Find cyclomatic complexity

org.openrewrite.analysis.java.controlflow.search.FindCyclomaticComplexity

Calculates the cyclomatic complexity of methods and produces a data table containing the class name, method name, argument types, complexity value, and complexity threshold.

Recipe source

This recipe is only available to users of Moderne.

This recipe is available under the Moderne Proprietary License.

Options

Type	Name	Description	Example
Boolean	addMarker	Optional. Add a marker with the cyclomatic complexity value and threshold.

Usage

This recipe has no required configuration options. Users of Moderne can run it via the Moderne CLI:

Moderne CLI

You will need to have configured the Moderne CLI on your machine before you can run the following command.

shell

mod run . --recipe FindCyclomaticComplexity

If the recipe is not available locally, then you can install it using:

mod config recipes jar install io.moderne.recipe:rewrite-program-analysis:0.4.0

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Data Tables

ComplexityTable

Method cyclomatic complexity

org.openrewrite.analysis.java.controlflow.table.ComplexityTable

A table of methods and their cyclomatic complexity values.

Column Name	Description
Class name	The fully qualified class name
Method name	The method name
Argument types	The method argument types
Cyclomatic complexity	The calculated cyclomatic complexity value
Complexity threshold	The complexity category (Simple, Moderate, Complex, Very Complex)

SourcesFileResults

Source files that had results

org.openrewrite.table.SourcesFileResults

Source files that were modified by the recipe run.

Column Name	Description
Source path before the run	The source path of the file before the run. null when a source file was created during the run.
Source path after the run	A recipe may modify the source path. This is the path after the run. null when a source file was deleted during the run.
Parent of the recipe that made changes	In a hierarchical recipe, the parent of the recipe that made a change. Empty if this is the root of a hierarchy or if the recipe is not hierarchical at all.
Recipe that made changes	The specific recipe that made a change.
Estimated time saving	An estimated effort that a developer to fix manually instead of using this recipe, in unit of seconds.
Cycle	The recipe cycle in which the change was made.

SourcesFileErrors

Source files that errored on a recipe

org.openrewrite.table.SourcesFileErrors

The details of all errors produced by a recipe run.

Column Name	Description
Source path	The file that failed to parse.
Recipe that made changes	The specific recipe that made a change.
Stack trace	The stack trace of the failure.

RecipeRunStats

Recipe performance

org.openrewrite.table.RecipeRunStats

Statistics used in analyzing the performance of recipes.

Column Name	Description
The recipe	The recipe whose stats are being measured both individually and cumulatively.
Source file count	The number of source files the recipe ran over.
Source file changed count	The number of source files which were changed in the recipe run. Includes files created, deleted, and edited.
Cumulative scanning time (ns)	The total time spent across the scanning phase of this recipe.
99th percentile scanning time (ns)	99 out of 100 scans completed in this amount of time.
Max scanning time (ns)	The max time scanning any one source file.
Cumulative edit time (ns)	The total time spent across the editing phase of this recipe.
99th percentile edit time (ns)	99 out of 100 edits completed in this amount of time.
Max edit time (ns)	The max time editing any one source file.

Contributors

Jonathan Schneider