use of org.datanucleus.query.compiler.QueryCompilation in project tests by datanucleus.
the class JPQLCompilerTest method testFromInExpression.
/**
* Tests for from clause with an "IN(...) alias" expression.
*/
public void testFromInExpression() {
JavaQueryCompiler compiler = null;
QueryCompilation compilation = null;
try {
compiler = new JPQLCompiler(nucCtx, nucCtx.getClassLoaderResolver(null), Department.class.getName() + " d, IN(d.projects) n", null, null, null, null, null, null, null, null, null, null);
compilation = compiler.compile(new HashMap(), null);
} catch (NucleusException ne) {
NucleusLogger.QUERY.error("Exception during compile", ne);
fail("compilation of filter with valid field threw exception : " + ne.getMessage());
}
SymbolTable symtbl = compilation.getSymbolTable();
Expression[] exprs = compilation.getExprFrom();
assertEquals("Number of from expressions is incorrect", 2, exprs.length);
// Candidate clause
assertTrue("FROM candidate clause is of wrong type " + exprs[0].getClass().getName(), exprs[0] instanceof ClassExpression);
ClassExpression clsExpr0 = (ClassExpression) exprs[0];
assertEquals("FROM candidate clause alias is wrong", "d", clsExpr0.getAlias());
Symbol clsSym0 = symtbl.getSymbol(clsExpr0.getAlias());
assertEquals("FROM candidate clause class is wrong", Department.class, clsSym0.getValueType());
assertEquals("FROM candidate clause has incorrect left()", null, clsExpr0.getLeft());
assertEquals("FROM candidate clause has incorrect right()", null, clsExpr0.getRight());
// Candidate+IN clause
assertTrue("FROM candidate+IN clause is of wrong type " + exprs[1].getClass().getName(), exprs[1] instanceof ClassExpression);
ClassExpression clsExpr1 = (ClassExpression) exprs[1];
assertEquals("FROM candidate+IN clause alias is wrong", "d", clsExpr1.getAlias());
Symbol clsSym1 = symtbl.getSymbol(clsExpr1.getAlias());
assertEquals("FROM candidate+IN clause class is wrong", Department.class, clsSym1.getValueType());
assertEquals("FROM candidate+IN clause has incorrect left()", null, clsExpr1.getLeft());
assertTrue("FROM candidate+IN clause has incorrect right() - should be instanceof JoinExpression", clsExpr1.getRight() instanceof JoinExpression);
JoinExpression joinExpr1 = (JoinExpression) clsExpr1.getRight();
assertEquals("FROM candidate+IN clause join expression has incorrect alias", "n", joinExpr1.getAlias());
assertEquals("FROM candidate+IN clause join expression has incorrect join type", JoinType.JOIN_INNER, joinExpr1.getType());
PrimaryExpression joinPrimExpr1 = (PrimaryExpression) joinExpr1.getJoinedExpression();
assertEquals("FROM candidate+IN clause join primary expression is incorrect", "d.projects", joinPrimExpr1.getId());
}
use of org.datanucleus.query.compiler.QueryCompilation in project tests by datanucleus.
the class JPQLCompilerTest method testFilterComparisonWithAnd.
/**
* Tests for simple field-literal comparison in filter and AND of another comparison.
