public static List <EarthquakeObj> EarthquakeTrans(object earthquakeEvent, EarthquakeDataSource dataSource,
string startTime, string endTime)
{
EarthquakeObjConverter.eqList.Clear();
EarthquakeObjConverter.startTime = startTime;
EarthquakeObjConverter.endTime = endTime;
if (earthquakeEvent == null)
{
return(null);
}
switch (dataSource)
{
case EarthquakeDataSource.PALERT:
List <Palert> palertEventList = JsonConvert.DeserializeObject <List <Palert> >((string)earthquakeEvent);
foreach (Palert palertEvent in palertEventList)
{
EarthquakeObj eq = palertTrans(palertEvent);
eqList.Add(eq);
}
return(eqList);
case EarthquakeDataSource.CWB:
cwbTrans((string)earthquakeEvent);
return(eqList);
case EarthquakeDataSource.CKAN:
JObject ckanList = JObject.Parse((string)earthquakeEvent);
ckanTrans(ckanList);
return(eqList);
case EarthquakeDataSource.TESIS:
tesisTrans((string)earthquakeEvent);
return(eqList);
default:
break;
}
// DEBUG
return(null);
}
//
// Transform palert object to earthquake object
//
private static EarthquakeObj palertTrans(Palert palertEvent)
{
// The time string format of palert : YYYYMMDDhhmmss
// We only need YYYYMMDDhhmm
// The time format in P-alert is UTC, we need to convert it into GMT+8
string timeString_ = palertEvent.Timestring;
DateTime timeString_dt = new DateTime(int.Parse(timeString_.Substring(0, 4)), int.Parse(timeString_.Substring(4, 2)),
int.Parse(timeString_.Substring(6, 2)), int.Parse(timeString_.Substring(8, 2)),
int.Parse(timeString_.Substring(10, 2)), int.Parse(timeString_.Substring(12, 2)));
// UTC time + 8 hours = GMT+8 (Time zone of Taiwan)
timeString_dt = timeString_dt.AddHours(8);
string timeString = timeString_dt.ToString("yyyyMMddHHmm");
string lat = palertEvent.Lat;
string lng = palertEvent.Lng;
// The unit of depth of palert event is KM too.
string depth = palertEvent.Depth;
string magnitude = palertEvent.Magnitude;
EarthquakeDataSource dataSource = EarthquakeDataSource.PALERT;
// The format of the link of the p-alert data : Domain + Key
// Domain : http://palert.earth.sinica.edu.tw/db/index1.clt2.php?time=
// Key : YYYYMMDDhhmmss
// And the Key is equal to palertEvent.Timestring
string Domain = "http://palert.earth.sinica.edu.tw/db/index1.clt2.php?time=";
string Key = palertEvent.Timestring;
string dataLink = Domain + Key;
EarthquakeObj eq = new EarthquakeObj(timeString, lat, lng, depth, magnitude, dataSource, dataLink);
return(eq);
}
private static void tesisTrans(string tesisList)
{
//
// The response of TESIS stores in tesisList.
// Example : ["992","993","994","995","996","997"];
// This means we need to call another API to get these events
// Example : http://tesis.earth.sinica.edu.tw/common/php/processdatanew.php?firstid=992&secondid=997
// And then we will got a JSON list of earthquakes.
//
// Get rid of symbols like '\', '"', '[', ']'
string pattern = "[\\\"\\[\\]]";
Regex regex = new Regex(pattern);
// tesisList_ will contain all the earthquake event ID
string[] tesisList_ = regex.Replace(tesisList, "").Split(',');
//
// Go to the dataset and take out the earthquake data
// string api_url = "http://tesis.earth.sinica.edu.tw/common/php/processdatanew.php?" + firstid + '&' + secondid;
// firstid = firstid=992
// secondid = secondid=997
//
// This API will output all the earthquake data between id 992 and 997
//
string firstid = "firstid=" + tesisList_[0];
string secondid = "secondid=" + tesisList_[tesisList_.Length - 1];
string api_url = "http://tesis.earth.sinica.edu.tw/common/php/processdatanew.php?" + firstid + '&' + secondid;
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(api_url);
request.Method = WebRequestMethods.Http.Get;
request.ContentType = "application/json";
using (var response = (HttpWebResponse)request.GetResponse())
{
if (response.StatusCode == HttpStatusCode.OK)
{
using (var stream = response.GetResponseStream())
using (var reader = new StreamReader(stream))
{
string data = reader.ReadToEnd();
JObject datalist = JObject.Parse(data);
IList <JToken> datalist_JSON = datalist["earthquakes"].Children().ToList();
foreach (JToken dataResult in datalist_JSON)
{
string eqData = dataResult["cwb"].ToString();
Tesis tesis = JsonConvert.DeserializeObject <Tesis>(eqData.ToString());
// The time zone of tesis.timestring is GMT + 0
// We need to add 8 hours to match the time zone of Taiwan (GMT + 8)
DateTime tesisDt = new DateTime(int.Parse(tesis.timestring.Substring(0, 4)), int.Parse(tesis.timestring.Substring(4, 2)), int.Parse(tesis.timestring.Substring(6, 2)),
int.Parse(tesis.timestring.Substring(8, 2)), int.Parse(tesis.timestring.Substring(10, 2)), int.Parse(tesis.timestring.Substring(12, 2)));
tesisDt = tesisDt.AddHours(8);
string timeString = tesisDt.ToString("yyyyMMddHHmm");
EarthquakeObj eq = new EarthquakeObj(timeString, tesis.Latitude, tesis.Longitude, tesis.Depth, tesis.ML, EarthquakeDataSource.TESIS,
