AstroGrid Project - JDepend Source Code Analysis

Metric Results

[ summary] [ packages] [ cycles] [ explanations]

The following document contains the results of a JDependmetric analysis. The various metrics are defined at the bottom of this document.

Summary

[ summary] [ packages] [ cycles] [ explanations]

Package	TC	AC	CC	AC	EC	A	I	D
org.astrogrid	4	1	3	1	10	0.25	91%	16%
org.astrogrid.common.bean	2	1	1	0	3	0.5	100%	50%
org.astrogrid.common.creator	4	0	4	1	3	0	75%	25%
org.astrogrid.common.delegate	2	2	0	0	2	1	100%	100%
org.astrogrid.common.j2ee	1	0	1	0	5	0	100%	0%
org.astrogrid.common.namegen	4	1	3	0	6	0.25	100%	25%
org.astrogrid.common.registry	2	0	2	0	4	0	100%	0%
org.astrogrid.community	2	0	2	0	2	0	100%	0%
org.astrogrid.community.common.util	1	0	1	1	1	0	50%	50%
org.astrogrid.component	3	1	2	0	8	0.33	100%	33%
org.astrogrid.component.descriptor	2	1	1	1	2	0.5	67%	17%
org.astrogrid.config	6	2	4	1	11	0.33	92%	25%
org.astrogrid.devtools	1	0	1	0	6	0	100%	0%
org.astrogrid.i18n	2	0	2	1	5	0	83%	17%
org.astrogrid.io	1	0	1	1	3	0	75%	25%
org.astrogrid.log	2	0	2	2	6	0	75%	25%
org.astrogrid.store	1	0	1	0	2	0	100%	0%
org.astrogrid.test	3	0	3	0	13	0	100%	0%
org.astrogrid.util	6	0	6	3	11	0	79%	21%

Packages

[ summary] [ packages] [ cycles] [ explanations]

org.astrogrid

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	10	25%	91%	16%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
Configurator	AstroGridException Log TemplateManager	org.astrogrid.i18n	java.io java.lang java.util javax.naming org.apache.commons.logging org.astrogrid.i18n org.astrogrid.log org.jconfig org.jconfig.handler org.jconfig.utils

org.astrogrid.common.bean

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	3	50%	100%	50%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
BaseBean	BaseBean$Fns	None	java.lang java.util org.apache.commons.jxpath

org.astrogrid.common.creator

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	3	0%	75%	25%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	Creator CreatorException InstanceCreator InstanceCreatorException	org.astrogrid.common.registry	java.lang java.lang.reflect org.apache.log4j

org.astrogrid.common.delegate

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	2	100%	100%	100%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
AbstractDelegate Delegate	None	None	java.lang org.apache.commons.logging

org.astrogrid.common.j2ee

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	5	0%	100%	0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	EnvEntriesTabulator	None	java.io java.lang javax.servlet javax.xml.transform javax.xml.transform.stream

org.astrogrid.common.namegen

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	6	25%	100%	25%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
NameGen	CommonsLoggingFacade FileNameGen InMemoryNameGen	None	java.io java.lang java.util org.apache.commons.logging org.apache.commons.transaction.file org.apache.commons.transaction.util

org.astrogrid.common.registry

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	4	0%	100%	0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	InstanceRegistry Registry	None	java.io java.lang java.util org.astrogrid.common.creator

org.astrogrid.community

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	2	0%	100%	0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	Account User	None	java.lang org.astrogrid.community.common.util

org.astrogrid.community.common.util

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	1	0%	50%	50%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	CommunityMessage	org.astrogrid.community	java.lang

org.astrogrid.component

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	8	33%	100%	33%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
ComponentManager	ComponentManagerException EmptyComponentManager	None	java.io java.lang java.util junit.framework org.apache.commons.logging org.astrogrid.component.descriptor org.picocontainer org.picocontainer.defaults

org.astrogrid.component.descriptor

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	2	50%	67%	17%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
ComponentDescriptor	SimpleComponentDescriptor	org.astrogrid.component	java.lang junit.framework

org.astrogrid.config

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	11	33%	92%	25%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
Config SimpleConfig	ConfigException ConfigFactory FailbackConfig PropertyNotFoundException	org.astrogrid.util	java.io java.lang java.net java.security java.util javax.naming javax.xml.parsers org.apache.commons.logging org.astrogrid.util org.w3c.dom org.xml.sax

org.astrogrid.devtools

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	6	0%	100%	0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	JarFinder	None	java.io java.lang java.util java.util.jar java.util.zip org.astrogrid.util

