Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / BuildTasks / MS / Internal / Tasks / TaskFileService.cs / 3 / TaskFileService.cs
//----------------------------------------------------------------------------
//
//
// Copyright (C) Microsoft Corporation. All rights reserved.
//
//
// Description:
//
// File service for the input source files in a build task.
//
// The service does something like below:
//
// return stream for a given source file,
// get last modification time in memory or disk.
//
// or get the link metadata part of a source file.
//
// It returns above information no matter the task is hosted
// inside VS or not.
//
// History:
// 01/24/2007, weibz created it
// 03/28/2007, hamidm added support of Exists, Delete, PutFileContents, IsRealBuild
//
//---------------------------------------------------------------------------
using System;
using System.IO;
using Microsoft.Build.Utilities;
using System.Diagnostics;
using System.Text;
using System.Security.Cryptography;
namespace MS.Internal
{
//
// Declaration of interface ITaskFileService
//
internal interface ITaskFileService
{
//
// Get content stream for a given source file
//
Stream GetContent(string srcFile);
//
// Get MD5 Check Sum for a given source file
//
byte[] GetChecksum(string srcFile, Guid hashGuid);
//
// Get the last modificatin time for a given file.
//
DateTime GetLastChangeTime(string srcFile);
//
// Checks to see if file exists
//
bool Exists(string fileName);
//
// Deletes the specified file
//
void Delete(string fileName);
//
// Save content stream for the given destination file
//
void WriteFile(byte[] contentArray, string destinationFile);
//
// Determines if this is a real build operation or an
// intellisense build operation
//
bool IsRealBuild {get;}
}
//
// TaskFileService class
//
// This class can be used by different build tasks to get source file
// service, the instance is created by those build tasks when task's
// Execute( ) method is called.
//
internal class TaskFileService : MarshalByRefObject, ITaskFileService
{
//
// Ctor
//
public TaskFileService(Task buildTask)
{
_buildTask = buildTask;
_hostFileManager = null;
_isRealBuild = null;
}
#region ITaskFileService
//
// Get content stream for a given source file, the content could
// come from memory or disk based on the build host environment.
//
// It is the caller's responsibility to close the stream.
//
public Stream GetContent(string srcFile)
{
Stream fileStream = null;
if (String.IsNullOrEmpty(srcFile))
{
throw new ArgumentNullException("srcFile");
}
if (HostFileManager != null)
{
//
// Build Host environment has a FileManager, use it to get
// file content from edit buffer in memory. GetFileContents
// removes the BOM before returning the string.
//
string strFileContent = HostFileManager.GetFileContents(srcFile);
// IVsMsBuildTaskFileManager.GetFileContents should never return null.
// GetBytes might throw when input is null, but that should be fine.
//
// For xaml file, UTF8 is the standard encoding
//
UTF8Encoding utf8Encoding = new UTF8Encoding();
byte[] baFileContent = utf8Encoding.GetBytes(strFileContent);
fileStream = new MemoryStream(baFileContent);
}
else
{
fileStream = File.OpenRead(srcFile);
}
return fileStream;
}
public byte[] GetChecksum(string fileName, Guid md5HashGuid)
{
byte[] hashData=null;
if (HostFileManager != null)
{
object docData = HostFileManager.GetFileDocData(fileName);
IPersistFileCheckSum fileChecksummer = docData as IPersistFileCheckSum;
if (fileChecksummer != null)
{
byte[] tempBytes = new byte[1024];
int actualSize;
fileChecksummer.CalculateCheckSum(md5HashGuid, tempBytes.Length, tempBytes, out actualSize);
hashData = new byte[actualSize];
for (int i = 0; i < actualSize; i++)
{
hashData[i] = tempBytes[i];
}
}
}
if (hashData == null)
{
HashAlgorithm MD5cryptoProvider = new MD5CryptoServiceProvider();
using (Stream fileStream = File.OpenRead(fileName))
{
hashData = MD5cryptoProvider.ComputeHash(fileStream);
}
}
return hashData;
}
//
// Get the last modificatin time for a given file.
//
public DateTime GetLastChangeTime(string srcFile)
{
DateTime lastChangeDT = new DateTime(0);
if (String.IsNullOrEmpty(srcFile))
{
throw new ArgumentNullException("srcFile");
}
if (HostFileManager != null)
{
long fileTime = HostFileManager.GetFileLastChangeTime(srcFile);
lastChangeDT = DateTime.FromFileTime(fileTime);
}
else
{
lastChangeDT = File.GetLastWriteTime(srcFile);
}
return lastChangeDT;
}
//
// Checks to see if file exists
//
public bool Exists(string fileName)
{
bool fileExists = false;
if (fileName == null)
{
throw new ArgumentNullException("fileName");
}
if (HostFileManager != null)
{
fileExists = HostFileManager.Exists(fileName, IsRealBuild);
}
else
{
fileExists = File.Exists(fileName);
}
return fileExists;
}
//
// Deletes the specified file
//
public void Delete(string fileName)
{
if (fileName == null)
{
throw new ArgumentNullException("fileName");
}
if (HostFileManager != null)
{
HostFileManager.Delete(fileName);
}
else
{
File.Delete(fileName);
}
}
//
// Save content stream for the given destination file
// UTF8 BOM should not be added to the contentArray. This
// method adds BOM before writing file to disk.
