01: /*
02: * @(#)MinDirChannelLoggerFactory.java
03: *
04: * Copyright (C) 2003 Matt Albrecht
05: * groboclown@users.sourceforge.net
06: * http://groboutils.sourceforge.net
07: *
08: * Permission is hereby granted, free of charge, to any person obtaining a
09: * copy of this software and associated documentation files (the "Software"),
10: * to deal in the Software without restriction, including without limitation
11: * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12: * and/or sell copies of the Software, and to permit persons to whom the
13: * Software is furnished to do so, subject to the following conditions:
14: *
15: * The above copyright notice and this permission notice shall be included in
16: * all copies or substantial portions of the Software.
17: *
18: * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19: * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20: * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21: * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22: * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
23: * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
24: * DEALINGS IN THE SOFTWARE.
25: */
26:
27: package net.sourceforge.groboutils.codecoverage.v2.logger;
28:
29: import java.io.File;
30: import java.util.Properties;
31:
32: import net.sourceforge.groboutils.codecoverage.v2.IChannelLogger;
33: import net.sourceforge.groboutils.codecoverage.v2.IChannelLoggerFactory;
34:
35: /**
36: * The singleton invoked at runtime to log each marked bytecode instruction
37: * covered.
38: * <P>
39: * This class needs to be fast, efficient, thread-safe, and classloader-safe.
40: * "Classloader-safe" means that it needs to be resiliant to multiple instances
41: * of this class being loaded, and possibly interfering with each other.
42: *
43: * @author Matt Albrecht <a href="mailto:groboclown@users.sourceforge.net">groboclown@users.sourceforge.net</a>
44: * @version $Date: 2003/12/03 22:17:31 $
45: * @since December 3, 2003
46: */
47: public class MinDirChannelLoggerFactory implements
48: IChannelLoggerFactory {
49: public static final String DIRECTORY_PROPERTY = "dir";
50: public static final String DEFAULT_DIRECTORY = "./.cover-logs";
51:
52: /**
53: * Creates a specific logger type. Initializes the logger based on the
54: * given collection of properties.
55: *
56: * @param propertyPrefix the prefix that all logger properties will begin
57: * with. Expect all logger-specific properties to be appended directly
58: * to this string.
59: * @param props the property collection to pull the logger properties from.
60: * @param channelIndex channel number to log to.
61: * @return the initialized logger.
62: */
63: public IChannelLogger createChannelLogger(String propertyPrefix,
64: Properties props, short channelIndex) {
65: String directory = getDirectory(propertyPrefix, props);
66: File dir = new File(directory, Short.toString(channelIndex));
67: if (dir.exists()) {
68: if (!dir.isDirectory()) {
69: System.err
70: .println("MinDirLogger base directory is a file.");
71: dir = null;
72: }
73: } else {
74: dir.mkdirs();
75: }
76: return new MinDirChannelLogger(dir);
77: }
78:
79: protected String getDirectory(String propertyPrefix,
80: Properties props) {
81: String directory = props.getProperty(propertyPrefix
82: + DIRECTORY_PROPERTY);
83: if (directory == null) {
84: directory = DEFAULT_DIRECTORY;
85: }
86: return directory;
87: }
88: }
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