protected WebappLoader createWebappLoader()

in tomcat7-maven-plugin/src/main/java/org/apache/tomcat/maven/plugin/tomcat7/run/RunMojo.java [265:336]
65 lines of code
12 McCabe index (conditional complexity)

    protected WebappLoader createWebappLoader()
        throws IOException, MojoExecutionException
    {
        WebappLoader loader = super.createWebappLoader();

        if ( useSeparateTomcatClassLoader )
        {
            loader.setDelegate( delegate );
        }

        try
        {
            ClassLoaderEntriesCalculatorRequest request =
                new ClassLoaderEntriesCalculatorRequest().setDependencies( dependencies ).setLog(
                    getLog() ).setMavenProject( project ).setAddWarDependenciesInClassloader(
                    addWarDependenciesInClassloader ).setUseTestClassPath( useTestClasspath );
            ClassLoaderEntriesCalculatorResult classLoaderEntriesCalculatorResult =
                classLoaderEntriesCalculator.calculateClassPathEntries( request );
            List<String> classLoaderEntries = classLoaderEntriesCalculatorResult.getClassPathEntries();
            final List<File> tmpDirectories = classLoaderEntriesCalculatorResult.getTmpDirectories();

            Runtime.getRuntime().addShutdownHook( new Thread()
            {
                @Override
                public void run()
                {
                    for ( File tmpDir : tmpDirectories )
                    {
                        try
                        {
                            FileUtils.deleteDirectory( tmpDir );
                        }
                        catch ( IOException e )
                        {
                            // ignore
                        }
                    }
                }
            } );

            if ( classLoaderEntries != null )
            {
                for ( String classLoaderEntry : classLoaderEntries )
                {
                    loader.addRepository( classLoaderEntry );
                }
            }

            if ( additionalClasspathDirs != null && !additionalClasspathDirs.isEmpty() )
            {
                for ( String additionalClasspathDir : additionalClasspathDirs )
                {
                    if ( StringUtils.isNotBlank( additionalClasspathDir ) )
                    {
                        File file = new File( additionalClasspathDir );
                        if ( file.exists() )
                        {
                            String fileUri = file.toURI().toString();
                            getLog().debug( "add file:" + fileUri + " as a additionalClasspathDir" );
                            loader.addRepository( fileUri );
                        }
                    }
                }
            }
        }
        catch ( TomcatRunException e )
        {
            throw new MojoExecutionException( e.getMessage(), e );
        }

        return loader;
    }