//
public void WriteFile(byte[] contentArray, string destinationFile)
{
if (String.IsNullOrEmpty(destinationFile))
{
throw new ArgumentNullException("destinationFile");
}
if (contentArray == null)
{
throw new ArgumentNullException("contentArray");
}
UTF8Encoding utf8Encoding = new UTF8Encoding();
string contentStr = utf8Encoding.GetString(contentArray);
if (HostFileManager != null)
{
// PutGeneratedFileContents adds BOM to the file when saving
// to memory or disk.
HostFileManager.PutGeneratedFileContents(destinationFile, contentStr);
}
else
{
// Add BOM for UTF8Encoding since the input contentArray is not supposed to
// have it already.
using (StreamWriter sw = new StreamWriter(destinationFile, false, new UTF8Encoding(true)))
{
sw.WriteLine(contentStr);
}
}
}
//
// Tells if this is an intellisense build or a real build.
// Caching the result since this is called a lot of times.
//
public bool IsRealBuild
{
get
{
if (_isRealBuild == null)
{
bool isRealBuild = true;
if (HostFileManager != null)
{
isRealBuild = HostFileManager.IsRealBuildOperation();
}
_isRealBuild = isRealBuild;
}
return _isRealBuild.Value;
}
}
#endregion ITaskFileService
#region private property
//
// Get the FileManager implemented by the Host system
//
private IVsMSBuildTaskFileManager HostFileManager
{
get
{
if (_hostFileManager == null)
{
if (_buildTask != null && _buildTask.HostObject != null)
{
_hostFileManager = _buildTask.HostObject as IVsMSBuildTaskFileManager;
}
}
return _hostFileManager;
}
}
#endregion private property
#region private data field
private Task _buildTask;
private IVsMSBuildTaskFileManager _hostFileManager;
private Nullable _isRealBuild;
#endregion private data field
}
}
// 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:
//
// File service for the input source files in a build task.
//
// The service does something like below:
//
// return stream for a given source file,
// get last modification time in memory or disk.
//
// or get the link metadata part of a source file.
//
// It returns above information no matter the task is hosted
// inside VS or not.
//
// History:
// 01/24/2007, weibz created it
// 03/28/2007, hamidm added support of Exists, Delete, PutFileContents, IsRealBuild
//
//---------------------------------------------------------------------------
using System;
using System.IO;
using Microsoft.Build.Utilities;
using System.Diagnostics;
using System.Text;
using System.Security.Cryptography;
namespace MS.Internal
{
//
// Declaration of interface ITaskFileService
//
internal interface ITaskFileService
{
//
// Get content stream for a given source file
//
Stream GetContent(string srcFile);
//
// Get MD5 Check Sum for a given source file
//
byte[] GetChecksum(string srcFile, Guid hashGuid);
//
// Get the last modificatin time for a given file.
//
DateTime GetLastChangeTime(string srcFile);
//
// Checks to see if file exists
//
bool Exists(string fileName);
//
// Deletes the specified file
//
void Delete(string fileName);
//
// Save content stream for the given destination file
//
void WriteFile(byte[] contentArray, string destinationFile);
//
// Determines if this is a real build operation or an
// intellisense build operation
//
bool IsRealBuild {get;}
}
//
// TaskFileService class
//
// This class can be used by different build tasks to get source file
// service, the instance is created by those build tasks when task's
// Execute( ) method is called.
//
internal class TaskFileService : MarshalByRefObject, ITaskFileService
{
//
// Ctor
//
public TaskFileService(Task buildTask)
{
_buildTask = buildTask;
_hostFileManager = null;
_isRealBuild = null;
}
#region ITaskFileService
//
// Get content stream for a given source file, the content could
// come from memory or disk based on the build host environment.
//
// It is the caller's responsibility to close the stream.
//
public Stream GetContent(string srcFile)
{
Stream fileStream = null;
if (String.IsNullOrEmpty(srcFile))
{
throw new ArgumentNullException("srcFile");
}
if (HostFileManager != null)
{
//
// Build Host environment has a FileManager, use it to get
// file content from edit buffer in memory. GetFileContents
// removes the BOM before returning the string.
