Object Storage Service:Query the storage capacity of a bucket (OSS SDK for Java 1.0)

Notas de uso

• Este tópico utiliza o endpoint público da região China (Hangzhou). Para acessar o OSS a partir de outros serviços da Alibaba Cloud na mesma região, use um endpoint interno. Para mais detalhes sobre as regiões e os endpoints compatíveis, consulte Regions and endpoints.

• Neste tópico, você obtém as credenciais de acesso por meio de variáveis de ambiente. Para mais informações, consulte 配置访问凭证.

• Este tópico demonstra como criar uma instância OSSClient com um endpoint do OSS. Para configurações alternativas, como usar um domínio personalizado ou autenticar com credenciais do Security Token Service (STS), consulte Client configuration.

• Para consultar a capacidade de armazenamento de um bucket, você deve ter a permissão oss:GetBucketStat. Para mais informações, consulte Grant a custom policy.

Código de exemplo

O código a seguir recupera a capacidade de armazenamento de um bucket chamado examplebucket, bem como a quantidade e o volume de armazenamento dos objetos para cada classe de armazenamento no bucket.

import com.aliyun.oss.*;
import com.aliyun.oss.common.auth.*;
import com.aliyun.oss.common.comm.SignVersion;
import com.aliyun.oss.model.BucketStat;

public class Demo {
    public static void main(String[] args) throws Exception {
        // This example uses the endpoint of the China (Hangzhou) region. Specify the actual endpoint.
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // Obtain access credentials from environment variables. Before you run this code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are set.
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the bucket name. For example, examplebucket.
        String bucketName = "examplebucket";
        // Specify the region where the bucket is located. For example, if the bucket is in the China (Hangzhou) region, set the region to cn-hangzhou.
        String region = "cn-hangzhou";

        // Create an OSSClient instance.
        // When the OSSClient instance is no longer needed, call the shutdown method to release resources.
        ClientBuilderConfiguration clientBuilderConfiguration = new ClientBuilderConfiguration();
        clientBuilderConfiguration.setSignatureVersion(SignVersion.V4);
        OSS ossClient = OSSClientBuilder.create()
                .endpoint(endpoint)
                .credentialsProvider(credentialsProvider)
                .clientConfiguration(clientBuilderConfiguration)
                .region(region)
                .build();

        try {
            BucketStat stat = ossClient.getBucketStat(bucketName);
            // Get the total storage capacity of the bucket in bytes.
            System.out.println("StorageSize:"+stat.getStorageSize());
            // Get the total number of objects in the bucket.
            System.out.println("ObjectCount:"+stat.getObjectCount());
            // Get the number of multipart upload tasks that are initiated but not completed or aborted.
            System.out.println("MultipartUploadCount:"+stat.getMultipartUploadCount());
            // Get the storage capacity of Standard objects in bytes.
            System.out.println("StandardStorage:"+stat.getStandardStorage());
            // Get the number of Standard objects.
            System.out.println("StandardObjectCount:"+stat.getStandardObjectCount());
            // Get the number of LiveChannels in the bucket.
            System.out.println("LiveChannelCount:"+stat.getLiveChannelCount());
            // The time when the storage information was obtained. The value is a UNIX timestamp in seconds.
            System.out.println("LastModifiedTime:"+stat.getLastModifiedTime());
            // Get the billable storage capacity of Infrequent Access (IA) objects in bytes.
            System.out.println("InfrequentAccessStorage:"+stat.getInfrequentAccessStorage());
            // Get the actual storage capacity of IA objects in bytes.
            System.out.println("InfrequentAccessRealStorage:"+stat.getInfrequentAccessRealStorage());
            // Get the number of IA objects.
            System.out.println("InfrequentAccessObjectCount:"+stat.getInfrequentAccessObjectCount());
            // Get the billable storage capacity of Archive Storage objects in bytes.
            System.out.println("ArchiveStorage:"+stat.getArchiveStorage());
            // Get the actual storage capacity of Archive Storage objects in bytes.
            System.out.println("ArchiveRealStorage:"+stat.getArchiveRealStorage());
            // Get the number of Archive Storage objects.
            System.out.println("ArchiveObjectCount:"+stat.getArchiveObjectCount());
            // Get the billable storage capacity of Cold Archive objects in bytes.
            System.out.println("ColdArchiveStorage:"+stat.getColdArchiveStorage());
            // Get the actual storage capacity of Cold Archive objects in bytes.
            System.out.println("ColdArchiveRealStorage:"+stat.getColdArchiveRealStorage());
            // Get the number of Cold Archive objects.
            System.out.println("ColdArchiveObjectCount:"+stat.getColdArchiveObjectCount());
        } catch (OSSException oe) {
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
    }
}

Referências

Para mais informações sobre a operação de API que você pode chamar para recuperar a capacidade de armazenamento de um bucket, bem como a quantidade e o volume de armazenamento dos objetos para cada classe de armazenamento no bucket, consulte GetBucketStat.