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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  package org.apache.commons.monitoring.jdbc;
18  
19  import org.apache.commons.monitoring.Role;
20  import org.apache.commons.monitoring.counters.Counter;
21  import org.apache.commons.monitoring.repositories.Repository;
22  import org.apache.commons.monitoring.stopwatches.StopWatch;
23  
24  import java.lang.reflect.InvocationTargetException;
25  import java.lang.reflect.Method;
26  import java.sql.PreparedStatement;
27  
28  /**
29   * @author ndeloof
30   */
31  public class MonitoredPreparedStatement extends MonitoredStatement {
32      private final PreparedStatement statement;
33      private final String sql;
34  
35      public MonitoredPreparedStatement(final PreparedStatement statement, final String sql) {
36          super(statement);
37          this.statement = statement;
38          this.sql = sql;
39      }
40  
41      @Override
42      public Object invoke(final Object proxy, final Method method, final Object[] args) throws Throwable {
43          final String name = method.getName();
44          if ((args == null || args.length == 0) && name.startsWith("execute")) {
45              final StopWatch stopWatch = Repository.INSTANCE.start(Repository.INSTANCE.getCounter(new Counter.Key(Role.JDBC, sql)));
46              try {
47                  return method.invoke(statement, args);
48              } catch (final InvocationTargetException e) {
49                  throw extractSQLException(e);
50              } finally {
51                  stopWatch.stop();
52              }
53          }
54          return super.invoke(proxy, method, args);
55      }
56  
57  }