comparison: src/java/de/uapcore/lightpit/Functions.java
src/java/de/uapcore/lightpit/Functions.java
- changeset 29
- 27a0fdd7bca7
- parent 28
- cfc3d11884ad
- child 30
- fb30f7b78f9b
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| 28:cfc3d11884ad | 29:27a0fdd7bca7 |
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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 java.util.Optional; | |
| 32 import javax.servlet.ServletContext; | |
| 33 import javax.servlet.http.HttpServletRequest; | |
| 34 import org.slf4j.Logger; | |
| 35 import org.slf4j.LoggerFactory; | |
| 36 | |
| 37 /** | |
| 38 * Contains common static functions. | |
| 39 */ | |
| 40 public final class Functions { | |
| 41 | |
| 42 private static final Logger LOG = LoggerFactory.getLogger(Functions.class); | |
| 43 | |
| 44 public static Optional<String[]> availableLanguages(ServletContext ctx) { | |
| 45 return Optional.ofNullable(ctx.getInitParameter(Constants.CTX_ATTR_LANGUAGES)).map((x) -> x.split("\\s*,\\s*")); | |
| 46 } | |
| 47 | |
| 48 public static String enforceExt(String filename, String ext) { | |
| 49 return filename.endsWith(ext) ? filename : filename + ext; | |
| 50 } | |
| 51 | |
| 52 public static String jspPath(String filename) { | |
| 53 return enforceExt(Constants.JSP_PATH_PREFIX + filename, ".jsp"); | |
| 54 } | |
| 55 | |
| 56 public static String jspfPath(String filename) { | |
| 57 return enforceExt(Constants.JSPF_PATH_PREFIX + filename, ".jspf"); | |
| 58 } | |
| 59 | |
| 60 public static String dynFragmentPath(String filename) { | |
| 61 return enforceExt(Constants.DYN_FRAGMENT_PATH_PREFIX + filename, ".jsp"); | |
| 62 } | |
| 63 | |
| 64 public static String fqn(String base, String name) { | |
| 65 return base+"."+name; | |
| 66 } | |
| 67 | |
| 68 public static String fqn(Class clazz, String name) { | |
| 69 return fqn(clazz.getName(), name); | |
| 70 } | |
| 71 | |
| 72 public static String fullPath(LightPITModule module, RequestMapping mapping) { | |
| 73 StringBuilder sb = new StringBuilder(); | |
| 74 sb.append(module.modulePath()); | |
| 75 sb.append('/'); | |
| 76 if (!mapping.requestPath().isEmpty()) { | |
| 77 sb.append(mapping.requestPath().isEmpty()); | |
| 78 sb.append('/'); | |
| 79 } | |
| 80 return sb.toString(); | |
| 81 } | |
| 82 | |
| 83 public static String fullPath(HttpServletRequest req) { | |
| 84 return req.getServletPath() + Optional.ofNullable(req.getPathInfo()).orElse(""); | |
| 85 } | |
| 86 | |
| 87 /** | |
| 88 * Returns the module path of the given LightPIT Servlet module. | |
| 89 * | |
| 90 * If you specify a malformed LightPIT servlet, which does not have a module | |
| 91 * annotation, the path to the <code>/error/404.html</code> page is returned. | |
| 92 * | |
| 93 * @param clazz the servlet class | |
| 94 * @return the module path | |
| 95 */ | |
| 96 public static String modulePathOf(Class<? extends AbstractLightPITServlet> clazz) { | |
| 97 Optional<LightPITModule> moduleInfo = Optional.ofNullable(clazz.getAnnotation(LightPITModule.class)); | |
| 98 if (moduleInfo.isPresent()) { | |
| 99 return moduleInfo.get().modulePath(); | |
| 100 } else { | |
| 101 LOG.warn( | |
| 102 "{} is a LightPIT Servlet but is missing the module annotation.", | |
| 103 clazz.getName() | |
| 104 ); | |
| 105 return "/error/404.html"; | |
| 106 } | |
| 107 } | |
| 108 | |
| 109 /** | |
| 110 * This class is not instantiatable. | |
| 111 */ | |
| 112 private Functions() {} | |
| 113 } |
