fix BulkSatDownloadApplication: fire a number of calls awaiting satellite task, until number of images returned no longer increases
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334d890f13
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@ -25,6 +25,7 @@ namespace FarmmapsBulkSatDownload
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private readonly GeneralService _generalService;
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public const string settingsfile = "Settings.json";
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public const int firstAvailableYear = 2017;
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private Settings _settings;
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public BulkSatDownloadApplication(ILogger<BulkSatDownloadApplication> logger, FarmmapsApiService farmmapsApiService,
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@ -199,6 +200,27 @@ namespace FarmmapsBulkSatDownload
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private async Task Process(List<UserRoot> roots, BulkSatDownloadInput input)
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{
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//PO20220311: first time a call is made to download satellite images or statistics, an empty list is returned
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//If we wait a bit longer, e.g. 10 secs, then e.g. a list of 3 images may be returned
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//If we wait still longer, maybe 4 images.
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//The solution implemented below is to fire calls as long as the number of images returned keeps increasing
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//While in between each call, sleep for sleepSecs
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//Continue this until the number no longer increases or the maximum number of calls has been reached
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//If you set sleepSecs to a very low value, e.g. 5 secs, then after 1 call you might get images and after 2nd call still zero images.
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//to be on the safe side, better bit higher value.
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//Just accept this may take a while, have a coffee, we suggest sleepSecs = 30;
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int sleepSecs = 30;
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int callCntMax = 4 * 60 / sleepSecs; //4*60 = max 4 minutes
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//For example we may set: "sleepSecs = 10;" and "callCntMax = 24;" and following result:
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//Call no: 1. Giving FarmMaps 10 seconds to get SatelliteItems...
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//Call no: 1: Received 2 images
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//Call no: 2. Giving FarmMaps 10 seconds to get SatelliteItems...
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//Call no: 2: Received 7 images
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//Call no: 3. Giving FarmMaps 10 seconds to get SatelliteItems...
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//Call no: 3: Received 7 images
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//And the firing of calls would stop because the number of images returned is no longer increasing
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//In the worst case, this could would lead to a total sleeping period of "sleepSecsSum = sleepSecs * callCntMax" seconds. After that we give up
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string cropfielditemcode;
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string satellitetaskcode;
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Item cropfieldItem;
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@ -230,6 +252,10 @@ namespace FarmmapsBulkSatDownload
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DateTime lastDownloadedSatelliteDate = input.lastdownloadedimagedate;
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cropfielditemcode = input.cropfielditemcode;
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satellitetaskcode = input.satellitetaskcode;
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int satelliteItemsCropYearCntPrev;
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int satelliteItemsCropYearCnt;
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int callCnt;
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int sleepSecsSum;
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LoadSettings(settingsfile);
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@ -317,23 +343,80 @@ namespace FarmmapsBulkSatDownload
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// TODO also log satellitetaskcode to settings, how?
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// SaveSettings(settingsfile);
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// Getting satellite items
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_logger.LogInformation(string.Format($"Running FindSatelliteItems for cropfieldItem.Code '{cropfieldItem.Code}', SatelliteTaskCode '{satellitetaskcode}'"));
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satelliteItemsCropYear = await _generalService.FindSatelliteItems(cropfieldItem, satellitetaskcode);
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// Getting satellite items. Only for years for which available
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satelliteItemsCropYearCntPrev = 0;
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satelliteItemsCropYearCnt = 0;
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sleepSecsSum = 0;
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satelliteItemsCropYear = null;
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if (cropYear >= firstAvailableYear && cropYear <= DateTime.Now.Year)
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{
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_logger.LogInformation(string.Format($"Running FindSatelliteItems for cropfieldItem.Code '{cropfieldItem.Code}', SatelliteTaskCode '{satellitetaskcode}'"));
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//Call first time
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callCnt = 1;
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//if callCntMax == 0 then don't sleep
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//if callCntMax = 1 then sleep first 1x
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if (callCntMax > 0)
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{
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_logger.LogInformation($"Call no: {callCnt}. Giving FarmMaps {sleepSecs} seconds to get SatelliteItems...");
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System.Threading.Thread.Sleep(1000 * sleepSecs);
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sleepSecsSum = sleepSecsSum + sleepSecs;
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}
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satelliteItemsCropYear = await _generalService.FindSatelliteItems(cropfieldItem, satellitetaskcode);
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satelliteItemsCropYearCntPrev = satelliteItemsCropYear.Count;
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_logger.LogInformation($"Call no: {callCnt}. Received {satelliteItemsCropYearCntPrev} images");
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callCnt++;
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satelliteItemsCropYearCnt = satelliteItemsCropYearCntPrev;
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//if callCntMax > 1 then sleep untill (1) no more increase in number of images received OR (2) maximum number of calls reached
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if (callCntMax > 1)
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{
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//Call second time
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_logger.LogInformation($"Call no: {callCnt}. Giving FarmMaps another {sleepSecs} seconds to get SatelliteItems...");
