Package org.teiid.translator

Source Code of org.teiid.translator.FileConnection$Util

/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership.  Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.translator;

import java.io.File;

import javax.resource.cci.Connection;

import org.teiid.core.util.FileUtils;

/**
* Simple {@link Connection} interface for the filesystem
*/
public interface FileConnection extends Connection {
 
  /**
   * Gets the file at the given path.  This file may not exist, but can be used to create/save a new file.
   * @param path
   * @return
   */
  File getFile(String path);
 
  public static class Util {
   
    /**
     * Gets the file or files, if the path is a directory, at the given path.  The path may include
     * a trailing extension wildcard, such as foo/bar/*.txt to return only txt files at the given path.
     * Note the path can only refer to a single directory - directories are not recursively scanned.
     * @param path
     * @return
     */
    public static File[] getFiles(String location, FileConnection fc) {
      File datafile = fc.getFile(location);
         
          if (datafile.isDirectory()) {
            return datafile.listFiles();
          }
         
          String fname = datafile.getName();
          String ext = FileUtils.getExtension(fname);
          File parentDir = datafile.getParentFile();
         
          // determine if the wild card is used to indicate all files
          // of the specified extension
          if (ext != null && "*".equals(FileUtils.getBaseFileNameWithoutExtension(fname))) { //$NON-NLS-1$           
              return FileUtils.findAllFilesInDirectoryHavingExtension(parentDir.getAbsolutePath(), "." + ext); //$NON-NLS-1$
          }
          if (!datafile.exists()) {
            return null;
          }
          return new File[] {datafile};
    }
   
  }
 
}
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