| 1 | /* |
| 2 | Copyright (C) 2002-2004 MySQL AB |
| 3 | |
| 4 | This program is free software; you can redistribute it and/or modify |
| 5 | it under the terms of version 2 of the GNU General Public License as |
| 6 | published by the Free Software Foundation. |
| 7 | |
| 8 | There are special exceptions to the terms and conditions of the GPL |
| 9 | as it is applied to this software. View the full text of the |
| 10 | exception in file EXCEPTIONS-CONNECTOR-J in the directory of this |
| 11 | software distribution. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program; if not, write to the Free Software |
| 20 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 21 | |
| 22 | |
| 23 | |
| 24 | */ |
| 25 | package com.mysql.jdbc.profiler; |
| 26 | |
| 27 | import com.mysql.jdbc.Connection; |
| 28 | import com.mysql.jdbc.log.Log; |
| 29 | |
| 30 | import java.sql.SQLException; |
| 31 | import java.util.HashMap; |
| 32 | import java.util.Map; |
| 33 | |
| 34 | /** |
| 35 | * @author mmatthew |
| 36 | */ |
| 37 | public class ProfileEventSink { |
| 38 | |
| 39 | private static final Map CONNECTIONS_TO_SINKS = new HashMap(); |
| 40 | |
| 41 | private Connection ownerConnection = null; |
| 42 | |
| 43 | private Log log = null; |
| 44 | |
| 45 | /** |
| 46 | * Returns the ProfileEventSink that handles profiler events for the given |
| 47 | * connection. |
| 48 | * |
| 49 | * @param conn |
| 50 | * the connection to handle events for |
| 51 | * @return the ProfileEventSink that handles profiler events |
| 52 | */ |
| 53 | public static synchronized ProfileEventSink getInstance(Connection conn) { |
| 54 | ProfileEventSink sink = (ProfileEventSink) CONNECTIONS_TO_SINKS |
| 55 | .get(conn); |
| 56 | |
| 57 | if (sink == null) { |
| 58 | sink = new ProfileEventSink(conn); |
| 59 | CONNECTIONS_TO_SINKS.put(conn, sink); |
| 60 | } |
| 61 | |
| 62 | return sink; |
| 63 | } |
| 64 | |
| 65 | /** |
| 66 | * Process a profiler event |
| 67 | * |
| 68 | * @param evt |
| 69 | * the event to process |
| 70 | */ |
| 71 | public void consumeEvent(ProfilerEvent evt) { |
| 72 | if (evt.eventType == ProfilerEvent.TYPE_WARN) { |
| 73 | this.log.logWarn(evt); |
| 74 | } else { |
| 75 | this.log.logInfo(evt); |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | private ProfileEventSink(Connection conn) { |
| 80 | this.ownerConnection = conn; |
| 81 | |
| 82 | try { |
| 83 | this.log = this.ownerConnection.getLog(); |
| 84 | } catch (SQLException sqlEx) { |
| 85 | throw new RuntimeException("Unable to get logger from connection"); |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | } |