/// <summary>
/// Initializes a new instance of the <see cref="AzureTableStorageErrorLog"/> class
/// using a dictionary of configured settings.
/// </summary>
public AzureTableStorageErrorLog(IDictionary config)
{
if (config == null)
{
throw new ArgumentNullException("config");
}
var connectionString = ElmahHelper.GetConnectionString(config);
//
// If there is no connection string to use then throw an
// exception to abort construction.
//
if (connectionString.Length == 0)
{
throw new ApplicationException("Connection string is missing for the Azure Table Storage error log.");
}
//
// Get custom table name for storage and validate
//
var tableName = ElmahHelper.GetTableName(config);
if (tableName.Length == 0)
{
tableName = DefaultTableName;
}
if (!Regex.IsMatch(tableName, TableValidationRegex))
{
throw new ApplicationException("Name for table in Azure Table Storage is not a valid name.");
}
var cloudStorageAccount = CloudStorageAccount.Parse(connectionString);
var tableClient = cloudStorageAccount.CreateCloudTableClient();
_cloudTable = tableClient.GetTableReference(tableName);
_cloudTable.CreateIfNotExists();
//
// Set the application name as this implementation provides
// per-application isolation over a single store.
//
var appName = ElmahHelper.GetApplicationName(config);
if (appName.Length > MaxAppNameLength)
{
throw new ApplicationException(string.Format(
"Application name is too long. Maximum length allowed is {0} characters.",
MaxAppNameLength.ToString("N0")));
}
ApplicationName = appName;
}
/// <summary>
/// Initializes a new instance of the <see cref="AzureTableStorageErrorLog"/> class
/// using a dictionary of configured settings.
/// </summary>
public AzureTableStorageErrorLog(IDictionary config)
{
if (config == null)
{
throw new ArgumentNullException("config");
}
var connectionString = ElmahHelper.GetConnectionString(config);
//
// If there is no connection string to use then throw an
// exception to abort construction.
//
if (connectionString.Length == 0)
{
throw new ApplicationException("Connection string is missing for the Azure Table Storage error log.");
}
this.storageAccount = CloudStorageAccount.Parse(connectionString);
var tableClient = storageAccount.CreateCloudTableClient();
_cloudTable = tableClient.GetTableReference(this.GetElmahLogTableName());
_cloudTable.CreateIfNotExists();
//
// Set the application name as this implementation provides
// per-application isolation over a single store.
//
var appName = config.Find("applicationName", string.Empty);
if (appName.Length > MaxAppNameLength)
{
throw new ApplicationException(string.Format(
"Application name is too long. Maximum length allowed is {0} characters.",
MaxAppNameLength.ToString("N0")));
}
ApplicationName = appName;
}
/// <summary>
/// Initializes a new instance of the <see cref="AzureTableStorageErrorLog"/> class
/// using a dictionary of configured settings.
/// </summary>
public AzureTableStorageErrorLog(IDictionary config)
{
if (config == null)
{
throw new ArgumentNullException("config");
}
#region Read properties of ErrorLog config item
//
// Set the application name as this implementation provides
// per-application isolation over a single store.
//
var appName = config.Find("applicationName", string.Empty);
//
// Set the table name. This implementation provides
// table-per-application-config isolation over a single store.
//
var tableName = config.Find("tableName", string.Empty);
#endregion Read properties of ErrorLog config item
#region Read properties of ErrorLog connection string
var cfgBuilder = new System.Data.Common.DbConnectionStringBuilder();
var originalConnectionString = ElmahHelper.GetConnectionString(config);
cfgBuilder.ConnectionString = originalConnectionString;
// Try to override ApplicationName from connection string
if (cfgBuilder.ContainsKey("ApplicationName"))
{
appName = (string)cfgBuilder["ApplicationName"];
cfgBuilder.Remove("ApplicationName");
}
// Try to override TableName from connection string
if (cfgBuilder.ContainsKey("TableName"))
{
tableName = (string)cfgBuilder["TableName"];
cfgBuilder.Remove("TableName");
}
#endregion Read properties of ErrorLog connection string
if (appName.Length > MaxAppNameLength)
{
throw new ApplicationException(string.Format(
"Application name is too long. Maximum length allowed is {0} characters.",
MaxAppNameLength.ToString("N0")));
}
if (tableName.Length > MaxTableNameLength)
{
throw new ApplicationException(string.Format(
"Table name is too long. Maximum length allowed is {0} characters.",
MaxTableNameLength.ToString("N0")));
}
if (!string.IsNullOrWhiteSpace(appName))
{
ApplicationName = appName;
}
if (!string.IsNullOrWhiteSpace(tableName))
{
TableName = tableName;
}
var newConnectionString = string.Join(";", originalConnectionString.Split(';').Where(item => !item.StartsWith("ApplicationName=", StringComparison.OrdinalIgnoreCase) && !item.StartsWith("TableName=", StringComparison.OrdinalIgnoreCase)));
var newConnectionStringBuilder = new System.Data.Common.DbConnectionStringBuilder();
newConnectionStringBuilder.ConnectionString = newConnectionString;
if (!cfgBuilder.EquivalentTo(newConnectionStringBuilder))
{
throw new ApplicationException("Connection string contains invalid parameters.");
}
//
// If there is no connection string to use then throw an
// exception to abort construction.
//
if (cfgBuilder.ConnectionString.Length == 0)
{
throw new ApplicationException("Connection string is missing for the Azure Table Storage error log.");
}
var cloudStorageAccount = CloudStorageAccount.Parse(newConnectionString);
var tableClient = cloudStorageAccount.CreateCloudTableClient();
_cloudTable = tableClient.GetTableReference(TableName);
_cloudTable.CreateIfNotExists();
}
