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    1   /*
    2    *  Licensed to the Apache Software Foundation (ASF) under one
    3    *  or more contributor license agreements.  See the NOTICE file
    4    *  distributed with this work for additional information
    5    *  regarding copyright ownership.  The ASF licenses this file
    6    *  to you under the Apache License, Version 2.0 (the
    7    *  "License"); you may not use this file except in compliance
    8    *  with the License.  You may obtain a copy of the License at
    9    *
    10   *    http://www.apache.org/licenses/LICENSE-2.0
    11   *
    12   *  Unless required by applicable law or agreed to in writing,
    13   *  software distributed under the License is distributed on an
    14   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    15   *  KIND, either express or implied.  See the License for the
    16   *  specific language governing permissions and limitations
    17   *  under the License.
    18   *
    19   */
    20  package org.apache.mina.filter.query;
    21
    22  import java.util.Map;
    23  import java.util.concurrent.ScheduledFuture;
    24
    25  import org.apache.mina.api.IoSession;
    26  import org.apache.mina.util.AbstractIoFuture;
    27
    28  /**
    29   * A future representing the promise of a reply to a request.
    30   *
    31   * @author <a href="http://mina.apache.org">Apache MINA Project</a>
    32   *
    33   * @param <REQUEST> the request type
    34   * @param <RESPONSE> the response type
    35   */
    36  class RequestFuture<REQUEST extends Request, RESPONSE extends Response> extends AbstractIoFuture<RESPONSE> {
    37
    38      private final IoSession session;
    39
    40      private final Object id;
    41
    42      private ScheduledFuture<?> schedFuture;
    43
    44      public RequestFuture(IoSession session, Object id) {
    45          this.session = session;
    46          this.id = id;
    47      }
    48
    49      @Override
    50      protected boolean cancelOwner(boolean mayInterruptIfRunning) {
    51          throw new IllegalStateException("not implemented");
    52      }
    53
    54      void complete(RESPONSE response) {
    55          if (schedFuture != null) {
    56              schedFuture.cancel(true);
    57          }
    58          setResult(response);
    59      }
    60
    61      void setTimeoutFuture(ScheduledFuture<?> schedFuture) {
    62          this.schedFuture = schedFuture;
    63      }
    64
    65      Runnable timeout = new Runnable() {
    66
    67          @SuppressWarnings("rawtypes")
    68          @Override
    69          public void run() {
    70              Map inFlight = session.getAttribute(RequestFilter.IN_FLIGHT_REQUESTS);
    71              if (inFlight != null) {
    72                  inFlight.remove(id);
    73              }
    74              setException(new RequestTimeoutException());
    75
    76          }
    77      };
    78  }