apache / incubator-pekko-projectionConditional Complexity

Intro

Conditional complexity (also called cyclomatic complexity) is a term used to measure the complexity of software. The term refers to the number of possible paths through a program function. A higher value ofter means higher maintenance and testing costs (infosecinstitute.com).
Conditional complexity is calculated by counting all conditions in the program that can affect the execution path (e.g. if statement, loops, switches, and/or operators, try and catch blocks...).
Conditional complexity is measured at the unit level (methods, functions...).
Units are classified in four categories based on the measured McCabe index: 1-5 (simple units), 6-10 (medium complex units), 11-25 (complex units), 26+ (very complex units).

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Conditional Complexity Overall

There are 345 units with 4,588 lines of code in units (46.4% of code).

0 very complex units (0 lines of code)
1 complex units (71 lines of code)
2 medium complex units (214 lines of code)
25 simple units (731 lines of code)
317 very simple units (3,572 lines of code)

Legend:

51+

26-50

11-25

6-10

1-5

Alternative Visuals

3D view of all units

Conditional Complexity per Extension

51+

26-50

11-25

6-10

1-5

Conditional Complexity per Logical Component

primary logical decomposition

51+

26-50

11-25

6-10

1-5

Most Complex Units

Top 50 most complex units

Unit	# lines	McCabe index	# params
private def started() in core/src/main/scala/org/apache/pekko/projection/ProjectionBehavior.scala	71	26	1
def applyRecovery() in core/src/main/scala/org/apache/pekko/projection/internal/HandlerRecoveryImpl.scala	107	19	5
private def exactlyOnceProcessing() in core/src/main/scala/org/apache/pekko/projection/internal/InternalProjectionState.scala	107	17	4
def mappedSource() in core/src/main/scala/org/apache/pekko/projection/internal/InternalProjectionState.scala	56	10	0
def toStorageRepresentation[Offset]() in core/src/main/scala/org/apache/pekko/projection/internal/OffsetSerialization.scala	28	9	3
def saveOffsetBlocking[Offset]() in jdbc/src/main/scala/org/apache/pekko/projection/jdbc/internal/JdbcOffsetStore.scala	43	9	3
private def atLeastOnceProcessing() in core/src/main/scala/org/apache/pekko/projection/internal/InternalProjectionState.scala	89	8	6
private def settingPaused() in core/src/main/scala/org/apache/pekko/projection/ProjectionBehavior.scala	25	8	2
def fromStorageRepresentation[Offset]() in core/src/main/scala/org/apache/pekko/projection/internal/OffsetSerialization.scala	14	7	2
override def manifest() in core/src/main/scala/org/apache/pekko/projection/internal/ProjectionSerializer.scala	9	7	1
override def toBinary() in core/src/main/scala/org/apache/pekko/projection/internal/ProjectionSerializer.scala	9	7	1
override def fromBinary() in core/src/main/scala/org/apache/pekko/projection/internal/ProjectionSerializer.scala	10	7	2
def retryAndFail() in core/src/main/scala/org/apache/pekko/projection/HandlerRecoveryStrategy.scala	18	7	2
private def settingOffset() in core/src/main/scala/org/apache/pekko/projection/ProjectionBehavior.scala	27	7	2
def savePaused() in jdbc/src/main/scala/org/apache/pekko/projection/jdbc/internal/JdbcOffsetStore.scala	49	7	2
def withSession[S S)() in jdbc/src/main/scala/org/apache/pekko/projection/jdbc/internal/JdbcSessionUtil.scala	25	7	1
private def transformDirectory() in project/Protobuf.scala	30	7	5
override def apply() in project/CopyrightHeader.scala	14	7	2
override def equals() in eventsourced/src/main/scala/org/apache/pekko/projection/eventsourced/EventEnvelope.scala	10	7	1
def fromConfig() in core/src/main/scala/org/apache/pekko/projection/internal/ProjectionSettings.scala	14	6	1
