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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
    21  package org.apache.mina.service.executor;
    22
    23  import org.apache.mina.api.IoHandler;
    24  import org.apache.mina.api.IoSession;
    25
    26  /**
    27   * In charge of calling the {@link IoHandler} for a given {@link Event}
    28   *
    29   * @author <a href="http://mina.apache.org">Apache MINA Project</a>
    30   */
    31  class HandlerCaller implements EventVisitor {
    32
    33      @Override
    34      public void visit(CloseEvent event) {
    35          IoSession session = event.getSession();
    36          try {
    37              session.getService().getIoHandler().sessionClosed(session);
    38          } catch (Exception e) {
    39              session.getService().getIoHandler().exceptionCaught(session, e);
    40          }
    41      }
    42
    43      @Override
    44      public void visit(IdleEvent event) {
    45          IoSession session = event.getSession();
    46          try {
    47              session.getService().getIoHandler().sessionIdle(session, event.getIdleStatus());
    48          } catch (Exception e) {
    49              session.getService().getIoHandler().exceptionCaught(session, e);
    50          }
    51
    52      }
    53
    54      @Override
    55      public void visit(OpenEvent event) {
    56          IoSession session = event.getSession();
    57          try {
    58              session.getService().getIoHandler().sessionOpened(session);
    59          } catch (Exception e) {
    60              session.getService().getIoHandler().exceptionCaught(session, e);
    61          }
    62
    63      }
    64
    65      @Override
    66      public void visit(ReceiveEvent event) {
    67          IoSession session = event.getSession();
    68          try {
    69              session.getService().getIoHandler().messageReceived(session, event.getMessage());
    70          } catch (Exception e) {
    71              session.getService().getIoHandler().exceptionCaught(session, e);
    72          }
    73      }
    74
    75      @Override
    76      public void visit(SentEvent event) {
    77          IoSession session = event.getSession();
    78          try {
    79              session.getService().getIoHandler().messageSent(session, event.getMessage());
    80          } catch (Exception e) {
    81              session.getService().getIoHandler().exceptionCaught(session, e);
    82          }
    83      }
    84  }