Indicates whether the document has been loaded at least once.
public bool IsLoaded {get; set;}
true if this document has been loaded at least once; otherwise, false.
If the value of IsLoaded is false, then the document was uploaded to the cache but has not been loaded with DocumentFactory.LoadFromCache yet.
using Leadtools;
using Leadtools.Codecs;
using Leadtools.Document.Writer;
using Leadtools.Document;
using Leadtools.Caching;
using Leadtools.Annotations.Engine;
using Leadtools.Ocr;
using Leadtools.Barcode;
using Leadtools.Document.Converter;
public void GetDocumentCacheInfoExample()
{
string documentFile = Path.Combine(LEAD_VARS.ImagesDir, "Leadtools.pdf");
// Setup a cache
FileCache cache = new FileCache();
cache.CacheDirectory = @"c:\cache-dir";
// We will use this document ID
const string documentId = "test-document";
// Ensure that the document does not exist in the cache
var deleteFromCacheOptions = new LoadFromCacheOptions();
deleteFromCacheOptions.Cache = cache;
deleteFromCacheOptions.DocumentId = documentId;
DocumentFactory.DeleteFromCache(deleteFromCacheOptions);
DocumentCacheInfo cacheInfo;
// Now get the info for this document, it should not exist
cacheInfo = DocumentFactory.GetDocumentCacheInfo(cache, documentId);
Debug.Assert(cacheInfo == null);
// Next, upload a document into this cache
var uploadDocumentOptions = new UploadDocumentOptions();
uploadDocumentOptions.Cache = cache;
uploadDocumentOptions.DocumentId = documentId;
uploadDocumentOptions.Name = "Leadtools.pdf";
Uri uploadUri = DocumentFactory.BeginUpload(uploadDocumentOptions);
using (var stream = File.OpenRead(documentFile))
{
var buffer = new byte[stream.Length];
stream.Read(buffer, 0, buffer.Length);
DocumentFactory.UploadDocument(cache, uploadUri, buffer, 0, buffer.Length);
}
DocumentFactory.EndUpload(cache, uploadUri);
// Now check the info again, it should be there but not loaded
cacheInfo = DocumentFactory.GetDocumentCacheInfo(cache, documentId);
// DocumentCacheInfo reference
Console.WriteLine("After upload");
Console.WriteLine(" DocumentId:" + cacheInfo.DocumentId);
Console.WriteLine(" Name:" + cacheInfo.Name);
Console.WriteLine(" IsLoaded:" + cacheInfo.IsLoaded);
Console.WriteLine(" Annotations data length:" + cacheInfo.AnnotationsDataLength);
Console.WriteLine(" Document data length:" + cacheInfo.DocumentDataLength);
Console.WriteLine(" Has annotations:" + cacheInfo.HasAnnotations);
Console.WriteLine(" Has user token:" + cacheInfo.HasUserToken);
Console.WriteLine(" Is virtual:" + cacheInfo.IsVirtual);
Console.WriteLine(" Mime Type:" + cacheInfo.MimeType);
Console.WriteLine(" Mime Type status:" + cacheInfo.MimeTypeStatus);
Console.WriteLine(" Page count:" + cacheInfo.PageCount);
Debug.Assert(cacheInfo.DocumentId == documentId);
Debug.Assert(cacheInfo.Name == "Leadtools.pdf");
Debug.Assert(!cacheInfo.IsLoaded);
Debug.Assert(cacheInfo.AnnotationsDataLength == 0);
Debug.Assert(cacheInfo.DocumentDataLength == 90301);
Debug.Assert(!cacheInfo.HasAnnotations);
Debug.Assert(!cacheInfo.HasUserToken);
Debug.Assert(!cacheInfo.IsVirtual);
Debug.Assert(cacheInfo.MimeType == null);
Debug.Assert(cacheInfo.MimeTypeStatus == DocumentMimeTypeStatus.Unspecified);
Debug.Assert(cacheInfo.PageCount == 0);
// Next load this document
var loadDocumentOptions = new LoadDocumentOptions();
loadDocumentOptions.Cache = cache;
using (var document = DocumentFactory.LoadFromUri(uploadUri, loadDocumentOptions))
{
// Save it to the cache
document.AutoSaveToCache = false;
document.AutoDeleteFromCache = false;
document.SaveToCache();
}
// Now get its info again, it should be there and loaded
cacheInfo = DocumentFactory.GetDocumentCacheInfo(cache, documentId);
Console.WriteLine("After load");
Console.WriteLine(" DocumentId:" + cacheInfo.DocumentId);
Console.WriteLine(" Name:" + cacheInfo.Name);
Console.WriteLine(" IsLoaded:" + cacheInfo.IsLoaded);
Console.WriteLine(" Annotations data length:" + cacheInfo.AnnotationsDataLength);
Console.WriteLine(" Document data length:" + cacheInfo.DocumentDataLength);
Console.WriteLine(" Has annotations:" + cacheInfo.HasAnnotations);
Console.WriteLine(" Has user token:" + cacheInfo.HasUserToken);
Console.WriteLine(" Is virtual:" + cacheInfo.IsVirtual);
Console.WriteLine(" Mime Type:" + cacheInfo.MimeType);
Console.WriteLine(" Mime Type status:" + cacheInfo.MimeTypeStatus);
Console.WriteLine(" Page count:" + cacheInfo.PageCount);
Debug.Assert(cacheInfo.DocumentId == documentId);
Debug.Assert(cacheInfo.Name == "Leadtools.pdf");
Debug.Assert(cacheInfo.IsLoaded);
Debug.Assert(cacheInfo.AnnotationsDataLength == 0);
Debug.Assert(cacheInfo.DocumentDataLength == 90301);
Debug.Assert(!cacheInfo.HasAnnotations);
Debug.Assert(!cacheInfo.HasUserToken);
Debug.Assert(!cacheInfo.IsVirtual);
Debug.Assert(cacheInfo.MimeType == "application/pdf");
Debug.Assert(cacheInfo.MimeTypeStatus == DocumentMimeTypeStatus.Unspecified);
Debug.Assert(cacheInfo.PageCount == 5);
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images";
}