/
SqliteSymmetricDialect.java
161 lines (137 loc) · 6.27 KB
/
SqliteSymmetricDialect.java
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
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
/**
* Licensed to JumpMind Inc under one or more contributor
* license agreements. See the NOTICE file distributed
* with this work for additional information regarding
* copyright ownership. JumpMind Inc licenses this file
* to you under the GNU General Public License, version 3.0 (GPLv3)
* (the "License"); you may not use this file except in compliance
* with the License.
*
* You should have received a copy of the GNU General Public License,
* version 3.0 (GPLv3) along with this library; if not, see
* <http://www.gnu.org/licenses/>.
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.jumpmind.symmetric.db.sqlite;
import static org.apache.commons.lang.StringUtils.isBlank;
import org.jumpmind.db.model.Table;
import org.jumpmind.db.platform.IDatabasePlatform;
import org.jumpmind.db.sql.ISqlTransaction;
import org.jumpmind.db.sql.SqlException;
import org.jumpmind.db.util.BinaryEncoding;
import org.jumpmind.symmetric.SymmetricException;
import org.jumpmind.symmetric.common.ParameterConstants;
import org.jumpmind.symmetric.common.TableConstants;
import org.jumpmind.symmetric.db.AbstractSymmetricDialect;
import org.jumpmind.symmetric.service.IContextService;
import org.jumpmind.symmetric.service.IParameterService;
import org.jumpmind.util.AppUtils;
public class SqliteSymmetricDialect extends AbstractSymmetricDialect {
static final String SYNC_TRIGGERS_DISABLED_USER_VARIABLE = "sync_triggers_disabled";
static final String SYNC_TRIGGERS_DISABLED_NODE_VARIABLE = "sync_node_disabled";
IContextService contextService;
String sqliteFunctionToOverride;
public SqliteSymmetricDialect(IParameterService parameterService, IDatabasePlatform platform) {
super(parameterService, platform);
this.triggerTemplate = new SqliteTriggerTemplate(this);
sqliteFunctionToOverride = parameterService.getString(ParameterConstants.SQLITE_TRIGGER_FUNCTION_TO_USE);
}
public void setContextService(IContextService contextService) {
this.contextService = contextService;
}
@Override
public void createRequiredDatabaseObjects() {
}
@Override
public void dropRequiredDatabaseObjects() {
}
public void cleanDatabase() {
}
protected void setSqliteFunctionResult(ISqlTransaction transaction, final String name, final String result) {
}
public void disableSyncTriggers(ISqlTransaction transaction, String nodeId) {
if (isBlank(sqliteFunctionToOverride)) {
if (contextService == null) {
throw new SymmetricException("contextService can't be null by this point. "
+ "Please provide a non-null contextService before using this functionality.");
}
contextService.insert(transaction, SYNC_TRIGGERS_DISABLED_USER_VARIABLE, "1");
if (nodeId != null) {
contextService.insert(transaction, SYNC_TRIGGERS_DISABLED_NODE_VARIABLE, nodeId);
}
} else {
String node = nodeId != null ? ":" + nodeId : "";
setSqliteFunctionResult(transaction, sqliteFunctionToOverride, "DISABLED" + node);
}
}
public void enableSyncTriggers(ISqlTransaction transaction) {
if (isBlank(sqliteFunctionToOverride)) {
if (contextService == null) {
throw new SymmetricException("contextService can't be null by this point. "
+ "Please provide a non-null contextService before using this functionality.");
}
contextService.delete(transaction, SYNC_TRIGGERS_DISABLED_USER_VARIABLE);
contextService.delete(transaction, SYNC_TRIGGERS_DISABLED_NODE_VARIABLE);
} else {
setSqliteFunctionResult(transaction, sqliteFunctionToOverride, "ENABLED");
}
}
public String getSyncTriggersExpression() {
if (isBlank(sqliteFunctionToOverride)) {
String contextTableName = parameterService.getTablePrefix() + "_" + TableConstants.SYM_CONTEXT;
return "(not exists (select value from " + contextTableName + " where id = '" + SYNC_TRIGGERS_DISABLED_USER_VARIABLE + "'))";
} else {
return "(" + sqliteFunctionToOverride + "() not like 'DISABLED%')";
}
}
protected boolean doesTriggerExistOnPlatform(String catalogName, String schema, String tableName, String triggerName) {
return platform.getSqlTemplate().queryForInt(
"select count(*) from sqlite_master where type='trigger' and name=? and tbl_name=?", triggerName, tableName) > 0;
}
public BinaryEncoding getBinaryEncoding() {
return BinaryEncoding.HEX;
}
public boolean isBlobSyncSupported() {
return true;
}
public boolean isClobSyncSupported() {
return true;
}
public boolean isTransactionIdOverrideSupported() {
return false;
}
@Override
public void truncateTable(String tableName) {
String quote = platform.getDdlBuilder().isDelimitedIdentifierModeOn() ? platform
.getDatabaseInfo().getDelimiterToken() : "";
boolean success = false;
int tryCount = 5;
while (!success && tryCount > 0) {
try {
Table table = platform.getTableFromCache(tableName, false);
if (table != null) {
platform.getSqlTemplate().update(
String.format("delete from %s%s%s", quote, table.getName(), quote));
success = true;
} else {
throw new RuntimeException(String.format("Could not find %s to trunate",
tableName));
}
} catch (SqlException ex) {
log.warn("Failed to truncate the " + tableName + " table", ex);
AppUtils.sleep(5000);
tryCount--;
}
}
}
@Override
public boolean canGapsOccurInCapturedDataIds() {
return false;
}
}