Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Core / CSharp / MS / Internal / AppModel / SiteOfOriginPart.cs / 1305600 / SiteOfOriginPart.cs
//------------------------------------------------------------------------------
//
//
// Copyright (C) Microsoft Corporation. All rights reserved.
//
//
// Description:
// SiteOfOriginPart is an implementation of the abstract PackagePart class. It contains an override for GetStreamCore.
//
// History:
// 6/16/2005: [....] - Initial creation.
//
//-----------------------------------------------------------------------------
using System;
using System.Net;
using System.IO.Packaging;
using System.Windows;
using System.Windows.Navigation;
using System.Windows.Resources;
using System.IO;
using System.Resources;
using System.Globalization;
using MS.Internal.PresentationCore;
namespace MS.Internal.AppModel
{
///
/// SiteOfOriginPart is an implementation of the abstract PackagePart class. It contains an override for GetStreamCore.
///
internal class SiteOfOriginPart : System.IO.Packaging.PackagePart
{
//-----------------------------------------------------
//
// Public Constructors
//
//-----------------------------------------------------
#region Public Constructors
internal SiteOfOriginPart(Package container, Uri uri) :
base(container, uri)
{
}
#endregion
//------------------------------------------------------
//
// Protected Methods
//
//-----------------------------------------------------
#region Protected Methods
protected override Stream GetStreamCore(FileMode mode, FileAccess access)
{
#if DEBUG
if (SiteOfOriginContainer._traceSwitch.Enabled)
System.Diagnostics.Trace.TraceInformation(
DateTime.Now.ToLongTimeString() + " " + DateTime.Now.Millisecond + " " +
System.Threading.Thread.CurrentThread.ManagedThreadId +
": SiteOfOriginPart: Getting stream.");
#endif
return GetStreamAndSetContentType(false);
}
protected override string GetContentTypeCore()
{
#if DEBUG
if (SiteOfOriginContainer._traceSwitch.Enabled)
System.Diagnostics.Trace.TraceInformation(
DateTime.Now.ToLongTimeString() + " " + DateTime.Now.Millisecond + " " +
System.Threading.Thread.CurrentThread.ManagedThreadId +
": SiteOfOriginPart: Getting content type.");
#endif
GetStreamAndSetContentType(true);
return _contentType.ToString();
}
#endregion
//------------------------------------------------------
//
// Private Methods
//
//------------------------------------------------------
#region Private Methods
private Stream GetStreamAndSetContentType(bool onlyNeedContentType)
{
lock (_globalLock)
{
if (onlyNeedContentType && _contentType != MS.Internal.ContentType.Empty)
{
#if DEBUG
if (SiteOfOriginContainer._traceSwitch.Enabled)
System.Diagnostics.Trace.TraceInformation(
DateTime.Now.ToLongTimeString() + " " + DateTime.Now.Millisecond + " " +
System.Threading.Thread.CurrentThread.ManagedThreadId +
": SiteOfOriginPart: Getting content type and using previously determined value");
#endif
return null;
}
// If GetContentTypeCore is called before GetStream()
// then we need to retrieve the stream to get the mime type.
// That stream is then stored as _cacheStream and returned
// the next time GetStreamCore() is called.
if (_cacheStream != null)
{
#if DEBUG
if (SiteOfOriginContainer._traceSwitch.Enabled)
System.Diagnostics.Trace.TraceInformation(
DateTime.Now.ToLongTimeString() + " " + DateTime.Now.Millisecond + " " +
System.Threading.Thread.CurrentThread.ManagedThreadId +
"SiteOfOriginPart: Using Cached stream");
#endif
Stream temp = _cacheStream;
_cacheStream = null;
return temp;
}
if (_absoluteLocation == null)
{
#if DEBUG
if (SiteOfOriginContainer._traceSwitch.Enabled)
System.Diagnostics.Trace.TraceInformation(
DateTime.Now.ToLongTimeString() + " " + DateTime.Now.Millisecond + " " +
System.Threading.Thread.CurrentThread.ManagedThreadId +
": SiteOfOriginPart: Determining absolute uri for this resource");
#endif
string original = Uri.ToString();
Invariant.Assert(original[0] == '/');
string uriMinusInitialSlash = original.Substring(1); // trim leading '/'
_absoluteLocation = new Uri(SiteOfOriginContainer.SiteOfOrigin, uriMinusInitialSlash);
}
#if DEBUG
if (SiteOfOriginContainer._traceSwitch.Enabled)
System.Diagnostics.Trace.TraceInformation(
DateTime.Now.ToLongTimeString() + " " + DateTime.Now.Millisecond + " " +
System.Threading.Thread.CurrentThread.ManagedThreadId +
": SiteOfOriginPart: Making web request to " + _absoluteLocation);
#endif
// For performance reasons it is better to open local files directly
// rather than make a FileWebRequest.
