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.common.messaging.pubsub.xmpp52937600590
org.slasoi.common.messaging7212070013
org.slasoi.common.messaging.pubsub12552052312040
org.slasoi.common.messaging.pubsub.inmemory6261420020
org.slasoi.common.messaging.pubsub.amqp3191111410
org.slasoi.common.messaging.pubsub.jms214990010
org.slasoi.common.messaging.pointtopoint620780000
org.slasoi.common.messaging.pointtopoint.xmpp26430010
Classes totalMethods totalNCSS totalJavadocsJavadoc linesSingle lines commentMulti lines comment
43190126124124693

Objects

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

TOP 30 classes containing the most NCSS.

ObjectNCSSMethodsClassesJavadocs
org.slasoi.common.messaging.pubsub.xmpp.PubSubManager2531820
org.slasoi.common.messaging.Settings156900
org.slasoi.common.messaging.pubsub.inmemory.PubSubManager1251440
org.slasoi.common.messaging.pubsub.PubSubManager10524518
org.slasoi.common.messaging.pubsub.jms.PubSubManager871310
org.slasoi.common.messaging.pubsub.amqp.PubSubManager661201
org.slasoi.common.messaging.pubsub.xmpp.CredentialValidator37400
org.slasoi.common.messaging.pointtopoint.xmpp.Messaging30510
org.slasoi.common.messaging.pubsub.xmpp.ConnectHandler29400
org.slasoi.common.messaging.pubsub.PubSubFactory24400
org.slasoi.common.messaging.pubsub.PubSubManager.Listener24400
org.slasoi.common.messaging.pubsub.inmemory.PubSubManager.Subscription20700
org.slasoi.common.messaging.pointtopoint.Messaging19800
org.slasoi.common.messaging.pubsub.PubSubMessage18600
org.slasoi.common.messaging.pubsub.xmpp.PubSubManager.SelfPacketFilter18200
org.slasoi.common.messaging.pointtopoint.Message17600
org.slasoi.common.messaging.pubsub.amqp.ConsumerCallback17600
org.slasoi.common.messaging.pointtopoint.MessagingFactory15300
org.slasoi.common.messaging.Message11400
org.slasoi.common.messaging.pubsub.Channel11405
org.slasoi.common.messaging.pubsub.inmemory.PubSubManager.FiberFactory11310
org.slasoi.common.messaging.MessagingException10400
org.slasoi.common.messaging.pubsub.Subscription10300
org.slasoi.common.messaging.pointtopoint.MessageEvent8200
org.slasoi.common.messaging.pointtopoint.xmpp.Messaging.PacketListener8100
org.slasoi.common.messaging.pubsub.MessageEvent8200
org.slasoi.common.messaging.pubsub.PubSubManager.XStreamEncode8300
org.slasoi.common.messaging.pubsub.xmpp.PubSubManager.PacketListener8100
org.slasoi.common.messaging.pubsub.jms.PubSubManager.javax.jms.MessageListener7100
org.slasoi.common.messaging.pubsub.inmemory.PubSubManager.DenySentFromSelfFilter6100

TOP 30 classes containing the most methods.

ObjectNCSSMethodsClassesJavadocs
org.slasoi.common.messaging.pubsub.PubSubManager10524518
org.slasoi.common.messaging.pubsub.xmpp.PubSubManager2531820
org.slasoi.common.messaging.pubsub.inmemory.PubSubManager1251440
org.slasoi.common.messaging.pubsub.jms.PubSubManager871310
org.slasoi.common.messaging.pubsub.amqp.PubSubManager661201
org.slasoi.common.messaging.Settings156900
org.slasoi.common.messaging.pointtopoint.Messaging19800
org.slasoi.common.messaging.pubsub.inmemory.PubSubManager.Subscription20700
org.slasoi.common.messaging.pointtopoint.Message17600
org.slasoi.common.messaging.pubsub.amqp.ConsumerCallback17600
org.slasoi.common.messaging.pubsub.PubSubMessage18600
org.slasoi.common.messaging.pointtopoint.xmpp.Messaging30510
org.slasoi.common.messaging.Message11400
org.slasoi.common.messaging.MessagingException10400
org.slasoi.common.messaging.pubsub.Channel11405
org.slasoi.common.messaging.pubsub.PubSubFactory24400
org.slasoi.common.messaging.pubsub.PubSubManager.Listener24400
org.slasoi.common.messaging.pubsub.xmpp.ConnectHandler29400
org.slasoi.common.messaging.pubsub.xmpp.CredentialValidator37400
org.slasoi.common.messaging.pointtopoint.MessagingFactory15300
org.slasoi.common.messaging.pubsub.inmemory.PubSubManager.FiberFactory11310
org.slasoi.common.messaging.pubsub.PubSubManager.XStreamEncode8300
org.slasoi.common.messaging.pubsub.Subscription10300
org.slasoi.common.messaging.MessageEvent5200
org.slasoi.common.messaging.MessagingActivator5200
org.slasoi.common.messaging.pointtopoint.MessageEvent8200
org.slasoi.common.messaging.pubsub.MessageEvent8200
org.slasoi.common.messaging.pubsub.PubSubManager.Base64Encode5200
org.slasoi.common.messaging.pubsub.PubSubManager.Encode3200
org.slasoi.common.messaging.pubsub.xmpp.PubSubManager.SelfPacketFilter18200

