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Hypertable::OperationDropNamespace Class Reference

#include <OperationDropNamespace.h>

Inheritance diagram for Hypertable::OperationDropNamespace:
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Collaboration diagram for Hypertable::OperationDropNamespace:
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Public Member Functions

 OperationDropNamespace (ContextPtr &context, const std::string &name, int32_t flags)
 
 OperationDropNamespace (ContextPtr &context, const MetaLog::EntityHeader &header_)
 
 OperationDropNamespace (ContextPtr &context, EventPtr &event)
 
virtual ~OperationDropNamespace ()
 
void execute () override
 Executes (carries out) the operation. More...
 
const std::string name () override
 Name of operation used for exclusivity. More...
 
const std::string label () override
 Human readable label for operation. More...
 
void display_state (std::ostream &os) override
 Write human readable operation state to output stream. More...
 
uint8_t encoding_version_state () const override
 Returns version of encoding format of state. More...
 
size_t encoded_length_state () const override
 Encoded length of operation state. More...
 
void encode_state (uint8_t **bufp) const override
 Encode operation state. More...
 
void decode_state (uint8_t version, const uint8_t **bufp, size_t *remainp) override
 Decode operation state. More...
 
void decode_state_old (uint8_t version, const uint8_t **bufp, size_t *remainp) override
 
- Public Member Functions inherited from Hypertable::Operation
 Operation (ContextPtr &context, int32_t type)
 Constructor with operation type specifier. More...
 
 Operation (ContextPtr &context, EventPtr &event, int32_t type)
 Constructor with request Event and operation type specifier. More...
 
 Operation (ContextPtr &context, const MetaLog::EntityHeader &header_)
 Constructor with MetaLog::EntityHeader. More...
 
virtual ~Operation ()
 Destructor. More...
 
virtual const String graphviz_label ()
 Human readable operation label used in graphviz output. More...
 
virtual bool exclusive ()
 Indicates if operation is exclusive. More...
 
virtual size_t encoded_result_length () const
 Length of encoded operation result. More...
 
virtual void encode_result (uint8_t **bufp) const
 Encode operation result. More...
 
virtual void decode_result (const uint8_t **bufp, size_t *remainp)
 Decode operation result. More...
 
void decode (const uint8_t **bufp, size_t *remainp, uint16_t definition_version) override
 Decode operation. More...
 
void display (std::ostream &os) override
 Write human readable string represenation of operation to output stream. More...
 
int64_t id ()
 Operation identifier. More...
 
ClockT::time_point expiration_time ()
 Returns operation expiration time. More...
 
void set_remove_approval_mask (uint16_t mask)
 Sets the remove approvals bit mask. More...
 
uint16_t get_remove_approval_mask ()
 Gets the remove approvals bit mask. More...
 
bool remove_approval_add (uint16_t approval)
 Sets remove approval bits. More...
 
bool removal_approved ()
 Checks if all remove approvals have been received. More...
 
void record_state (std::vector< MetaLog::EntityPtr > &additional)
 Records operation state and additional entities to the MML. More...
 
void record_state ()
 Records operation state to the MML. More...
 
void complete_error (int error, const String &msg, std::vector< MetaLog::EntityPtr > &additional)
 Completes operation with error. More...
 
void complete_error (int error, const String &msg, MetaLog::EntityPtr additional=MetaLog::EntityPtr())
 Completes operation with error. More...
 
void complete_error (Exception &e, std::vector< MetaLog::EntityPtr > &additional)
 Completes operation with exception. More...
 
void complete_error (Exception &e, MetaLog::EntityPtr additional=MetaLog::EntityPtr())
 Completes operation with exception. More...
 
void complete_ok (std::vector< MetaLog::EntityPtr > &additional)
 
void complete_ok (MetaLog::EntityPtr additional=MetaLog::EntityPtr())
 
virtual int64_t hash_code () const
 
virtual void exclusivities (DependencySet &exclusivities)
 
virtual void dependencies (DependencySet &dependencies)
 
virtual void obstructions (DependencySet &obstructions)
 
void add_exclusivity (const String &exclusivity)
 
void add_dependency (const String &dependency)
 
void add_obstruction (const String &obstruction)
 
void add_obstruction_permanent (const String &obstruction)
 
void fetch_sub_operations (std::vector< std::shared_ptr< Operation > > &sub_ops)
 
void pre_run ()
 
void post_run ()
 
int32_t get_state ()
 
void set_state (int32_t state)
 
virtual bool is_perpetual ()
 
bool block ()
 
bool unblock ()
 
bool is_blocked ()
 
bool is_complete ()
 
int32_t get_original_type ()
 
void set_original_type (int32_t original_type)
 
void set_ephemeral ()
 Sets the ephemeral flag to true. More...
 
bool ephemeral ()
 Gets the ephemeral flag. More...
 
int32_t get_error ()
 Get error code. More...
 
