アーカイブオブジェクトを読み込む前にアーカイブオブジェクトを復元する必要があります。 アーカイブオブジェクトではないオブジェクトに対しては、restoreObject を呼び出さないでください。
アーカイブオブジェクトの状態変換プロセスは次のとおりです。
- アーカイブオブジェクトはフリーズ状態です。
- 復元のために送信した後、サーバーはオブジェクトを復元します。 オブジェクトは復元中の状態です。
- 復元後にオブジェクトを読むことができます。 オブジェクトの復元された状態は、既定では 1 日続きます。 この期間は最大 7 日間まで延長可能です。 この期間が終了すると、オブジェクトはフリーズ状態に戻ります。
次のコードを実行してオブジェクトを復元します。
#include "oss_api.h"
#include "aos_http_io.h"
const char *endpoint = "<yourEndpoint>";
const char *access_key_id = "<yourAccessKeyId>";
const char *access_key_secret = "<yourAccessKeySecret>";
const char *bucket_name = "<yourBucketName>";
const char *object_name = "<yourObjectName>";
const char *object_content = "More than just cloud.";
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);
aos_str_set(&options->config->access_key_id, access_key_id);
aos_str_set(&options->config->access_key_secret, access_key_secret);
/* Determine whether the CNAME is used. 0 indicates that the CNAME is not used. */
options->config->is_cname = 0;
/* Used to configure network parameters, such as timeout. */
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 networks and memories. */
if (aos_http_io_initialize(NULL, 0) ! = AOSE_OK) {
exit(1);
}
/* Memory pool used to manage memories, which is equivalent to apr_pool_t. The implementation code is included in the apr library. */
aos_pool_t *pool;
/* Re-create a new memory pool. The second parameter is NULL, indicating that it does not inherit from any other memory pools. */
aos_pool_create(&pool, NULL);
/* Create and initialize options. This parameter mainly includes global configuration information, such as endpoint, access_key_id, acces_key_secret, is_cname, and curl. */
oss_request_options_t *oss_client_options;
/* Allocate memories in the memory pool to options. */
oss_client_options = oss_request_options_create(pool);
/* Use oss_client_options to initialize client options. */
init_options(oss_client_options);
/* Initialization parameters. */
aos_string_t bucket;
aos_string_t object;
aos_list_t buffer;
oss_acl_e oss_acl = OSS_ACL_PRIVATE;
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);
headers = aos_table_make(pool, 0);
/* Create a bucket of the archive storage class. */
resp_status = oss_create_bucket_with_storage_class(oss_client_options, &bucket, oss_acl, OSS_STORAGE_CLASS_ARCHIVE, &resp_headers);
if (aos_status_is_ok(resp_status)) {
printf("create bucket succeeded\n");
} else {
printf("create bucket failed\n");
}
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 a file. */
resp_status = oss_put_object_from_buffer(oss_client_options, &bucket, &object, &buffer, headers, &resp_headers);
if (aos_status_is_ok(resp_status)) {
printf("put object from buffer succeeded\n");
} else {
printf("put object from buffer failed\n");
}
/* Restore the object. */
do {
headers = aos_table_make(pool, 0);
resp_status = oss_restore_object(oss_client_options, &bucket, &object, headers, &resp_headers);
printf("restore object resp_status->code: %d \n", resp_status->code);
if (resp_status->code ! = 409) {
break;
} else {
printf("restore object is already in progress, resp_status->code: %d \n", resp_status->code);
apr_sleep(5000);
}
} while (1);
/* Release the memory pool, that is, memories allocated to resources during the request. */
aos_pool_destroy(pool);
/* Release the allocated global resources. */
aos_http_io_deinitialize();
return 0;
}アーカイブストレージクラスの詳細については、「ストレージクラスの概要」をご参照ください。 関連するステータスコードの詳細については、「RestoreObject」をご参照ください。