Object Storage Service:OSS ディレクトリの管理

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.common.auth.*;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import java.io.ByteArrayInputStream;

public class Demo {

    public static void main(String[] args) throws Exception {
        // In this example, the endpoint of the China (Hangzhou) region is used. Specify your actual endpoint. 
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // For security purposes, we recommend that you do not save access credentials in the project code. In this example, access credentials are obtained from environment variables. Before you run the sample code, make sure that the environment variables are configured. 
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the name of the bucket. Example: examplebucket. 
        String bucketName = "examplebucket";
        // Specify the name of the directory that you want to create by using Method 1. 
        String dirName = "exampledir/";
        // Specify the name of the directory that you want to create by using Method 2. 
        String dirName2 = "exampledir1/";

        // Create an OSSClient instance. 
        OSS ossClient = new OSSClientBuilder().build(endpoint, credentialsProvider);

        try {
            // Method 1: Call the createDirectory operation to create a directory. Before you use this method to create a directory, you must enable the hierarchical namespace feature. 
            ossClient.createDirectory(bucketName, dirName);

            // Method 2: Upload an empty string to create a directory. 
            ossClient.putObject(bucketName, dirName2, new ByteArrayInputStream("".getBytes()));
        } 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();
            }
        }
    }
}

<?php
if (is_file(__DIR__ . '/../autoload.php')) {
    require_once __DIR__ . '/../autoload.php';
}
if (is_file(__DIR__ . '/../vendor/autoload.php')) {
    require_once __DIR__ . '/../vendor/autoload.php';
}

use OSS\Credentials\EnvironmentVariableCredentialsProvider;
use OSS\OssClient;
use OSS\CoreOssException;
// Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
$provider = new EnvironmentVariableCredentialsProvider();
// Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. 
$endpoint = "yourEndpoint";
// Specify the name of the bucket. Example: examplebucket. 
$bucket= "examplebucket";
// Specify the name of the directory. The directory name must end with a forward slash (/). 
$object = "exampledir/";
$content = "";
try{
    $config = array(
        "provider" => $provider,
        "endpoint" => $endpoint,
    );
    $ossClient = new OssClient($config);

    $ossClient->putObject($bucket, $object, $content);
} catch(OssException $e) {
    printf(__FUNCTION__ . ": FAILED\n");
    printf($e->getMessage() . "\n");
    return;
}
print(__FUNCTION__ . "OK" . "\n");

// You can configure headers in upload requests to specify information about the uploaded string. For example, you can set the object ACL to private and configure the user metadata of the object. 
$options = array(
    OssClient::OSS_HEADERS => array(
        'x-oss-object-acl' => 'private',
        'x-oss-meta-info' => 'your info'
    ),
);
try{
    $config = array(
        "provider" => $provider,
        "endpoint" => $endpoint,
    );
    $ossClient = new OssClient($config);

    $ossClient->putObject($bucket, $object, $content, $options);
} catch(OssException $e) {
    printf(__FUNCTION__ . ": FAILED\n");
    printf($e->getMessage() . "\n");
    return;
}
print(__FUNCTION__ . "OK" . "\n");           

const OSS = require('ali-oss');

const client = new OSS({
  // Specify the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the region to oss-cn-hangzhou. 
  region: 'yourregion',
  // Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
  accessKeyId: process.env.OSS_ACCESS_KEY_ID,
  accessKeySecret: process.env.OSS_ACCESS_KEY_SECRET
  // Specify the name of the bucket. 
  bucket: 'examplebucket', 
});

async function putBuffer () {
  try {
    // Specify the name of the directory. The directory name must end with a forward slash (/). 
    const result = await client.put('exampledir/', new Buffer(''));
    console.log(result);
  } catch (e) {
    console.log(e);
  }
}

putBuffer();

# -*- coding: utf-8 -*-

import oss2
from oss2.credentials import EnvironmentVariableCredentialsProvider

# Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
auth = oss2.ProviderAuth(EnvironmentVariableCredentialsProvider())
// Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. 
# Specify the name of the bucket. 
bucket = oss2.Bucket(auth, 'https://oss-cn-hangzhou.aliyuncs.com', 'examplebucket')

# Specify the name of the directory. The directory name must end with a forward slash (/). 
bucket.put_object('exampledir/', '')    

using System.Text;
using Aliyun.OSS;

// Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. 
var endpoint = "yourEndpoint";
// Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
var accessKeyId = Environment.GetEnvironmentVariable("OSS_ACCESS_KEY_ID");
var accessKeySecret = Environment.GetEnvironmentVariable("OSS_ACCESS_KEY_SECRET");
// Specify the name of the bucket. Example: examplebucket. 
var bucketName = "examplebucket";
// Specify the name of the directory. The directory name must end with a forward slash (/). 
var objectName = "exampledir/";
var objectContent = "";

