kieker.analysis

Class AnalysisController

java.lang.Object

kieker.analysis.AnalysisController

All Implemented Interfaces:

IAnalysisController, IProjectContext

public final class AnalysisController
extends java.lang.Object
implements IAnalysisController

The AnalysisController can be used to configure, control, save and load an analysis instance. It is responsible for the life cycle of the readers, filters and repositories.

Since:

0.95a

Author:

Andre van Hoorn, Matthias Rohr, Nils Christian Ehmke, Jan Waller

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AnalysisController.AnalysisControllerWithMapping This is a wrapper for the AnalysisController which contains a mapping between the model instances and the actual objects as well.
static interface	AnalysisController.IStateObserver This interface can be used for observers which want to get notified about state changes of an analysis controller.
static class	AnalysisController.STATE An enumeration used to describe the state of an AnalysisController.

Field Summary

Fields inherited from interface kieker.analysis.IProjectContext

CONFIG_PROPERTY_NAME_PROJECT_NAME, CONFIG_PROPERTY_NAME_RECORDS_TIME_UNIT

Constructor Summary

Constructors

Constructor and Description
AnalysisController() Constructs an AnalysisController instance.
AnalysisController(Configuration configuration) Constructs an AnalysisController instance using the given parameter.
AnalysisController(java.io.File file) This constructors creates an AnalysisController instance, using the given file to load an analysis model.
AnalysisController(java.io.File file, java.lang.ClassLoader classLoader) This constructors creates an AnalysisController instance, using the given file to load an analysis model and the given classloader to initialize the objects.
AnalysisController(MIProject project) Creates a new instance of the class AnalysisController but uses the given instance of MIProject to construct the analysis.
AnalysisController(MIProject project, java.lang.ClassLoader classLoader) Creates a new instance of the class AnalysisController but uses the given instance of @link{Project} to construct the analysis.
AnalysisController(java.lang.String projectName) Constructs an AnalysisController instance using the given parameter.

Method Summary

Methods

Modifier and Type	Method and Description
protected void	awaitInitialization() Causes the calling thread to wait until the analysis controller has been initialized.
void	connect(AbstractPlugin src, java.lang.String outputPortName, AbstractPlugin dst, java.lang.String inputPortName) This method should be used to connect two plugins.
void	connect(AbstractPlugin plugin, java.lang.String repositoryPort, AbstractRepository repository) Connects the given repository to this plugin via the given name.
static AnalysisController.AnalysisControllerWithMapping	createAnalysisController(MIProject project, java.lang.ClassLoader classLoader) This is a factory method which can be used to create a new instance of AnalysisController, but delivers the mapping between the MIProject and the actual analysis.
MIProject	getCurrentConfiguration() This method delivers the current configuration of this instance as an instance of MIProject.
java.util.Collection<AbstractFilterPlugin>	getFilters() Delivers an unmodifiable collection of all filters.
java.lang.String	getProjectName() Delivers the current name of the project.
java.lang.String	getProperty(java.lang.String key) Delivers the value for the given (global) property within the analysis.
java.util.Collection<AbstractReaderPlugin>	getReaders() Delivers an unmodifiable collection of all readers.
java.util.Collection<AbstractRepository>	getRepositories() Delivers an unmodifiable collection of all repositories.
AnalysisController.STATE	getState() Delivers the current state of the analysis controller.
void	handleKiekerMetadataRecord(KiekerMetadataRecord record) Called whenever an KiekerMetadataRecord is found inside the filters network.
static MIProject	loadFromFile(java.io.File file) This method can be used to load a meta model instance from a given file.
void	registerFilter(AbstractFilterPlugin filter) Registers the given filter with this analysis instance.
void	registerReader(AbstractReaderPlugin reader) Registers the given reader with this analysis instance.
void	registerRepository(AbstractRepository repository) Registers the given repository with this analysis instance.
void	registerStateObserver(AnalysisController.IStateObserver stateObserver) Registers the given instance as a new state observer.
void	run() Starts an AnalysisController instance.
void	saveToFile(java.io.File file) This method can be used to store the current configuration of this analysis controller in a specified file.
static void	saveToFile(java.io.File file, MIProject project) This method can be used to save the given instance of MIProject within a given file.
void	saveToFile(java.lang.String pathname) This method can be used to store the current configuration of this analysis controller in a specified file.
void	terminate() Initiates a termination of the analysis.
void	terminate(boolean error) Initiates a termination of the analysis.
boolean	tryRegisterComponentName(java.lang.String name) This method tries to atomically register the given name for a component.
void	unregisterStateObserver(AnalysisController.IStateObserver stateObserver) Unregisters the given instance from the state observers.

