Examples with ThisValueAccessor org.mvel2.optimizers.impl.refl.nodes.ThisValueAccessor used on opensource projects

Example 1 with ThisValueAccessor

use of org.mvel2.optimizers.impl.refl.nodes.ThisValueAccessor in project drools by kiegroup.

the class ConditionAnalyzer method analyzeAccessorInvocation.

private Invocation analyzeAccessorInvocation(AccessorNode accessorNode, ASTNode containingNode, Invocation formerInvocation, Class<?> variableType) {
    if (accessorNode instanceof GetterAccessor) {
        return new MethodInvocation(((GetterAccessor) accessorNode).getMethod(), variableType == null ? conditionClass : variableType.getName());
    }
    if (accessorNode instanceof MethodAccessor) {
        MethodAccessor methodAccessor = (MethodAccessor) accessorNode;
        Method method = methodAccessor.getMethod();
        MethodInvocation invocation = new MethodInvocation(method);
        boolean isVarArgs = method.isVarArgs();
        readInvocationParams(invocation, methodAccessor.getParms(), methodAccessor.getParameterTypes(), isVarArgs);
        return invocation;
    }
    if (accessorNode instanceof ConstructorAccessor) {
        ConstructorAccessor constructorAccessor = (ConstructorAccessor) accessorNode;
        Constructor constructor = constructorAccessor.getConstructor();
        ConstructorInvocation invocation = new ConstructorInvocation(constructor);
        readInvocationParams(invocation, constructorAccessor.getParameters(), constructorAccessor.getParameterTypes(), constructor.isVarArgs());
        return invocation;
    }
    if (accessorNode instanceof ArrayAccessor) {
        ArrayAccessor arrayAccessor = (ArrayAccessor) accessorNode;
        return new ArrayAccessInvocation(formerInvocation != null ? formerInvocation.getReturnType() : Object[].class, new FixedExpression(int.class, arrayAccessor.getIndex()));
    }
    if (accessorNode instanceof ArrayAccessorNest) {
        ArrayAccessorNest arrayAccessorNest = (ArrayAccessorNest) accessorNode;
        ExecutableAccessor index = (ExecutableAccessor) arrayAccessorNest.getIndex();
        return new ArrayAccessInvocation(formerInvocation != null ? formerInvocation.getReturnType() : Object[].class, analyzeNode(index.getNode()));
    }
    if (accessorNode instanceof ArrayLength) {
        return new ArrayLengthInvocation();
    }
    if (accessorNode instanceof ListAccessor) {
        Class<?> listType = getListType(formerInvocation);
        ListAccessor listAccessor = (ListAccessor) accessorNode;
        return new ListAccessInvocation(listType, new FixedExpression(int.class, listAccessor.getIndex()));
    }
    if (accessorNode instanceof ListAccessorNest) {
        Class<?> listType = getListType(formerInvocation);
        ListAccessorNest listAccessorNest = (ListAccessorNest) accessorNode;
        ExecutableAccessor index = (ExecutableAccessor) listAccessorNest.getIndex();
        return new ListAccessInvocation(listType, analyzeNode(index.getNode()));
    }
    if (accessorNode instanceof MapAccessor) {
        MapAccessor mapAccessor = (MapAccessor) accessorNode;
        return new MapAccessInvocation(Object.class, Object.class, new FixedExpression(Object.class, mapAccessor.getProperty()));
    }
    if (accessorNode instanceof MapAccessorNest) {
        Class<?> keyType = Object.class;
        Class<?> valueType = Object.class;
        Type[] generics = getGenerics(formerInvocation);
        if (generics != null && generics.length == 2 && generics[0] instanceof Class) {
            keyType = (Class<?>) generics[0];
            if (generics[1] instanceof Class)
                valueType = (Class<?>) generics[1];
        }
        MapAccessorNest mapAccessor = (MapAccessorNest) accessorNode;
        ExecutableStatement statement = mapAccessor.getProperty();
        if (statement instanceof ExecutableLiteral) {
            return new MapAccessInvocation(keyType, valueType, new FixedExpression(keyType, ((ExecutableLiteral) statement).getLiteral()));
        } else {
            return new MapAccessInvocation(keyType, valueType, analyzeNode(((ExecutableAccessor) statement).getNode()));
        }
    }
    if (accessorNode instanceof FieldAccessor) {
        return new FieldAccessInvocation(((FieldAccessor) accessorNode).getField());
    }
    if (accessorNode instanceof StaticVarAccessor) {
        Field field = ((StaticVarAccessor) accessorNode).getField();
        return new FieldAccessInvocation(field);
    }
    if (accessorNode instanceof ThisValueAccessor) {
        return new ThisInvocation(accessorNode.getNextNode() == null ? containingNode.getEgressType() : Object.class);
    }
    throw new RuntimeException("Unknown AccessorNode type: " + accessorNode.getClass().getName());
}

