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.wikimedia.eventutilities.core.event 16 14 2 0 20 12.0% 100.0% 12.0% 1
org.wikimedia.eventutilities.core.event.types 2 1 1 0 2 50.0% 100.0% 50.0% 1
org.wikimedia.eventutilities.core.http 4 4 0 1 17 0.0% 94.0% 6.0% 1
org.wikimedia.eventutilities.core.json 3 3 0 1 11 0.0% 92.0% 8.0% 1
org.wikimedia.eventutilities.core.util 1 1 0 1 2 0.0% 67.0% 33.0% 1

Packages

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

org.wikimedia.eventutilities.core.event

Afferent Couplings Efferent Couplings Abstractness Instability Distance
0 20 12.0% 100.0% 12.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.wikimedia.eventutilities.core.event.EventStreamConfigLoader
org.wikimedia.eventutilities.core.event.JsonEventGenerator$EventNormalizer
org.wikimedia.eventutilities.core.event.EventLoggingSchemaLoader
org.wikimedia.eventutilities.core.event.EventNormalizationStep$1
org.wikimedia.eventutilities.core.event.EventNormalizationStep$Validation
org.wikimedia.eventutilities.core.event.EventSchemaLoader$Builder
org.wikimedia.eventutilities.core.event.EventSchemaValidator
org.wikimedia.eventutilities.core.event.EventStream
org.wikimedia.eventutilities.core.event.EventUtilitiesConfig$EventUtilitiesConfigBuilder
org.wikimedia.eventutilities.core.event.EventUtilitiesFactory
org.wikimedia.eventutilities.core.event.JsonEventGenerator$1
org.wikimedia.eventutilities.core.event.JsonEventGenerator$SchemaStreamNamesPair
org.wikimedia.eventutilities.core.event.MediawikiEventStreamConfigLoader
org.wikimedia.eventutilities.core.event.StaticEventStreamConfigLoader
org.wikimedia.eventutilities.core.event.WikimediaDefaults
org.wikimedia.eventutilities.core.event.WikimediaExternalDefaults
None com.fasterxml.jackson.core
com.fasterxml.jackson.databind
com.fasterxml.jackson.databind.node
com.github.fge.jsonschema.core.exceptions
com.github.fge.jsonschema.core.report
com.github.fge.jsonschema.main
com.google.common.base
com.google.common.collect
java.io
java.lang
java.net
java.nio.charset
java.time
java.util
java.util.function
lombok
org.slf4j
org.wikimedia.eventutilities.core
org.wikimedia.eventutilities.core.http
org.wikimedia.eventutilities.core.json

org.wikimedia.eventutilities.core.event.types

Afferent Couplings Efferent Couplings Abstractness Instability Distance
0 2 50.0% 100.0% 50.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.wikimedia.eventutilities.core.event.types.SchemaConversions
org.wikimedia.eventutilities.core.event.types.SchemaConversions$RowField
None java.lang
java.util

org.wikimedia.eventutilities.core.http

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 17 0.0% 94.0% 6.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
None org.wikimedia.eventutilities.core.http.BasicHttpClient$1
org.wikimedia.eventutilities.core.http.BasicHttpClient$Builder
org.wikimedia.eventutilities.core.http.BasicHttpResult
org.wikimedia.eventutilities.core.http.JsonHttpEntity
org.wikimedia.eventutilities.core.event
com.fasterxml.jackson.core
com.fasterxml.jackson.databind
com.google.common.collect
java.io
java.lang
java.net
java.nio.charset
java.util
java.util.function
org.apache.http
org.apache.http.entity
org.apache.http.impl.client
org.apache.http.impl.conn
org.apache.http.message
org.apache.http.protocol
org.apache.http.util
org.wikimedia.utils.http

org.wikimedia.eventutilities.core.json

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 11 0.0% 92.0% 8.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
None org.wikimedia.eventutilities.core.json.JsonLoader
org.wikimedia.eventutilities.core.json.JsonLoadingException
org.wikimedia.eventutilities.core.json.JsonSchemaLoader
org.wikimedia.eventutilities.core.event
com.fasterxml.jackson.core
com.fasterxml.jackson.databind
com.fasterxml.jackson.dataformat.yaml
com.github.fge.jsonschema.core.load
com.github.fge.jsonschema.core.tree
java.io
java.lang
java.net
java.nio.charset
java.util.concurrent
org.wikimedia.eventutilities.core.util

org.wikimedia.eventutilities.core.util

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.wikimedia.eventutilities.core.util.ResourceLoadingException
org.wikimedia.eventutilities.core.json
java.lang
java.net

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.