// Create an OSSClient instance. 
var client = new OssClient(endpoint, accessKeyId, accessKeySecret);
try
{
    byte[] binaryData = Encoding.ASCII.GetBytes(objectContent);
    MemoryStream requestContent = new MemoryStream(binaryData);
    // Create the directory. 
    client.PutObject(bucketName, objectName, requestContent);
    Console.WriteLine("Put object succeeded");
}
catch (Exception ex)
{
    Console.WriteLine("Put object failed, {0}", ex.Message);
}

#include "oss_api.h"
#include "aos_http_io.h"
/* Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. */
const char *endpoint = "yourEndpoint";

/* Specify the name of the bucket. Example: examplebucket. */
const char *bucket_name = "examplebucket";
/* Specify the name of the directory. The directory name must end with a forward slash (/). */
const char *object_name = "exampledir/";
const char *object_content = "";
void init_options(oss_request_options_t *options)
{
    options->config = oss_config_create(options->pool);
    /* Use a char* string to initialize aos_string_t. */
    aos_str_set(&options->config->endpoint, endpoint);
    /* Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. */    
    aos_str_set(&options->config->access_key_id, getenv("OSS_ACCESS_KEY_ID"));
    aos_str_set(&options->config->access_key_secret, getenv("OSS_ACCESS_KEY_SECRET"));
    /* Specify whether to use CNAME. The value 0 indicates that CNAME is not used. */
    options->config->is_cname = 0;
    /* Configure network parameters, such as the timeout period. */
    options->ctl = aos_http_controller_create(options->pool, 0);
}
int main(int argc, char *argv[])
{
    /* Call the aos_http_io_initialize method in main() to initialize global resources, such as network resources and memory resources. */
    if (aos_http_io_initialize(NULL, 0) != AOSE_OK) {
        exit(1);
    }
    /* Create a memory pool to manage memory. aos_pool_t is equivalent to apr_pool_t. The code that is used to create a memory pool is included in the APR library. */
    aos_pool_t *pool;
    /* Create a memory pool. The value of the second parameter is NULL. This value specifies that the pool does not inherit other memory pools. */
    aos_pool_create(&pool, NULL);
    /* Create and initialize options. This parameter includes global configuration information, such as endpoint, access_key_id, access_key_secret, is_cname, and curl. */
    oss_request_options_t *oss_client_options;
    /* Allocate memory resources in the memory pool to the options. */
    oss_client_options = oss_request_options_create(pool);
    /* Initialize oss_client_options. */
    init_options(oss_client_options);
    /* Initialize the parameters. */
    aos_string_t bucket;
    aos_string_t object;
    aos_list_t buffer;
    aos_buf_t *content = NULL;
    aos_table_t *headers = NULL;
    aos_table_t *resp_headers = NULL; 
    aos_status_t *resp_status = NULL; 
    aos_str_set(&bucket, bucket_name);
    aos_str_set(&object, object_name);
    aos_list_init(&buffer);
    content = aos_buf_pack(oss_client_options->pool, object_content, strlen(object_content));
    aos_list_add_tail(&content->node, &buffer);
    /* Upload the object. */
    resp_status = oss_put_object_from_buffer(oss_client_options, &bucket, &object, &buffer, headers, &resp_headers);
    /* Determine whether the object is uploaded. */
    if (aos_status_is_ok(resp_status)) {
        printf("put object from buffer succeeded\n");
    } else {
        printf("put object from buffer failed\n");      
    }
    /* Release the memory pool. This operation releases memory resources allocated for the request. */
    aos_pool_destroy(pool);
    /* Release the allocated global resources. */
    aos_http_io_deinitialize();
    return 0;
}

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.common.auth.*;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.*;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.List;

public class Demo {

    public static void main(String[] args) throws Exception {
        // In this example, the endpoint of the China (Hangzhou) region is used. Specify your actual endpoint. 
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // For security purposes, we recommend that you do not save access credentials in the project code. In this example, access credentials are obtained from environment variables. Before you run the sample code, make sure that the environment variables are configured. 
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the name of the bucket. Example: examplebucket. 
        String bucketName = "examplebucket";
        // Specify the absolute path of the directory. Do not include the bucket name in the absolute path. 
        String directoryName = "exampledir";
        // Specify the full path of the directory that you want to delete. Do not include the bucket name in the full path. 
        final String prefix = "log/";

        // Create an OSSClient instance. 
        OSS ossClient = new OSSClientBuilder().build(endpoint, credentialsProvider);

        try {
            // Method 1: Call deleteDirectory to recursively delete a directory. Before you use this method to delete a directory, you must enable the hierarchical namespace feature. 
            DeleteDirectoryRequest deleteDirectoryRequest = new DeleteDirectoryRequest(bucketName, directoryName);
            deleteDirectoryRequest.setDeleteRecursive(true);
            DeleteDirectoryResult deleteDirectoryResult = ossClient.deleteDirectory(deleteDirectoryRequest);

