awslabs / dynamodb-streams-kinesis-adapter
Conditional Complexity

The distribution of complexity of units (measured with McCabe index).

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).
Learn more...
Conditional Complexity Overall
  • There are 276 units with 2,270 lines of code in units (71.9% of code).
    • 0 very complex units (0 lines of code)
    • 0 complex units (0 lines of code)
    • 3 medium complex units (144 lines of code)
    • 14 simple units (439 lines of code)
    • 259 very simple units (1,687 lines of code)
0% | 0% | 6% | 19% | 74%
Legend:
51+
26-50
11-25
6-10
1-5
Alternative Visuals
Conditional Complexity per Extension
51+
26-50
11-25
6-10
1-5
java0% | 0% | 6% | 19% | 74%
Conditional Complexity per Logical Component
primary logical decomposition
51+
26-50
11-25
6-10
1-5
streamsadapter0% | 0% | 10% | 17% | 71%
streamsadapter/leases0% | 0% | 0% | 42% | 57%
streamsadapter/model0% | 0% | 0% | 9% | 90%
streamsadapter/exceptions0% | 0% | 0% | 0% | 100%
Most Complex Units
Top 20 most complex units
Unit# linesMcCabe index# params
boolean checkIfDescendantAndAddNewLeasesForAncestors()
in src/main/java/com/amazonaws/services/dynamodbv2/streamsadapter/DynamoDBStreamsShardSyncer.java
 64 15 6
public synchronized List getShardList()
in src/main/java/com/amazonaws/services/dynamodbv2/streamsadapter/DynamoDBStreamsProxy.java
 42 11 0
synchronized void cleanupLeaseForClosedShard()
in src/main/java/com/amazonaws/services/dynamodbv2/streamsadapter/DynamoDBStreamsShardSyncer.java
 38 11 4
private List getLeasesToSteal()
in src/main/java/com/amazonaws/services/dynamodbv2/streamsadapter/leases/StreamsLeaseTaker.java
 43 10 4
private synchronized void assertHashRangeOfClosedShardIsCovered()
in src/main/java/com/amazonaws/services/dynamodbv2/streamsadapter/DynamoDBStreamsShardSyncer.java
 27 10 3
private void updateAllLeases()
in src/main/java/com/amazonaws/services/dynamodbv2/streamsadapter/leases/StreamsLeaseTaker.java
 40 9 1
public GetRecordsResult getRecords()
in src/main/java/com/amazonaws/services/dynamodbv2/streamsadapter/AmazonDynamoDBStreamsAdapterClient.java
 25 9 1
public static AmazonServiceException transformDynamoDBStreamsToKinesisGetRecords()
in src/main/java/com/amazonaws/services/dynamodbv2/streamsadapter/model/AmazonServiceExceptionTransformer.java
 26 9 2
public DescribeStreamResult getStreamInfo()
in src/main/java/com/amazonaws/services/dynamodbv2/streamsadapter/DynamoDBStreamsProxy.java
 36 8 1
public GetShardIteratorResult getShardIterator()
in src/main/java/com/amazonaws/services/dynamodbv2/streamsadapter/AmazonDynamoDBStreamsAdapterClient.java
 25 8 1
public static AmazonServiceException transformDynamoDBStreamsToKinesisGetShardIterator()
in src/main/java/com/amazonaws/services/dynamodbv2/streamsadapter/model/AmazonServiceExceptionTransformer.java
 26 8 2
private void cleanupGarbageLeases()
in src/main/java/com/amazonaws/services/dynamodbv2/streamsadapter/DynamoDBStreamsShardSyncer.java
 35 8 4
private synchronized void cleanupLeasesOfFinishedShards()
in src/main/java/com/amazonaws/services/dynamodbv2/streamsadapter/DynamoDBStreamsShardSyncer.java
 33 8 5
private Map takeLeases()
in src/main/java/com/amazonaws/services/dynamodbv2/streamsadapter/leases/StreamsLeaseTaker.java
 37 7 1
private List getLeasesToEvict()
in src/main/java/com/amazonaws/services/dynamodbv2/streamsadapter/leases/StreamsLeaseTaker.java
 17 7 1
private void addToClosedLeafNodes()
in src/main/java/com/amazonaws/services/dynamodbv2/streamsadapter/DynamoDBStreamsProxy.java
 20 7 1
List determineNewLeasesToCreate()
in src/main/java/com/amazonaws/services/dynamodbv2/streamsadapter/DynamoDBStreamsShardSyncer.java
 49 7 4
private ShardGraphProcessingResult resolveInconsistenciesInShardGraph()
in src/main/java/com/amazonaws/services/dynamodbv2/streamsadapter/DynamoDBStreamsProxy.java
 27 5 0
private void markLeafShardsAsActive()
in src/main/java/com/amazonaws/services/dynamodbv2/streamsadapter/AmazonDynamoDBStreamsAdapterClient.java
 13 5 1
private static AmazonServiceException applyFields()
in src/main/java/com/amazonaws/services/dynamodbv2/streamsadapter/model/AmazonServiceExceptionTransformer.java
 19 5 2