//
string strFileContent = HostFileManager.GetFileContents(srcFile);
// IVsMsBuildTaskFileManager.GetFileContents should never return null.
// GetBytes might throw when input is null, but that should be fine.
//
// For xaml file, UTF8 is the standard encoding
//
UTF8Encoding utf8Encoding = new UTF8Encoding();
byte[] baFileContent = utf8Encoding.GetBytes(strFileContent);
fileStream = new MemoryStream(baFileContent);
}
else
{
fileStream = File.OpenRead(srcFile);
}
return fileStream;
}
public byte[] GetChecksum(string fileName, Guid md5HashGuid)
{
byte[] hashData=null;
if (HostFileManager != null)
{
object docData = HostFileManager.GetFileDocData(fileName);
IPersistFileCheckSum fileChecksummer = docData as IPersistFileCheckSum;
if (fileChecksummer != null)
{
byte[] tempBytes = new byte[1024];
int actualSize;
fileChecksummer.CalculateCheckSum(md5HashGuid, tempBytes.Length, tempBytes, out actualSize);
hashData = new byte[actualSize];
for (int i = 0; i < actualSize; i++)
{
hashData[i] = tempBytes[i];
}
}
}
if (hashData == null)
{
HashAlgorithm MD5cryptoProvider = new MD5CryptoServiceProvider();
using (Stream fileStream = File.OpenRead(fileName))
{
hashData = MD5cryptoProvider.ComputeHash(fileStream);
}
}
return hashData;
}
//
// Get the last modificatin time for a given file.
//
public DateTime GetLastChangeTime(string srcFile)
{
DateTime lastChangeDT = new DateTime(0);
if (String.IsNullOrEmpty(srcFile))
{
throw new ArgumentNullException("srcFile");
}
if (HostFileManager != null)
{
long fileTime = HostFileManager.GetFileLastChangeTime(srcFile);
lastChangeDT = DateTime.FromFileTime(fileTime);
}
else
{
lastChangeDT = File.GetLastWriteTime(srcFile);
}
return lastChangeDT;
}
//
// Checks to see if file exists
//
public bool Exists(string fileName)
{
bool fileExists = false;
if (fileName == null)
{
throw new ArgumentNullException("fileName");
}
if (HostFileManager != null)
{
fileExists = HostFileManager.Exists(fileName, IsRealBuild);
}
else
{
fileExists = File.Exists(fileName);
}
return fileExists;
}
//
// Deletes the specified file
//
public void Delete(string fileName)
{
if (fileName == null)
{
throw new ArgumentNullException("fileName");
}
if (HostFileManager != null)
{
HostFileManager.Delete(fileName);
}
else
{
File.Delete(fileName);
}
}
//
// Save content stream for the given destination file
// UTF8 BOM should not be added to the contentArray. This
// method adds BOM before writing file to disk.
//
public void WriteFile(byte[] contentArray, string destinationFile)
{
if (String.IsNullOrEmpty(destinationFile))
{
throw new ArgumentNullException("destinationFile");
}
if (contentArray == null)
{
throw new ArgumentNullException("contentArray");
}
UTF8Encoding utf8Encoding = new UTF8Encoding();
string contentStr = utf8Encoding.GetString(contentArray);
if (HostFileManager != null)
{
// PutGeneratedFileContents adds BOM to the file when saving
// to memory or disk.
HostFileManager.PutGeneratedFileContents(destinationFile, contentStr);
}
else
{
// Add BOM for UTF8Encoding since the input contentArray is not supposed to
// have it already.
using (StreamWriter sw = new StreamWriter(destinationFile, false, new UTF8Encoding(true)))
{
sw.WriteLine(contentStr);
}
}
}
//
// Tells if this is an intellisense build or a real build.
// Caching the result since this is called a lot of times.
//
public bool IsRealBuild
{
get
{
if (_isRealBuild == null)
{
bool isRealBuild = true;
if (HostFileManager != null)
{
isRealBuild = HostFileManager.IsRealBuildOperation();
}
_isRealBuild = isRealBuild;
}
return _isRealBuild.Value;
}
}
#endregion ITaskFileService
#region private property
//
// Get the FileManager implemented by the Host system
//
private IVsMSBuildTaskFileManager HostFileManager
{
get
{
if (_hostFileManager == null)
{
if (_buildTask != null && _buildTask.HostObject != null)
{
_hostFileManager = _buildTask.HostObject as IVsMSBuildTaskFileManager;
}
}
return _hostFileManager;
}
}
#endregion private property
#region private data field
private Task _buildTask;
private IVsMSBuildTaskFileManager _hostFileManager;
private Nullable _isRealBuild;
#endregion private data field
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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