private static final Properties getConfigurationFile()

in src/main/java/org/apache/commons/logging/LogFactory.java [1358:1432]
66 lines of code
15 McCabe index (conditional complexity)

    private static final Properties getConfigurationFile(final ClassLoader classLoader, final String fileName) {
        Properties props = null;
        double priority = 0.0;
        URL propsUrl = null;
        try {
            final Enumeration urls = getResources(classLoader, fileName);

            if (urls == null) {
                return null;
            }

            while (urls.hasMoreElements()) {
                final URL url = (URL) urls.nextElement();

                final Properties newProps = getProperties(url);
                if (newProps != null) {
                    if (props == null) {
                        propsUrl = url;
                        props = newProps;
                        final String priorityStr = props.getProperty(PRIORITY_KEY);
                        priority = 0.0;
                        if (priorityStr != null) {
                            priority = Double.parseDouble(priorityStr);
                        }

                        if (isDiagnosticsEnabled()) {
                            logDiagnostic("[LOOKUP] Properties file found at '" + url + "'" +
                                          " with priority " + priority);
                        }
                    } else {
                        final String newPriorityStr = newProps.getProperty(PRIORITY_KEY);
                        double newPriority = 0.0;
                        if (newPriorityStr != null) {
                            newPriority = Double.parseDouble(newPriorityStr);
                        }

                        if (newPriority > priority) {
                            if (isDiagnosticsEnabled()) {
                                logDiagnostic("[LOOKUP] Properties file at '" + url + "'" +
                                              " with priority " + newPriority +
                                              " overrides file at '" + propsUrl + "'" +
                                              " with priority " + priority);
                            }

                            propsUrl = url;
                            props = newProps;
                            priority = newPriority;
                        } else {
                            if (isDiagnosticsEnabled()) {
                                logDiagnostic("[LOOKUP] Properties file at '" + url + "'" +
                                              " with priority " + newPriority +
                                              " does not override file at '" + propsUrl + "'" +
                                              " with priority " + priority);
                            }
                        }
                    }

                }
            }
        } catch (final SecurityException e) {
            if (isDiagnosticsEnabled()) {
                logDiagnostic("SecurityException thrown while trying to find/read config files.");
            }
        }

        if (isDiagnosticsEnabled()) {
            if (props == null) {
                logDiagnostic("[LOOKUP] No properties file of name '" + fileName + "' found.");
            } else {
                logDiagnostic("[LOOKUP] Properties file of name '" + fileName + "' found at '" + propsUrl + '"');
            }
        }

        return props;
    }