package com.metal.watch;
import java.io.IOException;
import java.util.Calendar;
import java.util.TimeZone;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.select.Elements;
import com.google.appengine.api.xmpp.JID;
import com.google.appengine.api.xmpp.Message;
import com.google.appengine.api.xmpp.MessageBuilder;
import com.google.appengine.api.xmpp.SendResponse;
import com.google.appengine.api.xmpp.XMPPService;
import com.google.appengine.api.xmpp.XMPPServiceFactory;
@SuppressWarnings("serial")
public class SilverServlet extends HttpServlet {
private static final XMPPService xmpp = XMPPServiceFactory.getXMPPService();
private static final DataKeeper dm = DataKeeperFactory.getInstance();
public void doGet(HttpServletRequest req, HttpServletResponse resp)
throws IOException {
if (dm.isNoaction()) {// 周末不处理
return;
}
String action = (String) req.getParameter("action");
if (action != null && action.equals("init")) {
// 每天7点前清零
dm.setNow(0);
dm.setLow(0);
dm.setHigh(0);
int weekend = Calendar.getInstance(
TimeZone.getTimeZone("Asia/Shanghai")).get(
Calendar.DAY_OF_WEEK);
if (weekend == Calendar.SATURDAY || weekend == Calendar.SUNDAY) {
dm.setNoaction(true);
} else {
dm.setNoaction(false);
}
return;
}
Document doc = null;
try {
doc = Jsoup.connect(Const.ICBC_URL).timeout(5000).get();
} catch (IOException ex) {
resp.getWriter().println(ex.getMessage());
}
if (doc != null) {
float tmpN, tmpH, tmpL;
String msgBody = "";
Elements ele = doc.getElementById("GridView1")
.getElementsContainingOwnText("人民币账户白银").first()
.siblingElements();
tmpN = toFloat(ele.get(3).text());
tmpH = toFloat(ele.get(6).text()) - 0.02f;
tmpL = toFloat(ele.get(7).text()) - 0.02f;
if (action == null || action.equals("")) {
if (dm.getNow() == 0) {// 如果为空，第一次，保存值
dm.setNow(tmpN);
dm.setLow(tmpL);
dm.setHigh(tmpH);
} else {// 比较基准值
float High = dm.getNow() * 1.005f;
float Low = dm.getNow() * 0.995f;
msgBody = "!NOTICE: ";
boolean dataChanged = false;
if (tmpN >= High) {
msgBody += "↑ N:" + tmpN + " > B:" + dm.getNow() + "\n";
dataChanged = true;
}
if (tmpN <= Low) {
msgBody += "↓ N:" + tmpN + " < B:" + dm.getNow() + "\n";
dataChanged = true;
}
if (tmpH > dm.getHigh()) {
msgBody += "N:" +tmpN+
" ↑ H:" + tmpH + " > B:" + dm.getHigh()
+ "\n";
dataChanged = true;
}
if (tmpL < dm.getLow()) {
msgBody += "N:" +tmpN+" ↓ L:" + tmpL + " < B:" + dm.getLow() + "\n";
dataChanged = true;
}
if (dataChanged) {
dm.setNow(tmpN);
dm.setLow(tmpL);
dm.setHigh(tmpH);
sendMsg(msgBody);
}
}
} else if (action.equals("fix")) {
// 定时发送
msgBody = "N:" + tmpN + " H:" + tmpH + " L:" + tmpL;
sendMsg(msgBody);
}
}
}
private float toFloat(String s) {
try {
return Float.parseFloat(s);
} catch (NumberFormatException ex) {
return 0;
}
}
private boolean sendMsg(String msgBody) {
if (msgBody == "") {
return false;
}
JID jid = new JID(Const.EMAIL);
Message msg = new MessageBuilder().withRecipientJids(jid)
.withBody(msgBody).build();
boolean messageSent = false;
if (xmpp.getPresence(jid).isAvailable()) {
SendResponse status = xmpp.sendMessage(msg);
messageSent = (status.getStatusMap().get(jid) == SendResponse.Status.SUCCESS);
}
return messageSent;
}
}