biz.hammurapi.config
Class ComponentBase

java.lang.Object
  biz.hammurapi.config.ComponentBase

All Implemented Interfaces:

Component, Context, MeasurementCollector, MeasurementConsumer

Direct Known Subclasses:

JndiBridge, JndiWrapper, RmiRegistryComponent, ServiceBase, ThreadPool

public abstract class ComponentBase
extends java.lang.Object
implements Component, Context, MeasurementConsumer, MeasurementCollector

Base class for components. Implements some standard functions. Measurement collection is delegated if measurement consumer is set.

Author:

Pavel Vlasov

Field Summary

protected java.lang.Object

owner

Constructor Summary

ComponentBase()

Method Summary

void	addMeasurement(java.lang.String name, double value, long time) Adds measurement
java.lang.Object	get(java.lang.String name)
protected java.lang.Object	getChild(java.lang.String name) Override this method if component has subcomponents.
MeasurementConsumer	getMeasurementConsumer()
java.lang.Object	getOwner()
java.lang.Object	getOwner(java.lang.Class ownerType) Finds component owner of particular type.
void	setMeasurementConsumer(MeasurementConsumer measurementConsumer) Sets measurement consumer to pass measurements to.
void	setOwner(java.lang.Object owner) Plugs the component into container and naming bus.

Methods inherited from class java.lang.Object

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

Methods inherited from interface biz.hammurapi.config.Component

start, stop

Field Detail

owner

protected java.lang.Object owner

Constructor Detail

ComponentBase

public ComponentBase()

Method Detail

getChild

protected java.lang.Object getChild(java.lang.String name)

Override this method if component has subcomponents.

Parameters:

name -

Returns:

setOwner

public void setOwner(java.lang.Object owner)

Description copied from interface: Component

Plugs the component into container and naming bus.

Specified by:

setOwner in interface Component

get

public java.lang.Object get(java.lang.String name)

Specified by:

get in interface Context

setMeasurementConsumer

public void setMeasurementConsumer(MeasurementConsumer measurementConsumer)

Description copied from interface: MeasurementCollector

Sets measurement consumer to pass measurements to.

Specified by:

setMeasurementConsumer in interface MeasurementCollector

getMeasurementConsumer

public MeasurementConsumer getMeasurementConsumer()

addMeasurement

public void addMeasurement(java.lang.String name,
                           double value,
                           long time)

Description copied from interface: MeasurementConsumer

Adds measurement

Specified by:

addMeasurement in interface MeasurementConsumer

Parameters:

name - Metric name

value - Measurement value

time - Time when metric was collected. If this parameter is 0 then metric subsystem uses System.currentTimeMillis() to provide correct value if needed.

getOwner

public java.lang.Object getOwner(java.lang.Class ownerType)

Finds component owner of particular type.

Parameters:

ownerType -

Returns:

Owner which is an instance of specified type or null if no such owner is found.

getOwner

public java.lang.Object getOwner()

Returns:

Immediate component owner