Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

public class Main {
    public static Object asListItem(Object node, String key, int idx) {
        List<?> list = asList(node, key);
        return (idx >= 0 && idx < list.size() ? list.get(idx) : null);
    }

    public static List<?> asList(Object node) {
        if (node instanceof List<?>) {
            return (List<?>) node;
        } else {
            return new ArrayList<Object>();
        }
    }

    public static List<?> asList(Object node, String key) {
        Object value;

        if ((node instanceof HashMap<?, ?>) && ((value = ((HashMap<?, ?>) node).get(key)) != null)) {
            if (value instanceof List<?>) {
                return (List<?>) value;
            } else {
                return new ArrayList<Object>();
            }
        } else {
            return new ArrayList<Object>();
        }
    }
}