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.StringBundler;
023 import com.liferay.portal.kernel.util.StringUtil;
024
025 import java.io.IOException;
026
027 import java.sql.Connection;
028 import java.sql.DatabaseMetaData;
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 SQLServerDB extends BaseDB {
042
043 public static DB getInstance() {
044 return _instance;
045 }
046
047 public String buildSQL(String template) throws IOException {
048 template = convertTimestamp(template);
049 template = replaceTemplate(template, getTemplate());
050
051 template = reword(template);
052 template = StringUtil.replace(template, "\ngo;\n", "\ngo\n");
053 template = StringUtil.replace(
054 template,
055 new String[] {"\\\\", "\\'", "\\\"", "\\n", "\\r"},
056 new String[] {"\\", "''", "\"", "\n", "\r"});
057
058 return template;
059 }
060
061 public List<Index> getIndexes() throws SQLException {
062 List<Index> indexes = new ArrayList<Index>();
063
064 Connection con = null;
065 PreparedStatement ps = null;
066 ResultSet rs = null;
067
068 try {
069 con = DataAccess.getConnection();
070
071 DatabaseMetaData metaData = con.getMetaData();
072
073 if (metaData.getDatabaseMajorVersion() <= _SQL_SERVER_2000) {
074 return null;
075 }
076
077 StringBundler sb = new StringBundler(6);
078
079 sb.append("select sys.tables.name as table_name, ");
080 sb.append("sys.indexes.name as index_name, is_unique from ");
081 sb.append("sys.indexes inner join sys.tables on ");
082 sb.append("sys.tables.object_id = sys.indexes.object_id where ");
083 sb.append("sys.indexes.name like 'LIFERAY_%' or sys.indexes.name ");
084 sb.append("like 'IX_%'");
085
086 String sql = sb.toString();
087
088 ps = con.prepareStatement(sql);
089
090 rs = ps.executeQuery();
091
092 while (rs.next()) {
093 String indexName = rs.getString("index_name");
094 String tableName = rs.getString("table_name");
095 boolean unique = !rs.getBoolean("is_unique");
096
097 indexes.add(new Index(indexName, tableName, unique));
098 }
099 }
100 finally {
101 DataAccess.cleanUp(con, ps, rs);
102 }
103
104 return indexes;
105 }
106
107 public boolean isSupportsAlterColumnType() {
108 return _SUPPORTS_ALTER_COLUMN_TYPE;
109 }
110
111 public boolean isSupportsInlineDistinct() {
112 return _SUPPORTS_INLINE_DISTINCT;
113 }
114
115 protected SQLServerDB() {
116 super(TYPE_SQLSERVER);
117 }
118
119 protected String buildCreateFileContent(
120 String sqlDir, String databaseName, int population)
121 throws IOException {
122
123 String suffix = getSuffix(population);
124
125 StringBundler sb = new StringBundler(17);
126
127 sb.append("drop database ");
128 sb.append(databaseName);
129 sb.append(";\n");
130 sb.append("create database ");
131 sb.append(databaseName);
132 sb.append(";\n");
133 sb.append("\n");
134 sb.append("go\n");
135 sb.append("\n");
136 sb.append("use ");
137 sb.append(databaseName);
138 sb.append(";\n\n");
139 sb.append(
140 readFile(
141 sqlDir + "/portal" + suffix + "/portal" + suffix +
142 "-sql-server.sql"));
143 sb.append("\n\n");
144 sb.append(readFile(sqlDir + "/indexes/indexes-sql-server.sql"));
145 sb.append("\n\n");
146 sb.append(readFile(sqlDir + "/sequences/sequences-sql-server.sql"));
147
148 return sb.toString();
149 }
150
151 protected String getServerName() {
152 return "sql-server";
153 }
154
155 protected String[] getTemplate() {
156 return _SQL_SERVER;
157 }
158
159 protected String reword(String data) throws IOException {
160 UnsyncBufferedReader unsyncBufferedReader = new UnsyncBufferedReader(
161 new UnsyncStringReader(data));
162
163 StringBundler sb = new StringBundler();
164
165 String line = null;
166
167 while ((line = unsyncBufferedReader.readLine()) != null) {
168 if (line.startsWith(ALTER_COLUMN_NAME)) {
169 String[] template = buildColumnNameTokens(line);
170
171 line = StringUtil.replace(
172 "exec sp_rename '@table@.@old-column@', '@new-column@', " +
173 "'column';",
174 REWORD_TEMPLATE, template);
175 }
176 else if (line.startsWith(ALTER_COLUMN_TYPE)) {
177 String[] template = buildColumnTypeTokens(line);
178
179 line = StringUtil.replace(
180 "alter table @table@ alter column @old-column@ @type@;",
181 REWORD_TEMPLATE, template);
182 }
183
184 sb.append(line);
185 sb.append("\n");
186 }
187
188 unsyncBufferedReader.close();
189
190 return sb.toString();
191 }
192
193 private static String[] _SQL_SERVER = {
194 "--", "1", "0",
195 "'19700101'", "GetDate()",
196 " image", " bit", " datetime",
197 " float", " int", " bigint",
198 " nvarchar(2000)", " ntext", " nvarchar",
199 " identity(1,1)", "go"
200 };
201
202 private static final int _SQL_SERVER_2000 = 8;
203
204 private static final boolean _SUPPORTS_ALTER_COLUMN_TYPE = false;
205
206 private static final boolean _SUPPORTS_INLINE_DISTINCT = false;
207
208 private static SQLServerDB _instance = new SQLServerDB();
209
210 }