public void Rollback(Manifest manifest)
{
try
{
string filename = string.Empty;
foreach (var file in manifest.ManifestFiles.Files)
{
filename = Path.Combine(backupFilePath, file.Source);
File.Copy(filename, Path.Combine(Path.GetFullPath(manifest.Application.Location), file.Source));
}
Directory.Delete(backupFilePath, true);
}
catch
{
}
}
private void Backup(Manifest manifest)
{
try
{
string sourcePath = Path.GetFullPath(manifest.Application.Location);
string s_filename = string.Empty;
string t_filename = string.Empty;
if (!Directory.Exists(backupFilePath))
{
Directory.CreateDirectory(backupFilePath);
}
foreach (var file in manifest.ManifestFiles.Files)
{
t_filename = Path.Combine(backupFilePath, file.Source);
s_filename = Path.Combine(sourcePath, file.Source);
if (File.Exists(s_filename))
{
File.Copy(s_filename, t_filename, true);
}
}
}
catch
{
}
}
public void Activate(Manifest[] manifests)
{
foreach (var m in manifests)
{
OnActivationInitializing(new ManifestEventArgs() { Manifest = m });
Backup(m);
ActivationStartedEventArgs e = new ActivationStartedEventArgs() { Manifest = m };
OnActivationStarted(e);
if (e.Cancel)
{
Clear();
break;
}
else
{
fileCopyer.CopyAsync(m, downloader.TempPath);
}
}
}
public void DownloadAsync(Manifest[] manifests)
{
foreach (var m in manifests)
{
downloader.DownloadAsync(m);
}
}
/// <summary>
/// 异步下载并指定任务Id
/// </summary>
/// <param name="manifest"></param>
/// <param name="taskId"></param>
public void DownloadAsync(Manifest manifest,object taskId)
{
AsyncOperation asyncOp = AsyncOperationManager.CreateOperation(taskId);
lock (userStateToLifetime.SyncRoot)
{
if (userStateToLifetime.Contains(taskId))
{
throw new ArgumentException("参数taskId必须是唯一的", "taskId");
}
userStateToLifetime[taskId] = asyncOp;
}
WorkerEventHandler workerDelegate = new WorkerEventHandler(DownloadWorker);
workerDelegate.BeginInvoke(asyncOp, null, null);
}
private void Init(Manifest manifest)
{
this.manifest = manifest;
webClient.BaseAddress = manifest.ManifestFiles.BaseUrl;
webClient.Credentials = CredentialCache.DefaultCredentials;
webClient.Encoding = Encoding.UTF8;
}
/// <summary>
/// 同步下载
/// </summary>
/// <param name="manifest"></param>
public void Download(Manifest manifest)
{
Init(manifest);
foreach (var file in manifest.ManifestFiles.Files)
{
string serverFileName = Path.Combine(manifest.ManifestFiles.BaseUrl, file.Source);
string clientFileName = Path.Combine(tempPath, file.Source);
Uri uri = new Uri(serverFileName);
if (!Directory.Exists(Path.GetDirectoryName(clientFileName)))
{
Directory.CreateDirectory(Path.GetDirectoryName(clientFileName));
}
webClient.DownloadFile(uri, clientFileName);
}
}
/// <summary>
/// 异步下载
/// </summary>
/// <param name="manifest"></param>
public void DownloadAsync(Manifest manifest)
{
Init(manifest);
DownloadAsync(manifest,defaultTaskId);
}
public void Copy(Manifest manifest, string sourcePath)
{
string[] sourceFiles = null;
string[] targetFiles = null;
GetFiles(manifest, sourcePath, out sourceFiles, out targetFiles);
for (int i = 0; i < sourceFiles.Length; i++)
{
if (!Directory.Exists(Path.GetDirectoryName(targetFiles[i])))
{
Directory.CreateDirectory(Path.GetDirectoryName(targetFiles[i]));
}
File.Copy(sourceFiles[i], targetFiles[i], true);
}
}
private void GetFiles(Manifest manifest, string sourcePath, out string[] sourceFiles, out string[] targetFiles)
{
sourceFiles = new string[manifest.ManifestFiles.Files.Length];
targetFiles = new string[manifest.ManifestFiles.Files.Length];
string path = Path.GetFullPath(manifest.Application.Location);
for (int i = 0; i < manifest.ManifestFiles.Files.Length; i++)
{
sourceFiles[i] = Path.Combine(sourcePath, manifest.ManifestFiles.Files[i].Source);
targetFiles[i] = Path.Combine(path, manifest.ManifestFiles.Files[i].Source);
}
}
private void FileCopyWorker(Manifest manifest, string sourcePath, AsyncOperation asyncOp)
{
Exception exception = null;
FileCopyProgressChangedEventArgs e = null;
Stream rStream = null;
Stream wStream = null;
double writeBytes = 0;
string[] sourceFiles = null;
string[] targetFiles = null;
GetFiles(manifest, sourcePath, out sourceFiles, out targetFiles);
if (!TaskCanceled(asyncOp.UserSuppliedState))
{
try
{
double totalBytes = GetFileLength(sourceFiles);
byte[] buffer = new byte[writeFileLength];
int len = 0;
int offset = 0;
for (int i = 0; i < sourceFiles.Length; i++)
{
try
{
if (!Directory.Exists(Path.GetDirectoryName(targetFiles[i])))
{
Directory.CreateDirectory(Path.GetDirectoryName(targetFiles[i]));
}
rStream = new FileStream(sourceFiles[i], FileMode.Open, FileAccess.Read, FileShare.None);
wStream = new FileStream(targetFiles[i], FileMode.Create, FileAccess.Write, FileShare.None);
while ((len = rStream.Read(buffer, offset, writeFileLength)) > 0)
{
wStream.Write(buffer, offset, len);
writeBytes += len;
e = new FileCopyProgressChangedEventArgs((int)(writeBytes / totalBytes * 100), asyncOp.UserSuppliedState);
e.SourceFileName = sourceFiles[i];
e.TargetFileName = targetFiles[i];
e.TotalBytesToCopy = totalBytes;
e.BytesToCopy = len;
e.Manifest = manifest;
asyncOp.Post(this.onProgressReportDelegate, e);
Thread.Sleep(1);
}
}
finally
{
DisposeStream(wStream);
DisposeStream(rStream);
}
}
}
catch (Exception ex)
{
exception = ex;
OnFileCopyError(new FileCopyErrorEventArgs() { Error = ex, Manifest = manifest });
}
if (exception == null && targetFiles.Length > 0)
{
//解压文件
string fileName = targetFiles.First();
ZipHelper.DeCompressionZip(fileName, Path.GetFullPath("."));
File.Delete(fileName);
}
}
this.CompletionMethod(manifest, exception, TaskCanceled(asyncOp.UserSuppliedState), asyncOp);
}
private void CompletionMethod(Manifest manifest, Exception exception, bool canceled, AsyncOperation asyncOp)
{
if (!canceled)
{
lock (userStateToLifetime.SyncRoot)
{
userStateToLifetime.Remove(asyncOp.UserSuppliedState);
}
}
FileCopyCompletedEventArgs e = new FileCopyCompletedEventArgs(exception, canceled, asyncOp.UserSuppliedState);
e.Manifest = manifest;
asyncOp.PostOperationCompleted(onCompletedDelegate, e);
}
public void CopyAsync(Manifest manifest, string sourcePath)
{
CopyAsync(manifest, sourcePath, defaultTaskId);
}
