Detailed Description

Definition at line 117 of file metadata.hpp.

#include <metadata.hpp>

Inheritance diagram for foedus::storage::MetadataSerializer:

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Collaboration diagram for foedus::storage::MetadataSerializer:

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Public Member Functions
	MetadataSerializer ()

	MetadataSerializer (Metadata *data)

virtual	~MetadataSerializer ()

ErrorStack	load_base (tinyxml2::XMLElement *element)
	common routine for the implementation of load() More...

ErrorStack	save_base (tinyxml2::XMLElement *element) const
	common routine for the implementation of save() More...

Public Member Functions inherited from foedus::externalize::Externalizable
virtual ErrorStack	load (tinyxml2::XMLElement *element)=0
	Reads the content of this object from the given XML element. More...

virtual ErrorStack	save (tinyxml2::XMLElement *element) const =0
	Writes the content of this object to the given XML element. More...

virtual const char *	get_tag_name () const =0
	Returns an XML tag name for this object as a root element. More...

virtual void	assign (const foedus::externalize::Externalizable *other)=0
	Polymorphic assign operator. More...

ErrorStack	load_from_string (const std::string &xml)
	Load the content of this object from the given XML string. More...

void	save_to_stream (std::ostream *ptr) const
	Invokes save() and directs the resulting XML text to the given stream. More...

ErrorStack	load_from_file (const fs::Path &path)
	Load the content of this object from the specified XML file. More...

ErrorStack	save_to_file (const fs::Path &path) const
	Atomically and durably writes out this object to the specified XML file. More...

Static Public Member Functions
static ErrorStack	load_all_storages_from_xml (storage::StorageId largest_storage_id, tinyxml2::XMLElement element, StorageControlBlock blocks)

static ErrorStack	save_all_storages_to_xml (storage::StorageId largest_storage_id, tinyxml2::XMLElement element, StorageControlBlock blocks)

Static Public Member Functions inherited from foedus::externalize::Externalizable
static ErrorStack	insert_comment (tinyxml2::XMLElement *element, const std::string &comment)

static ErrorStack	append_comment (tinyxml2::XMLElement *parent, const std::string &comment)

static ErrorStack	create_element (tinyxml2::XMLElement parent, const std::string &name, tinyxml2::XMLElement *out)

template<typename T >
static ErrorStack	add_element (tinyxml2::XMLElement *parent, const std::string &tag, const std::string &comment, T value)
	Only declaration in header. More...

template<uint MAXLEN, typename CHAR >
static ErrorStack	add_element (tinyxml2::XMLElement *parent, const std::string &tag, const std::string &comment, const assorted::FixedString< MAXLEN, CHAR > &value)

template<typename T >
static ErrorStack	add_element (tinyxml2::XMLElement *parent, const std::string &tag, const std::string &comment, const std::vector< T > &value)
	vector version More...

template<typename ENUM >
static ErrorStack	add_enum_element (tinyxml2::XMLElement *parent, const std::string &tag, const std::string &comment, ENUM value)
	enum version More...

static ErrorStack	add_child_element (tinyxml2::XMLElement *parent, const std::string &tag, const std::string &comment, const Externalizable &child)
	child Externalizable version More...

template<typename T >
static ErrorStack	get_element (tinyxml2::XMLElement parent, const std::string &tag, T out, bool optional=false, T value=0)
	Only declaration in header. More...

static ErrorStack	get_element (tinyxml2::XMLElement parent, const std::string &tag, std::string out, bool optional=false, const char *value="")
	string type is bit special. More...

template<uint MAXLEN, typename CHAR >
static ErrorStack	get_element (tinyxml2::XMLElement parent, const std::string &tag, assorted::FixedString< MAXLEN, CHAR > out, bool optional=false, const assorted::FixedString< MAXLEN, CHAR > &value=assorted::FixedString< MAXLEN, CHAR >())

template<typename ENUM >
static ErrorStack	get_enum_element (tinyxml2::XMLElement parent, const std::string &tag, ENUM out, bool optional=false, ENUM default_value=static_cast< ENUM >(0))
	enum version More...

template<typename T >
static ErrorStack	get_element (tinyxml2::XMLElement parent, const std::string &tag, std::vector< T > out, bool optional=false)
	vector version. More...

static ErrorStack	get_child_element (tinyxml2::XMLElement parent, const std::string &tag, Externalizable child, bool optional=false)
	child Externalizable version More...

Public Attributes
Metadata *	data_

Constructor & Destructor Documentation

foedus::storage::MetadataSerializer::MetadataSerializer ( )

inline

Definition at line 118 of file metadata.hpp.