Averages.

NCSS averageProgram NCSSClasses averageMethods averageJavadocs average
27.911,261.000.334.420.56

Methods

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

TOP 30 Methods containing the most NCSS.

MethodsNCSSCCNJavadocs
org.slasoi.common.messaging.Settings.setSetting(Setting,String)62210
org.slasoi.common.messaging.Settings.getSetting(Setting)53470
org.slasoi.common.messaging.pubsub.xmpp.PubSubManager.configure(ProviderManager)4630
org.slasoi.common.messaging.pubsub.xmpp.PubSubManager.getSubscriptions()2470
org.slasoi.common.messaging.pubsub.xmpp.PubSubManager.createChannel(Channel)2160
org.slasoi.common.messaging.pubsub.xmpp.CredentialValidator.checkCredentials(String,String)2030
org.slasoi.common.messaging.pointtopoint.xmpp.Messaging.Messaging(Settings)1850
org.slasoi.common.messaging.pubsub.xmpp.PubSubManager.getSubid(String)1860
org.slasoi.common.messaging.pubsub.xmpp.PubSubManager.extractMessage(XMPPElement)1750
org.slasoi.common.messaging.pubsub.PubSubFactory.createPubSubManager(Settings)16110
org.slasoi.common.messaging.pubsub.PubSubManager.setupEncode()1550
org.slasoi.common.messaging.pubsub.inmemory.PubSubManager.unsubscribe(String)1440
org.slasoi.common.messaging.pubsub.xmpp.PubSubManager.deleteChannel(String)1450
org.slasoi.common.messaging.pubsub.xmpp.PubSubManager.unsubscribe(String)1450
org.slasoi.common.messaging.pubsub.amqp.PubSubManager.connect()1330
org.slasoi.common.messaging.pubsub.jms.PubSubManager.unsubscribe(String)1380
org.slasoi.common.messaging.pubsub.xmpp.PubSubManager.isChannel(String)1360
org.slasoi.common.messaging.pubsub.xmpp.PubSubManager.subscribe(String)1350
org.slasoi.common.messaging.pubsub.inmemory.PubSubManager.subscribe(String)1130
org.slasoi.common.messaging.pubsub.jms.PubSubManager.addListener(TopicSubscriber)1130
org.slasoi.common.messaging.pointtopoint.MessagingFactory.createMessaging(Settings)1050
org.slasoi.common.messaging.pubsub.jms.PubSubManager.setUp()1040
org.slasoi.common.messaging.pubsub.jms.PubSubManager.close()1050
org.slasoi.common.messaging.pubsub.PubSubManager.Listener.fireMessageEvent(MessageEvent)1040
org.slasoi.common.messaging.pubsub.xmpp.ConnectHandler.login()1030
org.slasoi.common.messaging.pubsub.xmpp.PubSubManager.addListener()1010
org.slasoi.common.messaging.Settings.flushSettings(String)1040
org.slasoi.common.messaging.pubsub.jms.PubSubManager.publish(PubSubMessage)930
org.slasoi.common.messaging.pubsub.xmpp.PubSubManager.publish(PubSubMessage)910
org.slasoi.common.messaging.pubsub.xmpp.PubSubManager.SelfPacketFilter.accept(Packet)950

Averages.

Program NCSSNCSS averageCCN averageJavadocs average
1,261.005.192.190.12

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).