kieker.analysis.plugin.reader.amqp

Class AmqpReader

java.lang.Object

kieker.analysis.analysisComponent.AbstractAnalysisComponent

kieker.analysis.plugin.AbstractPlugin

kieker.analysis.plugin.reader.AbstractReaderPlugin

kieker.analysis.plugin.reader.AbstractStringRegistryReaderPlugin

kieker.analysis.plugin.reader.amqp.AmqpReader

All Implemented Interfaces:

IAnalysisComponent, IPlugin, IReaderPlugin

public final class AmqpReader
extends AbstractStringRegistryReaderPlugin

Reader plugin that reads monitoring records from an AMQP queue.

Since:

1.12

Author:

Holger Knoche

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_CACHE_DURATION The name of the configuration property for the cache duration (in seconds) for string registries.
static java.lang.String	CONFIG_PROPERTY_HEARTBEAT The name of the configuration property for the heartbeat timeout.
static java.lang.String	CONFIG_PROPERTY_QUEUENAME The name of the configuration property for the AMQP queue name.
static java.lang.String	CONFIG_PROPERTY_URI The name of the configuration property for the server URI.
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
AmqpReader(Configuration configuration, IProjectContext projectContext) Creates a new AMQP reader with the given configuration in the given context.

Method Summary

Methods

Modifier and Type	Method and Description
protected void	deliverRecord(IMonitoringRecord monitoringRecord) Delivers the given record to the appropriate output port(s).
Configuration	getCurrentConfiguration() This method should deliver a Configuration object containing the current configuration of this instance.
boolean	init() Initiates the start of a component.
boolean	read() Starts the reader.
void	terminate(boolean error) Initiates a termination of the plugin.

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

createCache, ensureThreadsStarted, handleRegistryRecord, handleRegularRecord

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_URI

public static final java.lang.String CONFIG_PROPERTY_URI

The name of the configuration property for the server URI.

See Also:

Constant Field Values

CONFIG_PROPERTY_QUEUENAME

public static final java.lang.String CONFIG_PROPERTY_QUEUENAME

The name of the configuration property for the AMQP queue name.

See Also:

Constant Field Values

CONFIG_PROPERTY_HEARTBEAT

public static final java.lang.String CONFIG_PROPERTY_HEARTBEAT

The name of the configuration property for the heartbeat timeout.

See Also:

Constant Field Values

CONFIG_PROPERTY_CACHE_DURATION

public static final java.lang.String CONFIG_PROPERTY_CACHE_DURATION

The name of the configuration property for the cache duration (in seconds) for string registries.

See Also:

Constant Field Values

Constructor Detail

AmqpReader

public AmqpReader(Configuration configuration,
          IProjectContext projectContext)

Creates a new AMQP reader with the given configuration in the given context.

Parameters:

configuration - The configuration for this reader

projectContext - The project context for this component

Method Detail

init

public boolean init()

Description copied from class: AbstractReaderPlugin

Initiates the start of a component. This method is called once when a AnalysisController's run() method is called. This implementation must not be blocking! Asynchronous consumers would spawn (an) asynchronous thread(s) in this method.

Specified by:

init in interface IPlugin

Overrides:

init in class AbstractStringRegistryReaderPlugin

Returns:

true on success; false otherwise.

getCurrentConfiguration

public Configuration getCurrentConfiguration()

Description copied from class: AbstractAnalysisComponent

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.

read

public boolean read()

Description copied from interface: IReaderPlugin

Starts the reader. This method is intended to be a blocking operation, i.e., it is assumed that reading has finished before this method returns. The method should indicate an error by the return value false. In asynchronous scenarios, the IPlugin.terminate(boolean) method can be used to initiate the termination of this method.

Returns:

true if reading was successful; false if an error occurred

terminate

public void terminate(boolean error)

Description copied from interface: IPlugin

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.

deliverRecord

protected void deliverRecord(IMonitoringRecord monitoringRecord)

Description copied from class: AbstractStringRegistryReaderPlugin

Delivers the given record to the appropriate output port(s).

Specified by:

deliverRecord in class AbstractStringRegistryReaderPlugin

Parameters:

monitoringRecord - The monitoring record to deliver