jp.ne.dti.lares.foozy.ptlog.glue
Class PropertiesCompositionConfig

java.lang.Object
  jp.ne.dti.lares.foozy.ptlog.glue.PropertiesCompositionConfig

Direct Known Subclasses:

PropertiesConverterConfig, PropertiesFilterConfig, PropertiesFormatterConfig

public abstract class PropertiesCompositionConfig

extends java.lang.Object

Configuration utility with Properties class.

This help to build composite Object up from java.util.Properties. Object creation is done in steps shown below.

1. [START OF FACTORY CONFIGURATION]
2. get property names which start with aliasKeyPrefix
3. split each property values by delimiter into two parts
4. get class of factory by Class.forName() with second half
5. create factory object by Class.newInstance()
6. remember first half as alias name of the factory object
7. [END OF FACTORY CONFIGURATION]
8. [START OF COMPONENT CONFIGURAION]
9. get property names which start with componentKeyPrefix
10. sort gotten names in dictionary order(by String#compareTo)
11. get first property value
12. split property value by delimiter into two parts
13. recognize first half of them as alias name of factory
14. recognize another (or empty string, if property value does not contain delimiter in it) as parameter for factory,
15. look factory object up by above factory alias name
16. if factory is not found, and allowFailure is true, then, this throws IllegalArgumentException
17. invoke addComponent(java.lang.Object, java.lang.Object, java.lang.String) to create component object and add it to container
18. repeat above steps on rest properties
19. [END OF COMPONENT CONFIGURAION]
20. return container

You must concretize below method(s) to have this function.

• addComponent(java.lang.Object, java.lang.Object, java.lang.String)

Constructor Summary

PropertiesCompositionConfig(java.lang.String aliasKeyPrefix, java.lang.String componentKeyPrefix, char delimiter, boolean allowFailure)
Constructor.

Method Summary

protected abstract void	addComponent(java.lang.Object containerObject, java.lang.Object factoryObject, java.lang.String parameter)
protected java.lang.Object	create_(java.lang.Object container, java.io.InputStream stream) Create Object from specified stream.
protected java.lang.Object	create_(java.lang.Object container, java.util.Properties properties) Create Object from specified properties.
protected java.lang.Object	create_(java.lang.Object container, java.lang.String filename) Create Object from specified file.

Methods inherited from class java.lang.Object

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

Constructor Detail

PropertiesCompositionConfig

public PropertiesCompositionConfig(java.lang.String aliasKeyPrefix,
                                   java.lang.String componentKeyPrefix,
                                   char delimiter,
                                   boolean allowFailure)

Constructor.

Method Detail

create_

protected final java.lang.Object create_(java.lang.Object container,
                                         java.util.Properties properties)

Create Object from specified properties.

See class description about behavior of this method.

Parameters:

container - of components

properties - containing component configuration

create_

protected final java.lang.Object create_(java.lang.Object container,
                                         java.io.InputStream stream)
                                  throws java.io.IOException

Create Object from specified stream.

ATTENTION:Stream closing is not responsibility of this class but of caller side.

Parameters:

container - of components

stream - to load data into properties.

Throws:

java.io.IOException

create_

protected final java.lang.Object create_(java.lang.Object container,
                                         java.lang.String filename)
                                  throws java.io.IOException

Create Object from specified file.

Parameters:

container - of components

filename - to load data into properties.

Throws:

java.io.IOException

addComponent

protected abstract void addComponent(java.lang.Object containerObject,
                                     java.lang.Object factoryObject,
                                     java.lang.String parameter)