Methods inherited from class java.lang.Object

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

Constructor Detail

AnalysisController

public AnalysisController()

Constructs an AnalysisController instance.

AnalysisController

public AnalysisController(java.lang.String projectName)

Constructs an AnalysisController instance using the given parameter.

Parameters:

projectName - The name of the project.

AnalysisController

public AnalysisController(java.io.File file)
                   throws java.io.IOException,
                          AnalysisConfigurationException

This constructors creates an AnalysisController instance, using the given file to load an analysis model. The given file should therefore be an instance of the analysis meta model.

Parameters:

file - The configuration file for the analysis.

Throws:

java.io.IOException - If the given file could not be loaded or is not a valid kax-configuration file.

AnalysisConfigurationException - If one or more plugins or repositories could not be created, one or more properties of the plugins are invalid or if a connection between two filters is not allowed.

AnalysisController

public AnalysisController(java.io.File file,
                  java.lang.ClassLoader classLoader)
                   throws java.io.IOException,
                          AnalysisConfigurationException

This constructors creates an AnalysisController instance, using the given file to load an analysis model and the given classloader to initialize the objects. The given file should therefore be an instance of the analysis meta model.

Parameters:

file - The configuration file for the analysis.

classLoader - The classloader used to initialize the plugins etc.

Throws:

java.io.IOException - If the given file could not be loaded or is not a valid kax-configuration file.

AnalysisConfigurationException - If one or more plugins or repositories could not be created, one or more properties of the plugins are invalid or if a connection between two filters is not allowed.

AnalysisController

public AnalysisController(MIProject project)
                   throws java.lang.NullPointerException,
                          AnalysisConfigurationException

Creates a new instance of the class AnalysisController but uses the given instance of MIProject to construct the analysis.

Parameters:

project - The project instance for the analysis.

Throws:

AnalysisConfigurationException - If the given project could not be loaded.

java.lang.NullPointerException - If the project is null.

AnalysisController

public AnalysisController(MIProject project,
                  java.lang.ClassLoader classLoader)
                   throws java.lang.NullPointerException,
                          AnalysisConfigurationException

Creates a new instance of the class AnalysisController but uses the given instance of @link{Project} to construct the analysis.

Parameters:

project - The project instance for the analysis.

classLoader - The class loader used for the initializing.

Throws:

java.lang.NullPointerException - If the project is null.

AnalysisConfigurationException - If the given project could not be loaded.

AnalysisController

public AnalysisController(Configuration configuration)

Constructs an AnalysisController instance using the given parameter.

Parameters:

configuration - The global configuration of this analysis. All plugins can indirectly access it.

Method Detail

handleKiekerMetadataRecord

public final void handleKiekerMetadataRecord(KiekerMetadataRecord record)

Called whenever an KiekerMetadataRecord is found inside the filters network. Currently this method only logs all details.

Parameters:

record - the KiekerMetadataRecord containing the information

registerStateObserver

public final void registerStateObserver(AnalysisController.IStateObserver stateObserver)

Registers the given instance as a new state observer. All instances are informed when the state (Running, Terminated etc) changes and get the new state as an object.

