    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.flume.appender;
    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.util.Integers;
    024    import org.apache.logging.log4j.status.StatusLogger;
    025
    026    /**
    027     * Agent Specification for FlumeAvroAppender.
    028     */
    029    @Plugin(name = "Agent", category = "Core", printObject = true)
    030    public final class Agent {
    031
    032        private static final String DEFAULT_HOST = "localhost";
    033
    034        private static final int DEFAULT_PORT = 35853;
    035
    036        private static final Logger LOGGER = StatusLogger.getLogger();
    037
    038        private final String host;
    039
    040        private final int port;
    041
    042        private Agent(final String host, final int port) {
    043            this.host = host;
    044            this.port = port;
    045        }
    046
    047        /**
    048         * Retrieve the host name.
    049         * @return The name of the host.
    050         */
    051        public String getHost() {
    052            return host;
    053        }
    054
    055        /**
    056         * Retrieve the port number.
    057         * @return The port number.
    058         */
    059        public int getPort() {
    060            return port;
    061        }
    062
    063        @Override
    064        public String toString() {
    065            return "host=" + host + " port=" + port;
    066        }
    067
    068        /**
    069         * Create an Agent.
    070         * @param host The host name.
    071         * @param port The port number.
    072         * @return The Agent.
    073         */
    074        @PluginFactory
    075        public static Agent createAgent(@PluginAttribute("host") String host,
    076                @PluginAttribute("port") final String port) {
    077            if (host == null) {
    078                host = DEFAULT_HOST;
    079            }
    080
    081            int portNum;
    082            try {
    083                portNum = Integers.parseInt(port, DEFAULT_PORT);
    084            } catch (final Exception ex) {
    085                LOGGER.error("Error parsing port number " + port, ex);
    086                return null;
    087            }
    088            return new Agent(host, portNum);
    089        }
    090    }