public void execute()

in nbm-maven-plugin/src/main/java/org/apache/netbeans/nbm/CreateNbmMojo.java [191:373]
175 lines of code
34 McCabe index (conditional complexity)

    public void execute()
            throws MojoExecutionException, MojoFailureException
    {
        if ( skipNbm )
        {
            getLog().info( "Skipping generation of NBM file." );
            return;
        }

        if ( "pom".equals( project.getPackaging() ) )
        {
            getLog().info(
                    "Skipping " + project.getId() + ", no nbm:nbm execution for 'pom' packaging" );
            return;
        }
        super.execute();

        // 3. generate nbm
        File nbmFile = new File( nbmBuildDir, finalName + ".nbm" );
        MakeNBM nbmTask = (MakeNBM) antProject.createTask( "makenbm" );
        nbmTask.setFile( nbmFile );
        nbmTask.setProductDir( clusterDir );

        nbmTask.setModule( "modules" + File.separator + moduleJarName + ".jar" );
        boolean reqRestart = requiresRestart;
        if ( !reqRestart && module.isRequiresRestart() )
        {
            reqRestart = module.isRequiresRestart();
            getLog().warn(
                    "Module descriptor's requiresRestart field is deprecated, use plugin's configuration in pom.xml" );
        }
        nbmTask.setNeedsrestart( Boolean.toString( reqRestart ) );
        String moduleAuthor = author;
        if ( module.getAuthor() != null )
        {
            moduleAuthor = module.getAuthor();
            getLog().warn(
                    "Module descriptor's requiresRestart field is deprecated, use plugin's configuration in pom.xml" );
        }
        nbmTask.setModuleauthor( moduleAuthor );
        if ( keystore != null && keystorealias != null && keystorepassword != null )
        {
            File ks = new File( keystore );
            if ( !ks.exists() )
            {
                getLog().warn( "Cannot find keystore file at " + ks.getAbsolutePath() );
            }
            else
            {
                Signature sig = nbmTask.createSignature();
                sig.setKeystore( ks );
                sig.setAlias( keystorealias );
                sig.setStorepass( keystorepassword );
                if ( tsaurl != null ) 
                {
                    sig.setTsaurl( tsaurl );
                }
                if ( tsacert != null ) 
                {
                    sig.setTsacert( tsacert );
                }
                getLog().debug( "Setup the Ant task to sign the NBM file." );
            }
        }
        else if ( keystore != null || keystorepassword != null || keystorealias != null )
        {
            getLog().warn(
                    "If you want to sign the nbm file, you need to define all three keystore related parameters." );
        }
        String licName = licenseName;
        File licFile = licenseFile;
        if ( module.getLicenseName() != null )
        {
            licName = module.getLicenseName();
            getLog().warn(
                    "Module descriptor's licenseName field is deprecated, use plugin's configuration in pom.xml" );
        }
        if ( module.getLicenseFile() != null )
        {
            File lf = new File( project.getBasedir(), module.getLicenseFile() );
            licFile = lf;
            getLog().warn(
                    "Module descriptor's licenseFile field is deprecated, use plugin's configuration in pom.xml" );

        }
        if ( licName != null && licFile != null )
        {
            if ( !licFile.exists() || !licFile.isFile() )
            {
                getLog().warn( "Cannot find license file at " + licFile.getAbsolutePath() );
            }
            else
            {
                Blurb lb = nbmTask.createLicense();
                lb.setFile( licFile );
                lb.addText( licName );
            }
        }
        else if ( licName != null || licFile != null )
        {
            getLog().warn(
                    "To set license for the nbm, you need to specify both licenseName and licenseFile parameters." );
        }
        else
        {
            Blurb lb = nbmTask.createLicense();
            lb.addText( createDefaultLicenseHeader() );
            lb.addText( createDefaultLicenseText() );
        }
        String hpUrl = homePageUrl;
        if ( module.getHomepageUrl() != null )
        {
            getLog().warn(
                    "Module descriptor's homePageUrl field is deprecated, use plugin's configuration in pom.xml" );
            hpUrl = module.getHomepageUrl();
        }
        if ( hpUrl != null )
        {
            nbmTask.setHomepage( hpUrl );
        }
        String distribUrl = distributionUrl;
        if ( module.getDistributionUrl() != null )
        {
            distribUrl = module.getDistributionUrl();
            getLog().warn(
                    "Module descriptor's distributionUrl field is deprecated, use plugin's configuration in pom.xml" );
        }
        if ( distribUrl != null )
        {
            ArtifactRepository distRepository = CreateUpdateSiteMojo.getDeploymentRepository(
                    distribUrl, container, getLog() );
            String dist = null;
            if ( distRepository == null )
            {
                if ( !distribUrl.contains( "::" ) )
                {
                    dist
                            = distribUrl + ( distribUrl.endsWith( "/" ) ? "" : "/" )
                            + nbmFile.getName();
                }
            }
            else
            {
                Artifact art = artifactFactory.createArtifact(
                        project.getGroupId(), project.getArtifactId(),
                        project.getVersion(), null, "nbm-file" );

                dist
                        = distRepository.getUrl() + ( distRepository.getUrl().endsWith( "/" ) ? "" : "/" )
                        + distRepository.pathOf( art );

            }
            nbmTask.setDistribution( dist );
        }
        else
        {
            nbmTask.setDistribution( nbmFile.getName() );
        }
        if ( !"extra".equals( cluster ) )
        {
            nbmTask.setTargetcluster( cluster );
        }
        //MNBMODULE-217 avoid using the static DATE_FORMAT variable in MavenNBM.java (in ant harness)
        nbmTask.setReleasedate( DATE_FORMAT.format( new Date( System.currentTimeMillis() ) ) );
        try
        {
            nbmTask.execute();
        }
        catch ( BuildException e )
        {
            throw new MojoExecutionException( "Cannot Generate nbm file:" + e.getMessage(), e );
        }
        try
        {
            File nbmfile = new File( buildDir, nbmFile.getName() );
            FileUtils.getFileUtils().copyFile( nbmFile, nbmfile );
            projectHelper.attachArtifact( project, "nbm-file", null, nbmfile );
        }
        catch ( IOException ex )
        {
            throw new MojoExecutionException( "Cannot copy nbm to build directory", ex );
        }
    }