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
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.apache.qpid.server.store.berkeleydb;
import java.io.File;
import java.util.HashMap;
import java.util.Map;
import org.apache.log4j.Logger;
import com.sleepycat.je.Database;
import com.sleepycat.je.DatabaseConfig;
import com.sleepycat.je.DatabaseException;
import com.sleepycat.je.Environment;
import com.sleepycat.je.EnvironmentConfig;
public class StandardEnvironmentFacade implements EnvironmentFacade
{
private static final Logger LOGGER = Logger.getLogger(StandardEnvironmentFacade.class);
public static final String TYPE = "BDB";
private final String _storePath;
private final Map<String, Database> _databases = new HashMap<String, Database>();
private Environment _environment;
public StandardEnvironmentFacade(String storePath, Map<String, String> attributes)
{
_storePath = storePath;
if (LOGGER.isInfoEnabled())
{
LOGGER.info("Creating environment at environment path " + _storePath);
}
File environmentPath = new File(storePath);
if (!environmentPath.exists())
{
if (!environmentPath.mkdirs())
{
throw new IllegalArgumentException("Environment path " + environmentPath + " could not be read or created. "
+ "Ensure the path is correct and that the permissions are correct.");
}
}
EnvironmentConfig envConfig = new EnvironmentConfig();
envConfig.setAllowCreate(true);
envConfig.setTransactional(true);
for (Map.Entry<String, String> configItem : attributes.entrySet())
{
LOGGER.debug("Setting EnvironmentConfig key " + configItem.getKey() + " to '" + configItem.getValue() + "'");
envConfig.setConfigParam(configItem.getKey(), configItem.getValue());
}
envConfig.setExceptionListener(new LoggingAsyncExceptionListener());
_environment = new Environment(environmentPath, envConfig);
}
@Override
public void commit(com.sleepycat.je.Transaction tx)
{
try
{
tx.commitNoSync();
}
catch (DatabaseException de)
{
LOGGER.error("Got DatabaseException on commit, closing environment", de);
closeEnvironmentSafely();
throw handleDatabaseException("Got DatabaseException on commit", de);
}
}
@Override
public void close()
{
closeDatabases();
closeEnvironment();
}
private void closeDatabases()
{
RuntimeException firstThrownException = null;
for (Database database : _databases.values())
{
try
{
database.close();
}
catch(RuntimeException e)
{
if (firstThrownException == null)
{
firstThrownException = e;
}
}
}
if (firstThrownException != null)
{
throw firstThrownException;
}
}
private void closeEnvironmentSafely()
{
if (_environment != null)
{
if (_environment.isValid())
{
try
{
closeDatabases();
}
catch(Exception e)
{
LOGGER.error("Exception closing environment databases", e);
}
}
try
{
_environment.close();
}
catch (DatabaseException ex)
{
LOGGER.error("Exception closing store environment", ex);
}
catch (IllegalStateException ex)
{
LOGGER.error("Exception closing store environment", ex);
}
finally
{
_environment = null;
}
}
}
@Override
public Environment getEnvironment()
{
return _environment;
}
private void closeEnvironment()
{
if (_environment != null)
{
// Clean the log before closing. This makes sure it doesn't contain
// redundant data. Closing without doing this means the cleaner may
// not get a chance to finish.
try
{
_environment.cleanLog();
}
finally
{
_environment.close();
_environment = null;
}
}
}
@Override
public DatabaseException handleDatabaseException(String contextMessage, DatabaseException e)
{
if (_environment != null && !_environment.isValid())
{
closeEnvironmentSafely();
}
return e;
}
@Override
public void openDatabases(DatabaseConfig dbConfig, String... databaseNames)
{
for (String databaseName : databaseNames)
{
Database database = _environment.openDatabase(null, databaseName, dbConfig);
_databases .put(databaseName, database);
}
}
@Override
public Database getOpenDatabase(String name)
{
Database database = _databases.get(name);
if (database == null)
{
throw new IllegalArgumentException("Database with name '" + name + "' has not been opened");
}
return database;
}
@Override
public Committer createCommitter(String name)
{
return new CoalescingCommiter(name, this);
}
@Override
public String getStoreLocation()
{
return _storePath;
}
}
|
