public Object gridify()

in modules/aop-ext/src/main/java/org/apache/ignite/compute/gridify/aop/aspectj/GridifySetToSetAspectJAspect.java [62:144]
50 lines of code
15 McCabe index (conditional complexity)

    public Object gridify(ProceedingJoinPoint joinPnt) throws Throwable {
        Method mtd = ((MethodSignature)joinPnt.getSignature()).getMethod();

        GridifySetToSet ann = mtd.getAnnotation(GridifySetToSet.class);

        assert ann != null : "Intercepted method does not have gridify annotation.";

        // Since annotations in Java don't allow 'null' as default value
        // we have accept an empty string and convert it here.
        // NOTE: there's unintended behavior when user specifies an empty
        // string as intended Ignite instance name.
        // NOTE: the 'ann.igniteInstanceName() == null' check is added to mitigate
        // annotation bugs in some scripting languages (e.g. Groovy).
        String igniteInstanceName = F.isEmpty(ann.igniteInstanceName()) ? ann.gridName() : ann.igniteInstanceName();

        if (F.isEmpty(igniteInstanceName))
            igniteInstanceName = null;

        if (G.state(igniteInstanceName) != STARTED)
            throw new IgniteCheckedException("Grid is not locally started: " + igniteInstanceName);

        GridifyNodeFilter nodeFilter = null;

        if (!ann.nodeFilter().equals(GridifyNodeFilter.class))
            nodeFilter = ann.nodeFilter().newInstance();

        // Check method return type.
        checkMethodSignature(mtd);

        GridifyArgumentBuilder argBuilder = new GridifyArgumentBuilder();

        // Creates task argument.
        GridifyRangeArgument arg = argBuilder.createTaskArgument(
            mtd.getDeclaringClass(),
            mtd.getName(),
            mtd.getReturnType(),
            mtd.getParameterTypes(),
            mtd.getParameterAnnotations(),
            joinPnt.getArgs(),
            joinPnt.getTarget());

        if (!ann.interceptor().equals(GridifyInterceptor.class)) {
            // Check interceptor first.
            if (!ann.interceptor().newInstance().isGridify(ann, arg))
                return joinPnt.proceed();
        }

        // Proceed locally for negative threshold parameter.
        if (ann.threshold() < 0)
            return joinPnt.proceed();

        // Analyse where to execute method (remotely or locally).
        if (arg.getInputSize() != UNKNOWN_SIZE && arg.getInputSize() <= ann.threshold())
            return joinPnt.proceed();

        // Check is split to jobs allowed for input method argument with declared splitSize.
        checkIsSplitToJobsAllowed(arg, ann);

        try {
            Ignite ignite = G.ignite(igniteInstanceName);

            return execute(ignite.compute(), joinPnt.getSignature().getDeclaringType(), arg, nodeFilter,
                ann.threshold(), ann.splitSize(), ann.timeout());
        }
        catch (Exception e) {
            for (Class<?> ex : ((MethodSignature)joinPnt.getSignature()).getMethod().getExceptionTypes()) {
                // Descend all levels down.
                Throwable cause = e.getCause();

                while (cause != null) {
                    if (ex.isAssignableFrom(cause.getClass()))
                        throw cause;

                    cause = cause.getCause();
                }

                if (ex.isAssignableFrom(e.getClass()))
                    throw e;
            }

            throw new GridifyRuntimeException("Undeclared exception thrown: " + e.getMessage(), e);
        }
    }