String get_error_msg ()
 Get error message. More...
 
- Public Member Functions inherited from Hypertable::MetaLog::Entity
 Entity (int32_t type)
 Constructor from entity type. More...
 
 Entity (const EntityHeader &header_)
 Constructor from entity header. More...
 
virtual ~Entity ()
 Destructor. More...
 
void lock ()
 Locks the entity's mutex. More...
 
void unlock ()
 Unlocks the entity's mutex. More...
 
void mark_for_removal ()
 Marks entity for removal. More...
 
bool marked_for_removal ()
 Checks if entity is marked for removal. More...
 
int64_t id () const
 Returns the entity ID. More...
 
- Public Member Functions inherited from Hypertable::Serializable
virtual size_t encoded_length () const
 Returns serialized object length. More...
 
virtual void encode (uint8_t **bufp) const
 Writes serialized representation of object to a buffer. More...
 
virtual void decode (const uint8_t **bufp, size_t *remainp)
 Reads serialized representation of object from a buffer. More...
 

Private Member Functions

void initialize_dependencies ()
 

Private Attributes

Lib::Master::Request::Parameters::DropNamespace m_params
 Request parmaeters. More...
 
std::string m_id
 Namespace ID path. More...
 

Additional Inherited Members

- Protected Member Functions inherited from Hypertable::Operation
uint8_t encoding_version () const override
 Returns encoding version. More...
 
size_t encoded_length_internal () const override
 Returns internal serialized length. More...
 
void encode_internal (uint8_t **bufp) const override
 Writes serialized representation of object to a buffer. More...
 
void decode_internal (uint8_t version, const uint8_t **bufp, size_t *remainp) override
 Reads serialized representation of object from a buffer. More...
 
void decode_old (const uint8_t **bufp, size_t *remainp, uint16_t definition_version)
 
bool validate_subops ()
 Handles the results of sub operations. More...
 
void stage_subop (std::shared_ptr< Operation > operation)
 Stages a sub operation for execution. More...
 
- Protected Member Functions inherited from Hypertable::MetaLog::Entity
void encode_entry (uint8_t **bufp)
 Encodes entity header plus serialized state. More...
 
- Protected Attributes inherited from Hypertable::Operation
ContextPtr m_context
 Pointer to Master context. More...
 
EventPtr m_event
 Pointer to client event (if any) that originated the operation. More...
 
uint16_t m_remove_approvals {}
 Remove approvals received. More...
 
uint16_t m_remove_approval_mask {}
 Remove approval mask. More...
 
int32_t m_original_type {}
 Original entity type read from MML (prior to conversion) More...
 
int32_t m_error {}
 Result error code. More...
 
String m_error_msg
 Result error message. More...
 
bool m_unblock_on_exit {}
 Flag to signal operation to be unblocked on exit (post_run()) More...
 
bool m_blocked {}
 Flag indicating if operation is blocked. More...
 
bool m_ephemeral {}
 Indicates if operation is ephemeral and does not get persisted to MML. More...
 
ClockT::time_point m_expiration_time
 Expiration time (used by ResponseManager) More...
 
int64_t m_hash_code
 Hash code uniqely identifying operation. More...
 
DependencySet m_exclusivities
 Set of exclusivities. More...
 
DependencySet m_dependencies
 Set of dependencies. More...
 
DependencySet m_obstructions
 Set of obstructions. More...
 
DependencySet m_obstructions_permanent
 Set of permanent obstructions. More...
 
std::vector< int64_t > m_sub_ops
 Vector of sub operations IDs. More...
 
- Protected Attributes inherited from Hypertable::MetaLog::Entity
std::mutex m_mutex
 Mutex for serializing access to members More...
 
EntityHeader header
 Entity header More...
 

Detailed Description

Definition at line 31 of file OperationDropNamespace.h.

Constructor & Destructor Documentation

OperationDropNamespace::OperationDropNamespace ( ContextPtr context,
const std::string &  name,
int32_t  flags 
)

Definition at line 38 of file OperationDropNamespace.cc.

OperationDropNamespace::OperationDropNamespace ( ContextPtr context,
const MetaLog::EntityHeader header_ 
)

Definition at line 46 of file OperationDropNamespace.cc.

