kieker.analysis.plugin.reader.jms

Class JmsReader

java.lang.Object

kieker.analysis.analysisComponent.AbstractAnalysisComponent

kieker.analysis.plugin.AbstractPlugin

kieker.analysis.plugin.reader.AbstractReaderPlugin

kieker.analysis.plugin.reader.jms.JmsReader

All Implemented Interfaces:

IAnalysisComponent, IPlugin, IReaderPlugin

public final class JmsReader
extends AbstractReaderPlugin

Reads monitoring records from a (remote or local) JMS queue.

Since:

0.95a

Author:

Andre van Hoorn, Matthias Rohr

Nested Class Summary

Nested classes/interfaces inherited from interface kieker.analysis.plugin.IPlugin

IPlugin.PluginInputPortReference, IPlugin.STATE

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	CONFIG_PROPERTY_NAME_DESTINATION The name of the configuration determining the JMS destination (e.g.
static java.lang.String	CONFIG_PROPERTY_NAME_FACTORYLOOKUP The name of the configuration determining the name of the used JMS factory.
static java.lang.String	CONFIG_PROPERTY_NAME_PROVIDERURL The name of the configuration determining the JMS provider URL.
static java.lang.String	OUTPUT_PORT_NAME_RECORDS The name of the output port delivering the received records.

Fields inherited from class kieker.analysis.analysisComponent.AbstractAnalysisComponent

CONFIG_NAME, configuration, log, LOG, projectContext, recordsTimeUnitFromProjectContext

Constructor Summary

Constructors

Constructor and Description
JmsReader(Configuration configuration, IProjectContext projectContext) Creates a new instance of this class using the given parameters.

Method Summary

Methods

Modifier and Type	Method and Description
Configuration	getCurrentConfiguration() This method should deliver a Configuration object containing the current configuration of this instance.
protected Log	getLog()
boolean	read() A call to this method is a blocking call.
void	terminate(boolean error) Initiates a termination of the plugin.

Methods inherited from class kieker.analysis.plugin.reader.AbstractReaderPlugin

init

Methods inherited from class kieker.analysis.plugin.AbstractPlugin

areAllRepositoryPortsConnected, connect, connect, deliver, getAllDisplayNames, getAllInputPortNames, getAllOutputPortNames, getAllRepositoryPortNames, getConnectedPlugins, getCurrentRepositories, getDefaultConfiguration, getIncomingPlugins, getPluginDescription, getPluginName, getRepository, getState, isConnectionAllowed, notifyNewIncomingConnection, notifyNewOutgoingConnection, shutdown, start

Methods inherited from class kieker.analysis.analysisComponent.AbstractAnalysisComponent

getName

Methods inherited from class java.lang.Object

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

Methods inherited from interface kieker.analysis.plugin.IPlugin

connect, getAllDisplayNames, getAllInputPortNames, getAllOutputPortNames, getAllRepositoryPortNames, getConnectedPlugins, getCurrentRepositories, getName, getPluginDescription, getPluginName, getState

Field Detail

OUTPUT_PORT_NAME_RECORDS

public static final java.lang.String OUTPUT_PORT_NAME_RECORDS

The name of the output port delivering the received records.

See Also:

Constant Field Values

CONFIG_PROPERTY_NAME_PROVIDERURL

public static final java.lang.String CONFIG_PROPERTY_NAME_PROVIDERURL

The name of the configuration determining the JMS provider URL.

See Also:

Constant Field Values

CONFIG_PROPERTY_NAME_DESTINATION

public static final java.lang.String CONFIG_PROPERTY_NAME_DESTINATION

The name of the configuration determining the JMS destination (e.g. queue1).

See Also:

Constant Field Values

CONFIG_PROPERTY_NAME_FACTORYLOOKUP

public static final java.lang.String CONFIG_PROPERTY_NAME_FACTORYLOOKUP

The name of the configuration determining the name of the used JMS factory.

See Also:

Constant Field Values

Constructor Detail

JmsReader

public JmsReader(Configuration configuration,
         IProjectContext projectContext)
          throws java.lang.IllegalArgumentException

Creates a new instance of this class using the given parameters.

Parameters:

configuration - The configuration used to initialize the whole reader. Keep in mind that the configuration should contain the following properties:

• The property CONFIG_PROPERTY_NAME_PROVIDERURL, e.g. tcp://localhost:3035/
• The property CONFIG_PROPERTY_NAME_DESTINATION, e.g. queue1
• The property CONFIG_PROPERTY_NAME_FACTORYLOOKUP, e.g. org.exolab.jms.jndi.InitialContextFactory

projectContext - The project context for this component.

Throws:

java.lang.IllegalArgumentException - If one of the properties is empty.

Method Detail

read

public boolean read()

A call to this method is a blocking call.

Returns:

true if the method succeeds, false otherwise.

terminate

public void terminate(boolean error)

Initiates a termination of the plugin. This method is only used by the framework and should not be called manually. Use the method AnalysisController.terminate(boolean) instead. After receiving this notification, the plugin should terminate any running methods, e.g., read for readers.

Parameters:

error - Determines whether the plugin is terminated due to an error or not.

getCurrentConfiguration

public Configuration getCurrentConfiguration()

This method should deliver a Configuration object containing the current configuration of this instance. In other words: The constructor should be able to use the given object to initialize a new instance of this class with the same intern properties.

Specified by:

getCurrentConfiguration in interface IAnalysisComponent

Specified by:

getCurrentConfiguration in interface IPlugin

Specified by:

getCurrentConfiguration in class AbstractAnalysisComponent

Returns:

A completely filled configuration object.

getLog

protected Log getLog()