Package org.apache.iotdb.commons.udf.service

Class UDFManagementService

java.lang.Object

org.apache.iotdb.commons.udf.service.UDFManagementService

public class UDFManagementService
extends java.lang.Object

Method Summary

Modifier and Type	Method	Description
void	acquireLock()
void	deregister(java.lang.String functionName, boolean needToDeleteJar)
void	deregisterAll()
void	doRegister(UDFInformation udfInformation)	Only call this method directly for registering new data node, otherwise you need to call register().
java.util.List<UDFInformation>	getAllBuiltInTimeSeriesGeneratingInformation()
UDFInformation[]	getAllUDFInformation()
static UDFManagementService	getInstance()
boolean	isLocalJarConflicted(UDFInformation udfInformation)	check whether local jar is correct according to md5
boolean	isUDAF(java.lang.String functionName)	always returns false for now
boolean	isUDTF(java.lang.String functionName)
org.apache.iotdb.udf.api.UDF	reflect(java.lang.String functionName)
void	register(UDFInformation udfInformation)	temp code for stand-alone
void	register(UDFInformation udfInformation, java.nio.ByteBuffer jarFile)
void	releaseLock()
void	validate(UDFInformation udfInformation)	invoked by config leader for validation before registration

Methods inherited from class java.lang.Object

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

Method Detail

acquireLock

public void acquireLock()

releaseLock

public void releaseLock()

validate

public void validate(UDFInformation udfInformation)

invoked by config leader for validation before registration

register

public void register(UDFInformation udfInformation,
                     java.nio.ByteBuffer jarFile)
              throws java.lang.Exception

Throws:

java.lang.Exception

register

public void register(UDFInformation udfInformation)
              throws java.lang.Exception

temp code for stand-alone

Throws:

java.lang.Exception

isLocalJarConflicted

public boolean isLocalJarConflicted(UDFInformation udfInformation)
                             throws org.apache.iotdb.udf.api.exception.UDFManagementException

check whether local jar is correct according to md5

Throws:

org.apache.iotdb.udf.api.exception.UDFManagementException

doRegister

public void doRegister(UDFInformation udfInformation)
                throws org.apache.iotdb.udf.api.exception.UDFManagementException

Only call this method directly for registering new data node, otherwise you need to call register().

Throws:

org.apache.iotdb.udf.api.exception.UDFManagementException

deregister

public void deregister(java.lang.String functionName,
                       boolean needToDeleteJar)
                throws java.lang.Exception

Throws:

java.lang.Exception

reflect

public org.apache.iotdb.udf.api.UDF reflect(java.lang.String functionName)

getAllUDFInformation

public UDFInformation[] getAllUDFInformation()

getAllBuiltInTimeSeriesGeneratingInformation

public java.util.List<UDFInformation> getAllBuiltInTimeSeriesGeneratingInformation()

isUDTF

public boolean isUDTF(java.lang.String functionName)
               throws java.lang.NoSuchMethodException,
                      java.lang.reflect.InvocationTargetException,
                      java.lang.InstantiationException,
                      java.lang.IllegalAccessException

Throws:

java.lang.NoSuchMethodException

java.lang.reflect.InvocationTargetException

java.lang.InstantiationException

java.lang.IllegalAccessException

isUDAF

public boolean isUDAF(java.lang.String functionName)

always returns false for now

deregisterAll

public void deregisterAll()
                   throws org.apache.iotdb.udf.api.exception.UDFManagementException

Throws:

org.apache.iotdb.udf.api.exception.UDFManagementException

getInstance

public static UDFManagementService getInstance()