设置生命周期规则

参数描述

桶生命周期配置结构obs_lifecycle_conf描述如下表：

设置对象转换策略

以下代码展示了如何设置最新版本对象和历史版本对象的转换策略：

static void test_set_bucket_lifecycle_configuration1()
{
    obs_status  ret_status = OBS_STATUS_BUTT;
    // 创建并初始化option
    obs_options option;
    init_obs_options(&option);
    option.bucket_options.host_name = "<your-endpoint>";
    option.bucket_options.bucket_name = "<Your bucketname>";

    // 认证用的ak和sk硬编码到代码中或者明文存储都有很大的安全风险，建议在配置文件或者环境变量中密文存放，使用时解密，确保安全；本示例以ak和sk保存在环境变量中为例，运行本示例前请先在本地环境中设置环境变量ACCESS_KEY_ID和SECRET_ACCESS_KEY。
    // 您可以登录访问管理控制台获取访问密钥AK/SK，获取方式请参见https://support.huaweicloud.com/usermanual-ca/ca_01_0003.html
    option.bucket_options.access_key = getenv("ACCESS_KEY_ID");
    option.bucket_options.secret_access_key = getenv("SECRET_ACCESS_KEY");
    // 设置完成的回调函数
    obs_response_handler response_handler =
    { 
        NULL, &response_complete_callback
    };
    obs_lifecycle_conf bucket_lifecycle_conf;
    memset(&bucket_lifecycle_conf, 0, sizeof(obs_lifecycle_conf)); 
    //生命周期规则的id
    bucket_lifecycle_conf.id = "test3"; 
    // 指定前缀"test"
    bucket_lifecycle_conf.prefix = "bcd"; 
    // 该生命周期规则生效
    bucket_lifecycle_conf.status = "Enabled"; 
    // 指定满足前缀的对象创建10天后过期 
    bucket_lifecycle_conf.days = "10"; 
    obs_lifecycle_transtion transition;
    memset(&transition, 0, sizeof(obs_lifecycle_transtion));
    // 指定满足前缀的对象创建30天后转换 
    transition.days = "30";
    // 指定对象转换后的存储类型 
    transition.storage_class = OBS_STORAGE_CLASS_STANDARD_IA;
    bucket_lifecycle_conf.transition = &transition;
    bucket_lifecycle_conf.transition_num = 1;
    obs_lifecycle_noncurrent_transtion noncurrent_transition;
    memset(&noncurrent_transition, 0, sizeof(obs_lifecycle_noncurrent_transtion));
    // 指定满足前缀的对象的历史版本30天后转换 
    noncurrent_transition.noncurrent_version_days = "30";
    // 指定满足前缀的对象的历史版本转换后的存储类型 
    noncurrent_transition.storage_class = OBS_STORAGE_CLASS_STANDARD_IA;
    bucket_lifecycle_conf. noncurrent_version_transition = &noncurrent_transition;
    bucket_lifecycle_conf.noncurrent_version_transition_num = 1;
    set_bucket_lifecycle_configuration(&option, &bucket_lifecycle_conf, 1, 
                    &response_handler, &ret_status);
    if (OBS_STATUS_OK == ret_status) {
        printf("set bucket lifecycle configuration success.\n");
    }
    else
    {
        printf("set bucket lifecycle configuration failed(%s).\n", 
                    obs_get_status_name(ret_status));
    }
}

设置对象过期时间

以下代码展示了如何设置最新版本对象和历史版本对象的过期时间：

static void test_set_bucket_lifecycle_configuration2()
{
    obs_options option;
    obs_status  ret_status = OBS_STATUS_BUTT;
    // 设置option
    init_obs_options(&option);
    option.bucket_options.host_name = HOST_NAME;
    option.bucket_options.bucket_name = bucket_name;

    //从环境变量读取ak/sk
    option.bucket_options.access_key = getenv("ACCESS_KEY_ID");
    option.bucket_options.secret_access_key = getenv("SECRET_ACCESS_KEY");
    // 设置完成的回调函数
    obs_response_handler response_handler =
    { 
        NULL, &response_complete_callback
    };
    obs_lifecycle_conf bucket_lifecycle_conf;
    memset(&bucket_lifecycle_conf, 0, sizeof(obs_lifecycle_conf)); 
    //生命周期规则的id
    bucket_lifecycle_conf.id = "test1"; 
    // 指定前缀"test"
    bucket_lifecycle_conf.prefix = "test"; 
    // 指定满足前缀的对象创建10天后过期 
    bucket_lifecycle_conf.days = "10"; 
    // 指定满足前缀的对象的历史版本20天后过期 
    bucket_lifecycle_conf.noncurrent_version_days = "20";
    // 该生命周期规则生效
    bucket_lifecycle_conf.status = "Enabled"; 
    set_bucket_lifecycle_configuration(&option, &bucket_lifecycle_conf, 1, 
                &response_handler, &ret_status);
    if (OBS_STATUS_OK == ret_status) {
         printf("set bucket lifecycle configuration success.\n");
    }
    else
    {
        printf("set bucket lifecycle configuration failed(%s).\n",
                obs_get_status_name(ret_status));
    }
}