protected abstract void invokeManager()

in tomcat8-maven-plugin/src/main/java/org/apache/tomcat/maven/plugin/tomcat8/AbstractCatalinaMojo.java [160:225]
46 lines of code
8 McCabe index (conditional complexity)

    protected abstract void invokeManager()
        throws MojoExecutionException, TomcatManagerException, IOException;

    /**
     * Gets the Tomcat manager wrapper object configured for this goal.
     *
     * @return the Tomcat manager wrapper object
     * @throws org.apache.maven.plugin.MojoExecutionException
     *          if there was a problem obtaining the authentication details
     */
    protected TomcatManager getManager()
        throws MojoExecutionException
    {
        // lazily instantiate when config values have been injected
        if ( manager == null )
        {
            String userName;
            String password;

            if ( server == null )
            {
                // no server set, use defaults
                getLog().debug( messagesProvider.getMessage( "AbstractCatalinaMojo.defaultAuth" ) );
                userName = DEFAULT_USERNAME;
                password = DEFAULT_PASSWORD;
            }
            else
            {
                // obtain authenication details for specified server from wagon
                AuthenticationInfo info = wagonManager.getAuthenticationInfo( server );
                if ( info == null )
                {
                    throw new MojoExecutionException(
                        messagesProvider.getMessage( "AbstractCatalinaMojo.unknownServer", server ) );
                }

                // derive username
                userName = info.getUserName();
                if ( userName == null )
                {
                    getLog().debug( messagesProvider.getMessage( "AbstractCatalinaMojo.defaultUserName" ) );
                    userName = DEFAULT_USERNAME;
                }

                // derive password
                password = info.getPassword();
                if ( password == null )
                {
                    getLog().debug( messagesProvider.getMessage( "AbstractCatalinaMojo.defaultPassword" ) );
                    password = DEFAULT_PASSWORD;
                }
            }

            // if userName/password are defined in the mojo or the cli they override
            if ( !StringUtils.isEmpty( this.username ) )
            {
                userName = this.username;
                password = this.password == null ? "" : this.password;
            }

            manager = new TomcatManager( url, userName, password, charset, settings.isInteractiveMode() );
            manager.setUserAgent( name + "/" + version );
        }

        return manager;
    }