Closed

[Minio] About dynamic blob storage container naming #741

yilmaz.atalar created 4 years ago

ABP Framework version: v4.0

Hi,

I want to create buckets dynamically at runtime (and named blob containers also) depends on incoming data (for example I want to store data with daily bucket names. If a record is created on 29-12-2020, my bucket name should be bucket-29-12-2020). But Abp supports blob container configuration while configuring services at startup. How can I achieve this functionality ?

Thanks for your help.

6 Answer(s)

liangshiwei created 4 years ago

Support Team Fullstack Developer

Hi,

You can customize the implementation of IBlobNamingNormalizer:

[Dependency(ReplaceServices = true)]
[ExposeServices(typeof(IBlobNamingNormalizer))]
public class MyMinioBlobNamingNormalizer : MinioBlobNamingNormalizer
{
    public override string NormalizeContainerName(string containerName)
    {
        containerName = base.NormalizeContainerName(containerName);

        return containerName.Replace("{date}", DateTime.Now.ToShortDateString());
    }
}

Your container:

[BlobContainerName("bucket-{date}")]
public class DayRollingContainer
{

}

0

yilmaz.atalar created 4 years ago

Thanks for your attention.

@liangshiwei, your approach should work but there is one missing point for my case. Date parameter may not be today. I need to set it explicitly at runtime.
0

liangshiwei created 4 years ago
Support Team Fullstack Developer

Hi,

You can change it according to your needs, for example, read a date from the settings.
0

yilmaz.atalar created 4 years ago

Hi,

I do not need to set it from a setting or a constant value. I want to set it according to a property of an entity. It is dynamic and changes on every user request to the application service. For example;

SaveBlob(1) -> Find record with id -> Read creation date -> 2020-01-05 -> Save blob to bucket "bucket-2020-01-05" SaveBlob(35) -> Find record with id -> Read creation date -> 2010-11-22 -> Save blob to bucket "bucket-2010-11-22"
0

yilmaz.atalar created 4 years ago

Hi,

I've achieved this by overriding MinioBlobNameCalculator, MinioBlobProvider and BlobContainerFactory. It should not be that hard. I think abp should support this functionality with an easy way.

Also, I think GetContainerName function of MinioBlobProvider has a bug. Configuration does not allow empty or null bucket names but that function checks for that and never uses true condition of comparison.

// always false because empty or null values are not allowed, application throws exception while starting up return configuration.BucketName.IsNullOrWhiteSpace() ? args.ContainerName : configuration.BucketName;
0

liangshiwei created 4 years ago
Support Team Fullstack Developer

You are right, We will fix it. thanks.