Examples with VariableResolverFactory org.mule.mvel2.integration.VariableResolverFactory used on opensource projects

Example 11 with VariableResolverFactory

use of org.mule.mvel2.integration.VariableResolverFactory in project drools by kiegroup.

the class MVELCompilationUnit method getFactory.

public VariableResolverFactory getFactory(final Object knowledgeHelper, final Declaration[] prevDecl, final Rule rule, final Tuple tuples, final Object[] otherVars, final InternalWorkingMemory workingMemory, final GlobalResolver globals) {
    VariableResolverFactory factory = createFactory();
    updateFactory(knowledgeHelper, prevDecl, rule, null, knowledgeHelper, tuples, otherVars, workingMemory, globals, factory);
    return factory;
}

Example 12 with VariableResolverFactory

use of org.mule.mvel2.integration.VariableResolverFactory in project drools by kiegroup.

the class MVELEnabledExpression method getValue.

public boolean getValue(final Tuple tuple, final Declaration[] declrs, final RuleImpl rule, final WorkingMemory workingMemory) {
    VariableResolverFactory factory = unit.getFactory(null, declrs, rule, null, (LeftTuple) tuple, null, (InternalWorkingMemory) workingMemory, workingMemory.getGlobalResolver());
    // do we have any functions for this namespace?
    InternalKnowledgePackage pkg = workingMemory.getKnowledgeBase().getPackage("MAIN");
    if (pkg != null) {
        MVELDialectRuntimeData data = (MVELDialectRuntimeData) pkg.getDialectRuntimeRegistry().getDialectData(this.id);
        factory.setNextFactory(data.getFunctionFactory());
    }
    return ((Boolean) MVEL.executeExpression(this.expr, null, factory)).booleanValue();
}

Example 13 with VariableResolverFactory

use of org.mule.mvel2.integration.VariableResolverFactory in project drools by kiegroup.

the class MVELEvalExpression method evaluate.

public boolean evaluate(final Tuple tuple, final Declaration[] requiredDeclarations, final WorkingMemory workingMemory, final Object context) throws Exception {
    VariableResolverFactory factory = (VariableResolverFactory) context;
    unit.updateFactory(null, (LeftTuple) tuple, null, (InternalWorkingMemory) workingMemory, workingMemory.getGlobalResolver(), factory);
    // do we have any functions for this namespace?
    InternalKnowledgePackage pkg = workingMemory.getKnowledgeBase().getPackage("MAIN");
    if (pkg != null) {
        MVELDialectRuntimeData data = (MVELDialectRuntimeData) pkg.getDialectRuntimeRegistry().getDialectData(this.id);
        factory.setNextFactory(data.getFunctionFactory());
    }
    final Boolean result = (Boolean) MVEL.executeExpression(this.expr, null, factory);
    return result.booleanValue();
}

Example 14 with VariableResolverFactory

use of org.mule.mvel2.integration.VariableResolverFactory in project mvel by mvel.

the class ForNode method getReducedValueAccelerated.

public Object getReducedValueAccelerated(Object ctx, Object thisValue, VariableResolverFactory factory) {
    VariableResolverFactory ctxFactory = indexAlloc ? factory : new MapVariableResolverFactory(new HashMap<String, Object>(1), factory);
    Object v;
    for (initializer.getValue(ctx, thisValue, ctxFactory); (Boolean) condition.getValue(ctx, thisValue, ctxFactory); after.getValue(ctx, thisValue, ctxFactory)) {
        v = compiledBlock.getValue(ctx, thisValue, ctxFactory);
        if (ctxFactory.tiltFlag())
            return v;
    }
    return null;
}

Example 15 with VariableResolverFactory

use of org.mule.mvel2.integration.VariableResolverFactory in project mvel by mvel.

the class PropertyAccessor method getMethod.

