comparison: src/main/java/de/uapcore/lightpit/Functions.java
src/main/java/de/uapcore/lightpit/Functions.java
- changeset 158
- 4f912cd42876
- parent 157
- 1e6f16fad3a5
- child 159
- 86b5d8a1662f
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| 157:1e6f16fad3a5 | 158:4f912cd42876 |
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| 1 /* | |
| 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | |
| 3 * | |
| 4 * Copyright 2018 Mike Becker. All rights reserved. | |
| 5 * | |
| 6 * Redistribution and use in source and binary forms, with or without | |
| 7 * modification, are permitted provided that the following conditions are met: | |
| 8 * | |
| 9 * 1. Redistributions of source code must retain the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer. | |
| 11 * | |
| 12 * 2. 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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |
| 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| 26 * POSSIBILITY OF SUCH DAMAGE. | |
| 27 * | |
| 28 */ | |
| 29 package de.uapcore.lightpit; | |
| 30 | |
| 31 import org.slf4j.Logger; | |
| 32 import org.slf4j.LoggerFactory; | |
| 33 | |
| 34 import javax.servlet.ServletContext; | |
| 35 import javax.servlet.http.HttpServletRequest; | |
| 36 import java.util.Optional; | |
| 37 | |
| 38 /** | |
| 39 * Contains common static functions. | |
| 40 */ | |
| 41 public final class Functions { | |
| 42 | |
| 43 private static final Logger LOG = LoggerFactory.getLogger(Functions.class); | |
| 44 | |
| 45 public static Optional<String[]> availableLanguages(ServletContext ctx) { | |
| 46 return Optional.ofNullable(ctx.getInitParameter(Constants.CTX_ATTR_LANGUAGES)).map((x) -> x.split("\\s*,\\s*")); | |
| 47 } | |
| 48 | |
| 49 public static String enforceExt(String filename, String ext) { | |
| 50 return filename.endsWith(ext) ? filename : filename + ext; | |
| 51 } | |
| 52 | |
| 53 public static String jspPath(String filename) { | |
| 54 return enforceExt(Constants.JSP_PATH_PREFIX + filename, ".jsp"); | |
| 55 } | |
| 56 | |
| 57 public static String fqn(String base, String name) { | |
| 58 return base + "." + name; | |
| 59 } | |
| 60 | |
| 61 public static String fqn(Class<?> clazz, String name) { | |
| 62 return fqn(clazz.getName(), name); | |
| 63 } | |
| 64 | |
| 65 public static String baseHref(HttpServletRequest req) { | |
| 66 return String.format("%s://%s:%d%s/", | |
| 67 req.getScheme(), | |
| 68 req.getServerName(), | |
| 69 req.getServerPort(), | |
| 70 req.getContextPath()); | |
| 71 } | |
| 72 | |
| 73 public static String fullPath(HttpServletRequest req) { | |
| 74 return req.getServletPath() + Optional.ofNullable(req.getPathInfo()).orElse(""); | |
| 75 } | |
| 76 | |
| 77 public static int parseIntOrZero(String str) { | |
| 78 try { | |
| 79 return Integer.parseInt(str); | |
| 80 } catch (NumberFormatException ex) { | |
| 81 return 0; | |
| 82 } | |
| 83 } | |
| 84 | |
| 85 /** | |
| 86 * This class is not instantiatable. | |
| 87 */ | |
| 88 private Functions() { | |
| 89 } | |
| 90 } |
