001
014
015 package com.liferay.portal.dao.db;
016
017 import com.liferay.portal.kernel.dao.db.Index;
018 import com.liferay.portal.kernel.dao.jdbc.DataAccess;
019 import com.liferay.portal.kernel.io.unsync.UnsyncBufferedReader;
020 import com.liferay.portal.kernel.io.unsync.UnsyncStringReader;
021 import com.liferay.portal.kernel.util.GetterUtil;
022 import com.liferay.portal.kernel.util.StringBundler;
023 import com.liferay.portal.kernel.util.StringUtil;
024 import com.liferay.portal.util.PropsValues;
025
026 import java.io.IOException;
027
028 import java.sql.Connection;
029 import java.sql.PreparedStatement;
030 import java.sql.ResultSet;
031 import java.sql.SQLException;
032
033 import java.util.ArrayList;
034 import java.util.List;
035
036
041 public class MySQLDB extends BaseDB {
042
043 public MySQLDB(int majorVersion, int minorVersion) {
044 super(TYPE_MYSQL, majorVersion, minorVersion);
045 }
046
047 @Override
048 public String buildSQL(String template) throws IOException {
049 template = convertTimestamp(template);
050 template = replaceTemplate(template, getTemplate());
051
052 template = reword(template);
053 template = StringUtil.replace(template, "\\'", "''");
054
055 return template;
056 }
057
058 @Override
059 public List<Index> getIndexes(Connection con) throws SQLException {
060 List<Index> indexes = new ArrayList<>();
061
062 PreparedStatement ps = null;
063 ResultSet rs = null;
064
065 try {
066 StringBundler sb = new StringBundler(4);
067
068 sb.append("select distinct(index_name), table_name, non_unique ");
069 sb.append("from information_schema.statistics where ");
070 sb.append("index_schema = database() and (index_name like ");
071 sb.append("'LIFERAY_%' or index_name like 'IX_%')");
072
073 String sql = sb.toString();
074
075 ps = con.prepareStatement(sql);
076
077 rs = ps.executeQuery();
078
079 while (rs.next()) {
080 String indexName = rs.getString("index_name");
081 String tableName = rs.getString("table_name");
082 boolean unique = !rs.getBoolean("non_unique");
083
084 indexes.add(new Index(indexName, tableName, unique));
085 }
086 }
087 finally {
088 DataAccess.cleanUp(null, ps, rs);
089 }
090
091 return indexes;
092 }
093
094 @Override
095 public boolean isSupportsUpdateWithInnerJoin() {
096 return _SUPPORTS_UPDATE_WITH_INNER_JOIN;
097 }
098
099 @Override
100 protected String buildCreateFileContent(
101 String sqlDir, String databaseName, int population)
102 throws IOException {
103
104 StringBundler sb = new StringBundler(14);
105
106 sb.append("drop database if exists ");
107 sb.append(databaseName);
108 sb.append(";\n");
109 sb.append("create database ");
110 sb.append(databaseName);
111 sb.append(" character set utf8;\n");
112
113 if (population != BARE) {
114 sb.append("use ");
115 sb.append(databaseName);
116 sb.append(";\n\n");
117
118 String suffix = getSuffix(population);
119
120 sb.append(getCreateTablesContent(sqlDir, suffix));
121 sb.append("\n\n");
122 sb.append(readFile(sqlDir + "/indexes/indexes-mysql.sql"));
123 sb.append("\n\n");
124 sb.append(readFile(sqlDir + "/sequences/sequences-mysql.sql"));
125 }
126
127 return sb.toString();
128 }
129
130 @Override
131 protected String getServerName() {
132 return "mysql";
133 }
134
135 @Override
136 protected String[] getTemplate() {
137 if (GetterUtil.getFloat(getVersionString()) >= 5.6F) {
138 _MYSQL[8] = " datetime(6)";
139 }
140
141 return _MYSQL;
142 }
143
144 @Override
145 protected String reword(String data) throws IOException {
146 try (UnsyncBufferedReader unsyncBufferedReader =
147 new UnsyncBufferedReader(new UnsyncStringReader(data))) {
148
149 StringBundler sb = new StringBundler();
150
151 boolean createTable = false;
152
153 String line = null;
154
155 while ((line = unsyncBufferedReader.readLine()) != null) {
156 if (StringUtil.startsWith(line, "create table")) {
157 createTable = true;
158 }
159 else if (line.startsWith(ALTER_COLUMN_NAME)) {
160 String[] template = buildColumnNameTokens(line);
161
162 line = StringUtil.replace(
163 "alter table @table@ change column @old-column@ " +
164 "@new-column@ @type@;",
165 REWORD_TEMPLATE, template);
166 }
167 else if (line.startsWith(ALTER_COLUMN_TYPE)) {
168 String[] template = buildColumnTypeTokens(line);
169
170 line = StringUtil.replace(
171 "alter table @table@ modify @old-column@ @type@;",
172 REWORD_TEMPLATE, template);
173 }
174 else if (line.startsWith(ALTER_TABLE_NAME)) {
175 String[] template = buildTableNameTokens(line);
176
177 line = StringUtil.replace(
178 "rename table @old-table@ to @new-table@;",
179 RENAME_TABLE_TEMPLATE, template);
180 }
181
182 int pos = line.indexOf(";");
183
184 if (createTable && (pos != -1)) {
185 createTable = false;
186
187 line =
188 line.substring(0, pos) + " engine " +
189 PropsValues.DATABASE_MYSQL_ENGINE + line.substring(pos);
190 }
191
192 sb.append(line);
193 sb.append("\n");
194 }
195
196 return sb.toString();
197 }
198 }
199
200 private static final String[] _MYSQL = {
201 "##", "1", "0", "'1970-01-01'", "now()", " longblob", " longblob",
202 " tinyint", " datetime", " double", " integer", " bigint", " longtext",
203 " longtext", " varchar", " auto_increment", "commit"
204 };
205
206 private static final boolean _SUPPORTS_UPDATE_WITH_INNER_JOIN = true;
207
208 }