GradeHelper.java

package com.myqsc.mobile2.Grade.Util;

import android.content.Context;

import com.myqsc.mobile2.network.DataUpdater;
import com.myqsc.mobile2.uti.LogHelper;
import com.myqsc.mobile2.uti.Utility;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.util.ArrayList;
import java.util.List;

/**
 * Created by richard on 13-9-25.
 */
public class GradeHelper {
    Context mContext = null;
    List<GradeClassStructure> grade = new ArrayList<GradeClassStructure>();
    List<GradeAverageStructure> average = new ArrayList<GradeAverageStructure>();

    public GradeHelper(Context context) {
        mContext = context;

        String data = mContext.getSharedPreferences(Utility.PREFERENCE, 0)
                .getString(DataUpdater.JW_CHENGJI, null);
        if (data == null) {
            return ;
        }


        try {
            JSONObject jsonObject = new JSONObject(data);
            JSONArray gradeJSONArray = jsonObject.getJSONArray("chengji_array");
            for (int i = 0; i != gradeJSONArray.length(); ++i) {
                try {
                    grade.add(new GradeClassStructure(gradeJSONArray.getJSONObject(i)));
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }

            JSONArray averageJSONArray = jsonObject.getJSONArray("junji_array");
            for (int i = 0; i != averageJSONArray.length(); ++i) {
                try {
                    average.add(new GradeAverageStructure(averageJSONArray.getJSONObject(i)));
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
        } catch (JSONException e) {
            e.printStackTrace();
        }
    }

    public GradeAverageStructure getTotalAverageGrade() {
        for (GradeAverageStructure structure : average) {
            if (structure.time.compareTo("所有课程") == 0) {
                return structure;
            }
        }
        return null;
    }

    public List<GradeClassStructure> getTermGrade(String term) {
        List<GradeClassStructure> list = new ArrayList<GradeClassStructure>();
        int yearFrom    = Integer.valueOf(term.substring(0, 4));
        int yearTo      = Integer.valueOf(term.substring(5, 9));
        int t           = 1;
        if (term.contains("春夏"))
            t           = 2;
        String termString = "(" + yearFrom + "-" + yearTo + "-" + t + ")";
        LogHelper.d(termString);

        for (GradeClassStructure structure : grade) {
            if (structure.courseID.contains(termString))
                list.add(structure);
        }

        return list;
    }

    public List<GradeAverageStructure> getAllTermGrade() {
        return this.average;
    }

    public List<String> getAllTermString() {
        List<String> list = new ArrayList<String>();
        for (GradeAverageStructure structure : average) {
            if (structure.time.contains("所有"))
                continue;
            list.add(structure.time);
        }
        return list;
    }
}