pub.vrtech.common.logs.jdk.JdkLoggerAdapter.java Source code

Introduction

Here is the source code for pub.vrtech.common.logs.jdk.JdkLoggerAdapter.java

Source

/*
 * Copyright 2016  VRTECH.
 *  
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *  
 *      http://www.apache.org/licenses/LICENSE-2.0
 *  
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package pub.vrtech.common.logs.jdk;

import java.io.File;
import java.io.InputStream;
import java.lang.reflect.Field;
import java.util.logging.FileHandler;
import java.util.logging.Handler;
import java.util.logging.LogManager;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;

import pub.vrtech.common.logs.Level;
import pub.vrtech.common.logs.Logger;
import pub.vrtech.common.logs.LoggerAdapter;

/**
 *
 * Function description 1.XXX 2.XXX
 * 
 * @author houge
 */
public class JdkLoggerAdapter implements LoggerAdapter {

    private static final String GLOBAL_LOGGER_NAME = "global";

    private String beanName;

    private ApplicationContext ctx;

    private File file;

    public JdkLoggerAdapter() {
        try {
            InputStream in = Thread.currentThread().getContextClassLoader()
                    .getResourceAsStream("logging.properties");
            if (in != null) {
                LogManager.getLogManager().readConfiguration(in);
            } else {
                System.err.println("No such logging.properties in classpath for jdk logging config!");
            }
        } catch (Throwable t) {
            System.err.println("Failed to load logging.properties in classpath for jdk logging config, cause: "
                    + t.getMessage());
        }
        try {
            Handler[] handlers = java.util.logging.Logger.getLogger(GLOBAL_LOGGER_NAME).getHandlers();
            for (Handler handler : handlers) {
                if (handler instanceof FileHandler) {
                    FileHandler fileHandler = (FileHandler) handler;
                    Field field = fileHandler.getClass().getField("files");
                    File[] files = (File[]) field.get(fileHandler);
                    if (files != null && files.length > 0) {
                        file = files[0];
                    }
                }
            }
        } catch (Throwable t) {
        }
    }

    public Logger getLogger(Class<?> key) {
        return new JdkLogger(java.util.logging.Logger.getLogger(key == null ? "" : key.getName()));
    }

    public Logger getLogger(String key) {
        return new JdkLogger(java.util.logging.Logger.getLogger(key));
    }

    public void setLevel(Level level) {
        java.util.logging.Logger.getLogger(GLOBAL_LOGGER_NAME).setLevel(toJdkLevel(level));
    }

    public Level getLevel() {
        return fromJdkLevel(java.util.logging.Logger.getLogger(GLOBAL_LOGGER_NAME).getLevel());
    }

    public File getFile() {
        return file;
    }

    private static java.util.logging.Level toJdkLevel(Level level) {
        if (level == Level.ALL)
            return java.util.logging.Level.ALL;
        if (level == Level.TRACE)
            return java.util.logging.Level.FINER;
        if (level == Level.DEBUG)
            return java.util.logging.Level.FINE;
        if (level == Level.INFO)
            return java.util.logging.Level.INFO;
        if (level == Level.WARN)
            return java.util.logging.Level.WARNING;
        if (level == Level.ERROR)
            return java.util.logging.Level.SEVERE;
        // if (level == Level.OFF)
        return java.util.logging.Level.OFF;
    }

    private static Level fromJdkLevel(java.util.logging.Level level) {
        if (level == java.util.logging.Level.ALL)
            return Level.ALL;
        if (level == java.util.logging.Level.FINER)
            return Level.TRACE;
        if (level == java.util.logging.Level.FINE)
            return Level.DEBUG;
        if (level == java.util.logging.Level.INFO)
            return Level.INFO;
        if (level == java.util.logging.Level.WARNING)
            return Level.WARN;
        if (level == java.util.logging.Level.SEVERE)
            return Level.ERROR;
        // if (level == java.util.logging.Level.OFF)
        return Level.OFF;
    }

    public void setFile(File file) {

    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * org.springframework.context.ApplicationContextAware#setApplicationContext
     * (org.springframework.context.ApplicationContext)
     */
    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        this.ctx = applicationContext;

    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * org.springframework.beans.factory.InitializingBean#afterPropertiesSet()
     */
    @Override
    public void afterPropertiesSet() throws Exception {
        // TODO Auto-generated method stub

    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * org.springframework.beans.factory.BeanNameAware#setBeanName(java.lang
     * .String)
     */
    @Override
    public void setBeanName(String arg0) {
        this.beanName = arg0;
    }

}