private IEnumerator <IAsyncResult> GetBlobImpl(IBlobRegion blobRegion, BlobPropertyNames propertyNames, IBlobObjectCondition condition, AsyncIteratorContext <CrcStream> context)
{
IAsyncResult asyncResult = this._storageManager.AsyncProcessor.BeginExecute <CrcStream>((TimeSpan param0) => {
CrcStream streamFromByteArray;
using (TransactionScope transactionScope = new TransactionScope())
{
using (DevelopmentStorageDbDataContext dbContext = DevelopmentStorageDbDataContext.GetDbContext())
{
base.LoadContainer(dbContext);
BlockBlob blockBlob = base.LoadBlockBlob(dbContext);
if (blobRegion == null)
{
blobRegion = new BlobRegion((long)0, blockBlob.ContentLength);
}
else if (blobRegion.Offset > blockBlob.ContentLength || blobRegion.Offset == blockBlob.ContentLength && blockBlob.ContentLength > (long)0)
{
throw new InvalidBlobRegionException(new long?(blobRegion.Offset), "Offset value is greater than the contentlength");
}
BlobLeaseInfo blobLeaseInfo = new BlobLeaseInfo(blockBlob, DateTime.UtcNow);
DbBlobObject.CheckConditionsAndReturnResetRequired(blockBlob, blobLeaseInfo, condition, null, false);
long offset = blobRegion.Offset;
long num = Math.Min(offset + blobRegion.Length, blockBlob.ContentLength);
IOrderedQueryable <CommittedBlock> committedBlocks =
from b in dbContext.CommittedBlocks
where (b.AccountName == this._blob.AccountName) && (b.ContainerName == this._blob.ContainerName) && (b.BlobName == this._blob.BlobName) && (b.VersionTimestamp == this._blob.VersionTimestamp) && (long?)b.Offset + b.Length >= (long?)offset && b.Offset < num
orderby b.Offset
select b;
byte[] bytesFromCommittedBlocks = this.GetBytesFromCommittedBlocks(dbContext, offset, num, committedBlocks);
transactionScope.Complete();
this._blob = blockBlob;
this.LeaseInfo = blobLeaseInfo;
streamFromByteArray = DbStorageHelper.GetStreamFromByteArray(bytesFromCommittedBlocks);
}
}
return(streamFromByteArray);
}, base.Timeout, context.GetResumeCallback(), context.GetResumeState("DbListBlobObject.GetBlob"));
yield return(asyncResult);
context.ResultData = this._storageManager.AsyncProcessor.EndExecute <CrcStream>(asyncResult);
}
private IEnumerator <IAsyncResult> PutBlockImpl(byte[] blockIdentifier, long contentLength, Stream inputStream, byte[] contentMD5, bool isLargeBlockBlobRequest, IBlobObjectCondition condition, AsyncIteratorContext <NoResults> context)
{
Microsoft.WindowsAzure.DevelopmentStorage.Store.BlobContainer blobContainer = null;
BlockBlob blockBlob = null;
IAsyncResult asyncResult = this._storageManager.AsyncProcessor.BeginExecute((TimeSpan param0) => {
long num;
long num1;
StorageStampHelpers.ValidatePutBlockArguments(this, blockIdentifier, contentLength, contentMD5, condition, true);
string str = null;
using (DevelopmentStorageDbDataContext dbContext = DevelopmentStorageDbDataContext.GetDbContext())
{
blobContainer = base.LoadContainer(dbContext);
blockBlob = base.TryLoadBlockBlob(dbContext, out str);
if (blockBlob == null)
{
lock (DbListBlobObject.SynchronizePutBlock)
{
blockBlob = base.TryLoadBlockBlob(dbContext, out str);
if (blockBlob == null)
{
if (string.IsNullOrEmpty(str))
{
str = BlockBlobDataManager.CreateUniqueDirectoryLoadBalanced();
}
using (DevelopmentStorageDbDataContext developmentStorageDbDataContext = DevelopmentStorageDbDataContext.GetDbContext())
