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// Copyright (C) 2011 Philip Aston
// All rights reserved.
//
// This file is part of The Grinder software distribution. Refer to
// the file LICENSE which is part of The Grinder distribution for
// licensing details. The Grinder distribution is available on the
// Internet at http://grinder.sourceforge.net/
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS 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
// COPYRIGHT HOLDERS OR 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.

package net.grinder.util;

import java.io.File;
import java.io.FileFilter;
import java.util.Locale;


/**
 * Simple {@link FileFilter} that checks the file name ends with a given string.
 * The comparison is case insensitive.
 *
 * @author Philip Aston
 */
public class FileExtensionMatcher implements FileFilter {

  private final String m_extension;

  /**
   * Constructor.
   *
   * @param extension
   *          String to check for, including any '.' characters if necessary.
   */
  public FileExtensionMatcher(String extension) {
    m_extension = extension.toLowerCase(Locale.ENGLISH);
  }

  /**
   * {@inheritDoc}
   */
  @Override public boolean accept(File pathname) {
    return pathname.getName().toLowerCase(Locale.ENGLISH).endsWith(m_extension);
  }
}