*/
public void testFilterComparisonWithAnd() {
JavaQueryCompiler compiler = null;
QueryCompilation compilation = null;
try {
compiler = new JPQLCompiler(nucCtx, nucCtx.getClassLoaderResolver(null), null, Project.class, null, "budget = 2 AND 'Sales' = name", null, null, null, null, null, null, null);
compilation = compiler.compile(new HashMap(), null);
} catch (NucleusException ne) {
NucleusLogger.QUERY.error("Exception during compile", 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_AND, dyExpr.getOperator());
assertTrue("Compiled left expression should be PrimaryExpression but isnt", dyExpr1.getLeft() instanceof PrimaryExpression);
assertTrue("Compiled right expression should be Literal but isnt", dyExpr1.getRight() instanceof Literal);
assertEquals("Operator between left (left and right) is incorrect", Expression.OP_EQ, dyExpr1.getOperator());
PrimaryExpression leftExpr1 = (PrimaryExpression) dyExpr1.getLeft();
assertEquals("Compiled left expression has incorrect number of tuples", 1, leftExpr1.getTuples().size());
assertEquals("Compiled left expression 'id' is incorrect", "budget", leftExpr1.getId());
Literal rightExpr1 = (Literal) dyExpr1.getRight();
assertTrue("Compiled right expression literal is of incorrect type", rightExpr1.getLiteral() instanceof Long);
assertEquals("Compiled right expression literal has incorrect value", 2, ((Long) rightExpr1.getLiteral()).longValue());
assertTrue("Compiled right expression should be PrimaryExpression but isnt", dyExpr2.getRight() instanceof PrimaryExpression);
assertTrue("Compiled left expression should be Literal but isnt", dyExpr2.getLeft() instanceof Literal);
assertEquals("Operator between right (left and right) is incorrect", Expression.OP_EQ, dyExpr2.getOperator());
PrimaryExpression rightExpr2 = (PrimaryExpression) dyExpr2.getRight();
assertEquals("Compiled left expression has incorrect number of tuples", 1, rightExpr2.getTuples().size());
assertEquals("Compiled left expression 'id' is incorrect", "name", rightExpr2.getId());
Literal leftExpr2 = (Literal) dyExpr2.getLeft();
assertTrue("Compiled right expression literal is of incorrect type", leftExpr2.getLiteral() instanceof String);
assertEquals("Compiled right expression literal has incorrect value", "Sales", ((String) leftExpr2.getLiteral()));
}
use of org.datanucleus.query.compiler.QueryCompilation in project tests by datanucleus.
the class JDOQLCompilerTest method testFilterUnaryMinus.
/**
* Test for unary minus.
*/
public void testFilterUnaryMinus() {
JavaQueryCompiler compiler = null;
QueryCompilation compilation = null;
try {
compiler = new JDOQLCompiler(nucCtx, nucCtx.getClassLoaderResolver(null), null, Inventory.class, null, "1 > -1", null, null, null, null, null, null, null, null);
compilation = compiler.compile(new HashMap(), null);
} catch (NucleusException ne) {
NucleusLogger.QUERY.error(">> Exception thrown when compiling filter unary minus", ne);
fail("compilation of filter with valid field threw exception : " + ne.getMessage());
}
// TODO Check the content of the compilation when it is compiled
NucleusLogger.QUERY.info(">> compilation=" + compilation);
}
use of org.datanucleus.query.compiler.QueryCompilation in project tests by datanucleus.
the class JDOQLCompilerTest method testExpressionSerializable.
/**
* Test for serialisability of Expressions.
*/
public void testExpressionSerializable() {
// 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());
try {
try {
// Serialise the Expression
FileOutputStream fileStream = new FileOutputStream("expr.ser");
ObjectOutputStream os = new ObjectOutputStream(fileStream);
os.writeObject(expr);
os.close();
} catch (Exception e) {
NucleusLogger.GENERAL.error(">> Exception in serialise", e);
fail("Failed to serialise " + StringUtils.toJVMIDString(expr));
}
try {
// Deserialise the Expression
FileInputStream fileInputStream = new FileInputStream("expr.ser");
ObjectInputStream oInputStream = new ObjectInputStream(fileInputStream);
Object obj = oInputStream.readObject();
if (obj instanceof Expression) {
Expression expr1 = (Expression) obj;
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 Expression");
}
oInputStream.close();
} catch (Exception e) {
NucleusLogger.GENERAL.error(">> Exception in deserialise", e);
fail("Failed to deserialise " + StringUtils.toJVMIDString(expr));
}
} finally {
// Delete the file
File file = new File("expr.ser");
if (file.exists()) {
file.delete();
}
}
}
use of org.datanucleus.query.compiler.QueryCompilation 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());
}
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