JavaNCSS Metric Results

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

The following document contains the results of a JavaNCSS metric analysis.
JavaNCSS web site.

Packages

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

Packages sorted by NCSS.

PackageClassesMethodsNCSSJavadocsJavadoc linesSingle lines commentMulti lines comment
org.fosstrak.hal.impl.feig513712924331617022
org.fosstrak.hal.impl.feig.comm4163411921193106
org.fosstrak.hal.impl.feig.util28320040
Classes totalMethods totalNCSS totalJavadocsJavadoc linesSingle lines commentMulti lines comment
11161166562527267128

Methods

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

TOP 30 Methods containing the most NCSS.

MethodsNCSSCCNJavadocs
org.fosstrak.hal.impl.feig.comm.ISOProtocol.serialEvent(SerialPortEvent)67331
org.fosstrak.hal.impl.feig.FeigTCPIPController.getInventory()54131
org.fosstrak.hal.impl.feig.FeigCOMController.getInventory()51131
org.fosstrak.hal.impl.feig.FeigCOMController.identify(String[])50101
org.fosstrak.hal.impl.feig.comm.TCPIPProtocol.getResponse()46231
org.fosstrak.hal.impl.feig.FeigTCPIPController.writeBytes(String,String,int,int,UnsignedByteArray,String[])45171
org.fosstrak.hal.impl.feig.FeigCOMController.writeBytes(String,String,int,int,UnsignedByteArray,String[])40181
org.fosstrak.hal.impl.feig.FeigTCPIPController.identify(String[])4071
org.fosstrak.hal.impl.feig.FeigTCPIPController.readMemoryBlocks(byte[],int,int,int,byte[])3970
org.fosstrak.hal.impl.feig.FeigTCPIPController.writeMemoryBlocks(byte[],int,int,byte[],byte[])3970
org.fosstrak.hal.impl.feig.FeigCOMController.writeMemoryBlocks(String,int,int,byte[])36110
org.fosstrak.hal.impl.feig.FeigTCPIPController.initialize()36101
org.fosstrak.hal.impl.feig.FeigTCPIPController.readBytes(String,String,int,int,int,String[])34121
org.fosstrak.hal.impl.feig.FeigTCPIPController.selectAntennaConnector(int)33101
org.fosstrak.hal.impl.feig.FeigCOMController.readMemoryBlocks(String,int,int)3290
org.fosstrak.hal.impl.feig.FeigCOMController.destroyIcodeUID(String,String)3180
org.fosstrak.hal.impl.feig.FeigMultiplexConfiguration.initialize()31131
org.fosstrak.hal.impl.feig.FeigTCPIPController.killEPC(String,String)3180
org.fosstrak.hal.impl.feig.comm.ISOProtocol.sendFrame(byte[])29110
org.fosstrak.hal.impl.feig.FeigCOMController.initReader(int,String,String)29101
org.fosstrak.hal.impl.feig.FeigCOMController.killTagIt(String,String)2860
org.fosstrak.hal.impl.feig.FeigCOMController.selectChannel(int,int)2871
org.fosstrak.hal.impl.feig.FeigCOMController.populateSystemInformation(Vector)2770
org.fosstrak.hal.impl.feig.comm.TCPIPProtocol.composeReaderSendFrame(RequestRecord)2661
org.fosstrak.hal.impl.feig.FeigCOMController.kill(String,String,String[])26130
org.fosstrak.hal.impl.feig.FeigCOMController.initialize()2571
org.fosstrak.hal.impl.feig.comm.ISOProtocol.composeReaderSendFrame(RequestRecord)2461
org.fosstrak.hal.impl.feig.FeigCOMController.readBytes(String,String,int,int,int,String[])2391
org.fosstrak.hal.impl.feig.FeigTCPIPController.kill(String,String,String[])22120
org.fosstrak.hal.impl.feig.comm.ISOProtocol.openPort(String,int,int,int,int)2181

Averages.

Program NCSSNCSS averageCCN averageJavadocs average
1,665.009.243.500.35

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).