Examples with JDOQLCompiler org.datanucleus.query.compiler.JDOQLCompiler used on opensource projects

Example 16 with JDOQLCompiler

use of org.datanucleus.query.compiler.JDOQLCompiler in project datanucleus-core by datanucleus.

the class AbstractJDOQLQuery method compileSubqueries.

/**
 * Recursively compile the subqueries
 * @param subqueryMap The subquery definition map
 * @param parentCompilation Parent compilation
 * @param parentCompiler The parent compiler
 * @param parameterValues The parameters map
 */
protected void compileSubqueries(Map<String, SubqueryDefinition> subqueryMap, QueryCompilation parentCompilation, JavaQueryCompiler parentCompiler, Map parameterValues) {
    long startTime = System.currentTimeMillis();
    Iterator<Map.Entry<String, SubqueryDefinition>> iter = subqueryMap.entrySet().iterator();
    while (iter.hasNext()) {
        Map.Entry<String, SubqueryDefinition> entry = iter.next();
        SubqueryDefinition subqueryDefinition = entry.getValue();
        Query subquery = subqueryDefinition.getQuery();
        if (NucleusLogger.QUERY.isDebugEnabled()) {
            startTime = System.currentTimeMillis();
            NucleusLogger.QUERY.debug(Localiser.msg("021044", getLanguage(), ((AbstractJDOQLQuery) subquery).getSingleStringQuery()));
        }
        JDOQLCompiler subCompiler = new JDOQLCompiler(ec.getNucleusContext(), ec.getClassLoaderResolver(), subquery.from, subquery.candidateClass, null, subquery.filter, getParsedImports(), subquery.ordering, subquery.result, subquery.grouping, subquery.having, subquery.explicitParameters, null, null);
        if (getBooleanExtensionProperty(EXTENSION_JDOQL_STRICT, false)) {
            subCompiler.setOption(EXTENSION_JDOQL_STRICT, "true");
        }
        boolean allowAllSyntax = ec.getNucleusContext().getConfiguration().getBooleanProperty(PropertyNames.PROPERTY_QUERY_JDOQL_ALLOWALL);
        if (ec.getBooleanProperty(PropertyNames.PROPERTY_QUERY_JDOQL_ALLOWALL) != null) {
            allowAllSyntax = ec.getBooleanProperty(PropertyNames.PROPERTY_QUERY_JDOQL_ALLOWALL);
        }
        subCompiler.setAllowAll(allowAllSyntax);
        subCompiler.setLinkToParentQuery(parentCompiler, subqueryDefinition.getParameterMap());
        QueryCompilation subqueryCompilation = subCompiler.compile(parameterValues, null);
        if (QueryUtils.queryReturnsSingleRow(subquery)) {
            subqueryCompilation.setReturnsSingleRow();
        }
        parentCompilation.addSubqueryCompilation(entry.getKey(), subqueryCompilation);
        if (NucleusLogger.QUERY.isDebugEnabled()) {
            NucleusLogger.QUERY.debug(Localiser.msg("021045", getLanguage(), "" + (System.currentTimeMillis() - startTime)));
        }
        if (subquery.subqueries != null) {
            // Recurse to nested subqueries
            compileSubqueries(subquery.subqueries, subqueryCompilation, subCompiler, parameterValues);
        }
    }
}

Example 17 with JDOQLCompiler

use of org.datanucleus.query.compiler.JDOQLCompiler 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);
}

Example 18 with JDOQLCompiler

use of org.datanucleus.query.compiler.JDOQLCompiler in project tests by datanucleus.

the class JDOQLCompilerTest method testFilterExplicitParameterAsImplicit.

/**
 * Test for subquery.
 * TODO Update this to reflect a valid subquery JDOQL.
 */
/*public void testSubquery()
    {
        JavaQueryCompiler compiler = null;
        QueryCompilation compilation = null;
        try
        {
            compiler = new JDOQLCompiler(mmgr, nucCtx.getClassLoaderResolver(null), 
                null, Employee.class, null,
                "salary > (SELECT avg(salary) FROM " + Employee.class.getName() + " e)", 
                null, null, null, null, null, null, null);
            compilation = compiler.compile(new HashMap());
        }
        catch (NucleusException ne)
        {
            NucleusLogger.QUERY.error(">> Exception thrown when compiling subquery", 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);
    }*/
/**
 * Test for detection of invalid param specification where the user defines explicit params
 * and puts an implicit param in the filter. Should cause exception
 */
public void testFilterExplicitParameterAsImplicit() {
    JavaQueryCompiler compiler = 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);
        compiler.compile(null, null);
        fail("Compiled query without exception even though it had explicit params defined and" + " had an implicit param in the filter! Should have thrown exception");
    } catch (NucleusUserException ne) {
    // Expected
    }
}

Example 19 with JDOQLCompiler

use of org.datanucleus.query.compiler.JDOQLCompiler 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();
        }
    }
}

Example 20 with JDOQLCompiler

use of org.datanucleus.query.compiler.JDOQLCompiler 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());
}