JavaNCSS Metric Results

[ package ] [ object ] [ method ] [ explanation ]

The following document contains the results of a JavaNCSS metric analysis, using JavaNCSS version 32.53.
JavaNCSS web site.

Packages

[ package ] [ object ] [ method ] [ explanation ]

Packages sorted by NCSS.

PackageClassesMethodsNCSSJavadocsJavadoc linesSingle lines commentMulti lines comment
org.slasoi.gslam.commons.plan.graph10662587669814387
org.slasoi.gslam.commons.plan5311473626010191
Classes totalMethods totalNCSS totalJavadocsJavadoc linesSingle lines commentMulti lines comment
159740511295824578

Objects

[ package ] [ object ] [ method ] [ explanation ]

TOP 30 classes containing the most NCSS.

ObjectNCSSMethodsClassesJavadocs
org.slasoi.gslam.commons.plan.graph.DirectedAcyclicGraph11722023
org.slasoi.gslam.commons.plan.Plan7212013
org.slasoi.gslam.commons.plan.Task4416017
org.slasoi.gslam.commons.plan.graph.VertexDirectedEdgesCollection4010011
org.slasoi.gslam.commons.plan.graph.AbstractGraph17405
org.slasoi.gslam.commons.plan.graph.Graph1615016
org.slasoi.gslam.commons.plan.graph.Edge15506
org.slasoi.gslam.commons.plan.graph.DirectedGraph7607
org.slasoi.gslam.commons.plan.graph.EdgeFoundException5102
org.slasoi.gslam.commons.plan.graph.EdgeNotFoundException5102
org.slasoi.gslam.commons.plan.graph.VertexFoundException5102
org.slasoi.gslam.commons.plan.graph.VertexNotFoundException5102
org.slasoi.gslam.commons.plan.RootFoundException5102
org.slasoi.gslam.commons.plan.TaskFoundException5102
org.slasoi.gslam.commons.plan.TaskNotFoundException5102

TOP 30 classes containing the most methods.

ObjectNCSSMethodsClassesJavadocs
org.slasoi.gslam.commons.plan.graph.DirectedAcyclicGraph11722023
org.slasoi.gslam.commons.plan.Task4416017
org.slasoi.gslam.commons.plan.graph.Graph1615016
org.slasoi.gslam.commons.plan.Plan7212013
org.slasoi.gslam.commons.plan.graph.VertexDirectedEdgesCollection4010011
org.slasoi.gslam.commons.plan.graph.DirectedGraph7607
org.slasoi.gslam.commons.plan.graph.Edge15506
org.slasoi.gslam.commons.plan.graph.AbstractGraph17405
org.slasoi.gslam.commons.plan.graph.EdgeFoundException5102
org.slasoi.gslam.commons.plan.graph.EdgeNotFoundException5102
org.slasoi.gslam.commons.plan.graph.VertexFoundException5102
org.slasoi.gslam.commons.plan.graph.VertexNotFoundException5102
org.slasoi.gslam.commons.plan.RootFoundException5102
org.slasoi.gslam.commons.plan.TaskFoundException5102
org.slasoi.gslam.commons.plan.TaskNotFoundException5102

Averages.

NCSS averageProgram NCSSClasses averageMethods averageJavadocs average
24.20405.000.006.477.47

Methods

[ package ] [ object ] [ method ] [ explanation ]

TOP 30 Methods containing the most NCSS.