/**
 * Find an appropriate method, execute it, and return it's response.
 *
 * @param ctx  -
 * @param name -
 * @return -
 */
@SuppressWarnings({ "unchecked" })
private Object getMethod(Object ctx, String name) {
    int _start = cursor;
    String tk = cursor != end && property[cursor] == '(' && ((cursor = balancedCapture(property, cursor, '(')) - _start) > 1 ? new String(property, _start + 1, cursor - _start - 1) : "";
    cursor++;
    Object[] args;
    if (tk.length() == 0) {
        args = ParseTools.EMPTY_OBJ_ARR;
    } else {
        List<char[]> subtokens = parseParameterList(tk.toCharArray(), 0, -1);
        args = new Object[subtokens.size()];
        for (int i = 0; i < subtokens.size(); i++) {
            args[i] = eval(subtokens.get(i), thisReference, variableFactory);
        }
    }
    if (first && variableFactory != null && variableFactory.isResolveable(name)) {
        Object ptr = variableFactory.getVariableResolver(name).getValue();
        if (ptr instanceof Method) {
            ctx = ((Method) ptr).getDeclaringClass();
            name = ((Method) ptr).getName();
        } else if (ptr instanceof MethodStub) {
            ctx = ((MethodStub) ptr).getClassReference();
            name = ((MethodStub) ptr).getMethodName();
        } else if (ptr instanceof FunctionInstance) {
            ((FunctionInstance) ptr).getFunction().checkArgumentCount(args.length);
            return ((FunctionInstance) ptr).call(null, thisReference, variableFactory, args);
        } else {
            throw new OptimizationFailure("attempt to optimize a method call for a reference that does not point to a method: " + name + " (reference is type: " + (ctx != null ? ctx.getClass().getName() : null) + ")");
        }
        first = false;
    }
    if (ctx == null)
        throw new CompileException("no such method or function: " + name, property, cursor);
    /**
     * If the target object is an instance of java.lang.Class itself then do not
     * adjust the Class scope target.
     */
    Class cls = currType != null ? currType : ((ctx instanceof Class ? (Class) ctx : ctx.getClass()));
    currType = null;
    if (cls == Proto.ProtoInstance.class) {
        return ((Proto.ProtoInstance) ctx).get(name).call(null, thisReference, variableFactory, args);
    }
    /**
     * Check to see if we have already cached this method;
     */
    Object[] cache = checkMethodCache(cls, createSignature(name, tk));
    Method m;
    Class[] parameterTypes;
    if (cache != null) {
        m = (Method) cache[0];
        parameterTypes = (Class[]) cache[1];
    } else {
        m = null;
        parameterTypes = null;
    }
    /**
     * If we have not cached the method then we need to go ahead and try to resolve it.
     */
    if (m == null) {
        /**
         * Try to find an instance method from the class target.
         */
        if ((m = getBestCandidate(args, name, cls, cls.getMethods(), false)) != null) {
            addMethodCache(cls, createSignature(name, tk), m);
            parameterTypes = m.getParameterTypes();
        }
        if (m == null) {
            /**
             * If we didn't find anything, maybe we're looking for the actual java.lang.Class methods.
             */
            if ((m = getBestCandidate(args, name, cls, cls.getDeclaredMethods(), false)) != null) {
                addMethodCache(cls, createSignature(name, tk), m);
                parameterTypes = m.getParameterTypes();
            }
        }
    }
    // If we didn't find anything and the declared class is different from the actual one try also with the actual one
    if (m == null && cls != ctx.getClass() && !(ctx instanceof Class)) {
        cls = ctx.getClass();
        if ((m = getBestCandidate(args, name, cls, cls.getDeclaredMethods(), false)) != null) {
            addMethodCache(cls, createSignature(name, tk), m);
            parameterTypes = m.getParameterTypes();
        }
    }
    if (ctx instanceof PrototypalFunctionInstance) {
        final VariableResolverFactory funcCtx = ((PrototypalFunctionInstance) ctx).getResolverFactory();
        Object prop = funcCtx.getVariableResolver(name).getValue();
        if (prop instanceof PrototypalFunctionInstance) {
            return ((PrototypalFunctionInstance) prop).call(ctx, thisReference, new InvokationContextFactory(variableFactory, funcCtx), args);
        }
    }
    if (m == null) {
        StringAppender errorBuild = new StringAppender();
        for (int i = 0; i < args.length; i++) {
            errorBuild.append(args[i] != null ? args[i].getClass().getName() : null);
            if (i < args.length - 1)
                errorBuild.append(", ");
        }
        if ("size".equals(name) && args.length == 0 && cls.isArray()) {
            return getLength(ctx);
        }
        throw new PropertyAccessException("unable to resolve method: " + cls.getName() + "." + name + "(" + errorBuild.toString() + ") [arglength=" + args.length + "]", property, st, pCtx);
    } else {
        for (int i = 0; i < args.length; i++) {
            args[i] = convert(args[i], paramTypeVarArgsSafe(parameterTypes, i, m.isVarArgs()));
        }
        /**
         * Invoke the target method and return the response.
         */
        currType = toNonPrimitiveType(m.getReturnType());
        try {
            return m.invoke(ctx, normalizeArgsForVarArgs(parameterTypes, args, m.isVarArgs()));
        } catch (IllegalAccessException e) {
            try {
                addMethodCache(cls, createSignature(name, tk), (m = getWidenedTarget(m)));
                return m.invoke(ctx, args);
            } catch (Exception e2) {
                throw new PropertyAccessException("unable to invoke method: " + name, property, cursor, e2, pCtx);
            }
        } catch (RuntimeException e) {
            throw e;
        } catch (Exception e) {
            throw new PropertyAccessException("unable to invoke method: " + name, property, cursor, e, pCtx);
        }
    }
}