/// <summary>
/// Gets the page ranges impl.
/// </summary>
/// <param name="offset">The start offset. Must be multiples of 512.</param>
/// <param name="length">Length of the data range to be cleared. Must be multiples of 512.</param>
/// <param name="accessCondition">An <see cref="AccessCondition"/> object that represents the access conditions for the blob. If <c>null</c>, no condition is used.</param>
/// <param name="options">A <see cref="BlobRequestOptions"/> object that specifies any additional options for the request.</param>
/// <returns>A <see cref="RESTCommand{T}"/> for getting the page ranges.</returns>
private RESTCommand<IEnumerable<PageRange>> GetPageRangesImpl(long? offset, long? length, AccessCondition accessCondition, BlobRequestOptions options)
{
RESTCommand<IEnumerable<PageRange>> getCmd = new RESTCommand<IEnumerable<PageRange>>(this.ServiceClient.Credentials, this.Uri);
getCmd.ApplyRequestOptions(options);
getCmd.RetrieveResponseStream = true;
getCmd.BuildRequestDelegate = (uri, builder, serverTimeout, ctx) => BlobHttpWebRequestFactory.GetPageRanges(uri, serverTimeout, this.SnapshotTime, offset, length, accessCondition, ctx);
getCmd.SetHeaders = (r, ctx) => BlobHttpWebRequestFactory.AddMetadata(r, this.Metadata);
getCmd.SignRequest = this.ServiceClient.AuthenticationHandler.SignRequest;
getCmd.PreProcessResponse = (cmd, resp, ex, ctx) => HttpResponseParsers.ProcessExpectedStatusCodeNoException(HttpStatusCode.OK, resp, null /* retVal */, cmd, ex, ctx);
getCmd.PostProcessResponse = (cmd, resp, ex, ctx) =>
{
CloudBlobSharedImpl.ParseSizeAndLastModified(this.attributes, resp);
GetPageRangesResponse getPageRangesResponse = new GetPageRangesResponse(cmd.ResponseStream);
IEnumerable<PageRange> pageRanges = new List<PageRange>(getPageRangesResponse.PageRanges);
return pageRanges;
};
return getCmd;
}
/// <summary>
/// Implementation for get page ranges.
/// </summary>
/// <param name="offset">The starting offset of the data range over which to list page ranges, in bytes. Must be a multiple of 512.</param>
/// <param name="length">The length of the data range over which to list page ranges, in bytes. Must be a multiple of 512.</param>
/// <param name="accessCondition">An <see cref="AccessCondition"/> object that represents the access conditions for the blob. If <c>null</c>, no condition is used.</param>
/// <param name="options">A <see cref="BlobRequestOptions"/> object that specifies additional options for the request.</param>
/// <returns>A <see cref="RESTCommand"/> for getting the page ranges.</returns>
private RESTCommand<IEnumerable<PageRange>> GetPageRangesImpl(long? offset, long? length, AccessCondition accessCondition, BlobRequestOptions options)
{
RESTCommand<IEnumerable<PageRange>> getCmd = new RESTCommand<IEnumerable<PageRange>>(this.ServiceClient.Credentials, this.attributes.StorageUri);
options.ApplyToStorageCommand(getCmd);
getCmd.CommandLocationMode = CommandLocationMode.PrimaryOrSecondary;
getCmd.RetrieveResponseStream = true;
getCmd.BuildRequest = (cmd, uri, builder, cnt, serverTimeout, ctx) =>
{
StorageRequestMessage msg = BlobHttpRequestMessageFactory.GetPageRanges(uri, serverTimeout, this.SnapshotTime, offset, length, accessCondition, cnt, ctx, this.ServiceClient.GetCanonicalizer(), this.ServiceClient.Credentials);
return msg;
};
getCmd.PreProcessResponse = (cmd, resp, ex, ctx) => HttpResponseParsers.ProcessExpectedStatusCodeNoException(HttpStatusCode.OK, resp, null /* retVal */, cmd, ex);
getCmd.PostProcessResponse = (cmd, resp, ctx) =>
{
CloudBlob.UpdateETagLMTLengthAndSequenceNumber(this.attributes, resp, true);
return Task.Factory.StartNew(() =>
{
GetPageRangesResponse getPageRangesResponse = new GetPageRangesResponse(cmd.ResponseStream);
IEnumerable<PageRange> pageRanges = new List<PageRange>(getPageRangesResponse.PageRanges);
return pageRanges;
});
};
return getCmd;
}
/// <summary>
/// Gets the page ranges impl.