Specified by:

registerStateObserver in interface IAnalysisController

Parameters:

stateObserver - The observer to be registered.

unregisterStateObserver

public final void unregisterStateObserver(AnalysisController.IStateObserver stateObserver)

Unregisters the given instance from the state observers.

Specified by:

unregisterStateObserver in interface IAnalysisController

Parameters:

stateObserver - The observer to be unregistered.

getProperty

public final java.lang.String getProperty(java.lang.String key)

Delivers the value for the given (global) property within the analysis.

Specified by:

getProperty in interface IProjectContext

Parameters:

key - The key of the property.

Returns:

The value for the given property if it exists, an empty string otherwise.

saveToFile

public final void saveToFile(java.io.File file)
                      throws java.io.IOException,
                             AnalysisConfigurationException

This method can be used to store the current configuration of this analysis controller in a specified file. The file can later be used to initialize the analysis controller.

Specified by:

saveToFile in interface IAnalysisController

Parameters:

file - The file in which the configuration will be stored.

Throws:

java.io.IOException - If an exception during the storage occurred.

AnalysisConfigurationException - If the current configuration is somehow invalid.

See Also:

IAnalysisController.saveToFile(String)

saveToFile

public final void saveToFile(java.lang.String pathname)
                      throws java.io.IOException,
                             AnalysisConfigurationException

This method can be used to store the current configuration of this analysis controller in a specified file. It is just a convenient method which does the same as #saveToFile(File).

Specified by:

saveToFile in interface IAnalysisController

Parameters:

pathname - The pathname of the file in which the configuration will be stored.

Throws:

java.io.IOException - If an exception during the storage occurred.

AnalysisConfigurationException - If the current configuration is somehow invalid.

See Also:

IAnalysisController.saveToFile(File)

connect

public final void connect(AbstractPlugin src,
           java.lang.String outputPortName,
           AbstractPlugin dst,
           java.lang.String inputPortName)
                   throws java.lang.IllegalStateException,
                          AnalysisConfigurationException

This method should be used to connect two plugins. The plugins have to be registered within this controller instance.

Specified by:

connect in interface IAnalysisController

Parameters:

src - The source plugin.

outputPortName - The output port of the source plugin.

dst - The destination plugin.

inputPortName - The input port of the destination port.

Throws:

java.lang.IllegalStateException - If this instance has already been started or has already been terminated.

AnalysisConfigurationException - If the port names or the given plugins are invalid or not compatible.

connect

public final void connect(AbstractPlugin plugin,
           java.lang.String repositoryPort,
           AbstractRepository repository)
                   throws java.lang.IllegalStateException,
                          AnalysisConfigurationException

Connects the given repository to this plugin via the given name.

Specified by:

connect in interface IAnalysisController

Parameters:

plugin - The plugin to be connected.

repositoryPort - The name of the port to connect the repository.

repository - The repository which should be used.

Throws:

java.lang.IllegalStateException - If this instance has already been started or has already been terminated.

AnalysisConfigurationException - If the port names or the given objects are invalid or not compatible.

getCurrentConfiguration

public final MIProject getCurrentConfiguration()
                                        throws AnalysisConfigurationException

This method delivers the current configuration of this instance as an instance of MIProject.

Specified by:

getCurrentConfiguration in interface IProjectContext

Returns:

A filled meta model instance.

Throws:

AnalysisConfigurationException - If the current configuration is somehow invalid.

run

public final void run()
               throws java.lang.IllegalStateException,
                      AnalysisConfigurationException

Starts an AnalysisController instance. The method returns after all configured readers finished reading and all analysis plug-ins terminated On errors during the initialization, Exceptions are thrown.

Specified by:

run in interface IAnalysisController

Throws:

java.lang.IllegalStateException - If the current instance has already been started or already been terminated.

