wp/nwyj/.svn/pristine/74/74bd7e94f6163b80d52cdb302f08eb278cba8585.svn-base

package com.chart;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import com.chart.vo.ChartData;
import com.chart.vo.PieChartData;
import com.chart.vo.QueryVo;
import com.formaction.vo.RowSet;

public class BarChart extends Chart{

	private String	propertyName;
	private QueryVo	qv	= null;

	public BarChart(QueryVo qv) {
		this.qv = qv;
		this.propertyName = qv.getFieldXAxis();
	}

	@SuppressWarnings({ "rawtypes" })
	@Override
	public List<ChartData> getJsonData() {

		List<ChartData> chartData = new ArrayList<ChartData>();

		List<RowSet> datas = super.queryData(qv);

		Map<String, Integer> temp = new HashMap<String, Integer>();
		if (null == datas || datas.size() == 0) {
			return chartData;
		}
		RowSet rowSet = datas.get(0);

		List<Map> rows = rowSet.getRows();

		for (Map m : rows) {
			for (Object key : m.keySet()) {
				String k = String.valueOf(key);
				String v = String.valueOf(m.get(k));

				// String constantName = qv.getTranferConstant().get(v);

				if (propertyName.equalsIgnoreCase(String.valueOf(k))) {// 取常量值
					if (null == temp.get(v)) {
						temp.put(v, 1);
					} else {
						temp.put(v, temp.get(v) + 1);
					}
				}
			}
		}
		Object[] key = temp.keySet().toArray();
		Arrays.sort(key);
		for (int i = 0; i < key.length; i++) {
			PieChartData cd = new PieChartData();
			cd.setName(qv.getTranferConstant().get(key[i].toString()));
			cd.setValue(temp.get(key[i]));
			chartData.add(cd);
		}
		return chartData;
	}

}