Example 2 with ThisValueAccessor

use of org.mvel2.optimizers.impl.refl.nodes.ThisValueAccessor in project drools by kiegroup.

the class ConditionAnalyzer method analyzeAccessorInvocation.

private Invocation analyzeAccessorInvocation(AccessorNode accessorNode, ASTNode containingNode, Invocation formerInvocation, Class<?> variableType) {
    if (accessorNode instanceof GetterAccessor) {
        return new MethodInvocation(((GetterAccessor) accessorNode).getMethod(), variableType == null ? conditionClass : variableType.getName());
    }
    if (accessorNode instanceof MethodAccessor) {
        MethodAccessor methodAccessor = (MethodAccessor) accessorNode;
        Method method = methodAccessor.getMethod();
        MethodInvocation invocation = new MethodInvocation(method);
        boolean isVarArgs = method.isVarArgs();
        readInvocationParams(invocation, methodAccessor.getParms(), methodAccessor.getParameterTypes(), isVarArgs);
        return invocation;
    }
    if (accessorNode instanceof ConstructorAccessor) {
        ConstructorAccessor constructorAccessor = (ConstructorAccessor) accessorNode;
        Constructor constructor = constructorAccessor.getConstructor();
        ConstructorInvocation invocation = new ConstructorInvocation(constructor);
        readInvocationParams(invocation, constructorAccessor.getParameters(), constructorAccessor.getParameterTypes(), constructor.isVarArgs());
        return invocation;
    }
    if (accessorNode instanceof ArrayAccessor) {
        ArrayAccessor arrayAccessor = (ArrayAccessor) accessorNode;
        return new ArrayAccessInvocation(formerInvocation != null ? formerInvocation.getReturnType() : Object[].class, new FixedExpression(int.class, arrayAccessor.getIndex()));
    }
    if (accessorNode instanceof ArrayAccessorNest) {
        ArrayAccessorNest arrayAccessorNest = (ArrayAccessorNest) accessorNode;
        ExecutableAccessor index = (ExecutableAccessor) arrayAccessorNest.getIndex();
        return new ArrayAccessInvocation(formerInvocation != null ? formerInvocation.getReturnType() : Object[].class, analyzeNode(index.getNode()));
    }
    if (accessorNode instanceof ArrayLength) {
        return new ArrayLengthInvocation();
    }
    if (accessorNode instanceof ListAccessor) {
        Class<?> listType = getListType(formerInvocation);
        ListAccessor listAccessor = (ListAccessor) accessorNode;
        return new ListAccessInvocation(listType, new FixedExpression(int.class, listAccessor.getIndex()));
    }
    if (accessorNode instanceof ListAccessorNest) {
        Class<?> listType = getListType(formerInvocation);
        ListAccessorNest listAccessorNest = (ListAccessorNest) accessorNode;
        ExecutableAccessor index = (ExecutableAccessor) listAccessorNest.getIndex();
        return new ListAccessInvocation(listType, analyzeNode(index.getNode()));
    }
    if (accessorNode instanceof MapAccessor) {
        MapAccessor mapAccessor = (MapAccessor) accessorNode;
        return new MapAccessInvocation(Object.class, Object.class, new FixedExpression(Object.class, mapAccessor.getProperty()));
    }
    if (accessorNode instanceof MapAccessorNest) {
        Class<?> keyType = Object.class;
        Class<?> valueType = Object.class;
        Type[] generics = getGenerics(formerInvocation);
        if (generics != null && generics.length == 2 && generics[0] instanceof Class) {
            keyType = (Class<?>) generics[0];
            if (generics[1] instanceof Class)
                valueType = (Class<?>) generics[1];
        }
        MapAccessorNest mapAccessor = (MapAccessorNest) accessorNode;
        ExecutableStatement statement = mapAccessor.getProperty();
        if (statement instanceof ExecutableLiteral) {
            return new MapAccessInvocation(keyType, valueType, new FixedExpression(keyType, ((ExecutableLiteral) statement).getLiteral()));
        } else {
            return new MapAccessInvocation(keyType, valueType, analyzeNode(((ExecutableAccessor) statement).getNode()));
        }
    }
    if (accessorNode instanceof FieldAccessor) {
        return new FieldAccessInvocation(((FieldAccessor) accessorNode).getField());
    }
    if (accessorNode instanceof StaticVarAccessor) {
        Field field = ((StaticVarAccessor) accessorNode).getField();
        return new FieldAccessInvocation(field);
    }
    if (accessorNode instanceof ThisValueAccessor) {
        return new ThisInvocation(accessorNode.getNextNode() == null ? containingNode.getEgressType() : Object.class);
    }
    throw new RuntimeException("Unknown AccessorNode type: " + accessorNode.getClass().getName());
}