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System.Threading.Thread.Sleep(1000 * sleepSecs);
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satelliteItemsCropYear = await _generalService.FindSatelliteItems(cropfieldItem, satellitetaskcode);
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satelliteItemsCropYearCnt = satelliteItemsCropYear.Count;
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_logger.LogInformation($"Call no: {callCnt}. Received {satelliteItemsCropYearCnt} images");
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sleepSecsSum = sleepSecsSum + sleepSecs;
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//As long as there is progress, keep calling
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callCnt++;
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while (callCnt <= callCntMax && (satelliteItemsCropYearCnt == 0 || satelliteItemsCropYearCnt > satelliteItemsCropYearCntPrev))
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{
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_logger.LogInformation($"Surprise! The longer we wait, the more images we get. Sleep and call once more");
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satelliteItemsCropYearCntPrev = satelliteItemsCropYearCnt;
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_logger.LogInformation($"Call no: {callCnt} (max: {callCntMax}). Giving FarmMaps another {sleepSecs} seconds to get SatelliteItems...");
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System.Threading.Thread.Sleep(1000 * sleepSecs);
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satelliteItemsCropYear = await _generalService.FindSatelliteItems(cropfieldItem, satellitetaskcode);
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satelliteItemsCropYearCnt = satelliteItemsCropYear.Count;
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_logger.LogInformation($"Call no: {callCnt}. Received {satelliteItemsCropYearCnt} images");
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callCnt++;
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sleepSecsSum = sleepSecsSum + sleepSecs;
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}
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}
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}
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else
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{
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_logger.LogWarning($"// FarmmapsBulkSatDownload: crop year {cropYear} is out of bounds. No stats will be written!");
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}
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if (satelliteItemsCropYearCnt == 0)
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{
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_logger.LogWarning($"// FarmmapsBulkSatDownload: after calling one or more times and " +
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$"sleeping in total {sleepSecsSum} seconds, still no images found. " +
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$"Please check your settings for parameters callCntMax and sleepSecs in FarmmapsBulkSatDownload.cs or contact FarmMaps");
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}
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// Checking if satellite items found
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satelliteItemsAvailable = true;
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if (satelliteItemsCropYear == null)
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{
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satelliteItemsAvailable = false;
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_logger.LogInformation($"No satellite tiffs found for fieldName '{fieldName}', cropYear {cropYear}, cropfielditemcode '{cropfielditemcode}'");
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_logger.LogInformation($"// FarmmapsBulkSatDownload: No satellite tiffs found for fieldName '{fieldName}', cropYear {cropYear}, cropfielditemcode '{cropfielditemcode}'");
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}
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else
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{
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if (satelliteItemsCropYear.Count == 0)
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{
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satelliteItemsAvailable = false;
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_logger.LogInformation($"No satellite tiffs found for fieldName '{fieldName}', cropYear {cropYear}, cropfielditemcode '{cropfielditemcode}'");
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_logger.LogInformation($"// FarmmapsBulkSatDownload: No satellite tiffs found for fieldName '{fieldName}', cropYear {cropYear}, cropfielditemcode '{cropfielditemcode}'");
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}
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}
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@ -343,10 +426,10 @@ namespace FarmmapsBulkSatDownload
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// Download statistics to a single csv file
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if (satelliteItemsAvailable && downloadFolder != null && fileNameStats != null)
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{
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// Write statistics for all images for all fieldNane and cropYear to a single csv file, fileNameStats
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// Write statistics for all images for all fieldName and cropYear to a single csv file, fileNameStats
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_logger.LogInformation($"Downloading stats for field '{fieldName}' in cropyear {cropYear} to {fileNameStats}");
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string downloadedStats = await _generalService.DownloadSatelliteStats(satelliteItemsCropYear, fieldName, satelliteBands, downloadFolder);
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// Add contents of this csv file to thee single large csv file
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// Add contents of this csv file to the single large csv file
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var retainedLines = File.ReadAllLines(downloadedStats).Skip(1);
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File.AppendAllLines(fileNameStats, retainedLines);
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File.Delete(downloadedStats);
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@ -1,9 +1,34 @@
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[
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{
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"fieldName": "BvdT FieldlabG92", // FarmMaps minimum needs are: fieldName, cropYear & geometryJson
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"cropYear": 2022, // for testing same field last year
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"fieldName": "MyField_1", // FarmMaps minimum needs are: fieldName, cropYear & geometryJson
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"cropYear": 2023,
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"fieldID": 1,
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"SatelliteBands": [ "wdvi", "ndvi" ], // ["ndvi"] or ["wdvi"] or both: [ "wdvi", "ndvi" ]
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"SatelliteBands": [ "ci-red", "ndvi", "wdvi" ], // ["ndvi"] or ["wdvi"] or both: [ "wdvi", "ndvi" ]
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"lastdownloadedimagedate": "2023-01-01", //downloads images from this date till end of the year
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"geometryJson": {
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"type": "Polygon",
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"coordinates": [
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[
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[ 5.563472073408009, 52.547554398144172 ],
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[ 5.567425915520115, 52.547725375100377 ],
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[ 5.563878143678981, 52.54048022658143 ],
