public GeoCoderStatusCode GetPlacemarksByKeywords(string keywords, string region, string rectangle,
QueryProgressDelegate queryProgressEvent, out List <Placemark> placemarkList, ref int count)
{
this.succeedCount = 0;
placemarkList = this.GetPlacemarksByKeywords(keywords, region, rectangle, 1, queryProgressEvent, ref count);
return(GeoCoderStatusCode.G_GEO_SUCCESS);
}
internal Task SubmitQueryAsync(Query query,
QueryProgressDelegate queryProgressDelegate,
CancellationToken cancellationToken = default(CancellationToken))
{
if (query == null)
{
throw new ArgumentNullException(nameof(query));
}
return(Task.Run(() =>
{
if (cancellationToken.IsCancellationRequested)
{
return;
}
var componentFilter = query.ComponentFilter.Count > 0
? (IReadOnlyComponentFilter) new ReadOnlyComponentFilter(query.ComponentFilter)
: FullAccessComponentFilter.Instance;
using (var e = volatileDatabaseItems.GetEnumerator(cancellationToken))
{
foreach (var entity in e.AsEnumerable().Where(i => i.HasComponents(query.ComponentFilter)))
{
if (cancellationToken.IsCancellationRequested)
{
return;
}
var readOnlyEntity = entity.AsReadOnly(componentFilter);
if (!query.Filter(readOnlyEntity, QueryHandler))
{
continue;
}
queryProgressDelegate?.Invoke(new QueryResult(readOnlyEntity));
}
}
}, cancellationToken));
}
private List <Placemark> GetPlacemarksByKeywords(string keywords, string region, string rectangle,
int pageIndex, QueryProgressDelegate queryProgressEvent, ref int totalCount)
{
List <Placemark> list = new List <Placemark>();
int pageSize = 50;
string keyWordUrlEncode = HttpUtility.UrlEncode(keywords);
string format = "http://restapi.amap.com/v3/place/text?&keywords={0}&city={1}&key={2}&output=json&offset={3}&page={4}";
//http://restapi.amap.com/v3/place/text?&keywords=%E5%8C%97%E4%BA%AC%E5%A4%A7%E5%AD%A6&city=beijing&output=json&offset=5&page=1&key=26144cb5dbe74ea6c1410777feb646de&extensions=base
if (!string.IsNullOrEmpty(region))
{
format = string.Format(format, new object[] { keyWordUrlEncode, HttpUtility.UrlEncode(region), KEY, pageSize, pageIndex });
}
//Get Cache Json Result if exist
//string cacheUrl = string.Format("http://restapi.amap.com/v3/place/text/{0}/{1}/{2}/{3}", new object[] { keyWordUrlEncode, HttpUtility.UrlEncode(region), pageIndex, pageSize });
//string cacheResult = Singleton<Cache>.Instance.GetContent(cacheUrl, CacheType.UrlCache, TimeSpan.FromHours(360.0));
//if (string.IsNullOrEmpty(cacheResult))
//{
// cacheResult = HttpUtil.RequestByJSON(format, "get", "");
// if (!string.IsNullOrEmpty(cacheResult))
// {
// Singleton<Cache>.Instance.SaveContent(cacheUrl, CacheType.UrlCache, cacheResult);
// }
//}
//if (string.IsNullOrEmpty(cacheResult))
//{
// return list;
//}
try
{
string cacheResult = HttpUtil.GetData(format);
JObject jsonResult = JObject.Parse(cacheResult);
string info = (string)jsonResult["info"];
if (info == "OK")
{
if (pageIndex == 1)
{
string countStr = (string)jsonResult["count"];
totalCount = int.Parse(countStr);
}
if (totalCount <= 0)
{
return(list);
}
JArray results = (JArray)jsonResult["pois"];
if (results != null && results.Count > 0)
{
for (int i = 0; i < results.Count; ++i)
{
JObject obj = results[i] as JObject;
string name = obj["name"].ToString();
string address = obj["address"].ToString();
string location = obj["location"].ToString();
string[] points = location.Split(',');
if (points != null && points.Length == 2)
{
double lat = double.Parse(points[1]);
double lng = double.Parse(points[0]);
Placemark item = new Placemark(address);
item.Point = new PointLatLng(lat, lng);
item.Name = name;
//item.ProvinceName = obj["pname"].ToString();
//item.CityName = obj["cityname"].ToString();
//item.Category = obj["type"].ToString();
list.Add(item);
++this.succeedCount;
if (queryProgressEvent != null)
{
queryProgressEvent((long)this.succeedCount, (long)totalCount);
}
}
}
}
int allPageNum = (int)Math.Ceiling((double)(((double)totalCount) / ((double)pageSize)));
if (pageIndex < allPageNum)
{
list.AddRange(this.GetPlacemarksByKeywords(keywords, region, rectangle, pageIndex + 1, queryProgressEvent, ref totalCount));
}
}
}
catch (Exception ex)
{
log.Warn(ex.Message);
}
return(list);
}
private List <Placemark> GetPlacemarksByKeywords(string keywords, string region, string rectangle,
int pageIndex, QueryProgressDelegate queryProgressEvent, ref int totalCount)
{
List <Placemark> list = new List <Placemark>();
int pageSize = 20;
string keyWordUrlEncode = HttpUtility.UrlEncode(keywords);
string format = "http://api.map.baidu.com/place/v2/search?q={0}®ion={1}&output=json&ak={2}&page_size={3}&page_num={4}&scope=1";
//"http://api.map.baidu.com/place/v2/search?ak=您的密钥&output=json&query=%E9%93%B6%E8%A1%8C&page_size=10&page_num=0&scope=1®ion=%E5%8C%97%E4%BA%AC"