Example 3 with ThisValueAccessor

use of org.mvel2.optimizers.impl.refl.nodes.ThisValueAccessor in project mvel by mvel.

the class ReflectiveAccessorOptimizer method getBeanProperty.

private Object getBeanProperty(Object ctx, String property) throws Exception {
    if ((pCtx == null ? currType : pCtx.getVarOrInputTypeOrNull(property)) == Object.class && !pCtx.isStrongTyping()) {
        currType = null;
    }
    if (first) {
        if ("this".equals(property)) {
            addAccessorNode(new ThisValueAccessor());
            return this.thisRef;
        } else if (variableFactory != null && variableFactory.isResolveable(property)) {
            if (variableFactory.isIndexedFactory() && variableFactory.isTarget(property)) {
                int idx;
                addAccessorNode(new IndexedVariableAccessor(idx = variableFactory.variableIndexOf(property)));
                VariableResolver vr = variableFactory.getIndexedVariableResolver(idx);
                if (vr == null) {
                    variableFactory.setIndexedVariableResolver(idx, variableFactory.getVariableResolver(property));
                }
                return variableFactory.getIndexedVariableResolver(idx).getValue();
            } else {
                addAccessorNode(new VariableAccessor(property));
                return variableFactory.getVariableResolver(property).getValue();
            }
        }
    }
    boolean classRef = false;
    Class<?> cls;
    if (ctx instanceof Class) {
        if (MVEL.COMPILER_OPT_SUPPORT_JAVA_STYLE_CLASS_LITERALS && "class".equals(property)) {
            return ctx;
        }
        cls = (Class<?>) ctx;
        classRef = true;
    } else if (ctx != null) {
        cls = ctx.getClass();
    } else {
        cls = currType;
    }
    if (hasPropertyHandler(cls)) {
        PropertyHandlerAccessor acc = new PropertyHandlerAccessor(property, cls, getPropertyHandler(cls));
        addAccessorNode(acc);
        return acc.getValue(ctx, thisRef, variableFactory);
    }
    Member member = cls != null ? getFieldOrAccessor(cls, property) : null;
    if (member != null && classRef && (member.getModifiers() & Modifier.STATIC) == 0) {
        member = null;
    }
    Object o;
    if (member instanceof Method) {
        try {
            o = ctx != null ? ((Method) member).invoke(ctx, EMPTYARG) : null;
            if (hasNullPropertyHandler()) {
                addAccessorNode(new GetterAccessorNH((Method) member, getNullPropertyHandler()));
                if (o == null)
                    o = getNullPropertyHandler().getProperty(member.getName(), ctx, variableFactory);
            } else {
                addAccessorNode(new GetterAccessor((Method) member));
            }
        } catch (IllegalAccessException e) {
            Method iFaceMeth = determineActualTargetMethod((Method) member);
            if (iFaceMeth == null)
                throw new PropertyAccessException("could not access field: " + cls.getName() + "." + property, this.expr, this.start, pCtx);
            o = iFaceMeth.invoke(ctx, EMPTYARG);
            if (hasNullPropertyHandler()) {
                addAccessorNode(new GetterAccessorNH((Method) member, getNullMethodHandler()));
                if (o == null)
                    o = getNullMethodHandler().getProperty(member.getName(), ctx, variableFactory);
            } else {
                addAccessorNode(new GetterAccessor(iFaceMeth));
            }
        } catch (IllegalArgumentException e) {
            if (member.getDeclaringClass().equals(ctx)) {
                try {
                    Class c = Class.forName(member.getDeclaringClass().getName() + "$" + property);
                    throw new CompileException("name collision between innerclass: " + c.getCanonicalName() + "; and bean accessor: " + property + " (" + member.toString() + ")", expr, tkStart);
                } catch (ClassNotFoundException e2) {
                // fallthru
                }
            }
            throw e;
        }
        currType = toNonPrimitiveType(((Method) member).getReturnType());
        return o;
    } else if (member != null) {
        Field f = (Field) member;
