Paths.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.twill.internal.utils;

import com.google.common.io.Files;

/**
 *
 */
public final class Paths {


  public static String appendSuffix(String extractFrom, String appendTo) {
    String suffix = getExtension(extractFrom);
    if (!suffix.isEmpty()) {
      return appendTo + '.' + suffix;
    }
    return appendTo;
  }

  public static String getExtension(String path) {
    if (path.endsWith(".tar.gz")) {
      return "tar.gz";
    }

    return Files.getFileExtension(path);
  }

  private Paths() {
  }
}