/// <summary>
/// Check if the database is initialized. With internal Sqlite databases, this will always return true, because the constructor initializes the database.
/// </summary>
/// <returns>True.</returns>
public override bool IsInitialized()
{
DbExpression e1 = new DbExpression(
_ORM.GetColumnName <DedupeConfig>(nameof(DedupeConfig.Key)),
DbOperators.Equals,
"min_chunk_size");
DbExpression e2 = new DbExpression(
_ORM.GetColumnName <DedupeConfig>(nameof(DedupeConfig.Key)),
DbOperators.Equals,
"max_chunk_size");
DbExpression e3 = new DbExpression(
_ORM.GetColumnName <DedupeConfig>(nameof(DedupeConfig.Key)),
DbOperators.Equals,
"shift_count");
DbExpression e4 = new DbExpression(
_ORM.GetColumnName <DedupeConfig>(nameof(DedupeConfig.Key)),
DbOperators.Equals,
"boundary_check_bytes");
DedupeConfig dc1 = _ORM.SelectFirst <DedupeConfig>(e1);
DedupeConfig dc2 = _ORM.SelectFirst <DedupeConfig>(e2);
DedupeConfig dc3 = _ORM.SelectFirst <DedupeConfig>(e3);
DedupeConfig dc4 = _ORM.SelectFirst <DedupeConfig>(e4);
if (dc1 != null && dc2 != null && dc3 != null && dc4 != null)
{
return(true);
}
return(false);
}
/// <summary>
/// Add a configuration key-value pair.
/// </summary>
/// <param name="key">The key.</param>
/// <param name="val">The value.</param>
public override void AddConfigValue(string key, string val)
{
if (String.IsNullOrEmpty(key))
{
throw new ArgumentNullException(nameof(key));
}
if (String.IsNullOrEmpty(val))
{
throw new ArgumentNullException(nameof(val));
}
key = DedupeCommon.SanitizeString(key);
val = DedupeCommon.SanitizeString(val);
DbExpression e = new DbExpression(
_ORM.GetColumnName <DedupeConfig>(nameof(DedupeConfig.Key)),
DbOperators.Equals,
key);
DedupeConfig config = _ORM.SelectFirst <DedupeConfig>(e);
if (config != null)
{
_ORM.Delete <DedupeConfig>(config);
}
config = new DedupeConfig(key, val);
config = _ORM.Insert <DedupeConfig>(config);
}
/// <summary>
/// Retrieve a configuration value.
/// </summary>
/// <param name="key">The key.</param>
/// <returns>Value.</returns>
public override string GetConfigValue(string key)
{
if (String.IsNullOrEmpty(key))
{
throw new ArgumentNullException(nameof(key));
}
key = DedupeCommon.SanitizeString(key);
DbExpression e = new DbExpression(
_ORM.GetColumnName <DedupeConfig>(nameof(DedupeConfig.Key)),
DbOperators.Equals,
key);
DedupeConfig config = _ORM.SelectFirst <DedupeConfig>(e);
if (config == null)
{
return(null);
}
return(config.Value);
}
