cvs commit: jakarta-commons-sandbox/vfs/src/java/org/apache/commons/vfs/tasks ShowFileTask.java

[ad...@apache.org]

adammurdoch    2002/08/20 18:40:45

  Added:       vfs/src/java/org/apache/commons/vfs/tasks ShowFileTask.java
  Log:
  Added a debug Ant task that writes out the details of a file.
  
  Revision  Changes    Path
  1.1                  jakarta-commons-sandbox/vfs/src/java/org/apache/commons/vfs/tasks/ShowFileTask.java
  
  Index: ShowFileTask.java
  ===================================================================
  /*
   * Copyright (C) The Apache Software Foundation. All rights reserved.
   *
   * This software is published under the terms of the Apache Software License
   * version 1.1, a copy of which has been included  with this distribution in
   * the LICENSE.txt file.
   */
  package org.apache.commons.vfs.tasks;
  
  import java.io.BufferedReader;
  import java.io.File;
  import java.io.InputStream;
  import java.io.InputStreamReader;
  import java.util.Date;
  import org.apache.commons.vfs.FileContent;
  import org.apache.commons.vfs.FileObject;
  import org.apache.commons.vfs.FileSystemManager;
  import org.apache.commons.vfs.FileSystemManagerFactory;
  import org.apache.commons.vfs.FileType;
  import org.apache.tools.ant.BuildException;
  import org.apache.tools.ant.Task;
  
  /**
   * An Ant task, which writes the details of a file to Ant's log.
   *
   * @author <a href="mailto:adammurdoch@apache.org">Adam Murdoch</a>
   * @version $Revision: 1.1 $ $Date: 2002/08/21 01:40:45 $
   */
  public class ShowFileTask
      extends Task
  {
      private String url;
      private boolean showContent;
  
      /**
       * The URL of the file to display.
       */
      public void setUrl( final String url )
      {
          this.url = url;
      }
  
      /**
       * Shows the content.  Assumes the content is text, encoded using the
       * platform's default encoding.
       */
      public void setShowContent( final boolean showContent )
      {
          this.showContent = showContent;
      }
  
      /**
       * Executes the task.
       */
      public void execute() throws BuildException
      {
          try
          {
              // Lookup the file
              final FileSystemManager manager = FileSystemManagerFactory.getManager();
              final File baseDir = getProject().getBaseDir();
              final FileObject file = manager.resolveFile( baseDir, url );
  
              // Write details
              log( "URI: " + file.getName().getURI() );
              log( "Exists: " + file.exists() );
              if ( !file.exists() )
              {
                  return;
              }
              log( "Type: " + file.getType().getName() );
              if ( file.getType() == FileType.FILE )
              {
                  final FileContent content = file.getContent();
                  log( "Content-Length: " + content.getSize() );
                  log( "Last-Modified" + new Date( content.getLastModifiedTime() ) );
                  if ( showContent )
                  {
                      log( "Content:" );
                      logContent( file );
                  }
              }
              else
              {
                  final FileObject[] children = file.getChildren();
                  log( "Child Count: " + children.length );
                  log( "Children:" );
                  for ( int i = 0; i < children.length; i++ )
                  {
                      FileObject child = children[ i ];
                      log( "    " + child.getName().getBaseName() );
                  }
              }
          }
          catch ( final Exception e )
          {
              throw new BuildException( e );
          }
      }
  
      /**
       * Writes the content of the file to Ant log.
       */
      private void logContent( FileObject file ) throws Exception
      {
          final InputStream instr = file.getContent().getInputStream();
          try
          {
              final BufferedReader reader = new BufferedReader( new InputStreamReader( instr ) );
              while ( true )
              {
                  final String line = reader.readLine();
                  if ( line == null )
                  {
                      break;
                  }
                  log( line );
              }
          }
          finally
          {
              instr.close();
          }
      }
  }
  
  
  

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