get GCS file metadata using scala

Question

I want to get the time creation of files in GCS, I used the code below :

println(Files
  .getFileAttributeView(Paths.get("gs://datalake-dev/mu/tpu/file.0450138"), classOf[BasicFileAttributeView])
  .readAttributes.creationTime)

The problem is that the Paths.get function replace // with / so I will get gs:/datalake-dev/mu/tpu/file.0450138 instead of gs://datalake-dev/mu/tpu/file.0450138.

Anyone can help me with this ?

Thanks a lot !

Answer 1

I solved the problem by adding the following java code and then calling the java function in scala.

import com.google.cloud.storage.*;
import java.sql.Timestamp;

public class ExtractDate {
    public static String getTime(String fileName){
        String bucketName = "bucket-data";
        String blobName = "doc/files/"+fileName;
        // Instantiates a client
        Storage storage_client = StorageOptions.getDefaultInstance().getService();
        Bucket bucket = storage_client.get(bucketName);
        //val storage_client = Storage.
        BlobId blobId = BlobId.of(bucketName, blobName);
        Blob blob =  storage_client.get(blobId);
        Timestamp tmp = new Timestamp(bucket.get(blobName).getCreateTime());
        System.out.print(bucket.get(blobName).getContent());
       // return the year of the file date creation 
        return tmp.toString().substring(0,4);
    }
}