private void addContextFromArtifact()

in tomcat8-maven-plugin/src/main/java/org/apache/tomcat/maven/plugin/tomcat8/run/AbstractRunMojo.java [1517:1570]
46 lines of code
7 McCabe index (conditional complexity)

    private void addContextFromArtifact( Tomcat container, List<Context> contexts, Artifact artifact,
                                         String contextPath, File contextXml, boolean asWebApp )
        throws MojoExecutionException, ServletException, IOException
    {
        getLog().info( "Deploy warfile: " + String.valueOf( artifact.getFile() ) + " to contextPath: " + contextPath );
        File webapps = new File( configurationDir, "webapps" );
        File artifactWarDir = new File( webapps, artifact.getArtifactId() );
        if ( !artifactWarDir.exists() )
        {
            //dont extract if exists
            artifactWarDir.mkdir();
            try
            {
                UnArchiver unArchiver = archiverManager.getUnArchiver( "zip" );
                unArchiver.setSourceFile( artifact.getFile() );
                unArchiver.setDestDirectory( artifactWarDir );

                // Extract the module
                unArchiver.extract();
            }
            catch ( NoSuchArchiverException e )
            {
                getLog().error( e );
                return;
            }
            catch ( ArchiverException e )
            {
                getLog().error( e );
                return;
            }
        }
        // TODO make that configurable ?
        //WebappLoader webappLoader = new WebappLoader( Thread.currentThread().getContextClassLoader() );
        WebappLoader webappLoader = createWebappLoader();
        Context context = null;
        if ( asWebApp )
        {
            context = container.addWebapp( contextPath, artifactWarDir.getAbsolutePath() );
        }
        else
        {
            context = container.addContext( contextPath, artifactWarDir.getAbsolutePath() );
        }
        context.setLoader( webappLoader );

        File contextFile = contextXml != null ? contextXml : getContextFile();
        if ( contextFile != null )
        {
            context.setConfigFile( contextFile.toURI().toURL() );
        }

        contexts.add( context );
//        container.getHost().addChild(context);
    }