step.functions.handler

Class AbstractFunctionHandler<IN,OUT>

java.lang.Object

step.functions.handler.AbstractFunctionHandler<IN,OUT>

Direct Known Subclasses:

JsonBasedFunctionHandler

public abstract class AbstractFunctionHandler<IN,OUT>
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static String	FORKED_BRANCH

Constructor Summary

Constructors

Constructor and Description
AbstractFunctionHandler()

Method Summary

Modifier and Type	Method and Description
protected Output<OUT>	delegate(String functionHandlerClassname, Input<IN> input) Delegate the execution of the function to the AbstractFunctionHandler specified in the arguments in the context of the default branch
protected Output<OUT>	delegate(String branchName, String functionHandlerClassname, Input<IN> input) Delegate the execution of the function to the AbstractFunctionHandler specified in the arguments in the context of the specified branch
protected step.grid.contextbuilder.ApplicationContextBuilder.ApplicationContext	getCurrentContext()
protected step.grid.contextbuilder.ApplicationContextBuilder.ApplicationContext	getCurrentContext(String branch)
protected step.grid.filemanager.FileVersionId	getFileVersionId(String properyName, Map<String,String> properties)
protected FunctionHandlerFactory	getFunctionHandlerFactory()
abstract Class<IN>	getInputPayloadClass()
abstract Class<OUT>	getOutputPayloadClass()
protected Map<String,String>	getProperties()
protected step.grid.agent.tokenpool.TokenReservationSession	getTokenReservationSession()
protected step.grid.agent.tokenpool.TokenSession	getTokenSession()
protected abstract Output<OUT>	handle(Input<IN> input)
void	initialize()
protected Map<String,String>	mergeAllProperties(Input<?> input)
protected void	pushLocalApplicationContext(ClassLoader classLoader, String resourceName) Push a new context based on a local file (jar or zip) to the default branch.
protected void	pushLocalApplicationContext(String branch, ClassLoader classLoader, String resourceName) Push a new context based on a local file (jar or zip) to the branch specified as argument.
protected void	pushLocalFolderApplicationContext(File libFolder) Push a new context based on a local folder containing a list of jars to the master branch.
protected void	pushLocalFolderApplicationContext(String branch, File libFolder) Push a new context based on a local folder containing a list of jars to the branch specified as argument.
protected void	pushRemoteApplicationContext(String fileId, Map<String,String> properties) Push a new remote context to the default branch.
protected void	pushRemoteApplicationContext(String branch, String fileId, Map<String,String> properties) Push a new remote context to the branch specified as argument.
protected File	retrieveFileVersion(String properyName, Map<String,String> properties)
protected <T> T	runInContext(Callable<T> callable) Executes the callable using the ClassLoader associated to the current ApplicationContextBuilder.ApplicationContext as context classloader
protected <T> T	runInContext(String branch, Callable<T> callable) Executes the callable in the current context of the branch specified as argument
protected void	setApplicationContextBuilder(step.grid.contextbuilder.ApplicationContextBuilder applicationContextBuilder)
protected void	setFileManagerClient(step.grid.filemanager.FileManagerClient fileManagerClient)
protected void	setFunctionHandlerFactory(FunctionHandlerFactory functionHandlerFactory)
protected void	setProperties(Map<String,String> properties)
protected void	setTokenReservationSession(step.grid.agent.tokenpool.TokenReservationSession tokenReservationSession)
protected void	setTokenSession(step.grid.agent.tokenpool.TokenSession tokenSession)

Methods inherited from class java.lang.Object

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

Field Detail

FORKED_BRANCH

public static final String FORKED_BRANCH

See Also:

Constant Field Values

Constructor Detail

AbstractFunctionHandler

public AbstractFunctionHandler()

Method Detail

getFunctionHandlerFactory

protected FunctionHandlerFactory getFunctionHandlerFactory()

setFunctionHandlerFactory

protected void setFunctionHandlerFactory(FunctionHandlerFactory functionHandlerFactory)

setApplicationContextBuilder

protected void setApplicationContextBuilder(step.grid.contextbuilder.ApplicationContextBuilder applicationContextBuilder)

setFileManagerClient

protected void setFileManagerClient(step.grid.filemanager.FileManagerClient fileManagerClient)

setProperties

protected void setProperties(Map<String,String> properties)

getProperties

protected Map<String,String> getProperties()

getTokenSession

protected step.grid.agent.tokenpool.TokenSession getTokenSession()

setTokenSession

protected void setTokenSession(step.grid.agent.tokenpool.TokenSession tokenSession)

getTokenReservationSession

protected step.grid.agent.tokenpool.TokenReservationSession getTokenReservationSession()

setTokenReservationSession

protected void setTokenReservationSession(step.grid.agent.tokenpool.TokenReservationSession tokenReservationSession)

initialize

public void initialize()

getCurrentContext

protected step.grid.contextbuilder.ApplicationContextBuilder.ApplicationContext getCurrentContext()

Returns:

the current ApplicationContextBuilder.ApplicationContext of the default branch

getCurrentContext

protected step.grid.contextbuilder.ApplicationContextBuilder.ApplicationContext getCurrentContext(String branch)