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[ 5.563878143678981, 52.54048022658143 ],
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[ 5.563472073408009, 52.547554398144172 ]
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]
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]
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},
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"downloadFolder": "C:\\workdir\\groenmonitor\\", //if not yet existing this folder will be created
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"fileNameStats": "BulkSatDownload.csv", //if file exists, probably will be overwritten. Check code in BulkSatDownloadApplication.cs
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"database": null, // keep null to work with json and csv. Check code in BulkSatDownloadApplication.cs if reading/writing to/from database
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"schemaname": null,
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"cropfieldtable": null,
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"satelllitetable": null
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},
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{
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"fieldName": "MyField_2", // FarmMaps minimum needs are: fieldName, cropYear & geometryJson
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"cropYear": 2022, // for testing same field last year (i.e. 2021)
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"fieldID": 2,
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"SatelliteBands": [ "ci-red", "ndvi", "wdvi" ], // ["ndvi"] or ["wdvi"] or both: [ "wdvi", "ndvi" ]
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"lastdownloadedimagedate": "2022-01-01", //downloads images from this date till end of the year
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"geometryJson": {
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"type": "Polygon",
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@ -25,10 +50,10 @@
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"satelllitetable": null
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},
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{
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"fieldName": "BvdT FieldlabG92", // FarmMaps minimum needs are: fieldName, cropYear & geometryJson
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"cropYear": 2021, // for testing same field last year (i.e. 2021)
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"fieldID": 1,
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"SatelliteBands": [ "wdvi", "ndvi" ], // ["ndvi"] or ["wdvi"] or both: [ "wdvi", "ndvi" ]
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"fieldName": "MyField_3", // FarmMaps minimum needs are: fieldName, cropYear & geometryJson
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"cropYear": 2021,
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"fieldID": 3,
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"SatelliteBands": [ "ci-red", "ndvi", "wdvi" ], // ["ndvi"] or ["wdvi"] or both: [ "wdvi", "ndvi" ]
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"lastdownloadedimagedate": "2021-01-01", //downloads images from this date till end of the year
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"geometryJson": {
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"type": "Polygon",
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@ -48,5 +73,155 @@
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"schemaname": null,
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"cropfieldtable": null,
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"satelllitetable": null
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},
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{
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"fieldName": "MyField_4", // FarmMaps minimum needs are: fieldName, cropYear & geometryJson
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"cropYear": 2020,
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"fieldID": 4,
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"SatelliteBands": [ "ci-red", "ndvi", "wdvi" ], // ["ndvi"] or ["wdvi"] or both: [ "wdvi", "ndvi" ]
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"lastdownloadedimagedate": "2020-01-01", //downloads images from this date till end of the year
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"geometryJson": {
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"type": "Polygon",
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"coordinates": [
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[
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[ 5.563472073408009, 52.547554398144172 ],
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[ 5.567425915520115, 52.547725375100377 ],
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[ 5.563878143678981, 52.54048022658143 ],
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[ 5.563878143678981, 52.54048022658143 ],
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[ 5.563472073408009, 52.547554398144172 ]
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]
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]
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},
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"downloadFolder": "C:\\workdir\\groenmonitor\\",
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"fileNameStats": "BulkSatDownload.csv",
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"database": null,
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"schemaname": null,
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"cropfieldtable": null,
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"satelllitetable": null
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},
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{
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"fieldName": "MyField_5", // FarmMaps minimum needs are: fieldName, cropYear & geometryJson
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"cropYear": 2019,
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"fieldID": 5,
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"SatelliteBands": [ "ci-red", "ndvi", "wdvi" ], // ["ndvi"] or ["wdvi"] or both: [ "wdvi", "ndvi" ]
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"lastdownloadedimagedate": "2019-01-01", //downloads images from this date till end of the year
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"geometryJson": {
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"type": "Polygon",
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"coordinates": [
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[
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[ 5.563472073408009, 52.547554398144172 ],
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[ 5.567425915520115, 52.547725375100377 ],
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[ 5.563878143678981, 52.54048022658143 ],
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[ 5.563878143678981, 52.54048022658143 ],
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[ 5.563472073408009, 52.547554398144172 ]
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]
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]
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},
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"downloadFolder": "C:\\workdir\\groenmonitor\\",
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"fileNameStats": "BulkSatDownload.csv",
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"database": null,
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"schemaname": null,
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"cropfieldtable": null,
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"satelllitetable": null
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},
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{
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"fieldName": "MyField_6", // FarmMaps minimum needs are: fieldName, cropYear & geometryJson
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"cropYear": 2018,
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"fieldID": 6,