if (!string.IsNullOrEmpty(region))
{
format = string.Format(format, new object[] { keyWordUrlEncode, HttpUtility.UrlEncode(region), KEY, pageSize, pageIndex });
}
//Get Cache Json Result if exist
//string cacheUrl = string.Format("http://api.map.baidu.com/place/v2/search/{0}/{1}/{2}/{3}", new object[] { keyWordUrlEncode, HttpUtility.UrlEncode(region), pageIndex, pageSize });
//string cacheResult = Singleton<Cache>.Instance.GetContent(cacheUrl, CacheType.UrlCache, TimeSpan.FromHours(360.0));
//if (string.IsNullOrEmpty(cacheResult))
//{
// cacheResult = HttpUtil.GetData(format);
// if (!string.IsNullOrEmpty(cacheResult))
// {
// Singleton<Cache>.Instance.SaveContent(cacheUrl, CacheType.UrlCache, cacheResult);
// }
//}
//if (string.IsNullOrEmpty(cacheResult))
//{
// return list;
//}
try
{
string cacheResult = HttpUtil.GetData(format);
JObject jsonResult = JObject.Parse(cacheResult);
string message = (string)jsonResult["message"];
if (message == "ok")
{
if (pageIndex == 0)
{
totalCount = int.Parse((string)jsonResult["total"]);
}
if (totalCount <= 0)
{
return(list);
}
JArray results = (JArray)jsonResult["results"];
if (results != null && results.Count > 0)
{
for (int i = 0; i < results.Count; ++i)
{
JObject obj = results[i] as JObject;
string name = obj["name"].ToString();
string address = obj["address"].ToString();
double lat = double.Parse(obj["location"]["lat"].ToString());
double lng = double.Parse(obj["location"]["lng"].ToString());
Placemark item = new Placemark(address);
item.Point = new PointLatLng(lat, lng);
item.Name = name;
list.Add(item);
++this.succeedCount;
if (queryProgressEvent != null)
{
queryProgressEvent((long)this.succeedCount, (long)totalCount);
}
}
}
int allPageNum = (int)Math.Ceiling((double)(((double)totalCount) / ((double)pageSize)));
if (pageIndex < allPageNum)
{
list.AddRange(this.GetPlacemarksByKeywords(keywords, region, rectangle, pageIndex + 1, queryProgressEvent, ref totalCount));
}
}
}
catch (Exception ex)
{
log.Warn(ex.Message);
}
return(list);
}
private List <Placemark> GetPlacemarksByKeywords(string keywords, string region, string rectangle,
string nearby, int pageIndex, QueryProgressDelegate queryProgressEvent, ref int count)
{
List <Placemark> list = new List <Placemark>();
int pageSize = 20;
string keyWordUrlEncode = HttpUtility.UrlEncode(keywords);
string format = "http://apis.map.qq.com/ws/place/v1/search?keyword={0}&boundary={5}({1})&page_size={2}&page_index={3}&key={4}";
if (!string.IsNullOrEmpty(region))
{
format = string.Format(format, new object[] { keyWordUrlEncode, HttpUtility.UrlEncode(region) + ",0", pageSize, pageIndex, KEY, "region" });
}
else if (!string.IsNullOrEmpty(rectangle))
{
format = string.Format(format, new object[] { keyWordUrlEncode, rectangle, pageSize, pageIndex, KEY, "rectangle" });
}
else if (!string.IsNullOrEmpty(nearby))
{
format = string.Format(format, new object[] { keyWordUrlEncode, nearby, pageSize, pageIndex, KEY, "nearby" });
}
//string cacheUrl = string.Format("http://apis.map.qq.com/{0}/{1}/{2}/{3}/{4}", new object[] { keyWordUrlEncode, HttpUtility.UrlEncode(region), rectangle, nearby, pageIndex });
//string cacheResult = Singleton<Cache>.Instance.GetContent(cacheUrl, CacheType.UrlCache, TimeSpan.FromHours(360.0));
//if (string.IsNullOrEmpty(cacheResult))
//{
// cacheResult = HttpUtil.GetData(format, "utf-8", "get", "", "text/htm");
// Thread.Sleep(200);
// if (!string.IsNullOrEmpty(cacheResult))
// {
// Singleton<Cache>.Instance.SaveContent(cacheUrl, CacheType.UrlCache, cacheResult);
// }
//}
//if (string.IsNullOrEmpty(cacheResult))
//{
// return list;
//}
string cacheResult = HttpUtil.GetData(format);
JObject result = JObject.Parse(cacheResult);
string status = (string)result["status"];
string message = (string)result["message"];
if (message == "query ok")
{
if (pageIndex == 1)
{
int.TryParse(result["count"].ToString(), out count);
}
if (count <= 0)
{
return(list);
}
JArray data = (JArray)result["data"];
if (data != null && data.Count >= 0)
{
for (int i = 0; i < data.Count; ++i)
{
JObject obj = data[i] as JObject;
string name = obj["title"].ToString();
string address = obj["address"].ToString();
double lat = double.Parse(obj["location"]["lat"].ToString());
double lng = double.Parse(obj["location"]["lng"].ToString());
Placemark item = new Placemark(address);
item.Point = new PointLatLng(lat, lng);
item.Name = name;
list.Add(item);
++this.succeedCount;
if (queryProgressEvent != null)
{
queryProgressEvent((long)this.succeedCount, (long)count);
}
}
}
int allPageNum = (int)Math.Ceiling((double)(((double)count) / ((double)pageSize)));
if (pageIndex < allPageNum)
{
list.AddRange(this.GetPlacemarksByKeywords(keywords, region, rectangle, nearby, pageIndex + 1, queryProgressEvent, ref count));
}
}
return(list);
}