OperationDropNamespace::OperationDropNamespace ( ContextPtr context,
EventPtr event 
)

Definition at line 51 of file OperationDropNamespace.cc.

virtual Hypertable::OperationDropNamespace::~OperationDropNamespace ( )
inlinevirtual

Definition at line 36 of file OperationDropNamespace.h.

Member Function Documentation

void OperationDropNamespace::decode_state ( uint8_t  version,
const uint8_t **  bufp,
size_t *  remainp 
)
overridevirtual

Decode operation state.

This method is called by decode() to decode state that is specific to the operation. The encoded state should start at the memory location pointed to by *bufp, and if successfully decoded, will be modified to point to the first byte past the encoded state. The remainp parameter is a pointer to an integer holding the number of valid/readable bytes pointed to by *bufp and if decoding is sucessful, will be decremented by the length of the encoded state.

Parameters
versionEncoding version
bufpAddress of pointer to destination buffer
remainpAddress of integer holding amount of remaining buffer

Implements Hypertable::Operation.

Definition at line 149 of file OperationDropNamespace.cc.

void OperationDropNamespace::decode_state_old ( uint8_t  version,
const uint8_t **  bufp,
size_t *  remainp 
)
overridevirtual

Implements Hypertable::Operation.

Definition at line 154 of file OperationDropNamespace.cc.

void OperationDropNamespace::display_state ( std::ostream &  os)
overridevirtual

Write human readable operation state to output stream.

This method is called by display() to write a human readable string representation of the operation state to os

Parameters
osOutput stream to which state string is to be written

Implements Hypertable::Operation.

Definition at line 130 of file OperationDropNamespace.cc.

void OperationDropNamespace::encode_state ( uint8_t **  bufp) const
overridevirtual

Encode operation state.

This method is called by encode() to encode state that is specific to the operation. The encoded state is written to the memory location pointed to by *bufp, which is modified to point to the first byte after the encoded state.

Parameters
bufpAddress of pointer to destination buffer (modified by call)

Implements Hypertable::Operation.

Definition at line 144 of file OperationDropNamespace.cc.

size_t OperationDropNamespace::encoded_length_state ( ) const
overridevirtual

Encoded length of operation state.

Returns
Length of encoded operation state.

Implements Hypertable::Operation.

Definition at line 140 of file OperationDropNamespace.cc.

uint8_t OperationDropNamespace::encoding_version_state ( ) const
overridevirtual

Returns version of encoding format of state.

This is method returns the version of the encoding format of the state.

Returns
Version of encoding format of state.

Implements Hypertable::Operation.

Definition at line 136 of file OperationDropNamespace.cc.

void OperationDropNamespace::execute ( )
overridevirtual

Executes (carries out) the operation.

This method is called by the OperationProcessor to carry out the operation. After calling this method, the OperationProcessor will check the state of the operation with a call to get_state(). If the state is OperationState::COMPLETE, then it assumes that the operation is complete and will destory it. Otherwise, it will remain in the operation dependency graph and will get re-executed at a later time. After the call to this method, the OperationProcessor will re-compute the operation dependency graph (which may have changed due to the removal of this operation or if there were modifications to m_exclusivities, m_dependencies, or m_obstructions) and will continue operation execution in the approprate order.

Implements Hypertable::Operation.

Definition at line 66 of file OperationDropNamespace.cc.

void OperationDropNamespace::initialize_dependencies ( )
private

Definition at line 60 of file OperationDropNamespace.cc.

const String OperationDropNamespace::label ( )
overridevirtual

Human readable label for operation.

This method is used to generate a human readable string describing the operation and is typically used for generating log messages.

Returns
Human readable string describing operation

Implements Hypertable::Operation.

Definition at line 165 of file OperationDropNamespace.cc.

const String OperationDropNamespace::name ( )
overridevirtual

Name of operation used for exclusivity.

An operation can be marked exclusive (see exclusvive()) which tells the Operation processor that only one operation of this name may be added to the dependency graph. If an attempt to add an an exclusive operation is made and the OperationProcessor already contains an exclusive operation with the same name, the attempt will fail and will result in an Exception with error code Error::MASTER_OPERATION_IN_PROGRESS.

Returns
Name of operation used to enforce exclusivity constraint

Implements Hypertable::Operation.

Definition at line 161 of file OperationDropNamespace.cc.

Member Data Documentation

std::string Hypertable::OperationDropNamespace::m_id
private

Namespace ID path.

Definition at line 55 of file OperationDropNamespace.h.

Lib::Master::Request::Parameters::DropNamespace Hypertable::OperationDropNamespace::m_params
private

Request parmaeters.

Definition at line 52 of file OperationDropNamespace.h.


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