Examples with ListCreator org.mvel2.optimizers.impl.refl.collection.ListCreator used on opensource projects

Example 1 with ListCreator

use of org.mvel2.optimizers.impl.refl.collection.ListCreator in project mvel by mikebrock.

the class ReflectiveAccessorOptimizer method _getAccessor.

private Accessor _getAccessor(Object o, Class type) {
    if (o instanceof List) {
        Accessor[] a = new Accessor[((List) o).size()];
        int i = 0;
        for (Object item : (List) o) {
            a[i++] = _getAccessor(item, type);
        }
        returnType = List.class;
        return new ListCreator(a);
    } else if (o instanceof Map) {
        Accessor[] k = new Accessor[((Map) o).size()];
        Accessor[] v = new Accessor[k.length];
        int i = 0;
        for (Object item : ((Map) o).keySet()) {
            // key
            k[i] = _getAccessor(item, type);
            // value
            v[i++] = _getAccessor(((Map) o).get(item), type);
        }
        returnType = Map.class;
        return new MapCreator(k, v);
    } else if (o instanceof Object[]) {
        Accessor[] a = new Accessor[((Object[]) o).length];
        int i = 0;
        int dim = 0;
        if (type != null) {
            String nm = type.getName();
            while (nm.charAt(dim) == '[') dim++;
        } else {
            type = Object[].class;
            dim = 1;
        }
        try {
            Class base = getBaseComponentType(type);
            Class cls = dim > 1 ? findClass(null, repeatChar('[', dim - 1) + "L" + base.getName() + ";", pCtx) : type;
            for (Object item : (Object[]) o) {
                expectType(a[i++] = _getAccessor(item, cls), base, true);
            }
            return new ArrayCreator(a, getSubComponentType(type));
        } catch (ClassNotFoundException e) {
            throw new RuntimeException("this error should never throw:" + getBaseComponentType(type).getName(), e);
        }
    } else {
        if (returnType == null)
            returnType = Object.class;
        if (type.isArray()) {
            return new ExprValueAccessor((String) o, type, ctx, variableFactory, pCtx);
        } else {
            return new ExprValueAccessor((String) o, Object.class, ctx, variableFactory, pCtx);
        }
    }
}