package project.web.api;
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import java.math.RoundingMode;
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import java.text.DecimalFormat;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import javax.servlet.http.HttpServletRequest;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.web.bind.annotation.CrossOrigin;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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import com.alibaba.fastjson.JSON;
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import com.alibaba.fastjson.JSONObject;
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import kernel.exception.BusinessException;
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import kernel.util.StringUtils;
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import kernel.web.BaseAction;
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import kernel.web.ResultObject;
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import project.data.DataService;
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import project.data.model.Trade;
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import project.data.model.TradeEntry;
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import project.item.ItemService;
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import project.item.model.Item;
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/**
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* 获得近期交易记录 页面保持20条，这个只能刷到最新的几条记录。
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*
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*/
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@RestController
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@CrossOrigin
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public class TradeController extends BaseAction {
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@Autowired
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private DataService dataService;
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@Autowired
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private ItemService itemService;
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@RequestMapping("api/hobi!getTrade.action")
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public String getTrade(HttpServletRequest request) {
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ResultObject resultObject = new ResultObject();
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try {
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String symbol = request.getParameter("symbol");
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if (StringUtils.isNullOrEmpty(symbol)) {
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resultObject.setCode("400");
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resultObject.setMsg("[symbol]参数为空");
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return JSON.toJSONString(resultObject);
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}
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// 数据处理
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Trade data = this.dataService.trade(symbol);
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if (data != null) {
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resultObject.setData(revise(data));
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}
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return JSONObject.toJSONString(resultObject);
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} catch (BusinessException e) {
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resultObject.setCode("402");
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resultObject.setMsg(e.getMessage());
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return JSONObject.toJSONString(resultObject);
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} catch (Throwable e) {
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resultObject.setCode("500");
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resultObject.setMsg("服务器错误(500)");
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return JSONObject.toJSONString(resultObject);
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}
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}
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private Map<String, Object> revise(Trade data) {
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Map<String, Object> map = new HashMap<String, Object>();
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map.put("symbol", data.getSymbol());
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map.put("ts", data.getTs());
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Item item = this.itemService.cacheBySymbol(data.getSymbol(), true);
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List<Map<String, Object>> tradeEntry_list = new ArrayList<Map<String, Object>>();
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for (int i = 0; i < data.getData().size(); i++) {
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TradeEntry tradeEntry = data.getData().get(i);
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Map<String, Object> tradeEntry_map = new HashMap<String, Object>();
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tradeEntry_map.put("direction", tradeEntry.getDirection());
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tradeEntry_map.put("ts", tradeEntry.getTs());
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tradeEntry_map.put("current_time", tradeEntry.getCurrent_time());
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if (item.getDecimals() == null || item.getDecimals() < 0) {
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tradeEntry_map.put("price", tradeEntry.getPrice());
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tradeEntry_map.put("amount", tradeEntry.getAmount());
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} else {
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String format = "";
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if (item.getDecimals() == 0) {
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format = "#";
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} else {
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format = "#.";
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for (int j = 0; j < item.getDecimals(); j++) {
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format = format + "#";
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}
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}
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DecimalFormat df = new DecimalFormat(format);
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df.setRoundingMode(RoundingMode.FLOOR);// 向下取整
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tradeEntry_map.put("price", df.format(tradeEntry.getPrice()));
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tradeEntry_map.put("amount", df.format(tradeEntry.getAmount()));
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}
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tradeEntry_list.add(tradeEntry_map);
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}
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map.put("data", tradeEntry_list);
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return map;
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}
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}
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