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     */
017    package org.apache.logging.log4j.core.net;
018    
019    import org.apache.logging.log4j.Level;
020    
021    /**
022     * The Priority used in the Syslog system. Calculated from the Facility and Severity values.
023     */
024    public 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(Facility facility, 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(Facility facility, 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    }