src/main/java/org/hedgecode/chess/scanner/regex/RegexBuilder.java

   1 /*
   2  * Copyright (c) 2019-2020. Developed by Hedgecode.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *   http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package org.hedgecode.chess.scanner.regex;
  18
  19 import java.io.UnsupportedEncodingException;
  20 import java.net.URLEncoder;
  21
  22 import org.hedgecode.chess.scanner.ChessHogScannerConstants;
  23
  24 /**
  25  * RegexBuilder
  26  *
  27  * @author Dmitry Samoshin aka gotty
  28  */
  29 public class RegexBuilder {
  30
  31     public static String build(Type type, String target, RegexParams params) {
  32         return type.format(
  33                 target,
  34                 params
  35         );
  36     }
  37
  38     public enum Type {
  39
  40         TOURNAMENT {
  41             @Override
  42             public String format(String target, RegexParams params) {
  43                 if (params.getPageId() != null) {
  44                     target = target.replace(
  45                             RegexParams.PAGE_ID,
  46                             params.getPageId()
  47                     );
  48                 }
  49                 return target.replace(
  50                         RegexParams.TOURNAMENT_ID,
  51                         params.getTournamentId()
  52                 );
  53             }
  54         },
  55
  56         GAME {
  57             @Override
  58             public String format(String target, RegexParams params) {
  59                 return target.replace(
  60                         RegexParams.GAME_ID,
  61                         params.getGameId()
  62                 );
  63             }
  64         },
  65
  66         QUERY {
  67             @Override
  68             public String format(String target, RegexParams params) {
  69                 return target.replace(
  70                         RegexParams.QUERY,
  71                         params.isUrlEncode()
  72                                 ? urlEncode(params.getQuery())
  73                                 : params.getQuery()
  74                 );
  75             }
  76         };
  77
  78         public abstract String format(String target, RegexParams params);
  79
  80         private static String urlEncode(String query) throws RuntimeException {
  81             String encodeQuery;
  82             try {
  83                 encodeQuery = URLEncoder.encode(
  84                         query, ChessHogScannerConstants.CHARSET.name()
  85                 );
  86             } catch (UnsupportedEncodingException cause) {
  87                 throw new RuntimeException(
  88                         String.format("Unsupported encoding: %s", ChessHogScannerConstants.CHARSET.name()),
  89                         cause
  90                 );
  91             }
  92             return encodeQuery;
  93         }
  94
  95     }
  96
  97 }