01: /*
02: * Distributed as part of c3p0 v.0.9.1.2
03: *
04: * Copyright (C) 2005 Machinery For Change, Inc.
05: *
06: * Author: Steve Waldman <swaldman@mchange.com>
07: *
08: * This library is free software; you can redistribute it and/or modify
09: * it under the terms of the GNU Lesser General Public License version 2.1, as
10: * published by the Free Software Foundation.
11: *
12: * This software is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15: * GNU Lesser General Public License for more details.
16: *
17: * You should have received a copy of the GNU Lesser General Public License
18: * along with this software; see the file LICENSE. If not, write to the
19: * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
20: * Boston, MA 02111-1307, USA.
21: */
22:
23: package com.mchange.v1.util;
24:
25: import com.mchange.v2.log.*;
26:
27: public final class ClosableResourceUtils {
28: private final static MLogger logger = MLog
29: .getLogger(ClosableResourceUtils.class);
30:
31: /**
32: * attempts to close the specified resource,
33: * logging any exception or failure, but allowing
34: * control flow to proceed normally regardless.
35: */
36: public static Exception attemptClose(ClosableResource cr) {
37: try {
38: if (cr != null)
39: cr.close();
40: return null;
41: } catch (Exception e) {
42: //e.printStackTrace();
43: if (logger.isLoggable(MLevel.WARNING))
44: logger.log(MLevel.WARNING,
45: "CloseableResource close FAILED.", e);
46: return e;
47: }
48: }
49:
50: private ClosableResourceUtils() {
51: }
52: }
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