01: /*
02: * (c) Copyright 2006 by Volker Bergmann. All rights reserved.
03: *
04: * Redistribution and use in source and binary forms, with or without
05: * modification, is permitted under the terms of the
06: * GNU General Public License.
07: *
08: * For redistributing this software or a derivative work under a license other
09: * than the GPL-compatible Free Software License as defined by the Free
10: * Software Foundation or approved by OSI, you must first obtain a commercial
11: * license to this software product from Volker Bergmann.
12: *
13: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
14: * WITHOUT A WARRANTY OF ANY KIND. ALL EXPRESS OR IMPLIED CONDITIONS,
15: * REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF
16: * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE
17: * HEREBY EXCLUDED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
18: * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
22: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24: * POSSIBILITY OF SUCH DAMAGE.
25: */
26:
27: package org.databene.region;
28:
29: import org.databene.commons.IOUtil;
30:
31: import java.util.Locale;
32:
33: /**
34: * Provides utility methods for Region handling.<br/>
35: * <br/>
36: * Created: 07.06.2007 08:52:59
37: */
38: public class RegionUtil {
39:
40: public static String availableLocaleUrl(String baseName,
41: Locale locale, String suffix) {
42: String localeString = locale.toString();
43: do {
44: String url = baseName;
45: if (localeString != null && localeString.length() > 0)
46: url += "_" + localeString;
47: url += suffix;
48: if (IOUtil.isURIAvailable(url))
49: return url;
50: localeString = reduceLocaleString(localeString);
51: } while (localeString != null);
52: return null;
53: }
54:
55: public static String availableRegionUrl(String baseName,
56: Region region, String suffix) {
57: String localeString = region.toString();
58: do {
59: String url = baseName;
60: if (localeString != null && localeString.length() > 0)
61: url += "_" + localeString;
62: url += suffix;
63: if (IOUtil.isURIAvailable(url))
64: return url;
65: localeString = reduceLocaleString(localeString);
66: } while (localeString != null);
67: return null;
68: }
69:
70: private static String reduceLocaleString(String localeString) {
71: if (localeString == null || localeString.length() == 0)
72: return null;
73: int separatorIndex = localeString.indexOf('_');
74: if (separatorIndex < 0)
75: return "";
76: return localeString.substring(0, separatorIndex);
77: }
78: }
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