package com.vci.client.uif.actions.client;

import java.util.HashMap;
import java.util.Map;

import com.vci.client.omd.provider.ApProvider;
import com.vci.client.omd.statepool.StatePoolStart;
import com.vci.corba.omd.atm.AttribItem;
import com.vci.corba.omd.stm.StatePool;


/**
 * 客户端缓存
 * 缓存表单、列表中常用的需要转译的数据库信息
 * @author VCI
 *
 */
public class UIFCache {
	
	/**
	 * 缓存对象
	 */
	private static UIFCache cache = new UIFCache();
	/**
	 * 生命周期状态池缓存
	 *
	 */
	private StatePool[] statePools = null;
	
	/**
	 * 枚举类型缓存
	 * key:btmName + "#" + attrName + "#" + key
	 */
	private Map<String, String> sysEnumMap = new HashMap<String, String>();
	
	/**
	 * 属性池缓存
	 */
	private HashMap<String, AttribItem> attrItemMap = null;
	
	/**
	 * 构造器
	 */
	private UIFCache(){}
	
	/**
	 * 获得缓存对象实例
	 * @return
	 */
	public static UIFCache getInstance(){
		return cache;
	}
	
	/**
	 * 获得生命周期状态池信息
	 * @return
	 * @throws Exception
	 */
	public StatePool[] getStatePools() throws Exception{
		if(statePools == null) {
			statePools = StatePoolStart.getService().getStatePools();
		}
		return statePools;
	}
	
	/**
	 * 枚举类型缓存
	 * key:btmName + "#" + attrName + "#" + key
	 * @return
	 */
	public Map<String, String> getSysEnumMap(){
		return sysEnumMap;
	}
	
	/**
	 * 获得属性池集合
	 */
	public Map<String, AttribItem> getAllAttributeMap() {
		if (attrItemMap == null){
			attrItemMap = new HashMap<String, AttribItem>();
		} 
		if(attrItemMap.isEmpty()) {
			AttribItem[] attrItems = ApProvider.getAllAbItems();
			for (AttribItem attrItem : attrItems) {
				attrItemMap.put(attrItem.name, attrItem);
			}
		}
		return attrItemMap;
	}
}