1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights 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.io.unsync.UnsyncBufferedReader;
27  import com.liferay.portal.kernel.io.unsync.UnsyncStringReader;
28  import com.liferay.portal.kernel.util.StringUtil;
29  
30  import java.io.IOException;
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          UnsyncBufferedReader unsyncBufferedReader = new UnsyncBufferedReader(
75              new UnsyncStringReader(data));
76  
77          StringBuilder sb = new StringBuilder();
78  
79          String line = null;
80  
81          while ((line = unsyncBufferedReader.readLine()) != null) {
82              if (line.startsWith(ALTER_COLUMN_NAME)) {
83                  String[] template = buildColumnNameTokens(line);
84  
85                  line = StringUtil.replace(
86                      "alter table @table@ alter column @old-column@ rename to " +
87                          "@new-column@;",
88                      REWORD_TEMPLATE, template);
89              }
90              else if (line.startsWith(ALTER_COLUMN_TYPE)) {
91                  String[] template = buildColumnTypeTokens(line);
92  
93                  line = StringUtil.replace(
94                      "alter table @table@ alter column @old-column@ @type@ " +
95                          "@nullable@;",
96                      REWORD_TEMPLATE, template);
97              }
98  
99              sb.append(line);
100             sb.append("\n");
101         }
102 
103         unsyncBufferedReader.close();
104 
105         return sb.toString();
106     }
107 
108     private static String[] _HYPERSONIC = {
109         "//", "true", "false",
110         "'1970-01-01'", "now()",
111         " binary", " bit", " timestamp",
112         " double", " int", " bigint",
113         " longvarchar", " longvarchar", " varchar",
114         "", "commit"
115     };
116 
117     private static HypersonicDB _instance = new HypersonicDB();
118 
119 }