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.config; 018 019 import org.apache.logging.log4j.Logger; 020 import org.apache.logging.log4j.core.config.plugins.Plugin; 021 import org.apache.logging.log4j.core.config.plugins.PluginAttribute; 022 import org.apache.logging.log4j.core.config.plugins.PluginFactory; 023 import org.apache.logging.log4j.core.config.plugins.PluginValue; 024 import org.apache.logging.log4j.status.StatusLogger; 025 026 /** 027 * Represents a key/value pair in the configuration. 028 */ 029 @Plugin(name = "property", category = "Core", printObject = true) 030 public final class Property { 031 032 private static final Logger LOGGER = StatusLogger.getLogger(); 033 034 private final String name; 035 private final String value; 036 037 private Property(final String name, final String value) { 038 this.name = name; 039 this.value = value; 040 } 041 042 /** 043 * Returns the property name. 044 * @return the property name. 045 */ 046 public String getName() { 047 return name; 048 } 049 050 /** 051 * Returns the property value. 052 * @return the value of the property. 053 */ 054 public String getValue() { 055 return value; 056 } 057 058 /** 059 * Create a Property. 060 * @param key The key. 061 * @param value The value. 062 * @return A Property. 063 */ 064 @PluginFactory 065 public static Property createProperty( 066 @PluginAttribute("name") final String key, 067 @PluginValue("value") final String value) { 068 if (key == null) { 069 LOGGER.error("Property key cannot be null"); 070 } 071 return new Property(key, value); 072 } 073 074 @Override 075 public String toString() { 076 return name + '=' + value; 077 } 078 }