PrintOnlyWarningLogbackStatusListener.java

/*
 * This file is part of Waarp Project (named also Waarp or GG).
 *
 *  Copyright (c) 2019, Waarp SAS, and individual contributors by the @author
 *  tags. See the COPYRIGHT.txt in the distribution for a full listing of
 * individual contributors.
 *
 *  All Waarp Project is free software: you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or (at your
 * option) any later version.
 *
 * Waarp is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along with
 * Waarp . If not, see <http://www.gnu.org/licenses/>.
 */

package org.waarp.common.logging;

import ch.qos.logback.core.status.OnConsoleStatusListener;
import ch.qos.logback.core.status.Status;

import java.util.List;

/**
 * You need to add the following line within the XML configuration file of
 * Logback:<br>
 * <pre>
 * <statusListener class="org.waarp.common.logging.PrintOnlyWarningLogbackStatusListener" />
 * </pre>
 */
public class PrintOnlyWarningLogbackStatusListener
    extends OnConsoleStatusListener {

  private static final int LOG_LEVEL = Status.WARN;

  @Override
  public final void addStatusEvent(final Status status) {
    if (status.getLevel() >= LOG_LEVEL) {
      super.addStatusEvent(status);
    }
  }

  @Override
  public final void start() {
    final List<Status> statuses =
        context.getStatusManager().getCopyOfStatusList();
    for (final Status status : statuses) {
      if (status.getLevel() == LOG_LEVEL) {
        super.start();
      }
    }
  }

}