public void process()

in compat/maven-embedder/src/main/java/org/apache/maven/cli/configuration/SettingsXmlConfigurationProcessor.java [86:192]
88 lines of code
16 McCabe index (conditional complexity)

    public void process(CliRequest cliRequest) throws Exception {
        CommandLine commandLine = cliRequest.getCommandLine();
        String workingDirectory = cliRequest.getWorkingDirectory();
        MavenExecutionRequest request = cliRequest.getRequest();

        File userSettingsFile;

        if (commandLine.hasOption(CLIManager.ALTERNATE_USER_SETTINGS)) {
            userSettingsFile = new File(commandLine.getOptionValue(CLIManager.ALTERNATE_USER_SETTINGS));
            userSettingsFile = resolveFile(userSettingsFile, workingDirectory);

            if (!userSettingsFile.isFile()) {
                throw new FileNotFoundException("The specified user settings file does not exist: " + userSettingsFile);
            }
        } else {
            userSettingsFile = DEFAULT_USER_SETTINGS_FILE;
        }

        File projectSettingsFile;

        if (commandLine.hasOption(CLIManager.ALTERNATE_PROJECT_SETTINGS)) {
            projectSettingsFile = new File(commandLine.getOptionValue(CLIManager.ALTERNATE_PROJECT_SETTINGS));
            projectSettingsFile = resolveFile(projectSettingsFile, workingDirectory);

            if (!projectSettingsFile.isFile()) {
                throw new FileNotFoundException(
                        "The specified project settings file does not exist: " + projectSettingsFile);
            }
        } else if (cliRequest.getRootDirectory() != null) {
            projectSettingsFile = DEFAULT_PROJECT_SETTINGS_FILE;
            projectSettingsFile = resolveFile(
                    projectSettingsFile, cliRequest.getRootDirectory().toString());
        } else {
            projectSettingsFile = null;
        }

        File installationSettingsFile;

        if (commandLine.hasOption(CLIManager.ALTERNATE_INSTALLATION_SETTINGS)) {
            installationSettingsFile = new File(commandLine.getOptionValue(CLIManager.ALTERNATE_INSTALLATION_SETTINGS));
            installationSettingsFile = resolveFile(installationSettingsFile, workingDirectory);

            if (!installationSettingsFile.isFile()) {
                throw new FileNotFoundException(
                        "The specified installation settings file does not exist: " + installationSettingsFile);
            }
        } else if (commandLine.hasOption(CLIManager.ALTERNATE_GLOBAL_SETTINGS)) {
            installationSettingsFile = new File(commandLine.getOptionValue(CLIManager.ALTERNATE_GLOBAL_SETTINGS));
            installationSettingsFile = resolveFile(installationSettingsFile, workingDirectory);

            if (!installationSettingsFile.isFile()) {
                throw new FileNotFoundException(
                        "The specified installation settings file does not exist: " + installationSettingsFile);
            }
        } else {
            installationSettingsFile = DEFAULT_INSTALLATION_SETTINGS_FILE;
        }

        request.setInstallationSettingsFile(installationSettingsFile);
        request.setProjectSettingsFile(projectSettingsFile);
        request.setUserSettingsFile(userSettingsFile);

        SettingsBuildingRequest settingsRequest = new DefaultSettingsBuildingRequest();
        settingsRequest.setGlobalSettingsFile(installationSettingsFile);
        settingsRequest.setProjectSettingsFile(projectSettingsFile);
        settingsRequest.setUserSettingsFile(userSettingsFile);
        settingsRequest.setSystemProperties(cliRequest.getSystemProperties());
        Properties props = cliRequest.getUserProperties();
        if (cliRequest.getRootDirectory() != null) {
            props = new Properties();
            props.putAll(cliRequest.getUserProperties());
            props.put("session.rootDirectory", cliRequest.getRootDirectory().toString());
        }
        settingsRequest.setUserProperties(props);

        if (request.getEventSpyDispatcher() != null) {
            request.getEventSpyDispatcher().onEvent(settingsRequest);
        }

        LOGGER.debug(
                "Reading installation settings from '{}'",
                getLocation(settingsRequest.getGlobalSettingsSource(), settingsRequest.getGlobalSettingsFile()));
        LOGGER.debug(
                "Reading project settings from '{}'",
                getLocation(settingsRequest.getProjectSettingsSource(), settingsRequest.getProjectSettingsFile()));
        LOGGER.debug(
                "Reading user settings from '{}'",
                getLocation(settingsRequest.getUserSettingsSource(), settingsRequest.getUserSettingsFile()));

        SettingsBuildingResult settingsResult = settingsBuilder.build(settingsRequest);

        if (request.getEventSpyDispatcher() != null) {
            request.getEventSpyDispatcher().onEvent(settingsResult);
        }

        populateFromSettings(request, settingsResult.getEffectiveSettings());

        if (!settingsResult.getProblems().isEmpty() && LOGGER.isWarnEnabled()) {
            LOGGER.warn("");
            LOGGER.warn("Some problems were encountered while building the effective settings");

            for (SettingsProblem problem : settingsResult.getProblems()) {
                LOGGER.warn("{} @ {}", problem.getMessage(), problem.getLocation());
            }
            LOGGER.warn("");
        }
    }