private def serialize() in core/src/main/scala/org/apache/pekko/projection/internal/InternalProjectionState.scala	27	6	3
def this() in slick/src/main/scala/org/apache/pekko/projection/slick/internal/SlickOffsetStore.scala	21	6	4
def exactlyOnce[Offset, Envelope, P <: JdbcProfile: ClassTag]() in slick/src/main/scala/org/apache/pekko/projection/slick/SlickProjection.scala	55	6	5
def groupedWithin[Offset, Envelope, P <: JdbcProfile: ClassTag]() in slick/src/main/scala/org/apache/pekko/projection/slick/SlickProjection.scala	55	6	5
def readOffset[Offset]() in jdbc/src/main/scala/org/apache/pekko/projection/jdbc/internal/JdbcOffsetStore.scala	31	6	1
private def checkDispatcherConfig() in jdbc/src/main/scala/org/apache/pekko/projection/jdbc/internal/JdbcSettings.scala	24	6	1
private def generate() in project/Protobuf.scala	27	6	5
private def getOffsetsOnAssign() in kafka/src/main/scala/org/apache/pekko/projection/kafka/internal/KafkaSourceProviderImpl.scala	21	6	2
private def stopHandlerOnTermination() in core/src/main/scala/org/apache/pekko/projection/internal/InternalProjectionState.scala	23	5	3
def start() in core/src/main/scala/org/apache/pekko/projection/internal/Telemetry.scala	17	5	2
def readOffset[Offset]() in slick/src/main/scala/org/apache/pekko/projection/slick/internal/SlickOffsetStore.scala	14	5	1
override def apply() in project/CopyrightHeader.scala	11	5	2
def partitionForUser() in kafka/src/it/scala/org/apache/pekko/projection/kafka/integration/KafkaToSlickIntegrationSpec.scala	8	5	1
override def process() in cassandra/src/it/scala/org/apache/pekko/projection/cassandra/CassandraProjectionSpec.scala	15	5	1
def sliceForPersistenceId() in eventsourced/src/main/scala/org/apache/pekko/projection/eventsourced/scaladsl/EventSourcedProvider.scala	47	5	3
def sliceForPersistenceId() in eventsourced/src/main/scala/org/apache/pekko/projection/eventsourced/javadsl/EventSourcedProvider.scala	60	5	3
def recreateHandlerOnNextAccess() in core/src/main/scala/org/apache/pekko/projection/internal/OffsetStrategy.scala	11	4	0
def fromStorageRepresentation[Offset, Inner]() in core/src/main/scala/org/apache/pekko/projection/internal/OffsetSerialization.scala	12	4	1
final override def process() in core/src/main/scala/org/apache/pekko/projection/scaladsl/StatefulHandler.scala	14	4	1
override def withRecoveryStrategy() in slick/src/main/scala/org/apache/pekko/projection/slick/internal/SlickProjectionImpl.scala	10	4	1
override def source() in testkit/src/main/scala/org/apache/pekko/projection/testkit/internal/TestSourceProviderImpl.scala	10	4	1
def readManagementState() in jdbc/src/main/scala/org/apache/pekko/projection/jdbc/internal/JdbcOffsetStore.scala	23	4	1
override def withRestartBackoffSettings() in jdbc/src/main/scala/org/apache/pekko/projection/jdbc/internal/JdbcProjectionImpl.scala	23	4	1
def concatToText() in cassandra/src/it/scala/org/apache/pekko/projection/cassandra/CassandraProjectionSpec.scala	9	4	2
override def extractOffset() in durable-state/src/main/scala/org/apache/pekko/projection/state/scaladsl/DurableStateSourceProvider.scala	6	3	1
def sliceForPersistenceId() in durable-state/src/main/scala/org/apache/pekko/projection/state/scaladsl/DurableStateSourceProvider.scala	41	3	3
override def extractOffset() in durable-state/src/main/scala/org/apache/pekko/projection/state/javadsl/DurableStateSourceProvider.scala	6	3	1
def sliceForPersistenceId() in durable-state/src/main/scala/org/apache/pekko/projection/state/javadsl/DurableStateSourceProvider.scala	43	3	3
override def equals() in core/src/main/scala/org/apache/pekko/projection/ProjectionId.scala	4	3	1
def apply[Envelope]() in core/src/main/scala/org/apache/pekko/projection/internal/HandlerAdapter.scala	6	3	1