118 : data_(CXX11_NULLPTR) {}

CXX11_NULLPTR

#define CXX11_NULLPTR

Used in public headers in place of "nullptr" of C++11.

Definition: cxx11.hpp:132

foedus::storage::MetadataSerializer::data_

Metadata * data_

Definition: metadata.hpp:136

foedus::storage::MetadataSerializer::MetadataSerializer ( Metadata * data )

inlineexplicit

Definition at line 119 of file metadata.hpp.

119 : data_(data) {}

foedus::storage::MetadataSerializer::data_

Metadata * data_

Definition: metadata.hpp:136

virtual foedus::storage::MetadataSerializer::~MetadataSerializer ( )

inlinevirtual

Definition at line 120 of file metadata.hpp.

120 {}

Member Function Documentation

ErrorStack foedus::storage::MetadataSerializer::load_all_storages_from_xml	(	storage::StorageId	largest_storage_id,
		tinyxml2::XMLElement *	element,
		StorageControlBlock *	blocks
	)

static

Definition at line 125 of file metadata.cpp.

References ASSERT_ND, CHECK_ERROR, ERROR_STACK, foedus::externalize::Externalizable::get_element(), foedus::externalize::Externalizable::get_enum_element(), foedus::storage::kArrayStorage, foedus::kErrorCodeStrUnsupportedMetadata, foedus::storage::kExists, foedus::storage::kHashStorage, foedus::storage::kInvalidStorage, foedus::storage::kMasstreeStorage, foedus::storage::kNotExists, foedus::kRetOk, foedus::storage::kSequentialStorage, foedus::storage::load_from_xml_array(), foedus::storage::load_from_xml_hash(), foedus::storage::load_from_xml_masstree(), foedus::storage::load_from_xml_sequential(), foedus::storage::StorageControlBlock::meta_, and foedus::storage::StorageControlBlock::status_.

Referenced by foedus::snapshot::SnapshotMetadata::load().

                                {
   uint32_t loaded_count = 0;
   for (tinyxml2::XMLElement* element = parent->FirstChildElement(kChildTagName);
     element;
     element = element->NextSiblingElement(kChildTagName)) {
     StorageId id;
     CHECK_ERROR(get_element(element, "id_", &id))
     ASSERT_ND(id > 0);
     ASSERT_ND(id <= largest_storage_id);
     StorageType type = kInvalidStorage;
     CHECK_ERROR(get_enum_element(element, "type_", &type));
 
     VLOG(0) << "Loading metadata of storage-" << id << " from xml";
     ASSERT_ND(blocks[id].status_ == kNotExists);
     Metadata* data = &blocks[id].meta_;
     blocks[id].status_ = kExists;
     switch (type) {
     case kArrayStorage:
       CHECK_ERROR(load_from_xml_array(element, data));
       break;
     case kHashStorage:
       CHECK_ERROR(load_from_xml_hash(element, data));
       break;
     case kMasstreeStorage:
       CHECK_ERROR(load_from_xml_masstree(element, data));
       break;
     case kSequentialStorage:
       CHECK_ERROR(load_from_xml_sequential(element, data));
       break;
     default:
       return ERROR_STACK(kErrorCodeStrUnsupportedMetadata);
     }
     ++loaded_count;
   }
   LOG(INFO) << "Loaded metadata of " << loaded_count << " storages";
   return kRetOk;
 }

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ErrorStack foedus::storage::MetadataSerializer::load_base ( tinyxml2::XMLElement * element )

common routine for the implementation of load()

Definition at line 50 of file metadata.cpp.

References CHECK_ERROR, data_, foedus::externalize::Externalizable::get_element(), foedus::externalize::Externalizable::get_enum_element(), foedus::storage::Metadata::id_, foedus::kRetOk, foedus::storage::Metadata::name_, foedus::storage::Metadata::root_snapshot_page_id_, foedus::storage::Metadata::SnapshotThresholds::snapshot_keep_threshold_, foedus::storage::Metadata::snapshot_thresholds_, foedus::storage::Metadata::SnapshotThresholds::snapshot_trigger_threshold_, and foedus::storage::Metadata::type_.

Referenced by foedus::storage::sequential::SequentialMetadataSerializer::load(), foedus::storage::hash::HashMetadataSerializer::load(), foedus::storage::array::ArrayMetadataSerializer::load(), and foedus::storage::masstree::MasstreeMetadataSerializer::load().

