第三方图表插件

package com.fr.plugins.democharts.commenDataPanePie;

import com.fr.chart.chartattr.Charts;
import com.fr.chart.chartdata.NormalChartData;
import com.fr.json.JSONArray;
import com.fr.json.JSONException;
import com.fr.json.JSONObject;
import com.fr.stable.web.Repository;
import com.fr.stable.xml.XMLPrintWriter;
import com.fr.stable.xml.XMLableReader;

import java.text.DecimalFormat;
import java.text.NumberFormat;


/**
 * Created by mengao on 2017/4/26.
 * chart类，需要继承Charts
 * 需要实现方法：getChartID
 * 需要实现方法：writeXML
 * 需要实现方法：readXML
 * 需要实现方法：toJSON
 */
public class pieChart extends Charts {
    private String customData = "公共数据配置面板demo";

    private static final NumberFormat format = new DecimalFormat("##%");


    public String getCustomData() {
        return customData;
    }

    public void setCustomData(String customData) {
        this.customData = customData;
    }

    @Override
    public void writeXML(XMLPrintWriter xmlPrintWriter) {
        super.writeXML(xmlPrintWriter);
        xmlPrintWriter.startTAG("customChartDemo")
                .attr("custom", getCustomData())
                .end();
    }

    @Override
    public void readXML(XMLableReader xmLableReader) {
        super.readXML(xmLableReader);
        if (xmLableReader.isChildNode()) {
            String tagName = xmLableReader.getTagName();
            if (tagName.equals("customChartDemo")) {
                setCustomData(xmLableReader.getAttrAsString("custom", "111"));
            }
        }
    }

    /**
     * 读出字符串，然后传到前台
     * 注意：需要获取数据配置中的数据，使用getChartData()方法
     */
    @Override
    //tojson的时候注意用getChartData()方法获取当前数据集，然后自主拼接成json
    public JSONObject toJSON(Repository repo) throws JSONException {
        //用默认的  NormalChartData 进行数据配置
        JSONObject jsonObject = new JSONObject();
        if (this.getChartData() instanceof NormalChartData) {
            NormalChartData normalChartData = (NormalChartData) this.getChartData();
            JSONArray series = JSONArray.create();

            int len = normalChartData.getCategory_array().length;//获取分类数组的长度
            int cn = normalChartData.getSeries_array().length;//获取系列数组的长度

            String r = "100%";
            if (cn > 1) {
                r = format.format(1.0 / (cn + 1));
            }

            for (int c = 0; c < cn; c++) {
                //对系系列循环
                JSONObject wrapper = JSONObject.create();
                series.put(wrapper);

                JSONArray point = JSONArray.create();
                wrapper.put("type", "pie");
                //将每个系类值给data
                wrapper.put("data", point);

                if (cn > 1) {
                    wrapper.put("radius", r);
                    wrapper.put("center", JSONArray.create().put(format.format(1.0 * c / (cn + 1) + 0.20)).put("55%"));
                }
                //将系列名给系列
                wrapper.put("name", normalChartData.getSeries_array()[c].toString());
                for (int i = 0; i < len; i++) {
                    //
                    String name = normalChartData.getCategory_array()[i].toString();
                    JSONObject item = JSONObject.create();
                    point.put(item);
                    //将分类名给name
                    item.put("name", name);
                    if (normalChartData.getSeries_value_2D().length > 0) {
                        //将点的值给data
                        item.put("value", normalChartData.getSeries_value_2D()[c][i]);
                    }
                }
            }

            jsonObject.put("series", series);
            JSONObject title = new JSONObject();
            title.put("text", getCustomData());
            jsonObject.put("title", title);

        }
        return jsonObject;
    }


    @Override
    public String getChartID() {
        return "CommenDataDemoChartsPie";
    }


}