Stream responseStream;
if (SecurityHelper.AreStringTypesEqual(_absoluteLocation.Scheme, Uri.UriSchemeFile))
{
responseStream = HandleFileSource(onlyNeedContentType);
}
else
{
responseStream = HandleWebSource(onlyNeedContentType);
}
return responseStream;
}
}
private Stream HandleFileSource(bool onlyNeedContentType)
{
#if DEBUG
if (SiteOfOriginContainer._traceSwitch.Enabled)
System.Diagnostics.Trace.TraceInformation(
DateTime.Now.ToLongTimeString() + " " + DateTime.Now.Millisecond + " " +
System.Threading.Thread.CurrentThread.ManagedThreadId +
": Opening local file " + _absoluteLocation);
#endif
if (_contentType == MS.Internal.ContentType.Empty)
{
_contentType = MS.Internal.MimeTypeMapper.GetMimeTypeFromUri(Uri);
}
if (!onlyNeedContentType)
{
return File.OpenRead(_absoluteLocation.LocalPath);
}
return null;
}
private Stream HandleWebSource(bool onlyNeedContentType)
{
WebResponse response = WpfWebRequestHelper.CreateRequestAndGetResponse(_absoluteLocation);
Stream responseStream = response.GetResponseStream();
#if DEBUG
if (SiteOfOriginContainer._traceSwitch.Enabled)
System.Diagnostics.Trace.TraceInformation(
DateTime.Now.ToLongTimeString() + " " + DateTime.Now.Millisecond + " " +
System.Threading.Thread.CurrentThread.ManagedThreadId +
": Successfully retrieved stream from " + _absoluteLocation);
#endif
if (_contentType == MS.Internal.ContentType.Empty)
{
#if DEBUG
if (SiteOfOriginContainer._traceSwitch.Enabled)
System.Diagnostics.Trace.TraceInformation(
DateTime.Now.ToLongTimeString() + " " + DateTime.Now.Millisecond + " " +
System.Threading.Thread.CurrentThread.ManagedThreadId +
": SiteOfOriginPart: Setting _contentType");
#endif
_contentType = WpfWebRequestHelper.GetContentType(response);
}
if (onlyNeedContentType)
{
_cacheStream = responseStream;
}
return responseStream;
}
#endregion
//-----------------------------------------------------
//
// Private Fields
//
//------------------------------------------------------
#region Private Members
Uri _absoluteLocation = null;
ContentType _contentType = MS.Internal.ContentType.Empty;
Stream _cacheStream = null;
private Object _globalLock = new Object();
#endregion Private Members
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------------------------
//
//
// Copyright (C) Microsoft Corporation. All rights reserved.
//
//
// Description:
// SiteOfOriginPart is an implementation of the abstract PackagePart class. It contains an override for GetStreamCore.
//
// History:
// 6/16/2005: [....] - Initial creation.
//
//-----------------------------------------------------------------------------
using System;
using System.Net;
using System.IO.Packaging;
using System.Windows;
using System.Windows.Navigation;
using System.Windows.Resources;
using System.IO;
using System.Resources;
using System.Globalization;
using MS.Internal.PresentationCore;
namespace MS.Internal.AppModel
{
///
/// SiteOfOriginPart is an implementation of the abstract PackagePart class. It contains an override for GetStreamCore.
