protected override void DeleteLog(string path = LOG_FILE)
{
if (LogExists(path))
{
_directory.DeleteFile(path);
}
}
public bool VerifyStoreIsUsable()
{
if (_verified.HasValue)
{
return(_verified.Value);
}
_verified = false;
try {
if (String.IsNullOrEmpty(SubDirectory))
{
return(false);
}
string filename = Path.GetRandomFileName();
using (IsolatedStorageDirectory dir = GetStorageDirectory()) {
dir.WriteFile(filename, "test");
dir.DeleteFile(filename);
}
} catch (Exception ex) {
LogAccessor.Log.FormattedError(typeof(IsolatedStorageQueueStore), "Problem verifing isolated storage store: {0}", ex.Message);
return(false);
}
_verified = true;
return(true);
}
private void DeleteConfig(string storeId = DEFAULT_STORE)
{
using (var dir = new IsolatedStorageDirectory(storeId)) {
if (dir.FileExists(CONFIG_FILENAME))
{
dir.DeleteFile(CONFIG_FILENAME);
}
}
}
private void Delete(IsolatedStorageDirectory dir, string id)
{
// retry delete up to 3 times
for (int retry = 0; retry < 3; retry++)
{
try {
string manifestFilename = GetManifestFilename(id);
dir.DeleteFile(manifestFilename);
string errorFilename = GetErrorFilename(id);
dir.DeleteFile(errorFilename);
return;
} catch (IOException ex) {
LogAccessor.Log.FormattedError(typeof(FolderQueueStore), ex, "Problem deleting id '{0}' from isolated storage", id);
Thread.Sleep(50);
}
}
}
public int Cleanup(DateTime target)
{
int counter = 0;
using (IsolatedStorageDirectory dir = GetStorageDirectory()) {
// first delete all files older than the target date
IEnumerable <IsolatedStorageFileInfo> files = dir.GetFilesWithTimes().Where(m => m.CreationTime < target && !m.FileName.EndsWith(".config", StringComparison.OrdinalIgnoreCase));
foreach (IsolatedStorageFileInfo file in files)
{
try {
if (dir.DeleteFile(file.FileName))
{
counter++;
}
} catch (Exception ex) {
LogAccessor.Log.FormattedError(typeof(IsolatedStorageQueueStore), ex, "Error deleting file '{0}' from isolated storage", file);
}
}
// check to see if we have an excessive amount of manifests
List <IsolatedStorageFileInfo> manifests = GetManifestsSortedByNewestCreateFirst(dir);
if (manifests.Count <= 250)
{
return(counter);
}
// delete all but the newest 250
foreach (IsolatedStorageFileInfo file in manifests.Skip(250))
{
try {
var manifest = dir.ReadFile <Manifest>(file.FileName);
if (manifest == null || !manifest.CanDiscard)
{
continue;
}
Delete(dir, manifest.Id);
counter++;
} catch (Exception ex) {
LogAccessor.Log.FormattedError(typeof(IsolatedStorageQueueStore), ex, "Error deleting manifest file '{0}' from isolated storage", file);
}
}
}
return(counter);
}
private static void ReadSavedConfiguration(ClientConfiguration configuration, IExceptionlessLogAccessor logAccessor)
{
try {
for (int retry = 0; retry < 2; retry++)
{
using (var dir = new IsolatedStorageDirectory(configuration.StoreId)) {
try {
if (!dir.FileExists(ClientConfiguration.CachedServerConfigFile))
{
return;
}
var savedConfig = dir.ReadFile <Dictionary <string, string> >(ClientConfiguration.CachedServerConfigFile);
if (savedConfig == null)
{
return;
}
foreach (string key in savedConfig.Keys)
{
configuration[key] = savedConfig[key];
}
return;
} catch (JsonReaderException) {
// try deleting the invalid config file so we don't keep trying to read it.
try {
dir.DeleteFile(ClientConfiguration.CachedServerConfigFile);
} catch {}
} catch (Exception ex) {
// File is being used by another process or thread or the file does not exist.
logAccessor.Log.FormattedError(typeof(ClientConfigurationReader), ex, "Error while reading settings from the configuration file: {0}", ex.Message);
Thread.Sleep(50);
}
} // storage
} // retry
} catch (Exception ex) {
logAccessor.Log.FormattedError(typeof(ClientConfigurationReader), ex, "Error while reading settings from the configuration file: {0}", ex.Message);
}
}
private void Delete(IsolatedStorageDirectory dir, string id) {
// retry delete up to 3 times
for (int retry = 0; retry < 3; retry++) {
try {
string manifestFilename = GetManifestFilename(id);
dir.DeleteFile(manifestFilename);
string errorFilename = GetErrorFilename(id);
dir.DeleteFile(errorFilename);
return;
} catch (IOException ex) {
LogAccessor.Log.FormattedError(typeof(IsolatedStorageQueueStore), ex, "Problem deleting id '{0}' from isolated storage", id);
Thread.Sleep(50);
}
}
}
private static void ReadSavedConfiguration(ClientConfiguration configuration, IExceptionlessLogAccessor logAccessor) {
try {
for (int retry = 0; retry < 2; retry++) {
using (var dir = new IsolatedStorageDirectory(configuration.StoreId)) {
try {
if (!dir.FileExists(ClientConfiguration.CachedServerConfigFile))
return;
var savedConfig = dir.ReadFile<Dictionary<string, string>>(ClientConfiguration.CachedServerConfigFile);
if (savedConfig == null)
return;
foreach (string key in savedConfig.Keys)
configuration[key] = savedConfig[key];
return;
} catch (JsonReaderException) {
// try deleting the invalid config file so we don't keep trying to read it.
try {
dir.DeleteFile(ClientConfiguration.CachedServerConfigFile);
} catch {}
} catch (Exception ex) {
// File is being used by another process or thread or the file does not exist.
logAccessor.Log.FormattedError(typeof(ClientConfigurationReader), ex, "Error while reading settings from the configuration file: {0}", ex.Message);
Thread.Sleep(50);
}
} // storage
} // retry
} catch (Exception ex) {
logAccessor.Log.FormattedError(typeof(ClientConfigurationReader), ex, "Error while reading settings from the configuration file: {0}", ex.Message);
}
}
private void DeleteConfig(string storeId = DEFAULT_STORE) {
using (var dir = new IsolatedStorageDirectory(storeId)) {
if (dir.FileExists(CONFIG_FILENAME))
dir.DeleteFile(CONFIG_FILENAME);
}
}