/// <summary>
/// 检查指定实体的Hash值，决定是否需要进行数据库同步
/// </summary>
/// <returns>同步返回true，不同步返回false</returns>
public static bool CheckSyncByHash(this IEnumerable <IEntityHash> entityHashes, IServiceProvider provider, ILogger logger)
{
IEntityHash[] hashes = entityHashes as IEntityHash[] ?? entityHashes.ToArray();
if (hashes.Length == 0)
{
return(false);
}
string hash = hashes.Select(m => m.GetHash()).ExpandAndToString().ToMd5Hash();
IKeyValueStore store = provider.GetService <IKeyValueStore>();
string entityType = hashes[0].GetType().FullName;
string key = $"OSharp.Initialize.SyncToDatabaseHash-{entityType}";
IKeyValue keyValue = store.GetByKey(key);
if (keyValue != null && keyValue.Value?.ToString() == hash)
{
logger.LogInformation($"{hashes.Length}条基础数据“{entityType}”的内容签名 {hash} 与上次相同，取消数据库同步");
return(false);
}
store.CreateOrUpdate(key, hash).GetAwaiter().GetResult();
logger.LogInformation($"{hashes.Length}条基础数据“{entityType}”的内容签名 {hash} 与上次 {keyValue?.Value} 不同，将进行数据库同步");
return(true);
}
