private static void DownloadImages(Cam cam)
{
int solsProcessed = 0;
int imagesProcessed = 0;
int imagesDownloaded = 0;
if (basePage == null)
{
Console.Clear();
Console.WriteLine(String.Format("Attempting to contact {0}", MslCamConstants.RawImageUrl));
HtmlWeb baseWeb = new HtmlWeb();
basePage = TryLoadDoc(MslCamConstants.RawImageUrl, baseWeb);
}
HtmlNodeCollection baseContainers = basePage.DocumentNode.SelectNodes(@"//div[@class='image_set_container']");
foreach (HtmlNode container in baseContainers)
{
HtmlNodeCollection baseSolLinks = container.SelectNodes(@".//a[starts-with(@href,'./?s=')]");
if (container.ChildNodes[1].InnerText.Contains(cam.CamContainer))
{
Console.Clear();
Console.WriteLine(String.Format("Attempting to download new images for {0}...", cam.CamName));
Parallel.ForEach(baseSolLinks, solLink =>
{
if (solLink.InnerHtml.StartsWith("Sol"))
{
string[] solTitles = solLink.InnerHtml.Split(new char[] { '\n' });
int solNumber = int.Parse(solTitles[1]);
string solUrl = solLink.Attributes["href"].Value.Substring(1);
try
{
HtmlWeb solWeb = new HtmlWeb();
HtmlDocument solDoc;
solDoc = TryLoadDoc(String.Format("{0}{1}", MslCamConstants.RawImageUrl, solUrl), solWeb);
HtmlNode solContent = solDoc.DocumentNode.SelectSingleNode(@"//td[@class='pageContent']");
HtmlNodeCollection solTables = solContent.SelectNodes(@".//table");
List<HtmlNode> solContainers = new List<HtmlNode>();
HtmlNode solStrong = solDoc.DocumentNode.SelectSingleNode(@"/html[1]/body[1]/div[1]/div[1]/div[1]/div[3]/table[1]/tr[2]/td[1]/div[2]/table[1]/tr[4]");
if (solStrong != null && solStrong.InnerText.Contains(MslCamConstants.FullDataProductName))
{
foreach (HtmlNode tr in solStrong.ParentNode.ChildNodes)
{
if (!tr.InnerText.StartsWith(MslCamConstants.FullDataProductName) && tr.InnerText.Contains("Data Product"))
break;
HtmlNodeCollection imgDataDivs = tr.SelectNodes(@".//div[@class='RawImageCaption']");
if (imgDataDivs != null)
solContainers.AddRange(imgDataDivs.ToList());
}
}
if (solContainers != null)
Parallel.ForEach(solContainers, solImage =>
{
string[] imgTitles = solImage.InnerText.Split(new char[] { '\n', '&' }, StringSplitOptions.RemoveEmptyEntries);
string imgCamName = imgTitles[0];
DateTime imgTimeStamp = DateTime.Parse(imgTitles[1]);
if (imgCamName.Contains(cam.CamName))
{
try
{
using (MSLScraperEntities mslContext = new MSLScraperEntities())
{
if (mslContext.SolImageData.Count(x => x.Cam == imgCamName && x.Sol == solNumber && x.TimeStamp == imgTimeStamp) == 0)
{
HtmlNode imgFullLinkNode = solDoc.DocumentNode.SelectSingleNode(solImage.XPath + @"/nobr[1]/div[1]/a[1]");
string imgFullLinkUrl = imgFullLinkNode.Attributes["href"].Value;
SolImageData newImageData = new SolImageData();
newImageData.Sol = solNumber;
newImageData.Cam = imgCamName;
newImageData.TimeStamp = imgTimeStamp;
newImageData.ImageUrl = imgFullLinkUrl;
Image bitmap = TryLoadImage(imgFullLinkUrl);
if (bitmap != null)
{
using (MemoryStream stream = new MemoryStream())
{
bitmap.Save(stream, System.Drawing.Imaging.ImageFormat.Bmp);
bitmap.Dispose();
stream.Position = 0;
byte[] data = new byte[stream.Length];
stream.Read(data, 0, (int)stream.Length);
newImageData.ImageData = data;
}
if (mslContext.SolImageData.Count(x => x.Cam == newImageData.Cam && x.Sol == newImageData.Sol && x.TimeStamp == newImageData.TimeStamp) == 0)
{
mslContext.SolImageData.Add(newImageData);
mslContext.SaveChanges();
imagesDownloaded++;
WriteDownloadProgress(cam, solsProcessed, imagesProcessed, imagesDownloaded);
}
}
}
}
}
catch (Exception ex)
{
string errorMessage = String.Format("ERROR while downloading {0} Sol {1} Timestamp {2}", cam.CamName, solNumber, imgTitles[1]);
Console.WriteLine(String.Format("{0}: {1}", errorMessage, ex.Message));
errorCollection.Enqueue(new Exception(errorMessage, ex));
}
imagesProcessed++;
WriteDownloadProgress(cam, solsProcessed, imagesProcessed, imagesDownloaded);
}
});
}
catch (Exception ex)
{
string errorMessage = String.Format("ERROR while downloading {0} Sol {1} images", cam.CamName, solNumber);
Console.WriteLine(String.Format("{0}: {1}", errorMessage, ex.Message));
errorCollection.Enqueue(new Exception(errorMessage, ex));
}
solsProcessed++;
WriteDownloadProgress(cam, solsProcessed, imagesProcessed, imagesDownloaded);
}
});
}
}
}
