/**
 * 
 */
package com.lily.dap.service.organize.impl;

import java.text.CollationKey;
import java.text.Collator;
import java.util.Comparator;

import com.lily.dap.model.organize.Department;
import com.lily.dap.model.organize.Group;
import com.lily.dap.model.organize.Person;
import com.lily.dap.model.organize.Post;

/**
 * 實現組織機構的排序算法
 * 
 * @author zouxuemo
 *
 */
public class OrganizeComparator implements Comparator {
	private Collator collator = Collator.getInstance();

	/* （非 Javadoc）
	 * @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)
	 */
	public int compare(Object o1, Object o2) {
		if (o1 instanceof Person && o2 instanceof Person) {
			Person p1 = (Person)o1;
			Person p2 = (Person)o2;
			
		    CollationKey key1 = collator.getCollationKey(p1.getName());
		    CollationKey key2 = collator.getCollationKey(p2.getName());
		    return key1.compareTo(key2);
		} else if (o1 instanceof Department && o2 instanceof Department) {
			Department d1 = (Department)o1;
			Department d2 = (Department)o2;
			
			return d1.getCode().compareTo(d2.getCode());
		} else if (o1 instanceof Post && o2 instanceof Post) {
			Post p1 = (Post)o1;
			Post p2 = (Post)o2;

			return p1.getCode().compareTo(p2.getCode());
		} else if (o1 instanceof Group && o2 instanceof Group) {
			Group g1 = (Group)o1;
			Group g2 = (Group)o2;
			
		    CollationKey key1 = collator.getCollationKey(g1.getName());
		    CollationKey key2 = collator.getCollationKey(g2.getName());
		    return key1.compareTo(key2);
		}
		
		return -1;
	}
}