ClientContext.java

package com.threeH.MyExhibition.service;

import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;

/**
 * 该类缓存客户端数据
 *
 * @author clhe
 */

public class ClientContext implements Serializable {
    /**
     * 客户端配置参数
     */
    private Properties configProperties;

    /**
     * 单例缓存上下文
     */
    private static ClientContext context;

    /**
     * 缓存客户端运行时的业务数据
     */
    private Map<String, Object> businessData;

    /**
     * 缓存当前页面操作信息
     */
    private Map<String, Object> pageCache;

    private ClientContext() {
        businessData = new HashMap<String, Object>();
        pageCache = new HashMap<String, Object>();
    }

    public static synchronized ClientContext createClientContext() {
        if (context == null) {
            context = new ClientContext();
        }
        return context;
    }

    /**
     * 设置客户端配置参数属性集
     */
    public void setConfigProperties(Properties pro) {
        this.configProperties = pro;
    }

    public Object getBusinessData(String name) {
        return businessData.get(name);
    }

    public void addBusinessData(String name, Object data) {
        businessData.put(name, data);
    }

    public Object getPageCache(String name) {
        return pageCache.get(name);
    }

    public void addPageCache(String name, Object data) {
        pageCache.put(name, data);
    }

    public String getSystemProperty(String name) {
        return configProperties.getProperty(name);
    }
}