第三方图表插件

package com.fr.plugins.democharts.commonpie;

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<NormalChartData> {
    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 {

        JSONObject jsonObject = JSONObject.create();
        jsonObject.put("series", seriesJSONArray())
                .put("title", JSONObject.create().put("text", getCustomData()));
        return jsonObject;
    }

    private JSONArray seriesJSONArray() throws JSONException {
        NormalChartData normalChartData = getChartData();
        int seriesLen = normalChartData.getSeriesCount();
        String radius = format.format(1.0 / seriesLen);
        //对系列循环
        JSONArray series = JSONArray.create();
        for (int index = 0; index < seriesLen; index++) {
            JSONObject wrapper = JSONObject.create()
                    .put("type", "pie")
                    .put("data", pointJSONArray(index)) //将每个系列值给data
                    .put("name", normalChartData.getSeries_array()[index].toString());//将系列名给系列
            if (seriesLen > 1) {
                JSONArray center = JSONArray.create()
                        .put(format.format((float) index / (seriesLen + 1) + 0.20))
                        .put("55%");
                wrapper.put("radius", radius)
                        .put("center", center);
            }
            series.put(wrapper);
        }
        return series;
    }

    private JSONArray pointJSONArray(int index) throws JSONException {
        NormalChartData normalChartData = getChartData();
        int categoriesLen = normalChartData.getCategoryLabelCount();
        JSONArray point = JSONArray.create();
        for (int i = 0; i < categoriesLen; i++) {
            JSONObject item = JSONObject.create();
            //将分类名给name
            String name = normalChartData.getCategory_array()[i].toString();
            item.put("name", name);
            if (normalChartData.getSeries_value_2D().length > 0) {
                //将点的值给data
                item.put("value", normalChartData.getSeries_value_2D()[index][i]);
            }
            point.put(item);
        }
        return point;
    }

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


}