/// </summary>
/// <param name="offset">The starting offset of the data range over which to list page ranges, in bytes. Must be a multiple of 512.</param>
/// <param name="length">The length of the data range over which to list page ranges, in bytes. Must be a multiple of 512.</param>
/// <param name="accessCondition">An <see cref="AccessCondition"/> object that represents the access conditions for the blob. If <c>null</c>, no condition is used.</param>
/// <param name="options">A <see cref="BlobRequestOptions"/> object that specifies any additional options for the request.</param>
/// <returns>A <see cref="RESTCommand"/> for getting the page ranges.</returns>
private RESTCommand<IEnumerable<PageRange>> GetPageRangesImpl(long? offset, long? length, AccessCondition accessCondition, BlobRequestOptions options)
{
RESTCommand<IEnumerable<PageRange>> getCmd = new RESTCommand<IEnumerable<PageRange>>(this.ServiceClient.Credentials, this.Uri);
getCmd.ApplyRequestOptions(options);
getCmd.RetrieveResponseStream = true;
getCmd.Handler = this.ServiceClient.AuthenticationHandler;
getCmd.BuildClient = HttpClientFactory.BuildHttpClient;
getCmd.BuildRequest = (cmd, cnt, ctx) =>
{
HttpRequestMessage msg = BlobHttpRequestMessageFactory.GetPageRanges(cmd.Uri, cmd.ServerTimeoutInSeconds, this.SnapshotTime, offset, length, accessCondition, cnt, ctx);
BlobHttpRequestMessageFactory.AddMetadata(msg, this.Metadata);
return msg;
};
getCmd.PreProcessResponse = (cmd, resp, ex, ctx) => HttpResponseParsers.ProcessExpectedStatusCodeNoException(HttpStatusCode.OK, resp, null /* retVal */, cmd, ex, ctx);
getCmd.PostProcessResponse = (cmd, resp, ex, ctx) =>
{
CloudBlobSharedImpl.ParseSizeAndLastModified(this.attributes, resp);
return Task.Factory.StartNew(() =>
{
GetPageRangesResponse getPageRangesResponse = new GetPageRangesResponse(cmd.ResponseStream);
IEnumerable<PageRange> pageRanges = new List<PageRange>(getPageRangesResponse.PageRanges);
return pageRanges;
});
};
return getCmd;
}
/// <summary>
/// Gets the page ranges impl.
/// </summary>
/// <param name="offset">The starting offset of the data range over which to list page ranges, in bytes. Must be a multiple of 512.</param>
/// <param name="length">The length of the data range over which to list page ranges, in bytes. Must be a multiple of 512.</param>
/// <param name="accessCondition">An <see cref="AccessCondition"/> object that represents the condition that must be met in order for the request to proceed. If <c>null</c>, no condition is used.</param>
/// <param name="options">A <see cref="BlobRequestOptions"/> object that specifies additional options for the request.</param>
/// <returns>A <see cref="RESTCommand{T}"/> for getting the page ranges.</returns>
private RESTCommand<IEnumerable<PageRange>> GetPageRangesImpl(long? offset, long? length, AccessCondition accessCondition, BlobRequestOptions options)
{
RESTCommand<IEnumerable<PageRange>> getCmd = new RESTCommand<IEnumerable<PageRange>>(this.ServiceClient.Credentials, this.attributes.StorageUri);
options.ApplyToStorageCommand(getCmd);
getCmd.CommandLocationMode = CommandLocationMode.PrimaryOrSecondary;
getCmd.RetrieveResponseStream = true;
getCmd.BuildRequestDelegate = (uri, builder, serverTimeout, useVersionHeader, ctx) => BlobHttpWebRequestFactory.GetPageRanges(uri, serverTimeout, this.SnapshotTime, offset, length, accessCondition, useVersionHeader, ctx);
getCmd.SetHeaders = (r, ctx) => BlobHttpWebRequestFactory.AddMetadata(r, this.Metadata);
getCmd.SignRequest = this.ServiceClient.AuthenticationHandler.SignRequest;
getCmd.PreProcessResponse = (cmd, resp, ex, ctx) => HttpResponseParsers.ProcessExpectedStatusCodeNoException(HttpStatusCode.OK, resp, null /* retVal */, cmd, ex);
