private Properties loadConfigProperties()

in main/src/main/java/org/apache/servicemix/kernel/main/Main.java [744:814]
50 lines of code
10 McCabe index (conditional complexity)

    private Properties loadConfigProperties() throws Exception {
        // The config properties file is either specified by a system
        // property or it is in the conf/ directory of the Felix
        // installation directory.  Try to load it from one of these
        // places.

            ArrayList<File> bundleDirs = new ArrayList<File>();

        // See if the property URL was specified as a property.
        URL configPropURL = null;
        URL startupPropURL = null;

        try {
            File file = new File(new File(servicemixBase, "etc"), CONFIG_PROPERTIES_FILE_NAME);
            configPropURL = file.toURL();

            file = new File(new File(servicemixBase, "etc"), STARTUP_PROPERTIES_FILE_NAME);
            startupPropURL = file.toURL();

            if (servicemixBase.equals(servicemixHome)) {
                bundleDirs.add(new File(servicemixHome, "system"));
            } else {
                bundleDirs.add(new File(servicemixBase, "system"));
                bundleDirs.add(new File(servicemixHome, "system"));
            }

        }
        catch (MalformedURLException ex) {
            System.err.print("Main: " + ex);
            return null;
        }


        Properties configProps = loadPropertiesFile(configPropURL);
        Properties startupProps = loadPropertiesFile(startupPropURL);

        String locations = configProps.getProperty(BUNDLE_LOCATIONS);

        if (locations != null) {
            StringTokenizer st = new StringTokenizer(locations, "\" ", true);
            if (st.countTokens() > 0) {
                String location = null;
                do {
                    location = nextLocation(st);
                    if (location != null) {
                        File f = new File(location);
                        if (f.exists() && f.isDirectory()) {
                            bundleDirs.add(f);
                        } else {
                            System.err.println("Bundle location " + location
                                    + " does not exist or is not a directory.");
                        }
                    }
                }

                while (location != null);
            }
        }

        // Perform variable substitution for system properties.
        for (Enumeration e = configProps.propertyNames(); e.hasMoreElements();) {
            String name = (String) e.nextElement();
            configProps.setProperty(name,
                    substVars(configProps.getProperty(name), name, null, configProps));
        }

        // Mutate properties
        Main.processConfigurationProperties(configProps, startupProps, bundleDirs);

        return configProps;
    }