001    /**
002     * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.dao.db;
016    
017    import com.liferay.portal.kernel.dao.db.DB;
018    import com.liferay.portal.kernel.dao.db.Index;
019    import com.liferay.portal.kernel.dao.jdbc.DataAccess;
020    import com.liferay.portal.kernel.io.unsync.UnsyncBufferedReader;
021    import com.liferay.portal.kernel.io.unsync.UnsyncStringReader;
022    import com.liferay.portal.kernel.util.FileUtil;
023    import com.liferay.portal.kernel.util.GetterUtil;
024    import com.liferay.portal.kernel.util.StringBundler;
025    import com.liferay.portal.kernel.util.StringUtil;
026    
027    import java.io.IOException;
028    
029    import java.sql.Connection;
030    import java.sql.PreparedStatement;
031    import java.sql.ResultSet;
032    import java.sql.SQLException;
033    
034    import java.util.ArrayList;
035    import java.util.List;
036    import java.util.regex.Matcher;
037    import java.util.regex.Pattern;
038    
039    /**
040     * @author Alexander Chow
041     * @author Sandeep Soni
042     * @author Ganesh Ram
043     */
044    public class OracleDB extends BaseDB {
045    
046            public static DB getInstance() {
047                    return _instance;
048            }
049    
050            @Override
051            public String buildSQL(String template) throws IOException {
052                    template = _preBuildSQL(template);
053                    template = _postBuildSQL(template);
054    
055                    return template;
056            }
057    
058            @Override
059            public void buildSQLFile(String sqlDir, String fileName)
060                    throws IOException {
061    
062                    String oracle = buildTemplate(sqlDir, fileName);
063    
064                    oracle = _preBuildSQL(oracle);
065    
066                    UnsyncBufferedReader unsyncBufferedReader = new UnsyncBufferedReader(
067                            new UnsyncStringReader(oracle));
068    
069                    StringBundler imageSB = new StringBundler();
070                    StringBundler journalArticleSB = new StringBundler();
071                    StringBundler journalStructureSB = new StringBundler();
072                    StringBundler journalTemplateSB = new StringBundler();
073    
074                    String line = null;
075    
076                    while ((line = unsyncBufferedReader.readLine()) != null) {
077                            if (line.startsWith("insert into Image")) {
078                                    _convertToOracleCSV(line, imageSB);
079                            }
080                            else if (line.startsWith("insert into JournalArticle (")) {
081                                    _convertToOracleCSV(line, journalArticleSB);
082                            }
083                            else if (line.startsWith("insert into JournalStructure (")) {
084                                    _convertToOracleCSV(line, journalStructureSB);
085                            }
086                            else if (line.startsWith("insert into JournalTemplate (")) {
087                                    _convertToOracleCSV(line, journalTemplateSB);
088                            }
089                    }
090    
091                    unsyncBufferedReader.close();
092    
093                    if (imageSB.length() > 0) {
094                            FileUtil.write(
095                                    sqlDir + "/" + fileName + "/" + fileName + "-oracle-image.csv",
096                                    imageSB.toString());
097                    }
098    
099                    if (journalArticleSB.length() > 0) {
100                            FileUtil.write(
101                                    sqlDir + "/" + fileName + "/" + fileName +
102                                            "-oracle-journalarticle.csv",
103                                    journalArticleSB.toString());
104                    }
105    
106                    if (journalStructureSB.length() > 0) {
107                            FileUtil.write(
108                                    sqlDir + "/" + fileName + "/" + fileName +
109                                            "-oracle-journalstructure.csv",
110                                    journalStructureSB.toString());
111                    }
112    
113                    if (journalTemplateSB.length() > 0) {
114                            FileUtil.write(
115                                    sqlDir + "/" + fileName + "/" + fileName +
116                                            "-oracle-journaltemplate.csv",
117                                    journalTemplateSB.toString());
118                    }
119    
120                    oracle = _postBuildSQL(oracle);
121    
122                    FileUtil.write(
123                            sqlDir + "/" + fileName + "/" + fileName + "-oracle.sql", oracle);
124            }
125    
126            @Override
127            public List<Index> getIndexes() throws SQLException {
128                    List<Index> indexes = new ArrayList<Index>();
129    
130                    Connection con = null;
131                    PreparedStatement ps = null;
132                    ResultSet rs = null;
133    
134                    try {
135                            con = DataAccess.getConnection();
136    
137                            StringBundler sb = new StringBundler(3);
138    
139                            sb.append("select index_name, table_name, uniqueness from ");
140                            sb.append("user_indexes where index_name like 'LIFERAY_%' or ");
141                            sb.append("index_name like 'IX_%'");
142    
143                            String sql = sb.toString();
144    
145                            ps = con.prepareStatement(sql);
146    
147                            rs = ps.executeQuery();
148    
149                            while (rs.next()) {
150                                    String indexName = rs.getString("index_name");
151                                    String tableName = rs.getString("table_name");
152                                    String uniqueness = rs.getString("uniqueness");
153    
154                                    boolean unique = true;
155    
156                                    if (uniqueness.equalsIgnoreCase("NONUNIQUE")) {
157                                            unique = false;
158                                    }
159    
160                                    indexes.add(new Index(indexName, tableName, unique));
161                            }
162                    }
163                    finally {
164                            DataAccess.cleanUp(con, ps, rs);
165                    }
166    
167                    return indexes;
168            }
169    
170            @Override