Parameters:

branch -

Returns:

the current ApplicationContextBuilder.ApplicationContext of the branch specified in the argument

runInContext

protected <T> T runInContext(Callable<T> callable)
                      throws Exception

Executes the callable using the ClassLoader associated to the current ApplicationContextBuilder.ApplicationContext as context classloader

Parameters:

callable - the callable to be executed in the current ApplicationContextBuilder.ApplicationContext

Returns:

the result of the callable

Throws:

Exception

runInContext

protected <T> T runInContext(String branch,
                             Callable<T> callable)
                      throws Exception

Executes the callable in the current context of the branch specified as argument

Parameters:

branch - the name of the branch to be used for execution

callable - the callable to be executed in the current ApplicationContextBuilder.ApplicationContext

Returns:

the result of the callable

Throws:

Exception

pushLocalApplicationContext

protected void pushLocalApplicationContext(ClassLoader classLoader,
                                           String resourceName)
                                    throws step.grid.contextbuilder.ApplicationContextBuilderException

Push a new context based on a local file (jar or zip) to the default branch. See ApplicationContextBuilder for details

Parameters:

classLoader - the classloader to be used to search the file

resourceName - the name of the resource to be pushed

Throws:

step.grid.contextbuilder.ApplicationContextBuilderException

pushLocalApplicationContext

protected void pushLocalApplicationContext(String branch,
                                           ClassLoader classLoader,
                                           String resourceName)
                                    throws step.grid.contextbuilder.ApplicationContextBuilderException

Push a new context based on a local file (jar or zip) to the branch specified as argument. See ApplicationContextBuilder for details

Parameters:

branch - the name of the branch on which the context has to be pushed

classLoader - the classloader to be used to search the file

resourceName - the name of the resource to be pushed

Throws:

step.grid.contextbuilder.ApplicationContextBuilderException

pushLocalFolderApplicationContext

protected void pushLocalFolderApplicationContext(File libFolder)
                                          throws step.grid.contextbuilder.ApplicationContextBuilderException

Push a new context based on a local folder containing a list of jars to the master branch. See ApplicationContextBuilder for details

Parameters:

libFolder - the folder containing the jars to be pushed to the context

Throws:

step.grid.contextbuilder.ApplicationContextBuilderException

pushLocalFolderApplicationContext

protected void pushLocalFolderApplicationContext(String branch,
                                                 File libFolder)
                                          throws step.grid.contextbuilder.ApplicationContextBuilderException

Push a new context based on a local folder containing a list of jars to the branch specified as argument. See ApplicationContextBuilder for details

Parameters:

branch - the name of the branch on which the context has to be pushed

libFolder - the folder containing the jars to be pushed to the context

Throws:

step.grid.contextbuilder.ApplicationContextBuilderException

pushRemoteApplicationContext

protected void pushRemoteApplicationContext(String fileId,
                                            Map<String,String> properties)
                                     throws step.grid.contextbuilder.ApplicationContextBuilderException

Push a new remote context to the default branch. See ApplicationContextBuilder for details

Parameters:

fileId - the id of the remote file (jar or folder) to be pushed

properties -

Throws:

step.grid.contextbuilder.ApplicationContextBuilderException

pushRemoteApplicationContext

protected void pushRemoteApplicationContext(String branch,
                                            String fileId,
                                            Map<String,String> properties)
                                     throws step.grid.contextbuilder.ApplicationContextBuilderException

Push a new remote context to the branch specified as argument. See ApplicationContextBuilder for details

Parameters:

branch - the name of the branch on which the context has to be pushed

fileId - the id of the remote file (jar or folder) to be pushed

properties -

Throws:

step.grid.contextbuilder.ApplicationContextBuilderException

delegate

protected Output<OUT> delegate(String branchName,
                               String functionHandlerClassname,
                               Input<IN> input)
                        throws Exception

Delegate the execution of the function to the AbstractFunctionHandler specified in the arguments in the context of the specified branch

Parameters:

branchName -

functionHandlerClassname -

input -

Returns:

Throws:

Exception

delegate

protected Output<OUT> delegate(String functionHandlerClassname,
                               Input<IN> input)
                        throws Exception

Delegate the execution of the function to the AbstractFunctionHandler specified in the arguments in the context of the default branch

Parameters:

functionHandlerClassname -

input -

Returns:

Throws:

Exception

retrieveFileVersion

protected File retrieveFileVersion(String properyName,
                                   Map<String,String> properties)
                            throws step.grid.filemanager.FileManagerException

Throws:

step.grid.filemanager.FileManagerException

getFileVersionId

protected step.grid.filemanager.FileVersionId getFileVersionId(String properyName,
                                                               Map<String,String> properties)

handle

protected abstract Output<OUT> handle(Input<IN> input)
                               throws Exception

Throws:

Exception

mergeAllProperties

protected Map<String,String> mergeAllProperties(Input<?> input)

getInputPayloadClass

public abstract Class<IN> getInputPayloadClass()

getOutputPayloadClass

public abstract Class<OUT> getOutputPayloadClass()