/*
 * 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.geode.modules.session.catalina;

import org.apache.catalina.Manager;
import org.apache.catalina.connector.Request;
import org.apache.catalina.connector.Response;
import org.apache.catalina.valves.ValveBase;
import org.apache.juli.logging.Log;
import org.apache.juli.logging.LogFactory;

import javax.servlet.ServletException;
import java.io.IOException;

public class CommitSessionValve extends ValveBase {

  private static final Log log = LogFactory.getLog(CommitSessionValve.class);

  protected static final String info =
      "org.apache.geode.modules.session.catalina.CommitSessionValve/1.0";

  public CommitSessionValve() {
    log.info("Initialized");
  }

  @Override
  public void invoke(Request request, Response response) throws IOException, ServletException {
    // Get the Manager
    Manager manager = request.getContext().getManager();
    DeltaSessionFacade session = null;

    // Invoke the next Valve
    try {
      getNext().invoke(request, response);
    } finally {
      // Commit and if the correct Manager was found
      if (manager instanceof DeltaSessionManager) {
        session = (DeltaSessionFacade) request.getSession(false);
        DeltaSessionManager dsm = ((DeltaSessionManager) manager);
        if (session != null) {
          if (session.isValid()) {
            dsm.removeTouchedSession(session.getId());
            session.commit();
            if (dsm.getTheContext().getLogger().isDebugEnabled()) {
              dsm.getTheContext().getLogger().debug(session + ": Committed.");
            }
          } else {
            if (dsm.getTheContext().getLogger().isDebugEnabled()) {
              dsm.getTheContext().getLogger().debug(session + ": Not valid so not committing.");
            }
          }
        }
      }
    }
  }
}