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
net.java.truevfs.comp.zip 67 50 17 0 25 25.0% 100.0% 25.0% 1
net.java.truevfs.comp.zip.crypto 6 4 2 1 8 33.0% 89.0% 22.0% 1

Packages

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

net.java.truevfs.comp.zip

Afferent Couplings Efferent Couplings Abstractness Instability Distance
0 25 25.0% 100.0% 25.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
net.java.truevfs.comp.zip.AbstractZipFile
net.java.truevfs.comp.zip.AbstractZipOutputStream
net.java.truevfs.comp.zip.AbstractZipOutputStream$Crc32OutputMethod
net.java.truevfs.comp.zip.AbstractZipOutputStream$EncryptedOutputMethod
net.java.truevfs.comp.zip.DateTimeConverter
net.java.truevfs.comp.zip.DecoratingOutputMethod
net.java.truevfs.comp.zip.ExtraField
net.java.truevfs.comp.zip.OutputMethod
net.java.truevfs.comp.zip.WinZipAesParameters
net.java.truevfs.comp.zip.ZipCharsetParameters
net.java.truevfs.comp.zip.ZipCryptoParameters
net.java.truevfs.comp.zip.ZipEntryFactory
net.java.truevfs.comp.zip.ZipFileParameters
net.java.truevfs.comp.zip.ZipOutputStreamParameters
net.java.truevfs.comp.zip.ZipParameters
net.java.truevfs.comp.zip.ZipParametersProvider
net.java.truevfs.comp.zip.package-info
 net.java.truevfs.comp.zip.AbstractZipFile$EntryReadOnlyChannel
net.java.truevfs.comp.zip.AbstractZipFile$SafeBufferedReadOnlyChannel
net.java.truevfs.comp.zip.AbstractZipOutputStream$AppendingLittleEndianOutputStream
net.java.truevfs.comp.zip.AbstractZipOutputStream$BZip2OutputMethod
net.java.truevfs.comp.zip.AbstractZipOutputStream$Crc32CheckingOutputMethod
net.java.truevfs.comp.zip.AbstractZipOutputStream$Crc32UpdatingOutputMethod
net.java.truevfs.comp.zip.AbstractZipOutputStream$DeflaterOutputMethod
net.java.truevfs.comp.zip.AbstractZipOutputStream$RawOutputMethod
net.java.truevfs.comp.zip.AbstractZipOutputStream$WinZipAesOutputMethod
net.java.truevfs.comp.zip.CheckedInputStreamWithSkipBufferSize
net.java.truevfs.comp.zip.Constants
net.java.truevfs.comp.zip.CountingInputStream
net.java.truevfs.comp.zip.Crc32Exception
net.java.truevfs.comp.zip.Crc32InputStream
net.java.truevfs.comp.zip.Crc32OutputStream
net.java.truevfs.comp.zip.DateTimeConverter$1
net.java.truevfs.comp.zip.DateTimeConverter$2
net.java.truevfs.comp.zip.DefaultExtraField
net.java.truevfs.comp.zip.DefaultZipCharsetParameters
net.java.truevfs.comp.zip.DefaultZipFileParameters
net.java.truevfs.comp.zip.DefaultZipOutputStreamParameters
net.java.truevfs.comp.zip.DummyByteChannelInputStream
net.java.truevfs.comp.zip.ExtraFields
net.java.truevfs.comp.zip.LittleEndian
net.java.truevfs.comp.zip.OffsetPositionMapper
net.java.truevfs.comp.zip.PositionMapper
net.java.truevfs.comp.zip.UByte
net.java.truevfs.comp.zip.UInt
net.java.truevfs.comp.zip.ULong
net.java.truevfs.comp.zip.UShort
net.java.truevfs.comp.zip.WinZipAesCipher
net.java.truevfs.comp.zip.WinZipAesEntryParameters
net.java.truevfs.comp.zip.WinZipAesExtraField
net.java.truevfs.comp.zip.WinZipAesOutputStream
net.java.truevfs.comp.zip.WinZipAesReadOnlyChannel
net.java.truevfs.comp.zip.WinZipAesUtils
net.java.truevfs.comp.zip.ZipAuthenticationException
net.java.truevfs.comp.zip.ZipCryptoException
net.java.truevfs.comp.zip.ZipDeflaterOutputStream
net.java.truevfs.comp.zip.ZipEntry
net.java.truevfs.comp.zip.ZipFile
net.java.truevfs.comp.zip.ZipFile$1CloneEnumeration
net.java.truevfs.comp.zip.ZipFile$1EntryIterator
net.java.truevfs.comp.zip.ZipFile$ZipSource
net.java.truevfs.comp.zip.ZipInflaterInputStream
net.java.truevfs.comp.zip.ZipKeyException
net.java.truevfs.comp.zip.ZipOutputStream
net.java.truevfs.comp.zip.ZipOutputStream$1EntryIterator
net.java.truevfs.comp.zip.ZipParametersException
net.java.truevfs.comp.zip.ZipParametersUtils
 None java.io
java.lang
java.nio
java.nio.channels
java.nio.charset
java.nio.file
java.security
java.util
java.util.concurrent.locks
java.util.zip
net.java.truecommons.io
net.java.truecommons.key.spec
net.java.truecommons.key.spec.common
net.java.truecommons.key.spec.util
net.java.truecommons.shed
net.java.truevfs.comp.zip.crypto
org.apache.commons.compress.compressors.bzip2
org.bouncycastle.crypto
org.bouncycastle.crypto.digests
org.bouncycastle.crypto.engines
org.bouncycastle.crypto.generators
org.bouncycastle.crypto.io
org.bouncycastle.crypto.macs
org.bouncycastle.crypto.params
org.bouncycastle.util.io

net.java.truevfs.comp.zip.crypto

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 8 33.0% 89.0% 22.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
net.java.truevfs.comp.zip.crypto.SeekableBlockCipher
net.java.truevfs.comp.zip.crypto.package-info
 net.java.truevfs.comp.zip.crypto.BufferedPartialBlockCipher
net.java.truevfs.comp.zip.crypto.CipherOutputStream
net.java.truevfs.comp.zip.crypto.CipherReadOnlyChannel
net.java.truevfs.comp.zip.crypto.CtrBlockCipher
 net.java.truevfs.comp.zip
 java.io
java.lang
java.nio
java.nio.channels
java.util
net.java.truecommons.io
org.bouncycastle.crypto
org.bouncycastle.crypto.params

Cycles

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

There are no cyclic dependencies.

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.