RepliesModelImple.java

package com.martin.ionichinabystudio.model.impl;

import android.content.Context;

import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.google.gson.Gson;
import com.martin.ionichinabystudio.config.HttpConfig;
import com.martin.ionichinabystudio.model.entity.TopicDetialResult;
import com.martin.ionichinabystudio.model.entity.TopicListResult;
import com.martin.ionichinabystudio.model.inter.RepliesModel;
import com.martin.ionichinabystudio.presenter.inter.OnResultListener;
import com.martin.simpledevelop.utils.cache.ACache;
import com.martin.simpledevelop.utils.file.SaFileUtils;
import com.martin.simpledevelop.utils.http.volley.VolleyRequest;
import com.martin.simpledevelop.utils.security.SaMD5Utils;

import java.io.File;

/**
 * @Description
 * @File ${FILE_NAME}
 * @Package com.martin.ionichinabystudio.model.impl
 * @Date 2015/7/1323:48
 * @Author Donghongyu 1358506549@qq.com
 * @Version v1.0.0
 */
public class RepliesModelImple implements RepliesModel {
    /**
     * 数据缓存工具
     */
    private ACache mCache = null;
    //将json数据转换成对象
    private Gson gson;

    public RepliesModelImple(Context context) {
        // 构建指定文件夹的缓存
        mCache = ACache
                .get(new File(SaFileUtils.getCacheDownloadDir(context)));
        gson = new Gson();
    }

    @Override
    public void getReplies(String topicId, final OnResultListener listener) {

        //进行网络访问链接的拼装操作
        final String url = HttpConfig.API_GET_TOPIC_DETAILS + "/" + topicId;
        /*数据层操作*/
        VolleyRequest.newInstance().newGsonRequest(url,
                TopicDetialResult.class, new Response.Listener<TopicDetialResult>() {
                    @Override
                    public void onResponse(TopicDetialResult result) {
                        if (result != null) {
                            // 进行Http响应数据缓存,将请求连接加密作为key
                            mCache.put(SaMD5Utils.encode(url), gson.toJson(result));
                            //回调成功的监听
                            listener.onSuccess(result);
                        } else {
                            listener.onError();
                            //从缓存中获取到数据
                            String jsonReslut = mCache.getAsString(SaMD5Utils.encode(url));
                            if (jsonReslut != null) {
                                result = gson.fromJson(jsonReslut, TopicDetialResult.class);
                                listener.onSuccess(result);
                            }
                        }
                    }
                }, new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {
                        listener.onError();
                        TopicDetialResult result;
                        //从缓存中获取到数据
                        String jsonReslut = mCache.getAsString(SaMD5Utils.encode(url));
                        if (jsonReslut != null) {
                            result = gson.fromJson(jsonReslut, TopicDetialResult.class);
                            listener.onSuccess(result);
                        }
                    }
                });


    }
}