            // Display the deletion result. 
            // You can delete up to 100 directories and objects at a time. If only a portion of directories and objects are deleted, the server returns nextDeleteToken. You can use nextDeleteToken to continue deleting the remaining data. 
            // nextDeleteToken helps the server find the object or directory after which the next delete operation begins. 
            String nextDeleteToken = deleteDirectoryResult.getNextDeleteToken();
            System.out.println("delete next token:" + nextDeleteToken);
            // Display the absolute path of the deleted directory. 
            System.out.println("delete dir name :" + deleteDirectoryResult.getDirectoryName());
            // Display the total number of deleted objects and directories. 
            System.out.println("delete number:" + deleteDirectoryResult.getDeleteNumber());


            // Method 2: Call listObjects to traverse and delete the directory and all objects in the directory. 
            String nextMarker = null;
            ObjectListing objectListing = null;
            do {
                ListObjectsRequest listObjectsRequest = new ListObjectsRequest(bucketName)
                        .withPrefix(prefix)
                        .withMarker(nextMarker);

                objectListing = ossClient.listObjects(listObjectsRequest);
                if (objectListing.getObjectSummaries().size() > 0) {
                    List<String> keys = new ArrayList<String>();
                    for (OSSObjectSummary s : objectListing.getObjectSummaries()) {
                        System.out.println("key name: " + s.getKey());
                        keys.add(s.getKey());
                    }
                    DeleteObjectsRequest deleteObjectsRequest = new DeleteObjectsRequest(bucketName).withKeys(keys).withEncodingType("url");
                    DeleteObjectsResult deleteObjectsResult = ossClient.deleteObjects(deleteObjectsRequest);
                    List;String> deletedObjects = deleteObjectsResult.getDeletedObjects();
                    try {
                        for(String obj : deletedObjects) {
                            String deleteObj =  URLDecoder.decode(obj, "UTF-8");
                            System.out.println(deleteObj);
                        }
                    } catch (UnsupportedEncodingException e) {
                        e.printStackTrace();
                    }
                }

                nextMarker = objectListing.getNextMarker();
            } while (objectListing.isTruncated());
        } 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();
            }
        }
    }
}

<?php
if (is_file(__DIR__ . '/../autoload.php')) {
   require_once __DIR__ . '/../autoload.php';
}
if (is_file(__DIR__ . '/../vendor/autoload.php')) {
   require_once __DIR__ . '/../vendor/autoload.php';
}

use OSS\OssClient;
use OSS\Core\OssException;
// Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
$accessKeyId = getenv("OSS_ACCESS_KEY_ID");
$accessKeySecret = getenv("OSS_ACCESS_KEY_SECRET");
// Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. 
$endpoint = "yourEndpoint";
// Specify the name of the bucket. 
$bucket = "examplebucket";

try {
   $ossClient = new OssClient($accessKeyId, $accessKeySecret, $endpoint, false);
   $option = array(
      OssClient::OSS_MARKER => null,
      // Specify the full path of the directory that you want to delete. Do not include the bucket name in the full path. 
      OssClient::OSS_PREFIX => "log/",
      OssClient::OSS_DELIMITER=>'',
   );
   $bool = true;
   while ($bool){
      $result = $ossClient->listObjects($bucket,$option);
      $objects = array();
      if(count($result->getObjectList()) > 0){
         foreach ($result->getObjectList() as $key => $info){
            printf("key name:".$info->getKey().PHP_EOL);
            $objects[] = $info->getKey();
         }
         // Delete the directory and all objects in the directory. 
         $delObjects = $ossClient->deleteObjects($bucket, $objects);
         foreach ($delObjects as $info){
            $obj = strval($info);
            printf("Delete ".$obj." : Success" . PHP_EOL);
         }
      }

      if($result->getIsTruncated() === 'true'){
         $option[OssClient::OSS_MARKER] = $result->getNextMarker();
      }else{
         $bool = false;
      }
   }
   printf("Delete Objects : OK" . PHP_EOL);
} catch (OssException $e) {
   printf("Delete Objects : Failed" . PHP_EOL);
   printf($e->getMessage() . PHP_EOL);
   return;
}

const OSS = require('ali-oss');

const client = new OSS({
  // Specify the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the region to oss-cn-hangzhou. 
  region: 'yourregion',
  // Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
  accessKeyId: process.env.OSS_ACCESS_KEY_ID,
  accessKeySecret: process.env.OSS_ACCESS_KEY_SECRET,
  // Specify the name of the bucket. 
  bucket: 'yourbucketname'
});

// Handle request failures, prevent the interruption of promise.all, and return failure causes and the names of objects that failed to be deleted. 
async function handleDel(name, options) {
  try {
    await client.delete(name);
  } catch (error) {
    error.failObjectName = name;
    return error;
  }
}

