com.cloudbees.syslog.integration.jul.util.LogManagerHelper Maven / Gradle / Ivy

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/**
 * Copyright 2010-2016 OrientDB LTD (http://orientdb.com)
 *
 * 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.
 *
 * For more information: http://www.orientdb.com
 */
package com.cloudbees.syslog.integration.jul.util;

import java.util.logging.Filter;
import java.util.logging.Formatter;
import java.util.logging.Level;
import java.util.logging.LogManager;

/**
 * @author Cyrille Le Clerc
 */
public class LogManagerHelper {

    /**
     * Visible version of {@link java.util.logging.LogManager#getLevelProperty(String, java.util.logging.Level)}.
     *
     * If the property is not defined or cannot be parsed we return the given default value.
     */
    public static Level getLevelProperty(LogManager manager, String name, Level defaultValue) {

        String val = manager.getProperty(name);
        if (val == null) {
            return defaultValue;
        }
        Level l = LevelHelper.findLevel(val.trim());
        return l != null ? l : defaultValue;
    }


    /**
     * Visible version of {@link java.util.logging.LogManager#getFilterProperty(String, java.util.logging.Filter)}.
     *
     * We return an instance of the class named by the "name" property.
     *
     * If the property is not defined or has problems we return the defaultValue.
     */
    public static Filter getFilterProperty(LogManager manager, String name, Filter defaultValue) {
        String val = manager.getProperty(name);
        try {
            if (val != null) {
                Class clz = ClassLoader.getSystemClassLoader().loadClass(val);
                return (Filter) clz.newInstance();
            }
        } catch (Exception ex) {
            // We got one of a variety of exceptions in creating the
            // class or creating an instance.
            // Drop through.
        }
        // We got an exception.  Return the defaultValue.
        return defaultValue;
    }


    /**
     * Visible version of {@link java.util.logging.LogManager#getFormatterProperty(String, java.util.logging.Formatter)} .
     *
     * We return an instance of the class named by the "name" property.
     *
     * If the property is not defined or has problems we return the defaultValue.
     */
    public static Formatter getFormatterProperty(LogManager manager, String name, Formatter defaultValue) {
        String val = manager.getProperty(name);
        try {
            if (val != null) {
                Class clz = ClassLoader.getSystemClassLoader().loadClass(val);
                return (Formatter) clz.newInstance();
            }
        } catch (Exception ex) {
            // We got one of a variety of exceptions in creating the
            // class or creating an instance.
            // Drop through.
        }
        // We got an exception.  Return the defaultValue.
        return defaultValue;
    }


    /**
     * Visible version of {@link java.util.logging.LogManager#getStringProperty(String, String)}.
     *
     * If the property is not defined we return the given default value.
     */
    public static String getStringProperty(LogManager manager, String name, String defaultValue) {
        String val = manager.getProperty(name);
        if (val == null) {
            return defaultValue;
        }
        return val.trim();
    }


    /**
     * Visible version of {@link java.util.logging.LogManager#getIntProperty(String, int)}.
     *
     * Method to get an integer property.
     *
     * If the property is not defined or cannot be parsed we return the given default value.
     */
    public static int getIntProperty(LogManager manager, String name, int defaultValue) {
        String val = manager.getProperty(name);
        if (val == null) {
            return defaultValue;
        }
        try {
            return Integer.parseInt(val.trim());
        } catch (Exception ex) {
            return defaultValue;
        }
    }


    /**
     * Visible version of {@link java.util.logging.LogManager#getIntProperty(String, int)}.
     *
     * Method to get a boolean property.
     *
     * If the property is not defined or cannot be parsed we return the given default value.
     */
    public static boolean getBooleanProperty(LogManager manager, String name, boolean defaultValue) {
        String val = manager.getProperty(name);
        if (val == null) {
            return defaultValue;
        }
        val = val.toLowerCase();
        if (val.equals("true") || val.equals("1")) {
            return true;
        } else if (val.equals("false") || val.equals("0")) {
            return false;
        }
        return defaultValue;
    }


}