Package org.apache.iotdb.confignode.procedure.impl.testonly

Class CreateManyDatabasesProcedure

java.lang.Object

org.apache.iotdb.confignode.procedure.Procedure<Env>

org.apache.iotdb.confignode.procedure.impl.StateMachineProcedure<ConfigNodeProcedureEnv,Integer>

org.apache.iotdb.confignode.procedure.impl.testonly.CreateManyDatabasesProcedure

All Implemented Interfaces:

Comparable<Procedure<ConfigNodeProcedureEnv>>

public class CreateManyDatabasesProcedure
extends StateMachineProcedure<ConfigNodeProcedureEnv,Integer>

This procedure will create numerous databases (perhaps 100), during which the confignode leader should be externally shutdown to test whether the procedure can be correctly recovered after the leader change. The procedure will never finish until it's recovered from another ConfigNode.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.iotdb.confignode.procedure.impl.StateMachineProcedure

StateMachineProcedure.Flow

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DATABASE_NAME_PREFIX
static final int	INITIAL_STATE
static final int	MAX_STATE
static final long	SLEEP_FOREVER

Fields inherited from class org.apache.iotdb.confignode.procedure.impl.StateMachineProcedure

isGeneratedByPipe

Fields inherited from class org.apache.iotdb.confignode.procedure.Procedure

NO_PROC_ID, NO_TIMEOUT

Constructor Summary

Constructors

Constructor	Description
CreateManyDatabasesProcedure()

Method Summary

Modifier and Type	Method	Description
void	deserialize(ByteBuffer byteBuffer)
protected StateMachineProcedure.Flow	executeFromState(ConfigNodeProcedureEnv configNodeProcedureEnv, Integer state)	Called to perform a single step of the specified 'state' of the procedure.
protected Integer	getInitialState()	Return the initial state object that will be used for the first call to executeFromState().
protected Integer	getState(int stateId)	Convert an ordinal (or state id) to an Enum (or more descriptive) state object.
protected int	getStateId(Integer integer)	Convert the Enum (or more descriptive) state object to an ordinal (or state id).
protected void	rollbackState(ConfigNodeProcedureEnv configNodeProcedureEnv, Integer integer)	Called to perform the rollback of the specified state.
void	serialize(DataOutputStream stream)

Methods inherited from class org.apache.iotdb.confignode.procedure.impl.StateMachineProcedure

addChildProcedure, execute, getCurrentState, getCycles, isEofState, isRollbackSupported, isStateDeserialized, rollback, setNextState, toStringState

Methods inherited from class org.apache.iotdb.confignode.procedure.Procedure

acquireLock, addStackIndex, compareTo, deserializeTypeInfoForCompatibility, doAcquireLock, doExecute, doReleaseLock, doRollback, elapsedTime, getChildrenLatch, getException, getLastUpdate, getParentProcId, getProcId, getProcType, getResult, getRootProcId, getStackIndexes, getState, getSubmittedTime, getTimeout, getTimeoutTimestamp, hasChildren, hasException, hasLock, hasParent, hasTimeout, haveSameParent, holdLock, incChildrenLatch, isFailed, isFinished, isInitializing, isLockedWhenLoading, isRunnable, isSuccess, isWaiting, isYieldAfterExecution, releaseLock, removeStackIndex, restoreLock, setChildrenLatch, setFailure, setFailure, setLastUpdate, setParentProcId, setProcId, setProcRunnable, setResult, setRootProcedureId, setRootProcId, setStackIndexes, setState, setSubmittedTime, setTimeout, setTimeoutFailure, toString, toStringClassDetails, toStringDetails, toStringSimpleSB, updateMetricsOnFinish, updateMetricsOnSubmit, updateTimestamp, wasExecuted

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

INITIAL_STATE

public static final int INITIAL_STATE

See Also:

• Constant Field Values

MAX_STATE

public static final int MAX_STATE

See Also:

• Constant Field Values

DATABASE_NAME_PREFIX

public static final String DATABASE_NAME_PREFIX

See Also:

• Constant Field Values

SLEEP_FOREVER

public static final long SLEEP_FOREVER

See Also:

• Constant Field Values

Constructor Details

CreateManyDatabasesProcedure

public CreateManyDatabasesProcedure()

Method Details

executeFromState

protected StateMachineProcedure.Flow executeFromState(ConfigNodeProcedureEnv configNodeProcedureEnv,
 Integer state)
                                               throws InterruptedException

Description copied from class: StateMachineProcedure

Called to perform a single step of the specified 'state' of the procedure.

Specified by:

executeFromState in class StateMachineProcedure<ConfigNodeProcedureEnv,Integer>

state - state to execute

Returns:

Flow.NO_MORE_STATE if the procedure is completed, Flow.HAS_MORE_STATE if there is another step.

Throws:

InterruptedException

rollbackState

protected void rollbackState(ConfigNodeProcedureEnv configNodeProcedureEnv,
 Integer integer)
                      throws IOException,
InterruptedException,
ProcedureException

Description copied from class: StateMachineProcedure

Called to perform the rollback of the specified state.

Specified by:

rollbackState in class StateMachineProcedure<ConfigNodeProcedureEnv,Integer>

integer - state to rollback

Throws:

IOException - temporary failure, the rollback will retry later

InterruptedException

ProcedureException

getState

protected Integer getState(int stateId)

Description copied from class: StateMachineProcedure

Convert an ordinal (or state id) to an Enum (or more descriptive) state object.

Specified by:

getState in class StateMachineProcedure<ConfigNodeProcedureEnv,Integer>

Parameters:

stateId - the ordinal() of the state enum (or state id)

Returns:

the state enum object

getStateId

protected int getStateId(Integer integer)

Description copied from class: StateMachineProcedure

Convert the Enum (or more descriptive) state object to an ordinal (or state id).

Specified by:

getStateId in class StateMachineProcedure<ConfigNodeProcedureEnv,Integer>

Parameters:

integer - the state enum object

Returns:

stateId the ordinal() of the state enum (or state id)

getInitialState

protected Integer getInitialState()

Description copied from class: StateMachineProcedure

Return the initial state object that will be used for the first call to executeFromState().

Specified by:

getInitialState in class StateMachineProcedure<ConfigNodeProcedureEnv,Integer>

Returns:

the initial state enum object

serialize

public void serialize(DataOutputStream stream)
               throws IOException

Overrides:

serialize in class StateMachineProcedure<ConfigNodeProcedureEnv,Integer>

Throws:

IOException

deserialize

public void deserialize(ByteBuffer byteBuffer)

Overrides:

deserialize in class StateMachineProcedure<ConfigNodeProcedureEnv,Integer>