001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache license, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the license for the specific language governing permissions and
015 * limitations under the license.
016 */
017package org.apache.logging.log4j.core.net;
018
019import org.apache.logging.log4j.Level;
020
021/**
022 * The Priority used in the Syslog system. Calculated from the Facility and Severity values.
023 */
024public class Priority {
025
026    private final Facility facility;
027    private final Severity severity;
028
029    /**
030     * The Constructor.
031     * @param facility The Facility.
032     * @param severity The Severity.
033     */
034    public Priority(final Facility facility, final Severity severity) {
035        this.facility = facility;
036        this.severity = severity;
037    }
038
039    /**
040     * Returns the priority value based on the Facility and Log Level.
041     * @param facility The Facility.
042     * @param level The Level.
043     * @return The integer value of the priority.
044     */
045    public static int getPriority(final Facility facility, final Level level) {
046        return (facility.getCode() << 3) + Severity.getSeverity(level).getCode();
047    }
048
049    /**
050     * Returns the Facility.
051     * @return the Facility.
052     */
053    public Facility getFacility() {
054        return facility;
055    }
056
057    /**
058     * Returns the Severity.
059     * @return the Severity.
060     */
061    public Severity getSeverity() {
062        return severity;
063    }
064
065    /**
066     * Returns the value of this Priority.
067     * @return the value of this Priority.
068     */
069    public int getValue() {
070        return facility.getCode() << 3 + severity.getCode();
071    }
072
073    @Override
074    public String toString() {
075        return Integer.toString(getValue());
076    }
077}