private static void DownloadImages(Cam cam)
{
int solsProcessed = 0;
int imagesProcessed = 0;
int imagesDownloaded = 0;
if (basePage == null)
{
Console.Clear();
Console.WriteLine(String.Format("Attempting to contact {0}", MslCamConstants.RawImageUrl));
HtmlWeb baseWeb = new HtmlWeb();
basePage = TryLoadDoc(MslCamConstants.RawImageUrl, baseWeb);
}
HtmlNodeCollection baseContainers = basePage.DocumentNode.SelectNodes(@"//div[@class='image_set_container']");
foreach (HtmlNode container in baseContainers)
{
HtmlNodeCollection baseSolLinks = container.SelectNodes(@".//a[starts-with(@href,'./?s=')]");
if (container.ChildNodes[1].InnerText.Contains(cam.CamContainer))
{
Console.Clear();
Console.WriteLine(String.Format("Attempting to download new images for {0}...", cam.CamName));
Parallel.ForEach(baseSolLinks, solLink =>
{
if (solLink.InnerHtml.StartsWith("Sol"))
{
string[] solTitles = solLink.InnerHtml.Split(new char[] { '\n' });
int solNumber = int.Parse(solTitles[1]);
string solUrl = solLink.Attributes["href"].Value.Substring(1);
try
{
HtmlWeb solWeb = new HtmlWeb();
HtmlDocument solDoc;
solDoc = TryLoadDoc(String.Format("{0}{1}", MslCamConstants.RawImageUrl, solUrl), solWeb);
HtmlNode solContent = solDoc.DocumentNode.SelectSingleNode(@"//td[@class='pageContent']");
HtmlNodeCollection solTables = solContent.SelectNodes(@".//table");
List <HtmlNode> solContainers = new List <HtmlNode>();
HtmlNode solStrong = solDoc.DocumentNode.SelectSingleNode(@"/html[1]/body[1]/div[1]/div[1]/div[1]/div[3]/table[1]/tr[2]/td[1]/div[2]/table[1]/tr[4]");
if (solStrong != null && solStrong.InnerText.Contains(MslCamConstants.FullDataProductName))
{
foreach (HtmlNode tr in solStrong.ParentNode.ChildNodes)
{
if (!tr.InnerText.StartsWith(MslCamConstants.FullDataProductName) && tr.InnerText.Contains("Data Product"))
{
break;
}
HtmlNodeCollection imgDataDivs = tr.SelectNodes(@".//div[@class='RawImageCaption']");
if (imgDataDivs != null)
{
solContainers.AddRange(imgDataDivs.ToList());
}
}
}
if (solContainers != null)
{
Parallel.ForEach(solContainers, solImage =>
{
string[] imgTitles = solImage.InnerText.Split(new char[] { '\n', '&' }, StringSplitOptions.RemoveEmptyEntries);
string imgCamName = imgTitles[0];
DateTime imgTimeStamp = DateTime.Parse(imgTitles[1]);
if (imgCamName.Contains(cam.CamName))
{
try
{
using (MSLScraperEntities mslContext = new MSLScraperEntities())
{
if (mslContext.SolImageData.Count(x => x.Cam == imgCamName && x.Sol == solNumber && x.TimeStamp == imgTimeStamp) == 0)
{
HtmlNode imgFullLinkNode = solDoc.DocumentNode.SelectSingleNode(solImage.XPath + @"/nobr[1]/div[1]/a[1]");
string imgFullLinkUrl = imgFullLinkNode.Attributes["href"].Value;
SolImageData newImageData = new SolImageData();
newImageData.Sol = solNumber;
newImageData.Cam = imgCamName;
newImageData.TimeStamp = imgTimeStamp;
newImageData.ImageUrl = imgFullLinkUrl;
Image bitmap = TryLoadImage(imgFullLinkUrl);
if (bitmap != null)
{
using (MemoryStream stream = new MemoryStream())
{
bitmap.Save(stream, System.Drawing.Imaging.ImageFormat.Bmp);
bitmap.Dispose();
stream.Position = 0;
byte[] data = new byte[stream.Length];
stream.Read(data, 0, (int)stream.Length);
newImageData.ImageData = data;
}
if (mslContext.SolImageData.Count(x => x.Cam == newImageData.Cam && x.Sol == newImageData.Sol && x.TimeStamp == newImageData.TimeStamp) == 0)
{
mslContext.SolImageData.Add(newImageData);
mslContext.SaveChanges();
imagesDownloaded++;
WriteDownloadProgress(cam, solsProcessed, imagesProcessed, imagesDownloaded);
}
}
}
}
}
catch (Exception ex)
{
string errorMessage = String.Format("ERROR while downloading {0} Sol {1} Timestamp {2}", cam.CamName, solNumber, imgTitles[1]);
Console.WriteLine(String.Format("{0}: {1}", errorMessage, ex.Message));
errorCollection.Enqueue(new Exception(errorMessage, ex));
}
imagesProcessed++;
WriteDownloadProgress(cam, solsProcessed, imagesProcessed, imagesDownloaded);
}
});
}
}
catch (Exception ex)
{
string errorMessage = String.Format("ERROR while downloading {0} Sol {1} images", cam.CamName, solNumber);
Console.WriteLine(String.Format("{0}: {1}", errorMessage, ex.Message));
errorCollection.Enqueue(new Exception(errorMessage, ex));
}
solsProcessed++;
WriteDownloadProgress(cam, solsProcessed, imagesProcessed, imagesDownloaded);
}
});
}
}
}
