUtils.toJVMIDString(compilation));
}
} finally {
// Delete the file
File file = new File("compilation.ser");
if (file.exists()) {
file.delete();
}
}
}
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