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Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
ModifiedOnlyDispatcher.java | 100% | 100% | 100% | 100% |
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1 | /* | |
2 | * Copyright (c) 2001-2009, Jean Tessier | |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * | |
9 | * * Redistributions of source code must retain the above copyright | |
10 | * notice, this list of conditions and the following disclaimer. | |
11 | * | |
12 | * * Redistributions in binary form must reproduce the above copyright | |
13 | * notice, this list of conditions and the following disclaimer in the | |
14 | * documentation and/or other materials provided with the distribution. | |
15 | * | |
16 | * * Neither the name of Jean Tessier nor the names of his contributors | |
17 | * may be used to endorse or promote products derived from this software | |
18 | * without specific prior written permission. | |
19 | * | |
20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR | |
24 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
25 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
26 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
27 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
28 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
29 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | |
30 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
31 | */ | |
32 | ||
33 | package com.jeantessier.classreader; | |
34 | ||
35 | import java.io.*; | |
36 | import java.util.*; | |
37 | ||
38 | import org.apache.log4j.*; | |
39 | ||
40 | public class ModifiedOnlyDispatcher implements ClassfileLoaderDispatcher { | |
41 | private ClassfileLoaderDispatcher delegate; | |
42 | ||
43 | private Map<String, Long> timestamps = new HashMap<String, Long>(); | |
44 | ||
45 | 13 | public ModifiedOnlyDispatcher(ClassfileLoaderDispatcher delegate) { |
46 | 13 | this.delegate = delegate; |
47 | } | |
48 | ||
49 | 32 | public ClassfileLoaderAction dispatch(String filename) { |
50 | 32 | ClassfileLoaderAction result = delegate.dispatch(filename); |
51 | ||
52 | 32 | if (result == ClassfileLoaderAction.CLASS) { |
53 | 25 | Long timestamp = timestamps.get(filename); |
54 | 25 | Logger.getLogger(getClass()).debug(filename + " has timestamp " + timestamp); |
55 | ||
56 | 25 | File file = new File(filename); |
57 | 25 | if (timestamp != null && timestamp >= file.lastModified()) { |
58 | 5 | Logger.getLogger(getClass()).debug("Already dispatched \"" + filename + "\": IGNORE"); |
59 | 5 | result = ClassfileLoaderAction.IGNORE; |
60 | } else { | |
61 | 20 | Logger.getLogger(getClass()).debug("Delegating ..."); |
62 | 20 | timestamp = file.lastModified(); |
63 | 20 | timestamps.put(filename, timestamp); |
64 | } | |
65 | } else { | |
66 | 7 | Logger.getLogger(getClass()).debug("Delegating ..."); |
67 | } | |
68 | ||
69 | 32 | return result; |
70 | } | |
71 | } |
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