Apache Commons Crypto – JDepend Report Metrics

Metric Results

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

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

Summary

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

Package	TC	CC	AC	Ca	Ce	A	I	D	V
org.apache.commons.crypto.cipher	10	9	1	3	10	10.0%	77.0%	13.0%	1
org.apache.commons.crypto.conf	1	1	0	1	2	0.0%	67.0%	33.0%	1
org.apache.commons.crypto.random	6	5	1	0	7	17.0%	100.0%	17.0%	1
org.apache.commons.crypto.stream	6	6	0	0	12	0.0%	100.0%	0.0%	1
org.apache.commons.crypto.stream.input	3	2	1	2	4	33.0%	67.0%	0.0%	1
org.apache.commons.crypto.stream.output	3	2	1	1	4	33.0%	80.0%	13.0%	1
org.apache.commons.crypto.utils	6	5	1	3	14	17.0%	82.0%	1.0%	1

Packages

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

org.apache.commons.crypto.cipher

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
3	10	10.0%	77.0%	13.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.commons.crypto.cipher.Cipher	org.apache.commons.crypto.cipher.CipherFactory org.apache.commons.crypto.cipher.CipherTransformation org.apache.commons.crypto.cipher.JceCipher org.apache.commons.crypto.cipher.Openssl org.apache.commons.crypto.cipher.Openssl$AlgorithmMode org.apache.commons.crypto.cipher.Openssl$Padding org.apache.commons.crypto.cipher.Openssl$Transform org.apache.commons.crypto.cipher.OpensslCipher org.apache.commons.crypto.cipher.OpensslNative	org.apache.commons.crypto.conf org.apache.commons.crypto.stream org.apache.commons.crypto.utils	java.io java.lang java.nio java.security java.util javax.crypto javax.crypto.spec org.apache.commons.crypto.utils org.apache.commons.logging org.slf4j

org.apache.commons.crypto.conf

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	2	0.0%	67.0%	33.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	org.apache.commons.crypto.conf.ConfigurationKeys	org.apache.commons.crypto.utils	java.lang org.apache.commons.crypto.cipher

org.apache.commons.crypto.random

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	7	17.0%	100.0%	17.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.commons.crypto.random.SecureRandom	org.apache.commons.crypto.random.JavaSecureRandom org.apache.commons.crypto.random.OpensslSecureRandom org.apache.commons.crypto.random.OpensslSecureRandomNative org.apache.commons.crypto.random.OsSecureRandom org.apache.commons.crypto.random.SecureRandomFactory	None	java.io java.lang java.security java.util org.apache.commons.crypto.utils org.apache.commons.logging org.slf4j

org.apache.commons.crypto.stream

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	12	0.0%	100.0%	0.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	org.apache.commons.crypto.stream.CTRCipherInputStream org.apache.commons.crypto.stream.CTRCipherOutputStream org.apache.commons.crypto.stream.CipherInputStream org.apache.commons.crypto.stream.CipherOutputStream org.apache.commons.crypto.stream.PositionedCipherInputStream org.apache.commons.crypto.stream.PositionedCipherInputStream$CipherState	None	java.io java.lang java.nio java.nio.channels java.security java.util java.util.concurrent javax.crypto org.apache.commons.crypto.cipher org.apache.commons.crypto.stream.input org.apache.commons.crypto.stream.output org.apache.commons.crypto.utils

org.apache.commons.crypto.stream.input

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
2	4	33.0%	67.0%	0.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.commons.crypto.stream.input.Input	org.apache.commons.crypto.stream.input.ChannelInput org.apache.commons.crypto.stream.input.StreamInput	org.apache.commons.crypto.stream org.apache.commons.crypto.utils	java.io java.lang java.nio java.nio.channels

org.apache.commons.crypto.stream.output

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	4	33.0%	80.0%	13.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.commons.crypto.stream.output.Output	org.apache.commons.crypto.stream.output.ChannelOutput org.apache.commons.crypto.stream.output.StreamOutput	org.apache.commons.crypto.stream	java.io java.lang java.nio java.nio.channels

org.apache.commons.crypto.utils

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
3	14	17.0%	82.0%	1.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
org.apache.commons.crypto.utils.ReflectionUtils$NegativeCacheSentinel	org.apache.commons.crypto.utils.IOUtils org.apache.commons.crypto.utils.NativeCodeLoader org.apache.commons.crypto.utils.OSInfo org.apache.commons.crypto.utils.ReflectionUtils org.apache.commons.crypto.utils.Utils	org.apache.commons.crypto.cipher org.apache.commons.crypto.random org.apache.commons.crypto.stream	java.io java.lang java.lang.ref java.lang.reflect java.net java.nio java.security java.util org.apache.commons.crypto.cipher org.apache.commons.crypto.conf org.apache.commons.crypto.stream.input org.apache.commons.logging sun.misc sun.nio.ch

Cycles

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

Package	Package Dependencies
org.apache.commons.crypto.cipher	org.apache.commons.crypto.utils org.apache.commons.crypto.cipher
org.apache.commons.crypto.conf	org.apache.commons.crypto.cipher org.apache.commons.crypto.utils org.apache.commons.crypto.cipher
org.apache.commons.crypto.random	org.apache.commons.crypto.utils org.apache.commons.crypto.cipher org.apache.commons.crypto.utils
org.apache.commons.crypto.stream	org.apache.commons.crypto.cipher org.apache.commons.crypto.utils org.apache.commons.crypto.cipher
org.apache.commons.crypto.utils	org.apache.commons.crypto.cipher org.apache.commons.crypto.utils

Explanation

[ 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.