///
internal class SiteOfOriginPart : System.IO.Packaging.PackagePart
{
//-----------------------------------------------------
//
// Public Constructors
//
//-----------------------------------------------------
#region Public Constructors
internal SiteOfOriginPart(Package container, Uri uri) :
base(container, uri)
{
}
#endregion
//------------------------------------------------------
//
// Protected Methods
//
//-----------------------------------------------------
#region Protected Methods
protected override Stream GetStreamCore(FileMode mode, FileAccess access)
{
#if DEBUG
if (SiteOfOriginContainer._traceSwitch.Enabled)
System.Diagnostics.Trace.TraceInformation(
DateTime.Now.ToLongTimeString() + " " + DateTime.Now.Millisecond + " " +
System.Threading.Thread.CurrentThread.ManagedThreadId +
": SiteOfOriginPart: Getting stream.");
#endif
return GetStreamAndSetContentType(false);
}
protected override string GetContentTypeCore()
{
#if DEBUG
if (SiteOfOriginContainer._traceSwitch.Enabled)
System.Diagnostics.Trace.TraceInformation(
DateTime.Now.ToLongTimeString() + " " + DateTime.Now.Millisecond + " " +
System.Threading.Thread.CurrentThread.ManagedThreadId +
": SiteOfOriginPart: Getting content type.");
#endif
GetStreamAndSetContentType(true);
return _contentType.ToString();
}
#endregion
//------------------------------------------------------
//
// Private Methods
//
//------------------------------------------------------
#region Private Methods
private Stream GetStreamAndSetContentType(bool onlyNeedContentType)
{
lock (_globalLock)
{
if (onlyNeedContentType && _contentType != MS.Internal.ContentType.Empty)
{
#if DEBUG
if (SiteOfOriginContainer._traceSwitch.Enabled)
System.Diagnostics.Trace.TraceInformation(
DateTime.Now.ToLongTimeString() + " " + DateTime.Now.Millisecond + " " +
System.Threading.Thread.CurrentThread.ManagedThreadId +
": SiteOfOriginPart: Getting content type and using previously determined value");
#endif
return null;
}
// If GetContentTypeCore is called before GetStream()
// then we need to retrieve the stream to get the mime type.
// That stream is then stored as _cacheStream and returned
// the next time GetStreamCore() is called.
if (_cacheStream != null)
{
#if DEBUG
if (SiteOfOriginContainer._traceSwitch.Enabled)
System.Diagnostics.Trace.TraceInformation(
DateTime.Now.ToLongTimeString() + " " + DateTime.Now.Millisecond + " " +
System.Threading.Thread.CurrentThread.ManagedThreadId +
"SiteOfOriginPart: Using Cached stream");
#endif
Stream temp = _cacheStream;
_cacheStream = null;
return temp;
}
if (_absoluteLocation == null)
{
#if DEBUG
if (SiteOfOriginContainer._traceSwitch.Enabled)
System.Diagnostics.Trace.TraceInformation(
DateTime.Now.ToLongTimeString() + " " + DateTime.Now.Millisecond + " " +
System.Threading.Thread.CurrentThread.ManagedThreadId +
": SiteOfOriginPart: Determining absolute uri for this resource");
#endif
string original = Uri.ToString();
Invariant.Assert(original[0] == '/');
string uriMinusInitialSlash = original.Substring(1); // trim leading '/'
_absoluteLocation = new Uri(SiteOfOriginContainer.SiteOfOrigin, uriMinusInitialSlash);
}
#if DEBUG
if (SiteOfOriginContainer._traceSwitch.Enabled)
System.Diagnostics.Trace.TraceInformation(
DateTime.Now.ToLongTimeString() + " " + DateTime.Now.Millisecond + " " +
System.Threading.Thread.CurrentThread.ManagedThreadId +
": SiteOfOriginPart: Making web request to " + _absoluteLocation);
#endif
// For performance reasons it is better to open local files directly
// rather than make a FileWebRequest.
Stream responseStream;
if (SecurityHelper.AreStringTypesEqual(_absoluteLocation.Scheme, Uri.UriSchemeFile))
{
responseStream = HandleFileSource(onlyNeedContentType);
}
else
{
responseStream = HandleWebSource(onlyNeedContentType);
}
return responseStream;
}
}
private Stream HandleFileSource(bool onlyNeedContentType)
{
#if DEBUG
if (SiteOfOriginContainer._traceSwitch.Enabled)
System.Diagnostics.Trace.TraceInformation(
DateTime.Now.ToLongTimeString() + " " + DateTime.Now.Millisecond + " " +
System.Threading.Thread.CurrentThread.ManagedThreadId +