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"SatelliteBands": [ "ci-red", "ndvi", "wdvi" ], // ["ndvi"] or ["wdvi"] or both: [ "wdvi", "ndvi" ]
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"lastdownloadedimagedate": "2018-01-01", //downloads images from this date till end of the year
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"geometryJson": {
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"type": "Polygon",
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"coordinates": [
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[
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[ 5.563472073408009, 52.547554398144172 ],
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[ 5.567425915520115, 52.547725375100377 ],
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[ 5.563878143678981, 52.54048022658143 ],
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[ 5.563878143678981, 52.54048022658143 ],
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[ 5.563472073408009, 52.547554398144172 ]
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]
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]
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},
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"downloadFolder": "C:\\workdir\\groenmonitor\\",
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"fileNameStats": "BulkSatDownload.csv",
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"database": null,
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"schemaname": null,
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"cropfieldtable": null,
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"satelllitetable": null
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},
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{
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"fieldName": "MyField_6", // FarmMaps minimum needs are: fieldName, cropYear & geometryJson
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"cropYear": 2017,
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"fieldID": 7,
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"SatelliteBands": [ "ci-red", "ndvi", "wdvi" ], // ["ndvi"] or ["wdvi"] or both: [ "wdvi", "ndvi" ]
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"lastdownloadedimagedate": "2017-01-01", //downloads images from this date till end of the year
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"geometryJson": {
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"type": "Polygon",
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"coordinates": [
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[
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[ 5.563472073408009, 52.547554398144172 ],
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[ 5.567425915520115, 52.547725375100377 ],
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[ 5.563878143678981, 52.54048022658143 ],
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[ 5.563878143678981, 52.54048022658143 ],
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[ 5.563472073408009, 52.547554398144172 ]
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]
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]
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},
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"downloadFolder": "C:\\workdir\\groenmonitor\\",
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"fileNameStats": "BulkSatDownload.csv",
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"database": null,
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"schemaname": null,
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"cropfieldtable": null,
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"satelllitetable": null
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},
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{
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"fieldName": "MyField_8", // FarmMaps minimum needs are: fieldName, cropYear & geometryJson. Actually no Satellite data before 2017. This here to illustrate the program does not crash
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"cropYear": 2016,
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"fieldID": 8,
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"SatelliteBands": [ "ci-red", "ndvi", "wdvi" ], // ["ndvi"] or ["wdvi"] or both: [ "wdvi", "ndvi" ]
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"lastdownloadedimagedate": "2016-01-01", //downloads images from this date till end of the year
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"geometryJson": {
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"type": "Polygon",
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"coordinates": [
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[
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[ 5.563472073408009, 52.547554398144172 ],
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[ 5.567425915520115, 52.547725375100377 ],
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[ 5.563878143678981, 52.54048022658143 ],
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[ 5.563878143678981, 52.54048022658143 ],
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[ 5.563472073408009, 52.547554398144172 ]
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]
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]
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},
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"downloadFolder": "C:\\workdir\\groenmonitor\\",
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"fileNameStats": "BulkSatDownload.csv",
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"database": null,
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"schemaname": null,
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"cropfieldtable": null,
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"satelllitetable": null
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},
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{
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"fieldName": "MyField_9", // FarmMaps minimum needs are: fieldName, cropYear & geometryJson. Actually no Satellite data before 2017. This here to illustrate the program does not crash
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"cropYear": 2015,
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"fieldID": 9,
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"SatelliteBands": [ "ci-red", "ndvi", "wdvi" ], // ["ndvi"] or ["wdvi"] or both: [ "wdvi", "ndvi" ]
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"lastdownloadedimagedate": "2015-01-01", //downloads images from this date till end of the year
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"geometryJson": {
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"type": "Polygon",
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"coordinates": [
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[
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[ 5.563472073408009, 52.547554398144172 ],
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[ 5.567425915520115, 52.547725375100377 ],
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[ 5.563878143678981, 52.54048022658143 ],
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[ 5.563878143678981, 52.54048022658143 ],
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[ 5.563472073408009, 52.547554398144172 ]
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]
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]
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},
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"downloadFolder": "C:\\workdir\\groenmonitor\\",
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"fileNameStats": "BulkSatDownload.csv",
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"database": null,
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"schemaname": null,
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"cropfieldtable": null,
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"satelllitetable": null
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}
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]
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