getCmd.PostProcessResponse = (cmd, resp, ctx) =>
{
CloudBlob.UpdateETagLMTLengthAndSequenceNumber(this.attributes, resp, true);
GetPageRangesResponse getPageRangesResponse = new GetPageRangesResponse(cmd.ResponseStream);
IEnumerable<PageRange> pageRanges = new List<PageRange>(getPageRangesResponse.PageRanges);
return pageRanges;
};
return getCmd;
}
public void ClearPageRangeScenarioTest(string containerName, string blobName, HttpStatusCode? expectedError)
{
// 1. Create Sparse Page Blob
int blobSize = 128 * 1024;
BlobProperties properties = new BlobProperties() { BlobType = BlobType.PageBlob };
Uri uri = BlobTests.ConstructPutUri(BlobContext.Address, containerName, blobName);
OperationContext opContext = new OperationContext();
HttpWebRequest webRequest = BlobHttpWebRequestFactory.Put(uri, BlobContext.Timeout, properties, BlobType.PageBlob, blobSize, null, opContext);
BlobTests.SignRequest(webRequest, BlobContext);
using (HttpWebResponse response = webRequest.GetResponse() as HttpWebResponse)
{
BlobTests.PutBlobResponse(response, BlobContext, expectedError);
}
// 2. Now upload some page ranges
for (int m = 0; m * 512 * 4 < blobSize; m++)
{
int startOffset = 512 * 4 * m;
int length = 512;
PageRange range = new PageRange(startOffset, startOffset + length - 1);
opContext = new OperationContext();
HttpWebRequest pageRequest = BlobHttpWebRequestFactory.PutPage(uri, BlobContext.Timeout, range, PageWrite.Update, null, opContext);
pageRequest.ContentLength = 512;
BlobTests.SignRequest(pageRequest, BlobContext);
Stream outStream = pageRequest.GetRequestStream();
for (int n = 0; n < 512; n++)
{
outStream.WriteByte((byte)m);
}
outStream.Close();
using (HttpWebResponse pageResponse = pageRequest.GetResponse() as HttpWebResponse)
{
}
}
// 3. Now do a Get Page Ranges
List<PageRange> pageRanges = new List<PageRange>();
opContext = new OperationContext();
HttpWebRequest pageRangeRequest = BlobHttpWebRequestFactory.GetPageRanges(uri, BlobContext.Timeout, null, null, null, null, opContext);
BlobTests.SignRequest(pageRangeRequest, BlobContext);
using (HttpWebResponse pageRangeResponse = pageRangeRequest.GetResponse() as HttpWebResponse)
{
GetPageRangesResponse getPageRangesResponse = new GetPageRangesResponse(pageRangeResponse.GetResponseStream());
pageRanges.AddRange(getPageRangesResponse.PageRanges.ToList());
}
// 4. Now Clear some pages
bool skipFlag = false;
foreach (PageRange pRange in pageRanges)
{
skipFlag = !skipFlag;
if (skipFlag)
{
continue;
}
opContext = new OperationContext();
HttpWebRequest clearPageRequest = BlobHttpWebRequestFactory.PutPage(uri, BlobContext.Timeout, pRange, PageWrite.Clear, null, opContext);
clearPageRequest.ContentLength = 0;
BlobTests.SignRequest(clearPageRequest, BlobContext);
using (HttpWebResponse clearResponse = clearPageRequest.GetResponse() as HttpWebResponse)
{
}
}
// 5. Get New Page ranges and verify
List<PageRange> newPageRanges = new List<PageRange>();
opContext = new OperationContext();
HttpWebRequest newPageRangeRequest = BlobHttpWebRequestFactory.GetPageRanges(uri, BlobContext.Timeout, null, null, null, null, opContext);
BlobTests.SignRequest(newPageRangeRequest, BlobContext);
using (HttpWebResponse newPageRangeResponse = newPageRangeRequest.GetResponse() as HttpWebResponse)
{
GetPageRangesResponse getNewPageRangesResponse = new GetPageRangesResponse(newPageRangeResponse.GetResponseStream());
newPageRanges.AddRange(getNewPageRangesResponse.PageRanges.ToList());
}
Assert.AreEqual(pageRanges.Count(), newPageRanges.Count() * 2);
for (int l = 0; l < newPageRanges.Count(); l++)
{
Assert.AreEqual(pageRanges[2 * l].StartOffset, newPageRanges[l].StartOffset);
Assert.AreEqual(pageRanges[2 * l].EndOffset, newPageRanges[l].EndOffset);
}
}
