1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * The contents of this file are subject to the terms of the Liferay Enterprise
5    * Subscription License ("License"). You may not use this file except in
6    * compliance with the License. You can obtain a copy of the License by
7    * contacting Liferay, Inc. See the License for the specific language governing
8    * permissions and limitations under the License, including but not limited to
9    * distribution rights of the Software.
10   *
11   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
12   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
14   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
15   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
16   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17   * SOFTWARE.
18   */
19  
20  package com.liferay.portal.tools.sql;
21  
22  import com.liferay.portal.kernel.log.Log;
23  import com.liferay.portal.kernel.log.LogFactoryUtil;
24  import com.liferay.portal.kernel.util.FileUtil;
25  import com.liferay.portal.kernel.util.StringUtil;
26  
27  import java.io.BufferedReader;
28  import java.io.File;
29  import java.io.IOException;
30  import java.io.StringReader;
31  
32  /**
33   * <a href="DerbyUtil.java.html"><b><i>View Source</i></b></a>
34   *
35   * @author Alexander Chow
36   * @author Sandeep Soni
37   * @author Ganesh Ram
38   *
39   */
40  public class DerbyUtil extends DBUtil {
41  
42      public static DBUtil getInstance() {
43          return _instance;
44      }
45  
46      public String buildSQL(String template) throws IOException {
47          template = convertTimestamp(template);
48          template = replaceTemplate(template, getTemplate());
49  
50          template = reword(template );
51          //template = _removeLongInserts(derby);
52          template = removeNull(template);
53          template = StringUtil.replace(template , "\\'", "''");
54  
55          return template;
56      }
57  
58      public boolean isSupportsAlterColumnName() {
59          return _SUPPORTS_ALTER_COLUMN_NAME;
60      }
61  
62      public boolean isSupportsAlterColumnType() {
63          return _SUPPORTS_ALTER_COLUMN_TYPE;
64      }
65  
66      protected DerbyUtil() {
67          super(TYPE_DERBY);
68      }
69  
70      protected void buildCreateFile(String databaseName, boolean minimal)
71          throws IOException {
72  
73          String minimalSuffix = getMinimalSuffix(minimal);
74  
75          File file = new File(
76              "../sql/create" + minimalSuffix + "/create" + minimalSuffix +
77                  "-derby.sql");
78  
79          StringBuilder sb = new StringBuilder();
80  
81          sb.append("drop database " + databaseName + ";\n");
82          sb.append("create database " + databaseName + ";\n");
83          sb.append("connect to " + databaseName + ";\n");
84          sb.append(
85              FileUtil.read(
86                  "../sql/portal" + minimalSuffix + "/portal" + minimalSuffix +
87                      "-derby.sql"));
88          sb.append("\n\n");
89          sb.append(FileUtil.read("../sql/indexes/indexes-derby.sql"));
90          sb.append("\n\n");
91          sb.append(FileUtil.read("../sql/sequences/sequences-derby.sql"));
92  
93          FileUtil.write(file, sb.toString());
94      }
95  
96      protected String getServerName() {
97          return "derby";
98      }
99  
100     protected String[] getTemplate() {
101         return _DERBY;
102     }
103 
104     protected String reword(String data) throws IOException {
105         BufferedReader br = new BufferedReader(new StringReader(data));
106 
107         StringBuilder sb = new StringBuilder();
108 
109         String line = null;
110 
111         while ((line = br.readLine()) != null) {
112             if (line.startsWith(ALTER_COLUMN_NAME) ||
113                 line.startsWith(ALTER_COLUMN_TYPE)) {
114 
115                 line = "-- " + line;
116 
117                 if (_log.isWarnEnabled()) {
118                     _log.warn(
119                         "This statement is not supported by Derby: " + line);
120                 }
121             }
122 
123             sb.append(line);
124             sb.append("\n");
125         }
126 
127         br.close();
128 
129         return sb.toString();
130     }
131 
132     private static String[] _DERBY = {
133         "--", "1", "0",
134         "'1970-01-01-00.00.00.000000'", "current timestamp",
135         " blob", " smallint", " timestamp",
136         " double", " integer", " bigint",
137         " varchar(4000)", " clob", " varchar",
138         " generated always as identity", "commit"
139     };
140 
141     private static boolean _SUPPORTS_ALTER_COLUMN_NAME;
142 
143     private static boolean _SUPPORTS_ALTER_COLUMN_TYPE;
144 
145     private static Log _log = LogFactoryUtil.getLog(DerbyUtil.class);
146 
147     private static DerbyUtil _instance = new DerbyUtil();
148 
149 }