private String findUserSpecifiedLogClassName()

in src/main/java/org/apache/commons/logging/impl/LogFactoryImpl.java [903:955]
45 lines of code
13 McCabe index (conditional complexity)

    private String findUserSpecifiedLogClassName() {
        if (isDiagnosticsEnabled()) {
            logDiagnostic("Trying to get log class from attribute '" + LOG_PROPERTY + "'");
        }
        String specifiedClass = (String) getAttribute(LOG_PROPERTY);

        if (specifiedClass == null) { // @deprecated
            if (isDiagnosticsEnabled()) {
                logDiagnostic("Trying to get log class from attribute '" +
                              LOG_PROPERTY_OLD + "'");
            }
            specifiedClass = (String) getAttribute(LOG_PROPERTY_OLD);
        }

        if (specifiedClass == null) {
            if (isDiagnosticsEnabled()) {
                logDiagnostic("Trying to get log class from system property '" +
                          LOG_PROPERTY + "'");
            }
            try {
                specifiedClass = getSystemProperty(LOG_PROPERTY, null);
            } catch (final SecurityException e) {
                if (isDiagnosticsEnabled()) {
                    logDiagnostic("No access allowed to system property '" +
                        LOG_PROPERTY + "' - " + e.getMessage());
                }
            }
        }

        if (specifiedClass == null) { // @deprecated
            if (isDiagnosticsEnabled()) {
                logDiagnostic("Trying to get log class from system property '" +
                          LOG_PROPERTY_OLD + "'");
            }
            try {
                specifiedClass = getSystemProperty(LOG_PROPERTY_OLD, null);
            } catch (final SecurityException e) {
                if (isDiagnosticsEnabled()) {
                    logDiagnostic("No access allowed to system property '" +
                        LOG_PROPERTY_OLD + "' - " + e.getMessage());
                }
            }
        }

        // Remove any whitespace; it's never valid in a classname so its
        // presence just means a user mistake. As we know what they meant,
        // we may as well strip the spaces.
        if (specifiedClass != null) {
            specifiedClass = specifiedClass.trim();
        }

        return specifiedClass;
    }