/*-
 * ============LICENSE_START=======================================================
 * ONAP - SO
 * ================================================================================
 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
 * ================================================================================
 * Modifications Copyright (c) 2019 Samsung
 * ================================================================================
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ============LICENSE_END=========================================================
 */

package org.oran.otf.common.utility.logger;

import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.LoggerContext;
import ch.qos.logback.classic.spi.LoggerContextListener;
import ch.qos.logback.core.Context;
import ch.qos.logback.core.spi.ContextAwareBase;
import ch.qos.logback.core.spi.LifeCycle;
import java.net.InetAddress;
import java.net.UnknownHostException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

@Component
public class LoggerStartupListener extends ContextAwareBase
    implements LoggerContextListener, LifeCycle {

  private static final Logger logger = LoggerFactory.getLogger(LoggerStartupListener.class);
  private boolean started = false;

  @Override
  public void start() {
    if (started) {
      return;
    }
    InetAddress addr = null;
    try {
      addr = InetAddress.getLocalHost();
    } catch (UnknownHostException e) {
      logger.error("UnknownHostException", e);
    }
    Context context = getContext();
    if (addr != null) {
      context.putProperty("server.name", addr.getHostName());
    }
    started = true;
  }

  @Override
  public void stop() {
  }

  @Override
  public boolean isStarted() {
    return started;
  }

  @Override
  public boolean isResetResistant() {
    return true;
  }

  @Override
  public void onReset(LoggerContext arg0) {
  }

  @Override
  public void onStart(LoggerContext arg0) {
  }

  @Override
  public void onStop(LoggerContext arg0) {
  }

  @Override
  public void onLevelChange(ch.qos.logback.classic.Logger logger, Level level) {
  }
}