url-parser.h

Go to the documentation of this file.

// Copyright 2012 Cloudera Inc.
//
// Licensed 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_URL_PARSER_H
#define IMPALA_UTIL_URL_PARSER_H

#include "runtime/string-value.h"
#include "runtime/string-search.h"

namespace impala {


class UrlParser {
 public:
  enum UrlPart {
    INVALID,
    AUTHORITY,
    FILE,
    HOST,
    PATH,
    PROTOCOL,
    QUERY,
    REF,
    USERINFO
  };

  static bool ParseUrl(const StringValue& url, UrlPart part, StringValue* result);

  static bool ParseUrlKey(const StringValue& url, UrlPart part, const StringValue& key,
      StringValue* result);

  static UrlPart GetUrlPart(const StringValue& part);

 private:
  // Constants representing parts of a URL.
  static const StringValue url_authority;
  static const StringValue url_file;
  static const StringValue url_host;
  static const StringValue url_path;
  static const StringValue url_protocol;
  static const StringValue url_query;
  static const StringValue url_ref;
  static const StringValue url_userinfo;
  // Constants used in searching for URL parts.
  static const StringValue protocol;
  static const StringValue at;
  static const StringValue slash;
  static const StringValue colon;
  static const StringValue question;
  static const StringValue hash;
  static const StringSearch protocol_search;
  static const StringSearch at_search;
  static const StringSearch slash_search;
  static const StringSearch colon_search;
  static const StringSearch question_search;
  static const StringSearch hash_search;
};

}

#endif