1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.dao.db;
24  
25  import com.liferay.portal.kernel.dao.db.DB;
26  import com.liferay.portal.kernel.util.StringUtil;
27  
28  import java.io.BufferedReader;
29  import java.io.IOException;
30  import java.io.StringReader;
31  
32  /**
33   * <a href="HypersonicDB.java.html"><b><i>View Source</i></b></a>
34   *
35   * @author Alexander Chow
36   * @author Sandeep Soni
37   * @author Ganesh Ram
38   */
39  public class HypersonicDB extends BaseDB {
40  
41      public static DB getInstance() {
42          return _instance;
43      }
44  
45      public String buildSQL(String template) throws IOException {
46          template = convertTimestamp(template);
47          template = replaceTemplate(template, getTemplate());
48  
49          template = reword(template);
50          template = StringUtil.replace(template, "\\'", "''");
51  
52          return template;
53      }
54  
55      protected HypersonicDB() {
56          super(TYPE_HYPERSONIC);
57      }
58  
59      protected String buildCreateFileContent(
60          String databaseName, int population) {
61  
62          return null;
63      }
64  
65      protected String getServerName() {
66          return "hypersonic";
67      }
68  
69      protected String[] getTemplate() {
70          return _HYPERSONIC;
71      }
72  
73      protected String reword(String data) throws IOException {
74          BufferedReader br = new BufferedReader(new StringReader(data));
75  
76          StringBuilder sb = new StringBuilder();
77  
78          String line = null;
79  
80          while ((line = br.readLine()) != null) {
81              if (line.startsWith(ALTER_COLUMN_NAME)) {
82                  String[] template = buildColumnNameTokens(line);
83  
84                  line = StringUtil.replace(
85                      "alter table @table@ alter column @old-column@ rename to " +
86                          "@new-column@;",
87                      REWORD_TEMPLATE, template);
88              }
89              else if (line.startsWith(ALTER_COLUMN_TYPE)) {
90                  String[] template = buildColumnTypeTokens(line);
91  
92                  line = StringUtil.replace(
93                      "alter table @table@ alter column @old-column@ @type@ " +
94                          "@nullable@;",
95                      REWORD_TEMPLATE, template);
96              }
97  
98              sb.append(line);
99              sb.append("\n");
100         }
101 
102         br.close();
103 
104         return sb.toString();
105     }
106 
107     private static String[] _HYPERSONIC = {
108         "//", "true", "false",
109         "'1970-01-01'", "now()",
110         " binary", " bit", " timestamp",
111         " double", " int", " bigint",
112         " longvarchar", " longvarchar", " varchar",
113         "", "commit"
114     };
115 
116     private static HypersonicDB _instance = new HypersonicDB();
117 
118 }