querymimecontentsavestrategy.java

MM7彩信对接网关示例

/*
 * Created on 2005-5-26
 *
 * TODO To change the template for this generated file go to
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 */
package com.rainbow.mms.common;

import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import org.hibernate.Criteria;
import org.hibernate.Session;

/**
 * 查询指定的MIME格式是如何在数据库中存储的，0表示二进制，1表示字符串
 * @author Rainbow MMS Group Leader —— TrWorks
 */
public class QueryMimeContentSaveStrategy {
	
	private static Map mimeContentSaveStrategy = new HashMap();
	
	private static void loadSaveStrategy(Session s){
		
		Session sess = s;
		Criteria cr = sess.createCriteria(MimeContentSaveStrategy.class);
		List ps = cr.list();
		if (ps == null){
			System.out.println("Error : Load MimeContent Save Stratgy Failed!");
			return;
		}
		
		for (Iterator it = ps.iterator(); it.hasNext();){
			MimeContentSaveStrategy element = (MimeContentSaveStrategy)it.next();
			if (mimeContentSaveStrategy.containsKey(element.getMimeType()) == false){
				mimeContentSaveStrategy.put(element.getMimeType(), element);
			}
		}
		
	}
	
	/**
	 * 查询指定的MIME格式是如何在数据库中存储的，0表示二进制，1表示字符串
	 * @param mimeType  指定的MIME格式
	 * @param s 数据库的Session
	 * @return 0表示二进制，1表示字符串
	 */
	public static int getSaveStrategy(String mimeType, Session s){

		//System.out.println("Query mimeSaveType : " + mimeType);
		// 如果类型库中不存在这样的Mime，那么就重新从数据库中加载，看看是否存在
		if (mimeContentSaveStrategy.containsKey(mimeType) == false){
			loadSaveStrategy(s);
		}
		
		// 如果类型库中没有这样的Mime，则按照二进制存储
		MimeContentSaveStrategy object = (MimeContentSaveStrategy)mimeContentSaveStrategy.get(mimeType);
		if (object == null){
			//System.out.println("Query mimeSaveType result : " + 0);
			return 0;
		}
		else{
			return object.getSaveStrategy();
		}
	}

}