/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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.
   */
  package org.apache.omid.tso;
  
  import org.apache.commons.daemon.Daemon;
  import org.apache.commons.daemon.DaemonContext;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Wraps TSO Server as a Daemon
   */
  public class TsoServerDaemon implements Daemon {
  
      private static final Logger LOG = LoggerFactory.getLogger(TsoServerDaemon.class);
      private TSOServer tsoServer;
  
      @Override
      public void init(DaemonContext daemonContext) throws Exception {
          try {
              TSOServerConfig config = new TSOServerConfig();
              LOG.info("Creating TSOServer instance as a Daemon process...");
              tsoServer = TSOServer.getInitializedTsoServer(config);
              LOG.info("TSOServer instance for Daemon process created");
          } catch (Exception e) {
              LOG.error("Error creating TSOServer instance", e);
              throw e;
          }
      }
  
      @Override
      public void start() throws Exception {
          tsoServer.startAsync();
          tsoServer.awaitRunning();
      }
  
      @Override
      public void stop() throws Exception {
          tsoServer.stopAsync();
          tsoServer.awaitTerminated();
      }
  
      @Override
      public void destroy() {
      }
  
  }