MethodsNCSSCCNJavadocs
org.slasoi.gslam.commons.plan.Plan.getNumberNodes()1851
org.slasoi.gslam.commons.plan.graph.DirectedAcyclicGraph.getEdges(V,V)1161
org.slasoi.gslam.commons.plan.Plan.addChildren(Task,Task)1051
org.slasoi.gslam.commons.plan.graph.DirectedAcyclicGraph.addEdge(V)951
org.slasoi.gslam.commons.plan.graph.DirectedAcyclicGraph.getEdge(V,V)961
org.slasoi.gslam.commons.plan.graph.VertexDirectedEdgesCollection.toString()931
org.slasoi.gslam.commons.plan.graph.DirectedAcyclicGraph.containsEdge(V)821
org.slasoi.gslam.commons.plan.graph.DirectedAcyclicGraph.getPredecessors(V)721
org.slasoi.gslam.commons.plan.graph.DirectedAcyclicGraph.getSuccessors(V)721
org.slasoi.gslam.commons.plan.graph.DirectedAcyclicGraph.removeEdge(V,V)731
org.slasoi.gslam.commons.plan.graph.VertexDirectedEdgesCollection.containsEdge(E,E)731
org.slasoi.gslam.commons.plan.Plan.setRoot(Task)751
org.slasoi.gslam.commons.plan.graph.DirectedAcyclicGraph.toString()621
org.slasoi.gslam.commons.plan.Task.Task(String,String,String,String)611
org.slasoi.gslam.commons.plan.graph.AbstractGraph.removeEdges(E)531
org.slasoi.gslam.commons.plan.graph.AbstractGraph.removeVertices(V)531
org.slasoi.gslam.commons.plan.graph.DirectedAcyclicGraph.addVertex(V)531
org.slasoi.gslam.commons.plan.graph.DirectedAcyclicGraph.removeEdge(V)511
org.slasoi.gslam.commons.plan.Plan.addNode(Task)541
org.slasoi.gslam.commons.plan.Plan.toString()511
org.slasoi.gslam.commons.plan.graph.AbstractGraph.removeEdges(V,V)411
org.slasoi.gslam.commons.plan.graph.DirectedAcyclicGraph.getInDegree(V)431
org.slasoi.gslam.commons.plan.graph.DirectedAcyclicGraph.getIncomingEdges(V)431
org.slasoi.gslam.commons.plan.graph.DirectedAcyclicGraph.getOutDegree(V)431
org.slasoi.gslam.commons.plan.graph.DirectedAcyclicGraph.getOutgoingEdges(V)431
org.slasoi.gslam.commons.plan.graph.DirectedAcyclicGraph.addEdge(V,V)411
org.slasoi.gslam.commons.plan.graph.DirectedAcyclicGraph.getEdgeCollection(V)431
org.slasoi.gslam.commons.plan.graph.DirectedAcyclicGraph.getEdges(V)411
org.slasoi.gslam.commons.plan.graph.DirectedAcyclicGraph.removeVertex(V)411
org.slasoi.gslam.commons.plan.graph.VertexDirectedEdgesCollection.removeIncomingEdge(E)431

Averages.

Program NCSSNCSS averageCCN averageJavadocs average
405.003.271.711.00

Explanations

[ package ] [ object ] [ method ] [ explanation ]

Non Commenting Source Statements (NCSS)

Statements for JavaNCSS are not statements as specified in the Java Language Specification but include all kinds of declarations too. Roughly spoken, NCSS is approximately equivalent to counting ';' and '{' characters in Java source files.

Not counted are empty statements, empty blocks or semicolons after closing brackets. Of course, comments don't get counted too. Closing brackets also never get counted, the same applies to blocks in general.

Examples
Package declarationpackage java.lang;
Import declarationimport java.awt.*;
Class declaration
  • public class Foo {
  • public class Foo extends Bla {
Interface declarationpublic interface Able ; {
Field declaration
  • int a;
  • int a, b, c = 5, d = 6;
Method declaration
  • public void cry();
  • public void gib() throws DeadException {
Constructor declarationpublic Foo() {
Constructor invocation
  • this();
  • super();
Statement declaration
  • i = 0;
  • if (ok)
  • if (exit) {
  • if (3 == 4);
  • if (4 == 4) { ;
  • } else {
Label declarationfine :

In some cases consecutive semicolons are illegal according to the JLS but JavaNCSS still tolerates them (thought JavaNCSS is still more strict as 'javac'). Nevertheless they are never counted as two statements.

Cyclomatic Complexity Number (CCN)

CCN is also know as McCabe Metric. There exists a much hyped theory behind it based on graph theory, but it all comes down to simply counting 'if', 'for', 'while' statements etc. in a method. Whenever the control flow of a method splits, the "CCN counter" gets incremented by one.

Each method has a minimum value of 1 per default. For each of the following Java keywords/statements this value gets incremented by one:

  • if
  • for
  • while
  • case
  • catch

Also if the control flow of a method returns abortively the CCNvalue will be incremented by one:

  • if
  • for

An ordinary return at the end of method will not be counted.

Note that 'else', 'default', and 'finally' don't increment the CCN value any further. On the other hand, a simple method with a 'switch' statement and a huge block of 'case' statements can have a surprisingly high CCN value (still it has the same value when converting a 'switch' block to an equivalent sequence of 'if' statements).