001
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.StringBundler;
024 import com.liferay.portal.kernel.util.StringUtil;
025
026 import java.io.IOException;
027
028 import java.sql.Connection;
029 import java.sql.DatabaseMetaData;
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
037
042 public class SQLServerDB extends BaseDB {
043
044 public static DB getInstance() {
045 return _instance;
046 }
047
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, "\ngo;\n", "\ngo\n");
054 template = StringUtil.replace(
055 template,
056 new String[] {"\\\\", "\\'", "\\\"", "\\n", "\\r"},
057 new String[] {"\\", "''", "\"", "\n", "\r"});
058
059 return template;
060 }
061
062 public List<Index> getIndexes() throws SQLException {
063 List<Index> indexes = new ArrayList<Index>();
064
065 Connection con = null;
066 PreparedStatement ps = null;
067 ResultSet rs = null;
068
069 try {
070 con = DataAccess.getConnection();
071
072 DatabaseMetaData metaData = con.getMetaData();
073
074 if (metaData.getDatabaseMajorVersion() <= _SQL_SERVER_2000) {
075 return null;
076 }
077
078 StringBundler sb = new StringBundler(6);
079
080 sb.append("select sys.tables.name as table_name, ");
081 sb.append("sys.indexes.name as index_name, is_unique from ");
082 sb.append("sys.indexes inner join sys.tables on ");
083 sb.append("sys.tables.object_id = sys.indexes.object_id where ");
084 sb.append("sys.indexes.name like 'LIFERAY_%' or sys.indexes.name ");
085 sb.append("like 'IX_%'");
086
087 String sql = sb.toString();
088
089 ps = con.prepareStatement(sql);
090
091 rs = ps.executeQuery();
092
093 while (rs.next()) {
094 String indexName = rs.getString("index_name");
095 String tableName = rs.getString("table_name");
096 boolean unique = !rs.getBoolean("is_unique");
097
098 indexes.add(new Index(indexName, tableName, unique));
099 }
100 }
101 finally {
102 DataAccess.cleanUp(con, ps, rs);
103 }
104
105 return indexes;
106 }
107
108 public boolean isSupportsAlterColumnType() {
109 return _SUPPORTS_ALTER_COLUMN_TYPE;
110 }
111
112 protected SQLServerDB() {
113 super(TYPE_SQLSERVER);
114 }
115
116 protected String buildCreateFileContent(
117 String sqlDir, String databaseName, int population)
118 throws IOException {
119
120 String suffix = getSuffix(population);
121
122 StringBundler sb = new StringBundler(17);
123
124 sb.append("drop database ");
125 sb.append(databaseName);
126 sb.append(";\n");
127 sb.append("create database ");
128 sb.append(databaseName);
129 sb.append(";\n");
130 sb.append("\n");
131 sb.append("go\n");
132 sb.append("\n");
133 sb.append("use ");
134 sb.append(databaseName);
135 sb.append(";\n\n");
136 sb.append(
137 FileUtil.read(
138 sqlDir + "/portal" + suffix + "/portal" + suffix +
139 "-sql-server.sql"));
140 sb.append("\n\n");
141 sb.append(FileUtil.read(sqlDir + "/indexes/indexes-sql-server.sql"));
142 sb.append("\n\n");
143 sb.append(
144 FileUtil.read(sqlDir + "/sequences/sequences-sql-server.sql"));
145
146 return sb.toString();
147 }
148
149 protected String getServerName() {
150 return "sql-server";
151 }
152
153 protected String[] getTemplate() {
154 return _SQL_SERVER;
155 }
156
157 protected String reword(String data) throws IOException {
158 UnsyncBufferedReader unsyncBufferedReader = new UnsyncBufferedReader(
159 new UnsyncStringReader(data));
160
161 StringBundler sb = new StringBundler();
162
163 String line = null;
164
165 while ((line = unsyncBufferedReader.readLine()) != null) {
166 if (line.startsWith(ALTER_COLUMN_NAME)) {
167 String[] template = buildColumnNameTokens(line);
168
169 line = StringUtil.replace(
170 "exec sp_rename '@table@.@old-column@', '@new-column@', " +
171 "'column';",
172 REWORD_TEMPLATE, template);
173 }
174 else if (line.startsWith(ALTER_COLUMN_TYPE)) {
175 String[] template = buildColumnTypeTokens(line);
176
177 line = StringUtil.replace(
178 "alter table @table@ alter column @old-column@ @type@;",
179 REWORD_TEMPLATE, template);
180 }
181
182 sb.append(line);
183 sb.append("\n");
184 }
185
186 unsyncBufferedReader.close();
187
188 return sb.toString();
189 }
190
191 private static String[] _SQL_SERVER = {
192 "--", "1", "0",
193 "'19700101'", "GetDate()",
194 " image", " bit", " datetime",
195 " float", " int", " bigint",
196 " nvarchar(2000)", " ntext", " nvarchar",
197 " identity(1,1)", "go"
198 };
199
200 private static final int _SQL_SERVER_2000 = 8;
201
202 private static boolean _SUPPORTS_ALTER_COLUMN_TYPE;
203
204 private static SQLServerDB _instance = new SQLServerDB();
205
206 }