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.tools.sql;
24  
25  import com.liferay.portal.kernel.log.Log;
26  import com.liferay.portal.kernel.log.LogFactoryUtil;
27  import com.liferay.portal.kernel.util.StringUtil;
28  
29  import java.io.BufferedReader;
30  import java.io.IOException;
31  import java.io.StringReader;
32  
33  /**
34   * <a href="IngresUtil.java.html"><b><i>View Source</i></b></a>
35   *
36   * @author David Maier
37   *
38   */
39  public class IngresUtil extends DBUtil {
40  
41      public static DBUtil 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, "\\n", "'+x'0a'+'");
51  
52          return template;
53      }
54  
55      public boolean isSupportsAlterColumnName() {
56          return _SUPPORTS_ALTER_COLUMN_NAME;
57      }
58  
59      protected IngresUtil() {
60          super(TYPE_INGRES);
61      }
62  
63      protected void buildCreateFile(String databaseName, boolean minimal) {
64      }
65  
66      protected String getServerName() {
67          return "ingres";
68      }
69  
70      protected String[] getTemplate() {
71          return _INGRES;
72      }
73  
74      protected String replaceTemplate(String template, String[] actual) {
75          if ((template == null) || (TEMPLATE == null) || (actual == null)) {
76              return null;
77          }
78  
79          if (TEMPLATE.length != actual.length) {
80              return template;
81          }
82  
83          for (int i = 0; i < TEMPLATE.length; i++) {
84              if (TEMPLATE[i].equals("##") ||
85                  TEMPLATE[i].equals("'01/01/1970'")) {
86  
87                  template = template.replaceAll(TEMPLATE[i], actual[i]);
88              }
89              else if (TEMPLATE[i].equals("COMMIT_TRANSACTION")) {
90                  template = StringUtil.replace(
91                      template, TEMPLATE[i] + ";", actual[i]);
92              }
93              else {
94                  template = template.replaceAll(
95                      "\\b" + TEMPLATE[i] + "\\b", actual[i]);
96              }
97          }
98  
99          return template;
100     }
101 
102     protected String reword(String data) throws IOException {
103         BufferedReader br = new BufferedReader(new StringReader(data));
104 
105         StringBuilder sb = new StringBuilder();
106 
107         String line = null;
108 
109         while ((line = br.readLine()) != null) {
110             if (line.startsWith(ALTER_COLUMN_NAME)) {
111                 line = "-- " + line;
112 
113                 if (_log.isWarnEnabled()) {
114                     _log.warn(
115                         "This statement is not supported by Ingres: " + line);
116                 }
117             }
118             else if (line.startsWith(ALTER_COLUMN_TYPE)) {
119                 String[] template = buildColumnTypeTokens(line);
120 
121                 line = StringUtil.replace(
122                     "alter table @table@ alter @old-column@ @type@;",
123                     REWORD_TEMPLATE, template);
124             }
125             else if (line.indexOf(DROP_PRIMARY_KEY) != -1) {
126                 String[] tokens = StringUtil.split(line, " ");
127 
128                 line = StringUtil.replace(
129                     "alter table @table@ drop constraint @table@_pkey;",
130                     "@table@", tokens[2]);
131             }
132 
133             sb.append(line);
134             sb.append("\n");
135         }
136 
137         br.close();
138 
139         return sb.toString();
140     }
141 
142     private static String[] _INGRES = {
143         "--", "1", "0",
144         "'1970-01-01'", "date('now')",
145         " byte varying", " tinyint", " timestamp",
146         " float", " integer", " bigint",
147         " varchar(1000)", " long varchar", " varchar",
148         "", "commit;\\g"
149     };
150 
151     private static boolean _SUPPORTS_ALTER_COLUMN_NAME;
152 
153     private static Log _log = LogFactoryUtil.getLog(IngresUtil.class);
154 
155     private static IngresUtil _instance = new IngresUtil();
156 
157 }