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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#ifndef CEPH_RGW_SYNC_MODULE_H
#define CEPH_RGW_SYNC_MODULE_H
#include "rgw_common.h"
#include "rgw_coroutine.h"
class RGWBucketInfo;
class RGWRemoteDataLog;
struct RGWDataSyncEnv;
struct rgw_bucket_entry_owner;
struct rgw_obj_key;
class RGWDataSyncModule {
public:
RGWDataSyncModule() {}
virtual ~RGWDataSyncModule() {}
virtual void init(RGWDataSyncEnv *sync_env, uint64_t instance_id) {}
virtual RGWCoroutine *init_sync(RGWDataSyncEnv *sync_env) {
return nullptr;
}
virtual RGWCoroutine *start_sync(RGWDataSyncEnv *sync_env) {
return nullptr;
}
virtual RGWCoroutine *sync_object(RGWDataSyncEnv *sync_env, RGWBucketInfo& bucket_info, rgw_obj_key& key, std::optional<uint64_t> versioned_epoch, rgw_zone_set *zones_trace) = 0;
virtual RGWCoroutine *remove_object(RGWDataSyncEnv *sync_env, RGWBucketInfo& bucket_info, rgw_obj_key& key, real_time& mtime,
bool versioned, uint64_t versioned_epoch, rgw_zone_set *zones_trace) = 0;
virtual RGWCoroutine *create_delete_marker(RGWDataSyncEnv *sync_env, RGWBucketInfo& bucket_info, rgw_obj_key& key, real_time& mtime,
rgw_bucket_entry_owner& owner, bool versioned, uint64_t versioned_epoch, rgw_zone_set *zones_trace) = 0;
};
class RGWRESTMgr;
class RGWMetadataHandler;
class RGWSyncModuleInstance {
public:
RGWSyncModuleInstance() {}
virtual ~RGWSyncModuleInstance() {}
virtual RGWDataSyncModule *get_data_handler() = 0;
virtual RGWRESTMgr *get_rest_filter(int dialect, RGWRESTMgr *orig) {
return orig;
}
virtual bool supports_user_writes() {
return false;
}
virtual RGWMetadataHandler *alloc_bucket_meta_handler();
virtual RGWMetadataHandler *alloc_bucket_instance_meta_handler();
// indication whether the sync module start with full sync (default behavior)
// incremental sync would follow anyway
virtual bool should_full_sync() const {
return true;
}
};
typedef std::shared_ptr<RGWSyncModuleInstance> RGWSyncModuleInstanceRef;
class JSONFormattable;
class RGWSyncModule {
public:
RGWSyncModule() {}
virtual ~RGWSyncModule() {}
virtual bool supports_writes() {
return false;
}
virtual bool supports_data_export() = 0;
virtual int create_instance(CephContext *cct, const JSONFormattable& config, RGWSyncModuleInstanceRef *instance) = 0;
};
typedef std::shared_ptr<RGWSyncModule> RGWSyncModuleRef;
class RGWSyncModulesManager {
Mutex lock;
map<string, RGWSyncModuleRef> modules;
public:
RGWSyncModulesManager() : lock("RGWSyncModulesManager") {}
void register_module(const string& name, RGWSyncModuleRef& module, bool is_default = false) {
Mutex::Locker l(lock);
modules[name] = module;
if (is_default) {
modules[string()] = module;
}
}
bool get_module(const string& name, RGWSyncModuleRef *module) {
Mutex::Locker l(lock);
auto iter = modules.find(name);
if (iter == modules.end()) {
return false;
}
if (module != nullptr) {
*module = iter->second;
}
return true;
}
int supports_data_export(const string& name) {
RGWSyncModuleRef module;
if (!get_module(name, &module)) {
return -ENOENT;
}
return module.get()->supports_data_export();
}
int create_instance(CephContext *cct, const string& name, const JSONFormattable& config, RGWSyncModuleInstanceRef *instance) {
RGWSyncModuleRef module;
if (!get_module(name, &module)) {
return -ENOENT;
}
return module.get()->create_instance(cct, config, instance);
}
vector<string> get_registered_module_names() const {
vector<string> names;
for (auto& i: modules) {
if (!i.first.empty()) {
names.push_back(i.first);
}
}
return names;
}
};
class RGWStatRemoteObjCBCR : public RGWCoroutine {
protected:
RGWDataSyncEnv *sync_env;
RGWBucketInfo bucket_info;
rgw_obj_key key;
ceph::real_time mtime;
uint64_t size = 0;
string etag;
map<string, bufferlist> attrs;
map<string, string> headers;
public:
RGWStatRemoteObjCBCR(RGWDataSyncEnv *_sync_env,
RGWBucketInfo& _bucket_info, rgw_obj_key& _key);
~RGWStatRemoteObjCBCR() override {}
void set_result(ceph::real_time& _mtime,
uint64_t _size,
const string& _etag,
map<string, bufferlist>&& _attrs,
map<string, string>&& _headers) {
mtime = _mtime;
size = _size;
etag = _etag;
attrs = std::move(_attrs);
headers = std::move(_headers);
}
};
class RGWCallStatRemoteObjCR : public RGWCoroutine {
ceph::real_time mtime;
uint64_t size{0};
string etag;
map<string, bufferlist> attrs;
map<string, string> headers;
protected:
RGWDataSyncEnv *sync_env;
RGWBucketInfo bucket_info;
rgw_obj_key key;
public:
RGWCallStatRemoteObjCR(RGWDataSyncEnv *_sync_env,
RGWBucketInfo& _bucket_info, rgw_obj_key& _key);
~RGWCallStatRemoteObjCR() override {}
int operate() override;
virtual RGWStatRemoteObjCBCR *allocate_callback() {
return nullptr;
}
};
void rgw_register_sync_modules(RGWSyncModulesManager *modules_manager);
#endif
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