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.io.unsync.UnsyncBufferedReader;
019 import com.liferay.portal.kernel.io.unsync.UnsyncStringReader;
020 import com.liferay.portal.kernel.util.StringBundler;
021 import com.liferay.portal.kernel.util.StringUtil;
022
023 import java.io.IOException;
024
025
030 public class HypersonicDB extends BaseDB {
031
032 public static DB getInstance() {
033 return _instance;
034 }
035
036 @Override
037 public String buildSQL(String template) throws IOException {
038 template = convertTimestamp(template);
039 template = replaceTemplate(template, getTemplate());
040
041 template = reword(template);
042 template = StringUtil.replace(template, "\\'", "''");
043
044 return template;
045 }
046
047 protected HypersonicDB() {
048 super(TYPE_HYPERSONIC);
049 }
050
051 @Override
052 protected String buildCreateFileContent(
053 String sqlDir, String databaseName, int population) {
054
055 return null;
056 }
057
058 @Override
059 protected String getServerName() {
060 return "hypersonic";
061 }
062
063 @Override
064 protected String[] getTemplate() {
065 return _HYPERSONIC;
066 }
067
068 @Override
069 protected String reword(String data) throws IOException {
070 UnsyncBufferedReader unsyncBufferedReader = new UnsyncBufferedReader(
071 new UnsyncStringReader(data));
072
073 StringBundler sb = new StringBundler();
074
075 String line = null;
076
077 while ((line = unsyncBufferedReader.readLine()) != null) {
078 if (line.startsWith(ALTER_COLUMN_NAME)) {
079 String[] template = buildColumnNameTokens(line);
080
081 line = StringUtil.replace(
082 "alter table @table@ alter column @old-column@ rename to " +
083 "@new-column@;",
084 REWORD_TEMPLATE, template);
085 }
086 else if (line.startsWith(ALTER_COLUMN_TYPE)) {
087 String[] template = buildColumnTypeTokens(line);
088
089 line = StringUtil.replace(
090 "alter table @table@ alter column @old-column@ @type@ " +
091 "@nullable@;",
092 REWORD_TEMPLATE, template);
093 }
094 else if (line.startsWith(ALTER_TABLE_NAME)) {
095 String[] template = buildTableNameTokens(line);
096
097 line = StringUtil.replace(
098 "alter table @old-table@ rename to @new-table@;",
099 RENAME_TABLE_TEMPLATE, template);
100 }
101 else if (line.contains(DROP_INDEX)) {
102 String[] tokens = StringUtil.split(line, ' ');
103
104 line = StringUtil.replace(
105 "drop index @index@;", "@index@", tokens[2]);
106 }
107
108 sb.append(line);
109 sb.append("\n");
110 }
111
112 unsyncBufferedReader.close();
113
114 return sb.toString();
115 }
116
117 private static final String[] _HYPERSONIC = {
118 "
119 " blob", " bit", " timestamp", " double", " int", " bigint",
120 " longvarchar", " longvarchar", " varchar", "", "commit"
121 };
122
123 private static HypersonicDB _instance = new HypersonicDB();
124
125 }