{
Logger <INormalAndDebugLogger> .Instance.VerboseDebug.Log("PutBlockImpl: Creating record for ({0};{1};{2})", new object[] { this._blob.AccountName, this._blob.ContainerName, this._blob.BlobName });
StorageStampHelpers.CheckBlobName(this._blob.BlobName, this._blob.ContainerName);
blockBlob = new BlockBlob()
{
AccountName = this._blob.AccountName,
ContainerName = this._blob.ContainerName,
BlobName = this._blob.BlobName,
VersionTimestamp = DateTime.SpecifyKind(DateTime.MaxValue, DateTimeKind.Utc),
ContentLength = (long)0,
IsCommitted = new bool?(false),
HasBlock = new bool?(true),
DirectoryPath = str,
GenerationId = Guid.NewGuid().ToString(),
SnapshotCount = 0
};
developmentStorageDbDataContext.Blobs.InsertOnSubmit(blockBlob);
developmentStorageDbDataContext.SubmitChanges();
}
}
}
}
bool flag = false;
BlobLeaseInfo blobLeaseInfo = new BlobLeaseInfo(blockBlob, DateTime.UtcNow);
DbBlobObject.CheckCopyState(blockBlob);
flag = DbBlobObject.CheckConditionsAndReturnResetRequired(blockBlob, blobLeaseInfo, condition, null, true);
byte[] byteArrayFromStream = DbStorageHelper.GetByteArrayFromStream(inputStream, out num, true, isLargeBlockBlobRequest);
string file = BlockBlobDataManager.WriteBytesToFile(new BlockBlobMetaInfo(this._blob.AccountName, this._blob.ContainerName, this._blob.BlobName, str), byteArrayFromStream, out num1);
string hexString = DbListBlobObject.ToHexString(blockIdentifier);
BlockData blockDatum = this.TryLoadUncommittedBlock(dbContext, hexString);
if (blockDatum == null)
{
blockDatum = new BlockData()
{
AccountName = this._blob.AccountName,
ContainerName = this._blob.ContainerName,
BlobName = this._blob.BlobName,
VersionTimestamp = this._blob.VersionTimestamp,
IsCommitted = false,
BlockId = hexString
};
dbContext.BlocksData.InsertOnSubmit(blockDatum);
}
blockDatum.Length = new long?(num);
blockDatum.FilePath = file;
blockDatum.StartOffset = new long?(num1);
base.ResetBlobLeaseToAvailable(blockBlob, flag);
dbContext.SubmitChanges();
blobLeaseInfo.SetBlob(blockBlob, blobLeaseInfo.LeaseInfoValidAt);
this.LeaseInfo = blobLeaseInfo;
}
}, base.Timeout, context.GetResumeCallback(), context.GetResumeState("DbListBlobObject.PutBlock"));
yield return(asyncResult);
this._storageManager.AsyncProcessor.EndExecute(asyncResult);
}
private IEnumerator <IAsyncResult> PutBlobImpl(string contentType, long contentLength, byte[] serviceMetadata, byte[] applicationMetadata, Stream inputStream, byte[] contentMD5, bool invokeGeneratePutBlobServiceMetadata, GeneratePutBlobServiceMetadata generatePutBlobServiceMetadata, bool isLargeBlockBlobRequest, ISequenceNumberUpdate sequenceNumberUpdate, OverwriteOption overwriteOption, IBlobObjectCondition condition, AsyncIteratorContext <NoResults> context)
{
IAsyncResult asyncResult = this._storageManager.AsyncProcessor.BeginExecute((TimeSpan param0) => {
long num;
long num1;
using (TransactionScope transactionScope = new TransactionScope())
{
using (DevelopmentStorageDbDataContext dbContext = DevelopmentStorageDbDataContext.GetDbContext())
{
base.LoadContainer(dbContext);
string str = null;
BlockBlob blockBlob = base.TryLoadBlockBlob(dbContext, out str);
DateTime utcNow = DateTime.UtcNow;
bool flag = false;
if (blockBlob != null)
{
if (blockBlob.IsCommitted.Value && overwriteOption == OverwriteOption.CreateNewOnly)