171            public boolean isSupportsInlineDistinct() {
172                    return _SUPPORTS_INLINE_DISTINCT;
173            }
174    
175            protected OracleDB() {
176                    super(TYPE_ORACLE);
177            }
178    
179            @Override
180            protected String buildCreateFileContent(
181                            String sqlDir, String databaseName, int population)
182                    throws IOException {
183    
184                    String suffix = getSuffix(population);
185    
186                    StringBundler sb = new StringBundler(13);
187    
188                    sb.append("drop user &1 cascade;\n");
189                    sb.append("create user &1 identified by &2;\n");
190                    sb.append("grant connect,resource to &1;\n");
191                    sb.append("connect &1/&2;\n");
192                    sb.append("set define off;\n");
193                    sb.append("\n");
194                    sb.append(
195                            readFile(
196                                    sqlDir + "/portal" + suffix + "/portal" + suffix +
197                                            "-oracle.sql"));
198                    sb.append("\n\n");
199                    sb.append(readFile(sqlDir + "/indexes/indexes-oracle.sql"));
200                    sb.append("\n\n");
201                    sb.append(readFile(sqlDir + "/sequences/sequences-oracle.sql"));
202                    sb.append("\n");
203                    sb.append("quit");
204    
205                    return sb.toString();
206            }
207    
208            @Override
209            protected String getServerName() {
210                    return "oracle";
211            }
212    
213            @Override
214            protected String[] getTemplate() {
215                    return _ORACLE;
216            }
217    
218            @Override
219            protected String replaceTemplate(String template, String[] actual) {
220    
221                    // LPS-12048
222    
223                    Matcher matcher = _varcharPattern.matcher(template);
224    
225                    StringBuffer sb = new StringBuffer();
226    
227                    while (matcher.find()) {
228                            int size = GetterUtil.getInteger(matcher.group()) * 4;
229    
230                            if (size > 4000) {
231                                    size = 4000;
232                            }
233    
234                            matcher.appendReplacement(sb, "VARCHAR(" + size + ")");
235                    }
236    
237                    matcher.appendTail(sb);
238    
239                    template = sb.toString();
240    
241                    return super.replaceTemplate(template, actual);
242            }
243    
244            @Override
245            protected String reword(String data) throws IOException {
246                    UnsyncBufferedReader unsyncBufferedReader = new UnsyncBufferedReader(
247                            new UnsyncStringReader(data));
248    
249                    StringBundler sb = new StringBundler();
250    
251                    String line = null;
252    
253                    while ((line = unsyncBufferedReader.readLine()) != null) {
254                            if (line.startsWith(ALTER_COLUMN_NAME)) {
255                                    String[] template = buildColumnNameTokens(line);
256    
257                                    line = StringUtil.replace(
258                                            "alter table @table@ rename column @old-column@ to " +
259                                                    "@new-column@;",
260                                            REWORD_TEMPLATE, template);
261                            }
262                            else if (line.startsWith(ALTER_COLUMN_TYPE)) {
263                                    String[] template = buildColumnTypeTokens(line);
264    
265                                    line = StringUtil.replace(
266                                            "alter table @table@ modify @old-column@ @type@;",
267                                            REWORD_TEMPLATE, template);
268                            }
269                            else if (line.indexOf(DROP_INDEX) != -1) {
270                                    String[] tokens = StringUtil.split(line, ' ');
271    
272                                    line = StringUtil.replace(
273                                            "drop index @index@;", "@index@", tokens[2]);
274                            }
275    
276                            sb.append(line);
277                            sb.append("\n");
278                    }
279    
280                    unsyncBufferedReader.close();
281    
282                    return sb.toString();
283            }
284    
285            private void _convertToOracleCSV(String line, StringBundler sb) {
286                    int x = line.indexOf("values (");
287                    int y = line.lastIndexOf(");");
288    
289                    line = line.substring(x + 8, y);
290    
291                    line = StringUtil.replace(line, "sysdate, ", "20050101, ");
292    
293                    sb.append(line);
294                    sb.append("\n");
295            }
296    
297            private String _postBuildSQL(String template) throws IOException {
298                    template = removeLongInserts(template);
299                    template = StringUtil.replace(template, "\\n", "'||CHR(10)||'");
300    
301                    return template;
302            }
303    
304            private String _preBuildSQL(String template) throws IOException {
305                    template = convertTimestamp(template);
306                    template = replaceTemplate(template, getTemplate());
307    
308                    template = reword(template);
309                    template = StringUtil.replace(
310                            template,
311                            new String[] {"\\\\", "\\'", "\\\""},
312                            new String[] {"\\", "''", "\""});
313    
314                    return template;
315            }
316    
317            private static final String[] _ORACLE = {
318                    "--", "1", "0",
319                    "to_date('1970-01-01 00:00:00','YYYY-MM-DD HH24:MI:SS')", "sysdate",
320                    " blob", " blob", " number(1, 0)", " timestamp", " number(30,20)",
321                    " number(30,0)", " number(30,0)", " varchar2(4000)", " clob",
322                    " varchar2", "", "commit"
323            };
324    
325            private static final boolean _SUPPORTS_INLINE_DISTINCT = false;
326    
327            private static OracleDB _instance = new OracleDB();
328    
329            private static Pattern _varcharPattern = Pattern.compile(
330                    "VARCHAR(\\(\\d+\\))");
331    
332    }