1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
/*
* SonarQube, open source software quality management tool.
* Copyright (C) 2008-2014 SonarSource
* mailto:contact AT sonarsource DOT com
*
* SonarQube is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* SonarQube is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.db.version;
import com.google.common.base.CharMatcher;
import com.google.common.base.Preconditions;
import java.util.List;
import javax.annotation.CheckForNull;
import javax.annotation.Nullable;
import org.sonar.db.dialect.Dialect;
import org.sonar.db.dialect.MsSql;
import org.sonar.db.dialect.Oracle;
import org.sonar.db.dialect.PostgreSql;
import static com.google.common.collect.Lists.newArrayList;
public class AddColumnsBuilder {
private final Dialect dialect;
private final String tableName;
private List<ColumnDef> columnDefs = newArrayList();
public AddColumnsBuilder(Dialect dialect, String tableName) {
this.tableName = tableName;
this.dialect = dialect;
}
public AddColumnsBuilder addColumn(ColumnDef columnDef) {
columnDefs.add(columnDef);
return this;
}
public String build() {
StringBuilder sql = new StringBuilder().append("ALTER TABLE ").append(tableName).append(" ");
switch (dialect.getId()) {
case PostgreSql.ID:
addColumns(sql, "ADD COLUMN ");
break;
case MsSql.ID:
sql.append("ADD ");
addColumns(sql, "");
break;
default:
sql.append("ADD (");
addColumns(sql, "");
sql.append(")");
}
return sql.toString();
}
private void addColumns(StringBuilder sql, String columnPrefix) {
for (int i = 0; i < columnDefs.size(); i++) {
sql.append(columnPrefix);
addColumn(sql, columnDefs.get(i));
if (i < columnDefs.size() - 1) {
sql.append(", ");
}
}
}
private void addColumn(StringBuilder sql, ColumnDef columnDef) {
sql.append(columnDef.getName()).append(" ").append(typeToSql(columnDef));
Integer limit = columnDef.getLimit();
if (limit != null) {
sql.append(" (").append(Integer.toString(limit)).append(")");
}
sql.append(columnDef.isNullable() ? " NULL" : " NOT NULL");
}
private String typeToSql(ColumnDef columnDef) {
switch (columnDef.getType()) {
case STRING:
return "VARCHAR";
case BIG_INTEGER:
return !dialect.getId().equals(Oracle.ID) ? "BIGINT" : "NUMBER (38)";
default:
throw new IllegalArgumentException("Unsupported type : " + columnDef.getType());
}
}
public static class ColumnDef {
private String name;
private Type type;
private boolean isNullable;
private Integer limit;
public enum Type {
STRING, BIG_INTEGER
}
public ColumnDef setNullable(boolean isNullable) {
this.isNullable = isNullable;
return this;
}
public ColumnDef setLimit(@Nullable Integer limit) {
this.limit = limit;
return this;
}
public ColumnDef setName(String name) {
Preconditions.checkArgument(CharMatcher.JAVA_LOWER_CASE.or(CharMatcher.anyOf("_")).matchesAllOf(name), "Column name should only contains lowercase and _ characters");
this.name = name;
return this;
}
public ColumnDef setType(Type type) {
this.type = type;
return this;
}
public boolean isNullable() {
return isNullable;
}
@CheckForNull
public Integer getLimit() {
return limit;
}
public String getName() {
return name;
}
public Type getType() {
return type;
}
}
}
|
