Example usage for java.util.logging StreamHandler setLevel

Introduction

In this page you can find the example usage for java.util.logging StreamHandler setLevel.

Prototype

public synchronized void setLevel(Level newLevel) throws SecurityException 

Source Link

Document

Set the log level specifying which message levels will be logged by this Handler .

Usage

From source file:cn.org.once.cstack.cli.processor.LoggerPostProcessor.java

public Object postProcessBeforeInitialization(final Object bean, String beanName) throws BeansException {
    ReflectionUtils.doWithFields(bean.getClass(), new ReflectionUtils.FieldCallback() {

        public void doWith(Field field) throws IllegalArgumentException, IllegalAccessException {

            if (field.getAnnotation(InjectLogger.class) != null && field.getType().equals(Logger.class)) {
                ReflectionUtils.makeAccessible(field);
                Logger logger = Logger.getLogger(bean.getClass().getName());

                field.set(bean, logger);

                StreamHandler fileHandler;
                try {

                    FileOutputStream fileOutputStream = new FileOutputStream(new File("errors.log"), true);
                    fileHandler = new StreamHandler(fileOutputStream, new SimpleFormatter());
                    fileHandler.setLevel(Level.SEVERE);
                    logger.addHandler(fileHandler);

                } catch (SecurityException | IOException e) {
                    throw new IllegalArgumentException(e);
                }/*from w  ww .  j a v a 2s  . c  o  m*/

            }
        }
    });

    return bean;
}

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