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.openphacts.nextprot317264428177
org.openphacts.nextprot.util213581144417
Classes totalMethods totalNCSS totalJavadocsJavadoc linesSingle lines commentMulti lines comment
53032215722124

Objects

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

TOP 30 classes containing the most NCSS.

ObjectNCSSMethodsClassesJavadocs
org.openphacts.nextprot.TemplateAssembler2241502
org.openphacts.nextprot.util.EchoTool441109
org.openphacts.nextprot.util.HashTool7202
org.openphacts.nextprot.App3101
org.openphacts.nextprot.TemplateException3101

TOP 30 classes containing the most methods.

ObjectNCSSMethodsClassesJavadocs
org.openphacts.nextprot.TemplateAssembler2241502
org.openphacts.nextprot.util.EchoTool441109
org.openphacts.nextprot.util.HashTool7202
org.openphacts.nextprot.App3101
org.openphacts.nextprot.TemplateException3101

Averages.

NCSS averageProgram NCSSClasses averageMethods averageJavadocs average
56.20322.000.006.003.00

Methods

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

TOP 30 Methods containing the most NCSS.

MethodsNCSSCCNJavadocs
org.openphacts.nextprot.TemplateAssembler.parse(String[])35100
org.openphacts.nextprot.TemplateAssembler.insertVelosurf(File,String,Context)26100
org.openphacts.nextprot.TemplateAssembler.createVelocityProperties(File,Map)2350
org.openphacts.nextprot.TemplateAssembler.processTemplates(File,File,Map)1771
org.openphacts.nextprot.TemplateAssembler.createWriter(File,File)1660
org.openphacts.nextprot.TemplateAssembler.getToolManager()1550
org.openphacts.nextprot.TemplateAssembler.getVelocityEngine(Properties)1440
org.openphacts.nextprot.TemplateAssembler.insertTemplateContent(File,Context)1340
org.openphacts.nextprot.TemplateAssembler.extractVelocityProperties(Map)1350
org.openphacts.nextprot.TemplateAssembler.createVelocityContext(File,Map)1130
org.openphacts.nextprot.TemplateAssembler.main(String[])1120
org.openphacts.nextprot.util.EchoTool.convertNumber(Object)730
org.openphacts.nextprot.TemplateAssembler.error(String,int)620
org.openphacts.nextprot.TemplateAssembler.logo()610
org.openphacts.nextprot.util.EchoTool.EchoTool()511
org.openphacts.nextprot.util.EchoTool.printHashMark()530
org.openphacts.nextprot.util.EchoTool.advance(Object)521
org.openphacts.nextprot.util.EchoTool.setColumns(Object)421
org.openphacts.nextprot.util.HashTool.adler(Object)411
org.openphacts.nextprot.util.EchoTool.println(Object)321
org.openphacts.nextprot.util.EchoTool.advance()311
org.openphacts.nextprot.TemplateAssembler.processTemplates(File)211
org.openphacts.nextprot.App.main(String[])210
org.openphacts.nextprot.TemplateException.TemplateException(String)210
org.openphacts.nextprot.util.EchoTool.startProgress()211
org.openphacts.nextprot.util.EchoTool.getMark()211
org.openphacts.nextprot.util.EchoTool.setMark(Object)211
org.openphacts.nextprot.util.EchoTool.getColumns()211
org.openphacts.nextprot.util.HashTool.HashTool()211
org.openphacts.nextprot.TemplateAssembler.TemplateAssembler()110

Averages.

Program NCSSNCSS averageCCN averageJavadocs average
322.008.632.930.43

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).