    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 = Node.CATEGORY, 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         * Creates a Property.
    060         *
    061         * @param name The key.
    062         * @param value The value.
    063         * @return A Property.
    064         */
    065        @PluginFactory
    066        public static Property createProperty(
    067                @PluginAttribute("name") final String name,
    068                @PluginValue("value") final String value) {
    069            if (name == null) {
    070                LOGGER.error("Property name cannot be null");
    071            }
    072            return new Property(name, value);
    073        }
    074
    075        @Override
    076        public String toString() {
    077            return name + '=' + value;
    078        }
    079    }