// Delete multiple objects at a time. 
async function deletePrefix(prefix) {
  const list = await client.list({
    prefix: prefix,
  });

  list.objects = list.objects || [];
  const result = await Promise.all(list.objects.map((v) => handleDel(v.name)));
  console.log(result);
}
// Delete the directory and all objects in the directory. 
deletePrefix('log/')

# -*- coding: utf-8 -*-
import oss2
from oss2.credentials import EnvironmentVariableCredentialsProvider

# Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
auth = oss2.ProviderAuth(EnvironmentVariableCredentialsProvider())
// Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. 
# Specify the name of the bucket. 
bucket = oss2.Bucket(auth, 'https://oss-cn-hangzhou.aliyuncs.com', 'examplebucket')
prefix = "exampledir/"

// Delete the directory and all objects in the directory. 
for obj in oss2.ObjectIterator(bucket, prefix=prefix):
    bucket.delete_object(obj.key)

package main

import (
    "fmt"
    "os"

    "github.com/aliyun/aliyun-oss-go-sdk/oss"
)

func main() {
    // Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
    provider, err := oss.NewEnvironmentVariableCredentialsProvider()
    if err != nil {
        fmt.Println("Error:", err)
        os.Exit(-1)
    }

    // Create an OSSClient instance. 
    // Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. Specify your actual endpoint. 
    client, err := oss.New("yourEndpoint", "", "", oss.SetCredentialsProvider(&provider))
    if err != nil {
        fmt.Println("Error:", err)
        os.Exit(-1)
    }

    // Specify the name of the bucket. 
    bucket, err := client.Bucket("examplebucket")
    if err != nil {
        fmt.Println("Error:", err)
        os.Exit(-1)
    }
    
    marker := oss.Marker("")
    // Specify the full path of the directory that you want to delete. Do not include the bucket name in the full path. 
    prefix := oss.Prefix("log/")
    count := 0
    for {
        lor, err := bucket.ListObjects(marker, prefix)
        if err != nil {
            fmt.Println("Error:", err)
            os.Exit(-1)
        }

        objects := []string{}
        for _, object := range lor.Objects {
            objects = append(objects, object.Key)
        }
        // Delete the directory and all objects in the directory. 
        // Set the oss.DeleteObjectsQuiet parameter to true. This setting indicates that OSS does not return a message after objects are deleted. 
        delRes, err := bucket.DeleteObjects(objects, oss.DeleteObjectsQuiet(true))
        if err != nil {
            fmt.Println("Error:", err)
            os.Exit(-1)
        }

        if len(delRes.DeletedObjects) > 0 {
            fmt.Println("these objects deleted failure,", delRes.DeletedObjects)
            os.Exit(-1)
        }

        count += len(objects)

        prefix = oss.Prefix(lor.Prefix)
        marker = oss.Marker(lor.NextMarker)
        if !lor.IsTruncated {
            break
        }
    }
    fmt.Printf("success,total delete object count:%d\n", count)
}

#include <alibabacloud/oss/OssClient.h>
using namespace AlibabaCloud::OSS;

int main(void)
{
    /* Initialize information about the account that is used to access OSS. */
            
    /* Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. */
    std::string Endpoint = "yourEndpoint";
    /* Specify the name of the bucket. */
    std::string BucketName = "examplebucket";
    /* Specify the full path of the directory that you want to delete. Do not include the bucket name in the full path. */
    std::string keyPrefix = "log/";

    /* Initialize resources, such as network resources. */
    InitializeSdk();

    ClientConfiguration conf;
    /* Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. */
    auto credentialsProvider = std::make_shared<EnvironmentVariableCredentialsProvider>();
    OssClient client(Endpoint, credentialsProvider, conf);

    std::string nextMarker = "";
    bool isTruncated = false;
    do {            
            ListObjectsRequest request(BucketName);            
            request.setPrefix(keyPrefix);
            request.setMarker(nextMarker);
            auto outcome = client.ListObjects(request);

            if (!outcome.isSuccess()) {
                /* Handle exceptions. */
                std::cout << "ListObjects fail" <<
                ",code:" << outcome.error().Code() <<
                ",message:" << outcome.error().Message() <<
                ",requestId:" << outcome.error().RequestId() << std::endl;
                break;
            }
            for (const auto& object : outcome.result().ObjectSummarys()) {
                DeleteObjectRequest request(BucketName, object.Key());
                /* Delete the directory and all objects in the directory. */
                auto delResult = client.DeleteObject(request);
            }
            nextMarker = outcome.result().NextMarker();
            isTruncated = outcome.result().IsTruncated();
    } while (isTruncated);

    /* Release resources, such as network resources. */
    ShutdownSdk();
    return 0;
}