                                                                     {
   CHECK_ERROR(get_element(element, "id_", &data_->id_))
   CHECK_ERROR(get_enum_element(element, "type_", &data_->type_))
   CHECK_ERROR(get_element(element, "name_", &data_->name_))
   CHECK_ERROR(get_element(element, "root_snapshot_page_id_", &data_->root_snapshot_page_id_))
   CHECK_ERROR(get_element(
     element,
     "snapshot_trigger_threshold_",
     &data_->snapshot_thresholds_.snapshot_trigger_threshold_));
   CHECK_ERROR(get_element(
     element,
     "snapshot_keep_threshold_",
     &data_->snapshot_thresholds_.snapshot_keep_threshold_));
   return kRetOk;
 }

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ErrorStack foedus::storage::MetadataSerializer::save_all_storages_to_xml	(	storage::StorageId	largest_storage_id,
		tinyxml2::XMLElement *	element,
		StorageControlBlock *	blocks
	)

static

Definition at line 166 of file metadata.cpp.

References ASSERT_ND, CHECK_ERROR, ERROR_STACK, foedus::fs::exists(), foedus::storage::kArrayStorage, foedus::kErrorCodeStrUnsupportedMetadata, foedus::storage::kHashStorage, foedus::storage::kMasstreeStorage, foedus::kRetOk, foedus::storage::kSequentialStorage, foedus::storage::StorageControlBlock::meta_, foedus::storage::save_to_xml_array(), foedus::storage::save_to_xml_hash(), foedus::storage::save_to_xml_masstree(), foedus::storage::save_to_xml_sequential(), and foedus::storage::Metadata::type_.

Referenced by foedus::snapshot::SnapshotMetadata::save().

                                {
   uint32_t saved_count = 0;
   for (storage::StorageId id = 1; id <= largest_storage_id; ++id) {
     ASSERT_ND(blocks[id].is_valid_status());
     if (!blocks[id].exists()) {
       continue;
     }
     StorageType type = blocks[id].meta_.type_;
     Metadata* data = &blocks[id].meta_;
     switch (type) {
     case kArrayStorage:
       CHECK_ERROR(save_to_xml_array(parent, data));
       break;
     case kHashStorage:
       CHECK_ERROR(save_to_xml_hash(parent, data));
       break;
     case kMasstreeStorage:
       CHECK_ERROR(save_to_xml_masstree(parent, data));
       break;
     case kSequentialStorage:
       CHECK_ERROR(save_to_xml_sequential(parent, data));
       break;
     default:
       return ERROR_STACK(kErrorCodeStrUnsupportedMetadata);
     }
     ++saved_count;
   }
   LOG(INFO) << "Written metadata of " << saved_count << " storages";
   return kRetOk;
 }

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ErrorStack foedus::storage::MetadataSerializer::save_base ( tinyxml2::XMLElement * element ) const

common routine for the implementation of save()

Definition at line 66 of file metadata.cpp.

References foedus::externalize::Externalizable::add_element(), foedus::externalize::Externalizable::add_enum_element(), CHECK_ERROR, data_, foedus::storage::Metadata::id_, foedus::kRetOk, foedus::storage::Metadata::name_, foedus::storage::Metadata::root_snapshot_page_id_, foedus::storage::Metadata::SnapshotThresholds::snapshot_keep_threshold_, foedus::storage::Metadata::snapshot_thresholds_, foedus::storage::Metadata::SnapshotThresholds::snapshot_trigger_threshold_, and foedus::storage::Metadata::type_.

Referenced by foedus::storage::sequential::SequentialMetadataSerializer::save(), foedus::storage::hash::HashMetadataSerializer::save(), foedus::storage::array::ArrayMetadataSerializer::save(), and foedus::storage::masstree::MasstreeMetadataSerializer::save().

                                                                           {
   CHECK_ERROR(add_element(element, "id_", "", data_->id_));
   CHECK_ERROR(add_enum_element(element, "type_", "", data_->type_));
   CHECK_ERROR(add_element(element, "name_", "", data_->name_));
   CHECK_ERROR(add_element(element, "root_snapshot_page_id_", "", data_->root_snapshot_page_id_));
   CHECK_ERROR(add_element(
     element,
     "snapshot_trigger_threshold_",
     "",
     data_->snapshot_thresholds_.snapshot_trigger_threshold_));
   CHECK_ERROR(add_element(
     element,
     "snapshot_keep_threshold_",
     "",
     data_->snapshot_thresholds_.snapshot_keep_threshold_));
   return kRetOk;
 }

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Member Data Documentation

Metadata* foedus::storage::MetadataSerializer::data_

Definition at line 136 of file metadata.hpp.

Referenced by load_base(), and save_base().

The documentation for this struct was generated from the following files:

/home/shino/foedus_code/foedus-core/include/foedus/storage/metadata.hpp
/home/shino/foedus_code/foedus-core/src/foedus/storage/metadata.cpp

Detailed Description

Public Member Functions

Static Public Member Functions

Public Attributes

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation