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Posted to dev@commons.apache.org by ad...@apache.org on 2002/11/01 04:25:51 UTC

cvs commit: jakarta-commons-sandbox/vfs/src/java/org/apache/commons/vfs/provider AbstractVfsContainer.java AbstractFileSystemProvider.java

adammurdoch    2002/10/31 19:25:51

  Modified:    vfs/src/java/org/apache/commons/vfs/provider
                        AbstractFileSystemProvider.java
  Added:       vfs/src/java/org/apache/commons/vfs/provider
                        AbstractVfsContainer.java
  Log:
  Extract and generalise the file system lifecycle stuff from AbstractFileSystemProvider, into
  new AbstractVfsContainer.
  
  Revision  Changes    Path
  1.12      +4 -21     jakarta-commons-sandbox/vfs/src/java/org/apache/commons/vfs/provider/AbstractFileSystemProvider.java
  
  Index: AbstractFileSystemProvider.java
  ===================================================================
  RCS file: /home/cvs/jakarta-commons-sandbox/vfs/src/java/org/apache/commons/vfs/provider/AbstractFileSystemProvider.java,v
  retrieving revision 1.11
  retrieving revision 1.12
  diff -u -r1.11 -r1.12
  --- AbstractFileSystemProvider.java	28 Oct 2002 02:05:06 -0000	1.11
  +++ AbstractFileSystemProvider.java	1 Nov 2002 03:25:51 -0000	1.12
  @@ -70,7 +70,7 @@
    * @version $Revision$ $Date$
    */
   public abstract class AbstractFileSystemProvider
  -    extends AbstractVfsComponent
  +    extends AbstractVfsContainer
       implements FileProvider
   {
       /**
  @@ -84,17 +84,8 @@
        */
       public void close()
       {
  -        // Close all the filesystems created by this provider
  -        for ( Iterator iterator = fileSystems.values().iterator(); iterator.hasNext(); )
  -        {
  -            Object fileSystem = iterator.next();
  -            if ( fileSystem instanceof VfsComponent )
  -            {
  -                final VfsComponent vfsComponent = (VfsComponent)fileSystem;
  -                vfsComponent.close();
  -            }
  -        }
           fileSystems.clear();
  +        super.close();
       }
   
       /**
  @@ -109,21 +100,13 @@
       
       /**
        * Adds a file system to those cached by this provider.  The file system
  -     * may implement {@link VfsComponent}.
  +     * may implement {@link VfsComponent}, in which case it is initialised.
        */
       protected void addFileSystem( final Object key, final FileSystem fs )
           throws FileSystemException
       {
  -        // Initialise
  -        if ( fs instanceof VfsComponent )
  -        {
  -            VfsComponent vfsComponent = (VfsComponent)fs;
  -            vfsComponent.setLogger( getLogger() );
  -            vfsComponent.setContext( getContext() );
  -            vfsComponent.init();
  -        }
  -
           // Add to the cache
  +        addComponent( fs );
           fileSystems.put( key, fs );
       }
   
  
  
  
  1.1                  jakarta-commons-sandbox/vfs/src/java/org/apache/commons/vfs/provider/AbstractVfsContainer.java
  
  Index: AbstractVfsContainer.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 acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Commons", 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 names without prior written
   *    permission of the Apache Group.
   *
   * 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.commons.vfs.provider;
  
  import java.util.ArrayList;
  import org.apache.commons.vfs.FileSystemException;
  
  /**
   * A {@link VfsComponent} that contains a set of sub-components.
   *
   * @author <a href="mailto:adammurdoch@apache.org">Adam Murdoch</a>
   * @version $Revision: 1.1 $ $Date: 2002/11/01 03:25:51 $
   */
  public abstract class AbstractVfsContainer
      extends AbstractVfsComponent
  {
      /** The components contained by this component. */
      private final ArrayList components = new ArrayList();
  
      /**
       * Adds a sub-component to this component.  If the sub-component implements
       * {@link VfsComponent}, it is initialised.  All sub-components are closed
       * when this component is closed.
       */
      protected void addComponent( final Object component )
          throws FileSystemException
      {
          if ( ! components.contains( component ) )
          {
              // Initialise
              if ( component instanceof VfsComponent )
              {
                  VfsComponent vfsComponent = (VfsComponent)component;
                  vfsComponent.setLogger( getLogger() );
                  vfsComponent.setContext( getContext() );
                  vfsComponent.init();
              }
  
              // Keep track of component, to close it later
              components.add( component );
          }
      }
  
      /**
       * Closes the sub-components of this component.
       */
      public void close()
      {
          // Close all components
          final int count = components.size();
          for ( int i = 0; i < count; i++ )
          {
              final Object component = components.get( i );
              if ( component instanceof VfsComponent )
              {
                  final VfsComponent vfsComponent = (VfsComponent)component;
                  vfsComponent.close();
              }
          }
          components.clear();
      }
  }
  
  
  

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