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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.common;
    21
    22  /**
    23   * Represents the type of idleness of {@link IoSession} or
    24   * {@link IoSession}.  There are three types of idleness:
    25   * <ul>
    26   *   <li>{@link #READER_IDLE} - No data is coming from the remote peer.</li>
    27   *   <li>{@link #WRITER_IDLE} - Session is not writing any data.</li>
    28   *   <li>{@link #BOTH_IDLE} - Both {@link #READER_IDLE} and {@link #WRITER_IDLE}.</li>
    29   * </ul>
    30   * <p>
    31   * Idle time settings are all disabled by default.  You can enable them
    32   * using {@link IoSession#setIdleTime(IdleStatus,int)}.
    33   *
    34   * @author The Apache Directory Project (mina-dev@directory.apache.org)
    35   * @version $Rev: 555855 $, $Date: 2007-07-13 12:19:00 +0900 (Fri, 13 Jul 2007) $
    36   */
    37  public class IdleStatus {
    38      /**
    39       * Represents the session status that no data is coming from the remote
    40       * peer.
    41       */
    42      public static final IdleStatus READER_IDLE = new IdleStatus("reader idle");
    43
    44      /**
    45       * Represents the session status that the session is not writing any data.
    46       */
    47      public static final IdleStatus WRITER_IDLE = new IdleStatus("writer idle");
    48
    49      /**
    50       * Represents both {@link #READER_IDLE} and {@link #WRITER_IDLE}.
    51       */
    52      public static final IdleStatus BOTH_IDLE = new IdleStatus("both idle");
    53
    54      private final String strValue;
    55
    56      /**
    57       * Creates a new instance.
    58       */
    59      private IdleStatus(String strValue) {
    60          this.strValue = strValue;
    61      }
    62
    63      /**
    64       * Returns the string representation of this status.
    65       * <ul>
    66       *   <li>{@link #READER_IDLE} - <tt>"reader idle"</tt></li>
    67       *   <li>{@link #WRITER_IDLE} - <tt>"writer idle"</tt></li>
    68       *   <li>{@link #BOTH_IDLE} - <tt>"both idle"</tt></li>
    69       * </ul>
    70       */
    71      public String toString() {
    72          return strValue;
    73      }
    74  }