AnalysisConfigurationException - If plugins with mandatory repositories have not been connected properly or couldn't be initialized.

awaitInitialization

protected final void awaitInitialization()

Causes the calling thread to wait until the analysis controller has been initialized.

terminate

public final void terminate()

Initiates a termination of the analysis.

Specified by:

terminate in interface IAnalysisController

terminate

public final void terminate(boolean error)

Initiates a termination of the analysis.

Specified by:

terminate in interface IAnalysisController

Parameters:

error - Determines whether this is a normal termination or an termination due to an error during the analysis.

registerReader

public final void registerReader(AbstractReaderPlugin reader)
                          throws java.lang.IllegalStateException

Registers the given reader with this analysis instance. This method is for internal use only!

Parameters:

reader - The reader to register with this analysis.

Throws:

java.lang.IllegalStateException - If the analysis has already been started when this method is called.

registerFilter

public final void registerFilter(AbstractFilterPlugin filter)
                          throws java.lang.IllegalStateException

Registers the given filter with this analysis instance. This method is for internal use only!

Parameters:

filter - The filter to register with this analysis.

Throws:

java.lang.IllegalStateException - If the analysis has already been started when this method is called.

registerRepository

public final void registerRepository(AbstractRepository repository)
                              throws java.lang.IllegalStateException

Registers the given repository with this analysis instance. This method is for internal use only!

Parameters:

repository - The repository to register with this analysis.

Throws:

java.lang.IllegalStateException - If the analysis has already been started when this method is called.

getProjectName

public final java.lang.String getProjectName()

Delivers the current name of the project.

Specified by:

getProjectName in interface IProjectContext

Returns:

The current project name.

getReaders

public final java.util.Collection<AbstractReaderPlugin> getReaders()

Delivers an unmodifiable collection of all readers.

Specified by:

getReaders in interface IAnalysisController

Returns:

All registered readers.

getFilters

public final java.util.Collection<AbstractFilterPlugin> getFilters()

Delivers an unmodifiable collection of all filters.

Specified by:

getFilters in interface IAnalysisController

Returns:

All registered filters.

getRepositories

public final java.util.Collection<AbstractRepository> getRepositories()

Delivers an unmodifiable collection of all repositories.

Specified by:

getRepositories in interface IAnalysisController

Returns:

All registered repositories.

getState

public final AnalysisController.STATE getState()

Delivers the current state of the analysis controller.

Specified by:

getState in interface IProjectContext

Returns:

The current state.

loadFromFile

public static final MIProject loadFromFile(java.io.File file)
                                    throws java.io.IOException

This method can be used to load a meta model instance from a given file.

Parameters:

file - The file to be loaded.

Returns:

An instance of MIProject if everything went well.

Throws:

java.io.IOException - If something during loading went wrong.

saveToFile

public static final void saveToFile(java.io.File file,
              MIProject project)
                             throws java.io.IOException

This method can be used to save the given instance of MIProject within a given file.

Parameters:

file - The file to be used for the storage.

project - The project to be stored.

Throws:

java.io.IOException - In case of errors.

createAnalysisController

public static final AnalysisController.AnalysisControllerWithMapping createAnalysisController(MIProject project,
                                                                        java.lang.ClassLoader classLoader)
                                                                                       throws java.lang.NullPointerException,
                                                                                              AnalysisConfigurationException

This is a factory method which can be used to create a new instance of AnalysisController, but delivers the mapping between the MIProject and the actual analysis. It calls the constructor AnalysisController(MIProject, ClassLoader).

Parameters:

project - The project to be loaded.

classLoader - The class loader used to load the instances.

Returns:

The newly created controller and the mapping.

Throws:

java.lang.NullPointerException - If the project is null.

AnalysisConfigurationException - If the given project could not be loaded.

tryRegisterComponentName

public boolean tryRegisterComponentName(java.lang.String name)

This method tries to atomically register the given name for a component.

Parameters:

name - The component name to register

Returns:

true if and only if the given name is not already used and could now be registered.