// 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.


#ifndef IMPALA_UTIL_PATH_BUILDER_H
#define IMPALA_UTIL_PATH_BUILDER_H

#include <string>

namespace impala {

/// Utility class to construct full paths relative to the impala_home path.
class PathBuilder {
 public:
  /// Sets full_path to <IMPALA_HOME>/path
  static void GetFullPath(const std::string& path, std::string* full_path);

  /// Sets full_path to <IMPALA_HOME>/<build><debug OR release>/path
  static void GetFullBuildPath(const std::string& path, std::string* full_path);

 private:
  /// Cache of env['IMPALA_HOME']
  static const char* impala_home_;

  /// Load impala_home_ if it is not already loaded
  static void LoadImpalaHome();
};

}

#endif