public static synchronized Handler getDefaultHandler()

in plugins/org.apache.karaf.eik.app/src/main/java/org/apache/karaf/main/BootstrapLogManager.java [45:90]

39 lines of code
8 McCabe index (conditional complexity)


    public static synchronized Handler getDefaultHandler () {
        if (handler != null) {
            return handler;
        }
        String filename;
        File log;
        Properties props = new Properties();
        filename = configProps.getProperty(KARAF_BOOTSTRAP_LOG);

        if (filename != null) {
            log = new File(filename);
        } else {
            // Make a best effort to log to the default file appender configured for log4j
            FileInputStream fis = null;
            try {
                fis = new FileInputStream(System.getProperty("karaf.base") + "../etc/org.ops4j.pax.logging.cfg");
                props.load(fis);
            } catch (IOException e) {
                props.setProperty("log4j.appender.out.file", "${karaf.data}/log/karaf.log");
            } finally {
                if (fis != null) {
                    try {
                        fis.close();
                    } catch (IOException ioe) {
                        ioe.printStackTrace();
                    }
                }
            }

            if (props.getProperty("log4j.appender.out.file") == null) {
                // manage if the log4j.appender.out.file property is not present in
                // the etc/org.ops4j.pax.logging.cfg file
                props.setProperty("log4j.appender.out.file", "${karaf.data}/log/karaf.log");
            }
            filename = PropertyUtils.substVars(props.getProperty("log4j.appender.out.file"),"log4j.appender.out.file", null, null);
            log = new File(filename);
        }

        try {
            handler = new BootstrapLogManager.SimpleFileHandler(log);
        } catch (IOException e) {
            e.printStackTrace();
        }

        return handler;
    }