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From cziege...@apache.org
Subject cvs commit: avalon-excalibur/sourceresolve/src/java/org/apache/excalibur/source/impl/validity ExpiresValidity.java
Date Thu, 27 Feb 2003 09:08:15 GMT
cziegeler    2003/02/27 01:08:15

  Added:       sourceresolve/src/java/org/apache/excalibur/source/impl/validity
                        ExpiresValidity.java
  Log:
  Adding ExpiresValidity
  
  Revision  Changes    Path
  1.1                  avalon-excalibur/sourceresolve/src/java/org/apache/excalibur/source/impl/validity/ExpiresValidity.java
  
  Index: ExpiresValidity.java
  ===================================================================
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2002 The Apache Software Foundation. All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution,
   *    if any, must include the following acknowledgment:
   *    "This product includes software developed by the
   *    Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software
   *    itself, if and wherever such third-party acknowledgments
   *    normally appear.
   *
   * 4. The names "Jakarta", "Avalon", and "Apache Software Foundation"
   *    must not be used to endorse or promote products derived from this
   *    software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache",
   *    nor may "Apache" appear in their name, without prior written
   *    permission of the Apache Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation. For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  package org.apache.excalibur.source.impl.validity;
  
  import org.apache.excalibur.source.SourceValidity;
  
  /**
   * A validation object that holds an expiration date.
   * When the defined time/date has arrived, this validity object is 
   * not valid any more.
   *
   * @author <a href="mailto:cziegeler@apache.org">Carsten Ziegeler</a>
   * @version CVS $Revision: 1.1 $ $Date: 2003/02/27 09:08:15 $
   */
  public final class ExpiresValidity
      implements SourceValidity
  {
      private long expires;
  
      /**
       * Constructor
       * @param expires The delta from now when this validity object gets invalid.
       */
      public ExpiresValidity( long expires ) 
      {
          this.expires = System.currentTimeMillis() + expires;
      }
  
      /**
       * Checks if the expires date is already reached.
       * 
       * @see org.apache.excalibur.source.SourceValidity#isValid()
       */
      public int isValid() 
      {
          final long currentTime = System.currentTimeMillis();
          return (currentTime <= this.expires ? SourceValidity.VALID : SourceValidity.INVALID);
      }
  
      /**
       * This method is never invoked as {@link #isValid} can always perform
       * the complete check.
       * 
       * @see org.apache.excalibur.source.SourceValidity#isValid(SourceValidity)
       */
      public int isValid( SourceValidity newValidity ) 
      {
          return SourceValidity.INVALID;
      }
  
      /**
       * 
       * @see java.lang.Object#toString()
       */
      public String toString() 
      {
          return "ExpiresValidity: " + expires;
      }
  }
  
  
  

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