如何评估MVEL中的日期

Question

我需要使用MVEL评估标准字符串。我能够比较所有原始值。我在比较日期时遇到了问题。 MVEL支持默认日期格式＆＃39; dd-MMM-yyyy＆＃39;但是我需要使用MVEL将工具日期与字符串Date进行比较。以下代码通过异常

Shared files

例外

public class Person {
    private int age;
    private String name;
    private Date joiningDate;

    public Date getJoiningDate() {
        return joiningDate;
    }
    public void setJoiningDate(Date joiningDate) {
        this.joiningDate = joiningDate;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
}

public class App {
    public static void main(String[] args) {
        Person person = new Person();
        person.setName("Raja");
        person.setAge(30);
        Calendar calendar=Calendar.getInstance();
        //24-August -2016
        calendar.set(2016, 7, 24);
        Date joiningDate = calendar.getTime();
        person.setJoiningDate(joiningDate);
        // all the constant fetched from DB
        String criteria = "name == 'Raja' && age == 30 && joiningDate <=\"24-Aug-2016\"";
        System.out.println("Is Criteria match : "+isCriteriaMatch(criteria, person));
    }

    private static boolean isCriteriaMatch(String criteria, Object object) {
        boolean istrue = false;
        if (criteria != null && !criteria.isEmpty()) {
            istrue = MVEL.evalToBoolean(criteria, object);
        }
        return istrue;
    }

    private static String formatDate(Date date){
        System.out.println("Date : "+date);
        SimpleDateFormat sdf = new SimpleDateFormat("dd-MMM-yyyy");
        return "\"".concat(sdf.format(date)).concat("\"");
        //return sdf.format(date);
    }
}