": Opening local file " + _absoluteLocation);
#endif
if (_contentType == MS.Internal.ContentType.Empty)
{
_contentType = MS.Internal.MimeTypeMapper.GetMimeTypeFromUri(Uri);
}
if (!onlyNeedContentType)
{
return File.OpenRead(_absoluteLocation.LocalPath);
}
return null;
}
private Stream HandleWebSource(bool onlyNeedContentType)
{
WebResponse response = WpfWebRequestHelper.CreateRequestAndGetResponse(_absoluteLocation);
Stream responseStream = response.GetResponseStream();
#if DEBUG
if (SiteOfOriginContainer._traceSwitch.Enabled)
System.Diagnostics.Trace.TraceInformation(
DateTime.Now.ToLongTimeString() + " " + DateTime.Now.Millisecond + " " +
System.Threading.Thread.CurrentThread.ManagedThreadId +
": Successfully retrieved stream from " + _absoluteLocation);
#endif
if (_contentType == MS.Internal.ContentType.Empty)
{
#if DEBUG
if (SiteOfOriginContainer._traceSwitch.Enabled)
System.Diagnostics.Trace.TraceInformation(
DateTime.Now.ToLongTimeString() + " " + DateTime.Now.Millisecond + " " +
System.Threading.Thread.CurrentThread.ManagedThreadId +
": SiteOfOriginPart: Setting _contentType");
#endif
_contentType = WpfWebRequestHelper.GetContentType(response);
}
if (onlyNeedContentType)
{
_cacheStream = responseStream;
}
return responseStream;
}
#endregion
//-----------------------------------------------------
//
// Private Fields
//
//------------------------------------------------------
#region Private Members
Uri _absoluteLocation = null;
ContentType _contentType = MS.Internal.ContentType.Empty;
Stream _cacheStream = null;
private Object _globalLock = new Object();
#endregion Private Members
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- ExtentJoinTreeNode.cs
- XPathNavigatorReader.cs
- WorkflowRuntime.cs
- MemberPath.cs
- QilReplaceVisitor.cs
- cache.cs
- ToolStripContentPanel.cs
- MailHeaderInfo.cs
- ProtectedConfigurationProviderCollection.cs
- ImportContext.cs
- Application.cs
- XmlEncoding.cs
- _SslSessionsCache.cs
- SafeArrayRankMismatchException.cs
- TriggerAction.cs
- HitTestParameters3D.cs
- ErrorActivity.cs
- SrgsOneOf.cs
- MD5.cs
- EnterpriseServicesHelper.cs
- XmlCharType.cs
- Imaging.cs
- AlternationConverter.cs
- PolyQuadraticBezierSegment.cs
- CollectionBase.cs
- ProjectionPlan.cs
- DateTimeFormat.cs
- ArrayExtension.cs
- TemplateBamlTreeBuilder.cs
- Signature.cs
- LogSwitch.cs
- DelegatingTypeDescriptionProvider.cs
- CodeSnippetExpression.cs
- XmlLangPropertyAttribute.cs
- CopyOnWriteList.cs
- ClientData.cs
- SqlDataReaderSmi.cs
- RelationshipConverter.cs
- System.Data_BID.cs
- ListItemCollection.cs
- AccessDataSourceView.cs
- ProcessProtocolHandler.cs
- DecoratedNameAttribute.cs
- AlphabeticalEnumConverter.cs
- SmiGettersStream.cs
- ComUdtElementCollection.cs
- ByeMessage11.cs
- ReadContentAsBinaryHelper.cs
- DataGridViewRowsAddedEventArgs.cs
- CodeExporter.cs
- XPathQueryGenerator.cs
- SchemaMerger.cs
- XmlSubtreeReader.cs
- CurrentTimeZone.cs
- SchemaElementLookUpTable.cs
- FileCodeGroup.cs
- HttpException.cs
- DeploymentSection.cs
- ResourcePool.cs
- EdmType.cs
- ArgumentException.cs
- Int64.cs
- ParserContext.cs
- BasePattern.cs
- GlobalProxySelection.cs
- WindowsFont.cs
- X509SecurityTokenAuthenticator.cs
- PasswordPropertyTextAttribute.cs
- JournalEntryListConverter.cs
- DesignBindingPropertyDescriptor.cs
- PackageDocument.cs
- ProtectedConfigurationProviderCollection.cs
- MatrixIndependentAnimationStorage.cs
- StackOverflowException.cs
- DateTimeOffsetConverter.cs
- HttpWebRequest.cs
- DetailsViewActionList.cs
- DataGridViewDataErrorEventArgs.cs
- ProxyGenerationError.cs
- XamlClipboardData.cs
- EntityDataSourceStatementEditorForm.cs
- WindowsRichEditRange.cs
- TransactionScope.cs
- EdmToObjectNamespaceMap.cs
- GridItemProviderWrapper.cs
- RadioButtonPopupAdapter.cs
- ErasingStroke.cs
- UshortList2.cs
- ExtensionElement.cs
- InputProcessorProfiles.cs
- MemoryResponseElement.cs
- ECDiffieHellmanPublicKey.cs
- FilteredAttributeCollection.cs
- BooleanConverter.cs
- TcpClientChannel.cs
- ProtocolsConfiguration.cs
- SqlError.cs
- ParentQuery.cs
- DbFunctionCommandTree.cs
- TableRowGroup.cs