001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package org.apache.commons.monitoring.jdbc;
018    
019    import org.apache.commons.monitoring.Role;
020    import org.apache.commons.monitoring.counters.Counter;
021    import org.apache.commons.monitoring.repositories.Repository;
022    import org.apache.commons.monitoring.stopwatches.StopWatch;
023    
024    import java.lang.reflect.InvocationTargetException;
025    import java.lang.reflect.Method;
026    import java.sql.PreparedStatement;
027    
028    /**
029     * @author ndeloof
030     */
031    public class MonitoredPreparedStatement extends MonitoredStatement {
032        private final PreparedStatement statement;
033        private final String sql;
034    
035        public MonitoredPreparedStatement(final PreparedStatement statement, final String sql) {
036            super(statement);
037            this.statement = statement;
038            this.sql = sql;
039        }
040    
041        @Override
042        public Object invoke(final Object proxy, final Method method, final Object[] args) throws Throwable {
043            final String name = method.getName();
044            if ((args == null || args.length == 0) && name.startsWith("execute")) {
045                final StopWatch stopWatch = Repository.INSTANCE.start(Repository.INSTANCE.getCounter(new Counter.Key(Role.JDBC, sql)));
046                try {
047                    return method.invoke(statement, args);
048                } catch (final InvocationTargetException e) {
049                    throw extractSQLException(e);
050                } finally {
051                    stopWatch.stop();
052                }
053            }
054            return super.invoke(proxy, method, args);
055        }
056    
057    }