org.astrogrid.i18n

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	5	0%	83%	17%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	AstroGridMessage AstroGridMessage$ResourceBundleKey	org.astrogrid	java.lang java.text java.util org.astrogrid org.astrogrid.log

org.astrogrid.io

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	3	0%	75%	25%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	Piper	org.astrogrid.test	java.io java.lang org.apache.commons.logging

org.astrogrid.log

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
2	6	0%	75%	25%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	ConsoleFormatter Log	org.astrogrid org.astrogrid.i18n	java.io java.lang java.text java.util java.util.logging org.apache.commons.logging

org.astrogrid.store

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	2	0%	100%	0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	Ivorn	None	java.lang java.net

org.astrogrid.test

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	13	0%	100%	0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	AstrogridAssert AstrogridAssert$AstrogridAssertDefaultHandler OptionalTestCase	None	java.io java.lang java.net java.util javax.xml.parsers junit.framework org.apache.commons.logging org.astrogrid.io org.astrogrid.util org.custommonkey.xmlunit org.w3c.dom org.xml.sax org.xml.sax.helpers

org.astrogrid.util

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
3	11	0%	79%	21%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	ClassPathUtils DomHelper DomLoader TimeStamp TypeSafeEnumerator Workspace	org.astrogrid.config org.astrogrid.devtools org.astrogrid.test	java.io java.lang java.net java.util java.util.jar javax.xml.parsers org.apache.axis.utils org.apache.commons.logging org.astrogrid.config org.w3c.dom org.xml.sax

Cycles

[ summary] [ packages] [ cycles] [ explanations]

Package	Cyclic Dependencies
org.astrogrid	org.astrogrid.i18n org.astrogrid
org.astrogrid.config	org.astrogrid.util org.astrogrid.config
org.astrogrid.devtools	org.astrogrid.util org.astrogrid.config org.astrogrid.util
org.astrogrid.i18n	org.astrogrid org.astrogrid.i18n
org.astrogrid.test	org.astrogrid.util org.astrogrid.config org.astrogrid.util
org.astrogrid.util	org.astrogrid.config org.astrogrid.util

Explanations

[ summary] [ packages] [ cycles] [ explanations]

The following explanations are for quick reference and are lifted directly from the original JDepend documentation.

Term	Description
Number of Classes	The number of concrete and abstract classes (and interfaces) in the package is an indicator of the extensibility of the package.
Afferent Couplings	The number of other packages that depend upon classes within the package is an indicator of the package's responsibility.
Efferent Couplings	The number of other packages that the classes in the package depend upon is an indicator of the package's independence.
Abstractness	The ratio of the number of abstract classes (and interfaces) in the analyzed package to the total number of classes in the analyzed package. The range for this metric is 0 to 1, with A=0 indicating a completely concrete package and A=1 indicating a completely abstract package.
Instability	The ratio of efferent coupling (Ce) to total coupling (Ce / (Ce + Ca)). This metric is an indicator of the package's resilience to change. The range for this metric is 0 to 1, with I=0 indicating a completely stable package and I=1 indicating a completely instable package.
Distance	The perpendicular distance of a package from the idealized line A + I = 1. This metric is an indicator of the package's balance between abstractness and stability. A package squarely on the main sequence is optimally balanced with respect to its abstractness and stability. Ideal packages are either completely abstract and stable (x=0, y=1) or completely concrete and instable (x=1, y=0). The range for this metric is 0 to 1, with D=0 indicating a package that is coincident with the main sequence and D=1 indicating a package that is as far from the main sequence as possible.
Cycles	Packages participating in a package dependency cycle are in a deadly embrace with respect to reusability and their release cycle. Package dependency cycles can be easily identified by reviewing the textual reports of dependency cycles. Once these dependency cycles have been identified with JDepend, they can be broken by employing various object-oriented techniques.

Project Documentation

Metric Results

Summary

Packages

org.astrogrid

org.astrogrid.common.bean

org.astrogrid.common.creator

org.astrogrid.common.delegate

org.astrogrid.common.j2ee

org.astrogrid.common.namegen

org.astrogrid.common.registry

org.astrogrid.community

org.astrogrid.community.common.util

org.astrogrid.component

org.astrogrid.component.descriptor

org.astrogrid.config

org.astrogrid.devtools

org.astrogrid.i18n

org.astrogrid.io

org.astrogrid.log

org.astrogrid.store

org.astrogrid.test

org.astrogrid.util

Cycles

Explanations