{
throw new BlobAlreadyExistsException();
}
DbBlobObject.CheckCopyState(blockBlob);
flag = DbBlobObject.CheckConditionsAndReturnResetRequired(blockBlob, new BlobLeaseInfo(blockBlob, utcNow), condition, null, true);
dbContext.ClearUncommittedBlocks(this._blob.AccountName, this._blob.ContainerName, this._blob.BlobName);
dbContext.Refresh(RefreshMode.KeepChanges, blockBlob);
}
else
{
if (overwriteOption == OverwriteOption.UpdateExistingOnly)
{
if (condition == null || !condition.LeaseId.HasValue)
{
throw new ConditionNotMetException();
}
throw new LeaseNotPresentException();
}
StorageStampHelpers.CheckBlobName(this._blob.BlobName, this._blob.ContainerName);
if (string.IsNullOrEmpty(str))
{
str = BlockBlobDataManager.CreateUniqueDirectoryLoadBalanced();
}
blockBlob = new BlockBlob()
{
AccountName = this._blob.AccountName,
ContainerName = this._blob.ContainerName,
BlobName = this._blob.BlobName,
VersionTimestamp = DateTime.SpecifyKind(DateTime.MaxValue, DateTimeKind.Utc),
DirectoryPath = str
};
dbContext.Blobs.InsertOnSubmit(blockBlob);
}
StorageStampHelpers.ValidatePutBlobArguments(this, contentLength, null, applicationMetadata, contentMD5, sequenceNumberUpdate, overwriteOption, condition, true, false);
byte[] byteArrayFromStream = DbStorageHelper.GetByteArrayFromStream(inputStream, out num, false, isLargeBlockBlobRequest);
string file = BlockBlobDataManager.WriteBytesToFile(new BlockBlobMetaInfo(this._blob.AccountName, this._blob.ContainerName, this._blob.BlobName, str), byteArrayFromStream, out num1);
Guid guid = Guid.NewGuid();
BlockData blockDatum = new BlockData()
{
AccountName = this._blob.AccountName,
ContainerName = this._blob.ContainerName,
BlobName = this._blob.BlobName,
VersionTimestamp = this._blob.VersionTimestamp,
IsCommitted = false,
BlockId = DbListBlobObject.ToHexString(guid.ToByteArray()),
FilePath = file,
StartOffset = new long?(num1)
};
dbContext.BlocksData.InsertOnSubmit(blockDatum);
if (invokeGeneratePutBlobServiceMetadata && generatePutBlobServiceMetadata != null)
{
serviceMetadata = generatePutBlobServiceMetadata();
}
blockBlob.ContentType = contentType ?? "application/octet-stream";
blockBlob.ContentMD5 = contentMD5;
blockBlob.ServiceMetadata = serviceMetadata;
blockBlob.Metadata = applicationMetadata;
blockBlob.IsCommitted = new bool?(false);
blockBlob.HasBlock = new bool?(false);
blockBlob.UncommittedBlockIdLength = null;
blockBlob.GenerationId = Guid.NewGuid().ToString();
blockBlob.SnapshotCount = 0;
blockDatum.Length = new long?(num);
blockBlob.ContentLength = num;
base.ResetBlobLeaseToAvailable(blockBlob, flag);
dbContext.SubmitChanges();
StringBuilder stringBuilder = new StringBuilder();
DbListBlobObject.SerializeCommitBlockListEntry(stringBuilder, guid.ToByteArray(), BlockSource.Uncommitted);
DateTime?nullable = null;
dbContext.CommitBlockList(this._blob.AccountName, this._blob.ContainerName, this._blob.BlobName, stringBuilder.ToString(), ref nullable);
transactionScope.Complete();
blockBlob.LastModificationTime = nullable;
this._blob = blockBlob;
this.LeaseInfo = new BlobLeaseInfo(blockBlob, utcNow);
}
}
}, base.Timeout, context.GetResumeCallback(), context.GetResumeState("DbListBlobObject.PutBlobImpl"));
yield return(asyncResult);
this._storageManager.AsyncProcessor.EndExecute(asyncResult);
}
