1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.log4j.db;
19
20 import org.apache.log4j.spi.LoggingEvent;
21
22 import java.sql.Connection;
23 import java.sql.SQLException;
24 import java.sql.Statement;
25 import java.util.Set;
26
27 /**
28 * @author Ceki Gülcü
29 */
30 public class DBHelper {
31
32 public final static short PROPERTIES_EXIST = 0x01;
33 public final static short EXCEPTION_EXISTS = 0x02;
34
35 public static short computeReferenceMask(LoggingEvent event) {
36 short mask = 0;
37 Set propertiesKeys = event.getPropertyKeySet();
38 if (propertiesKeys.size() > 0) {
39 mask = PROPERTIES_EXIST;
40 }
41 String[] strRep = event.getThrowableStrRep();
42 if (strRep != null) {
43 mask |= EXCEPTION_EXISTS;
44 }
45 return mask;
46 }
47
48 static public void closeConnection(Connection connection) {
49 if (connection != null) {
50 try {
51 connection.close();
52 } catch (SQLException sqle) {
53 // static utility classes should not log without an explicit repository
54 // reference
55 }
56 }
57 }
58
59 public static void closeStatement(Statement statement) {
60 if (statement != null) {
61 try {
62 statement.close();
63 } catch (SQLException sqle) {
64 }
65 }
66 }
67 }