querycriteria.java

非常有影响的 j道 论 坛 源码 国外很有明的专家编写的 ....对java爱好者很有参考价值

/*
 * Copyright 2003-2006 the original author or authors.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 */
package com.jdon.jivejdon.model.query;

import java.util.Calendar;
import java.util.Date;

import com.jdon.controller.cache.StringKey;
import com.jdon.jivejdon.util.ToolsUtil;
import com.jdon.util.UtilDateTime;
import com.jdon.util.UtilValidate;

/**
 * Query Object
   P of EAA http://www.martinfowler.com/eaaCatalog/queryObject.html
   
 * @author banq(http://www.jdon.com)
 *
 */
public class QueryCriteria implements StringKey{
	private static final String DATE_SPLIT = "-";
	
    protected java.util.Date fromDate;
    protected java.util.Date toDate;
    
    private String forumId;
    
    private int messageReplyCountWindow ;
    
    protected ResultSort resultSort;    	
    
    public QueryCriteria(){
    	this.fromDate =  new Date();
    	this.toDate = new Date();
    	this.resultSort = new ResultSort(); 
    }
	
	public java.util.Date getFromDate() {		
		return fromDate;
	}
	
	/**
	 * 
	 * @return yyyy-mm-dd
	 */
	public String getFromDateString() {
		return ToolsUtil.toDateString(fromDate, DATE_SPLIT);
	}
	
	/**
	 * 
	 * @return a long Millis String with no hour/min/ss/mills
	 */
	public String getFromDateNoMillisString() {
		return ToolsUtil.dateToNoMillis(fromDate);
	}
	
	public void setFromDate(String fromYear, String fromMonth, String fromDay) {
		Date thisDate = new Date();
 	    Calendar cal = Calendar.getInstance();
	    if (UtilValidate.isEmpty(fromYear))
     	    fromYear = Integer.toString(cal.get(Calendar.YEAR));
	    if (UtilValidate.isEmpty(fromMonth)){
	    	int month = cal.get(Calendar.MONTH) + 1;
	    	if (month < 10) {
	    		fromMonth = "0" + month;
	        } else {
	        	fromMonth = "" + month;
	        }
	    }
	    if (UtilValidate.isEmpty(fromDay)){
	    	int day = cal.get(Calendar.DAY_OF_MONTH);
	    	 if (day < 10) {
	    		 fromDay = "0" + day;
		     } else {
		         fromDay = "" + day;
		     }
	    }
	    	
	    	
        String fromDate = fromYear + DATE_SPLIT + fromMonth + DATE_SPLIT + fromDay;
        setFromDate(fromDate);
	    //this.fromDate= UtilDateTime.toDate(fromMonth, fromDay, fromYear, "00", "00", "00");
        
	}
	
	/**
	 * 
	 * @param fromDate yyyy-mm-dd
	 */
	public void setFromDate(String fromDate) {
        this.fromDate = ToolsUtil.toDate(fromDate, "00:00", DATE_SPLIT);
	}
	
	
	
	public java.util.Date getToDate() {
		return toDate;
	}
	
	public String getToDateString() {
		return ToolsUtil.toDateString(toDate, DATE_SPLIT);
	}
	
	/**
	 * 
	 * @return a long Millis String with no hour/min/ss/mills
	 */
	public String getToDateNoMillisString() {
		return ToolsUtil.dateToNoMillis(toDate);
	}
	
	public void setToDate(String toYear, String toMonth, String toDay) {
		Date thisDate = new Date();
		Calendar cal = Calendar.getInstance();
		if (UtilValidate.isEmpty(toYear))
			toYear = Integer.toString(cal.get(Calendar.YEAR));
		if (UtilValidate.isEmpty(toMonth)){
			int month = cal.get(Calendar.MONTH) + 1;
	    	if (month < 10) {
	    		toMonth = "0" + month;
	        } else {
	        	toMonth = "" + month;
	        }
		}
			
		if (UtilValidate.isEmpty(toDay)){
			int day = cal.get(Calendar.DAY_OF_MONTH);
	    	 if (day < 10) {
	    		 toDay = "0" + day;
		     } else {
		         toDay = "" + day;
		     }
		}
        String toDate = toYear + DATE_SPLIT + toMonth + DATE_SPLIT + toDay;
        setToDate(toDate);
	}
	
	/**
	 * 
	 * @param toDate yyyy-mm-dd
	 */
	public void setToDate(String toDate) {		
        this.toDate = ToolsUtil.toDate(toDate, "24:00", DATE_SPLIT);
	}
	
	
	
	public String getForumId() {
		return forumId;
	}

	public void setForumId(String forumId) {
		if (UtilValidate.isEmpty(forumId))
			this.forumId = null;
		else
		   this.forumId = forumId;
	}


	public ResultSort getResultSort() {
		return resultSort;
	}


	public void setResultSort(ResultSort resultSort) {
		this.resultSort = resultSort;
	}	
	
	
	
	public int getMessageReplyCountWindow() {
		return messageReplyCountWindow;
	}

	public void setMessageReplyCountWindow(int messageReplyCountWindow) {
		this.messageReplyCountWindow = messageReplyCountWindow;
	}

	/**
	 * this is about cache, 
	 */
	public String toString() {
		StringBuffer sb = new StringBuffer("forumId=");
		if (toDate == null || fromDate == null){
			return "";
		}
		long l = toDate.getTime() - fromDate.getTime();
		long dateRange = l /(1000*60*60*24);
		if (dateRange >1){ // great than 1 day
			sb.append(forumId);
			sb.append("fromDate=");
			sb.append(ToolsUtil.toDateString(fromDate, DATE_SPLIT));
			sb.append("toDate=");
			sb.append(ToolsUtil.toDateString(toDate, DATE_SPLIT));
		}else{//less 1 day, one hour is cache key		
			sb.append(forumId);
			sb.append("fromDate=");
			sb.append(ToolsUtil.toDateHourString(fromDate));
			sb.append("toDate=");
			sb.append(ToolsUtil.toDateHourString(toDate));

		}
		sb.append(" messageReplyCountWindow=").append(messageReplyCountWindow);
		return sb.toString();
	}
	
    
	
}