        if ((f.getModifiers() & Modifier.STATIC) != 0) {
            o = f.get(null);
            if (hasNullPropertyHandler()) {
                addAccessorNode(new StaticVarAccessorNH((Field) member, getNullMethodHandler()));
                if (o == null)
                    o = getNullMethodHandler().getProperty(member.getName(), ctx, variableFactory);
            } else {
                addAccessorNode(new StaticVarAccessor((Field) member));
            }
        } else {
            o = ctx != null ? f.get(ctx) : null;
            if (hasNullPropertyHandler()) {
                addAccessorNode(new FieldAccessorNH((Field) member, getNullMethodHandler()));
                if (o == null)
                    o = getNullMethodHandler().getProperty(member.getName(), ctx, variableFactory);
            } else {
                addAccessorNode(new FieldAccessor((Field) member));
            }
        }
        currType = toNonPrimitiveType(f.getType());
        return o;
    } else if (ctx instanceof Map && (((Map) ctx).containsKey(property) || nullSafe)) {
        addAccessorNode(new MapAccessor(property));
        return ((Map) ctx).get(property);
    } else if (ctx != null && "length".equals(property) && ctx.getClass().isArray()) {
        addAccessorNode(new ArrayLength());
        return getLength(ctx);
    } else if (LITERALS.containsKey(property)) {
        addAccessorNode(new StaticReferenceAccessor(ctx = LITERALS.get(property)));
        return ctx;
    } else {
        Object tryStaticMethodRef = tryStaticAccess();
        staticAccess = true;
        if (tryStaticMethodRef != null) {
            if (tryStaticMethodRef instanceof Class) {
                addAccessorNode(new StaticReferenceAccessor(tryStaticMethodRef));
                return tryStaticMethodRef;
            } else if (tryStaticMethodRef instanceof Field) {
                addAccessorNode(new StaticVarAccessor((Field) tryStaticMethodRef));
                return ((Field) tryStaticMethodRef).get(null);
            } else {
                addAccessorNode(new StaticReferenceAccessor(tryStaticMethodRef));
                return tryStaticMethodRef;
            }
        } else if (ctx instanceof Class) {
            Class c = (Class) ctx;
            for (Method m : c.getMethods()) {
                if (property.equals(m.getName())) {
                    if (pCtx != null && pCtx.getParserConfiguration() != null ? pCtx.getParserConfiguration().isAllowNakedMethCall() : MVEL.COMPILER_OPT_ALLOW_NAKED_METH_CALL) {
                        o = m.invoke(null, EMPTY_OBJ_ARR);
                        if (hasNullMethodHandler()) {
                            addAccessorNode(new MethodAccessorNH(m, new ExecutableStatement[0], getNullMethodHandler()));
                            if (o == null)
                                o = getNullMethodHandler().getProperty(m.getName(), ctx, variableFactory);
                        } else {
                            addAccessorNode(new MethodAccessor(m, new ExecutableStatement[0]));
                        }
                        return o;
                    } else {
                        addAccessorNode(new StaticReferenceAccessor(m));
                        return m;
                    }
                }
            }
            try {
                Class subClass = findClass(variableFactory, c.getName() + "$" + property, pCtx);
                addAccessorNode(new StaticReferenceAccessor(subClass));
                return subClass;
            } catch (ClassNotFoundException cnfe) {
            // fall through.
            }
        } else if (pCtx != null && pCtx.getParserConfiguration() != null ? pCtx.getParserConfiguration().isAllowNakedMethCall() : MVEL.COMPILER_OPT_ALLOW_NAKED_METH_CALL) {
            return getMethod(ctx, property);
        }
        if (ctx == null) {
            throw new PropertyAccessException("unresolvable property or identifier: " + property, expr, start, pCtx);
        } else {
            throw new PropertyAccessException("could not access: " + property + "; in class: " + ctx.getClass().getName(), expr, start, pCtx);
        }
    }
}