"http://tesis.earth.sinica.edu.tw/showDetail.php?date=%22" + tesis.Date + "%22&time=%22" + tesis.Time + "%22");
eqList.Add(eq);
}
reader.Close();
reader.Dispose();
}
}
}
}
//
// Transform CKAN object to earthquake object
//
private static void ckanTrans(JObject ckanlist)
{
IList <JToken> results = ckanlist["result"]["packages"].Children().ToList();
IList <Ckan> ckanList = new List <Ckan>();
foreach (JToken result in results)
{
bool HasDetailFile = false;
// The JSON file name format is equal to timestring
string name = result["name"].ToString();
string[] dateParse = (startTime + '&' + endTime).Split('&', '-');
// Find the Dataset
if (int.Parse(name.Substring(0, 8)) >= int.Parse(dateParse[0] + dateParse[1] + dateParse[2]) &&
int.Parse(name.Substring(0, 8)) <= int.Parse(dateParse[3] + dateParse[4] + dateParse[5]))
{
// Go to the dataset and take out the earthquake data
//string dataset_url = "http://140.109.17.71/api/3/action/package_show?id=" + name;
string dataset_url = ConstCkan.CkanAPIPrefix + "/package_show?id=" + name;
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(dataset_url);
request.Method = WebRequestMethods.Http.Get;
request.ContentType = "application/json";
using (var response = (HttpWebResponse)request.GetResponse())
{
if (response.StatusCode == HttpStatusCode.OK)
{
using (var stream = response.GetResponseStream())
using (var reader = new StreamReader(stream))
{
string data = reader.ReadToEnd();
JObject datalist = JObject.Parse(data);
IList <JToken> datalist_JSON = datalist["result"]["resources"].Children().ToList();
foreach (JToken dataResult in datalist_JSON)
{
string dataName = dataResult["name"].ToString();
if (dataName == name)
{
HttpWebRequest request2 = (HttpWebRequest)WebRequest.Create(dataResult["url"].ToString());
request2.Method = WebRequestMethods.Http.Get;
request2.ContentType = "application/json";
using (var response2 = (HttpWebResponse)request2.GetResponse())
{
if (response2.StatusCode == HttpStatusCode.OK)
{
using (var stream2 = response2.GetResponseStream())
using (var reader2 = new StreamReader(stream2))
{
string data2 = reader2.ReadToEnd();
Ckan ckan = JsonConvert.DeserializeObject <Ckan>(data2.ToString());
EarthquakeObj eq = new EarthquakeObj(ckan.Timestring, ckan.Lat, ckan.Lng, ckan.Depth, ckan.Magnitude, EarthquakeDataSource.CKAN, "http://" + ConstCkan.CkanIP + "/dataset/" + name);
eqList.Add(eq);
HasDetailFile = true;
break;
}
}
}
}
}
if (!HasDetailFile)
{
EarthquakeObj eq = new EarthquakeObj(name, "-1", "-1", "-1", "-1", EarthquakeDataSource.CKAN, "http://" + ConstCkan.CkanIP + "/dataset/" + name);
eqList.Add(eq);
}
reader.Close();
reader.Dispose();
}
}
}
}
}
}
//
// Transform CWB typhoon data to earthquake object
//
private static void cwbTrans(string htmlData)
{
bool datalistFound = false;
bool firstRowSkip = false;
string[] data = htmlData.Split('\n');
string timeString;
string lat;
string lng;
string depth;
string magnitude;
string dataLink;
for (int i = 0; i < data.Length; i++)
{
// First, find the table datalist4
if (data[i].Contains("datalist4"))
{
datalistFound = true;
continue;
}
// Skip the first row of datalist4
if (datalistFound && !firstRowSkip)
{
if (data[i].Contains("<tr>"))
{
firstRowSkip = true;
continue;
}
}
// Every other rows are the data we need
if (datalistFound && firstRowSkip)
{
// The data in the row is like :
// ID, Time, Lat, Lng, Magnitude, Depth, Central
//
// And the HTML of the table row is like :
// <td>
// <a href="....."> THE DATA WE NEED </a>
// </td><td>
// <a href="....."> THE DATA WE NEED 2</a>
// ...
// </tr><tr>
if (data[i].Contains("<tr>"))
{
i++; // go to next line
// This line is <td>
// Skip.
i++;
// <a href="?ItemId=49&fileString=2016030119411338">EARTHQUAKE ID</a>
// We can get timestring here.
// We can also get data link here.
string[] timeStringtmp = data[i].Split(new char[] { '=', '\'' });
timeString = timeStringtmp[4].Substring(0, 12);
dataLink = "http://scweb.cwb.gov.tw/GraphicContent.aspx?ItemId=49&fileString=" + timeStringtmp[4];
i++;
// </td><td>
i++;
// Time, but we already got time string.
// Skip them.
//<a href="xxx">X月X日X時X分</a>
//</td><td>
i = i + 2;
// Longitude
// <a href="xxx">123.4</a>
string[] tmp = data[i].Split(new char[] { '>', '<' });
lng = tmp[2];
i++;
//</td><td>
i++;
// Latitude
// Same as above.
tmp = data[i].Split(new char[] { '>', '<' });
lat = tmp[2];
i = i + 2;
// Magnitude
tmp = data[i].Split(new char[] { '>', '<' });
magnitude = tmp[2];
i = i + 2;
// Depth
tmp = data[i].Split(new char[] { '>', '<' });
depth = tmp[2];
EarthquakeObj eq = new EarthquakeObj(timeString, lat, lng, depth, magnitude, EarthquakeDataSource.CWB, dataLink);
eqList.Add(eq);
continue;
}
else if (data[i].Contains("</table>"))
{
break;
}
}
}
}
