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Check if file exists instead of catching exceptions

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This commit is contained in:
Bond_009 2019-01-27 17:00:17 +01:00
parent 1a3543e5a5
commit ffe79c8982
6 changed files with 73 additions and 99 deletions
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9
Emby.Server.Implementations/AppBase/BaseConfigurationManager.cs
View File

@ -246,14 +246,15 @@ namespace Emby.Server.Implementations.AppBase
private object LoadConfiguration(string path, Type configurationType)
{
if (!File.Exists(path))
{
return Activator.CreateInstance(configurationType);
}
try
{
return XmlSerializer.DeserializeFromFile(configurationType, path);
}
catch (FileNotFoundException)
{
return Activator.CreateInstance(configurationType);
}
catch (IOException)
{
return Activator.CreateInstance(configurationType);

30
Emby.Server.Implementations/HttpClientManager/HttpClientManager.cs
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@ -286,28 +286,18 @@ namespace Emby.Server.Implementations.HttpClientManager
private HttpResponseInfo GetCachedResponse(string responseCachePath, TimeSpan cacheLength, string url)
{
try
if (File.Exists(responseCachePath)
&& _fileSystem.GetLastWriteTimeUtc(responseCachePath).Add(cacheLength) > DateTime.UtcNow)
{
if (_fileSystem.GetLastWriteTimeUtc(responseCachePath).Add(cacheLength) > DateTime.UtcNow)
var stream = _fileSystem.GetFileStream(responseCachePath, FileOpenMode.Open, FileAccessMode.Read, FileShareMode.Read, true);
return new HttpResponseInfo
{
var stream = _fileSystem.GetFileStream(responseCachePath, FileOpenMode.Open, FileAccessMode.Read, FileShareMode.Read, true);
return new HttpResponseInfo
{
ResponseUrl = url,
Content = stream,
StatusCode = HttpStatusCode.OK,
ContentLength = stream.Length
};
}
}
catch (FileNotFoundException) // REVIEW: @bond Is this really faster?
{
}
catch (DirectoryNotFoundException)
{
ResponseUrl = url,
Content = stream,
StatusCode = HttpStatusCode.OK,
ContentLength = stream.Length
};
}
return null;

47
Emby.Server.Implementations/Library/LibraryManager.cs
View File

@ -395,38 +395,33 @@ namespace Emby.Server.Implementations.Library
foreach (var fileSystemInfo in item.GetDeletePaths().ToList())
{
try
if (File.Exists(fileSystemInfo.FullName))
{
_logger.LogDebug("Deleting path {path}", fileSystemInfo.FullName);
if (fileSystemInfo.IsDirectory)
try
{
_fileSystem.DeleteDirectory(fileSystemInfo.FullName, true);
_logger.LogDebug("Deleting path {path}", fileSystemInfo.FullName);
if (fileSystemInfo.IsDirectory)
{
_fileSystem.DeleteDirectory(fileSystemInfo.FullName, true);
}
else
{
_fileSystem.DeleteFile(fileSystemInfo.FullName);
}
}
else
catch (IOException)
{
_fileSystem.DeleteFile(fileSystemInfo.FullName);
if (isRequiredForDelete)
{
throw;
}
}
}
catch (FileNotFoundException)
{
// may have already been deleted manually by user
}
catch (DirectoryNotFoundException)
{
// may have already been deleted manually by user
}
catch (IOException)
{
if (isRequiredForDelete)
catch (UnauthorizedAccessException)
{
throw;
}
}
catch (UnauthorizedAccessException)
{
if (isRequiredForDelete)
{
throw;
if (isRequiredForDelete)
{
throw;
}
}
}

18
Emby.Server.Implementations/Library/UserManager.cs
View File

@ -1029,6 +1029,11 @@ namespace Emby.Server.Implementations.Library
{
var path = GetPolicyFilePath(user);
if (!File.Exists(path))
{
return GetDefaultPolicy(user);
}
try
{
lock (_policySyncLock)
@ -1036,10 +1041,6 @@ namespace Emby.Server.Implementations.Library
return (UserPolicy)_xmlSerializer.DeserializeFromFile(typeof(UserPolicy), path);
}
}
catch (FileNotFoundException)
{
return GetDefaultPolicy(user);
}
catch (IOException)
{
return GetDefaultPolicy(user);
@ -1128,6 +1129,11 @@ namespace Emby.Server.Implementations.Library
{
var path = GetConfigurationFilePath(user);
if (!File.Exists(path))
{
return new UserConfiguration();
}
try
{
lock (_configSyncLock)
@ -1135,10 +1141,6 @@ namespace Emby.Server.Implementations.Library
return (UserConfiguration)_xmlSerializer.DeserializeFromFile(typeof(UserConfiguration), path);
}
}
catch (FileNotFoundException)
{
return new UserConfiguration();
}
catch (IOException)
{
return new UserConfiguration();

21
Emby.Server.Implementations/ScheduledTasks/ChapterImagesTask.cs
View File

@ -101,17 +101,20 @@ namespace Emby.Server.Implementations.ScheduledTasks
List<string> previouslyFailedImages;
try
if (File.Exists(failHistoryPath))
{
previouslyFailedImages = _fileSystem.ReadAllText(failHistoryPath)
.Split(new[] { '|' }, StringSplitOptions.RemoveEmptyEntries)
.ToList();
try
{
previouslyFailedImages = _fileSystem.ReadAllText(failHistoryPath)
.Split(new[] { '|' }, StringSplitOptions.RemoveEmptyEntries)
.ToList();
}
catch (IOException)
{
previouslyFailedImages = new List<string>();
}
}
catch (FileNotFoundException)
{
previouslyFailedImages = new List<string>();
}
catch (IOException)
else
{
previouslyFailedImages = new List<string>();
}

47
Emby.Server.Implementations/ScheduledTasks/ScheduledTaskWorker.cs
View File

@ -129,21 +129,16 @@ namespace Emby.Server.Implementations.ScheduledTasks
{
if (_lastExecutionResult == null && !_readFromFile)
{
try
if (File.Exists(path))
{
_lastExecutionResult = JsonSerializer.DeserializeFromFile<TaskResult>(path);
}
catch (DirectoryNotFoundException)
{
// File doesn't exist. No biggie
}
catch (FileNotFoundException)
{
// File doesn't exist. No biggie
}
catch (Exception ex)
{
Logger.LogError(ex, "Error deserializing {path}", path);
try
{
_lastExecutionResult = JsonSerializer.DeserializeFromFile<TaskResult>(path);
}
catch (Exception ex)
{
Logger.LogError(ex, "Error deserializing {File}", path);
}
}
_readFromFile = true;
}
@ -532,28 +527,16 @@ namespace Emby.Server.Implementations.ScheduledTasks
private TaskTriggerInfo[] LoadTriggerSettings()
{
try
{
var list = JsonSerializer.DeserializeFromFile<IEnumerable<TaskTriggerInfo>>(GetConfigurationFilePath());
if (list != null)
{
return list.ToArray();
}
}
catch (FileNotFoundException)
string path = GetConfigurationFilePath();
if (!File.Exists(path))
{
// File doesn't exist. No biggie. Return defaults.
GetDefaultTriggers();
}
catch (DirectoryNotFoundException)
{
// File doesn't exist. No biggie. Return defaults.
}
catch
{
}
return GetDefaultTriggers();
var list = JsonSerializer.DeserializeFromFile<TaskTriggerInfo[]>(path);
return list ?? GetDefaultTriggers();
}
private TaskTriggerInfo[] GetDefaultTriggers()