| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| ResourceUtil |
|
| 1.5;1.5 |
| 1 | /** | |
| 2 | * Distribution License: | |
| 3 | * JSword is free software; you can redistribute it and/or modify it under | |
| 4 | * the terms of the GNU Lesser General Public License, version 2.1 or later | |
| 5 | * as published by the Free Software Foundation. This program is distributed | |
| 6 | * in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even | |
| 7 | * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | |
| 8 | * See the GNU Lesser General Public License for more details. | |
| 9 | * | |
| 10 | * The License is available on the internet at: | |
| 11 | * http://www.gnu.org/copyleft/lgpl.html | |
| 12 | * or by writing to: | |
| 13 | * Free Software Foundation, Inc. | |
| 14 | * 59 Temple Place - Suite 330 | |
| 15 | * Boston, MA 02111-1307, USA | |
| 16 | * | |
| 17 | * © CrossWire Bible Society, 2005 - 2016 | |
| 18 | * | |
| 19 | */ | |
| 20 | package org.crosswire.common.util; | |
| 21 | ||
| 22 | import java.io.IOException; | |
| 23 | import java.io.InputStream; | |
| 24 | import java.net.URL; | |
| 25 | import java.util.MissingResourceException; | |
| 26 | ||
| 27 | import org.crosswire.jsword.JSOtherMsg; | |
| 28 | ||
| 29 | /** | |
| 30 | * Better implementations of the getResource methods with less ambiguity and | |
| 31 | * that are less dependent on the specific class loader situation. | |
| 32 | * | |
| 33 | * @see gnu.lgpl.License The GNU Lesser General Public License for details. | |
| 34 | * @author Joe Walker | |
| 35 | * @author DM Smith | |
| 36 | */ | |
| 37 | public final class ResourceUtil { | |
| 38 | /** | |
| 39 | * Prevent Instantiation | |
| 40 | */ | |
| 41 | 0 | private ResourceUtil() { |
| 42 | 0 | } |
| 43 | ||
| 44 | /** | |
| 45 | * Generic resource URL fetcher. One way or the other we'll find it! Either | |
| 46 | * as a relative or an absolute reference. | |
| 47 | * | |
| 48 | * @param search | |
| 49 | * The name of the resource (without a leading /) to find | |
| 50 | * @return The requested resource | |
| 51 | * @throws MissingResourceException | |
| 52 | * if the resource can not be found | |
| 53 | */ | |
| 54 | public static URL getResource(String search) throws MissingResourceException { | |
| 55 | 0 | return getResource(CallContext.getCallingClass(), search); |
| 56 | } | |
| 57 | ||
| 58 | /** | |
| 59 | * Generic resource URL fetcher. One way or the other we'll find it! Either | |
| 60 | * as a relative or an absolute reference. | |
| 61 | * | |
| 62 | * @param <T> the type of the resource | |
| 63 | * @param clazz the basis to search for the resource first. | |
| 64 | * @param resourceName | |
| 65 | * The resource to find | |
| 66 | * @return The requested resource | |
| 67 | * @throws MissingResourceException | |
| 68 | * if the resource can not be found | |
| 69 | */ | |
| 70 | public static <T> URL getResource(Class<T> clazz, String resourceName) throws MissingResourceException { | |
| 71 | 0 | URL resource = CWClassLoader.instance(clazz).findResource(resourceName); |
| 72 | ||
| 73 | 0 | if (resource == null) { |
| 74 | 0 | throw new MissingResourceException(JSOtherMsg.lookupText("Cannot find resource: {0}", resourceName), clazz.getName(), resourceName); |
| 75 | } | |
| 76 | ||
| 77 | 0 | return resource; |
| 78 | } | |
| 79 | ||
| 80 | /** | |
| 81 | * Generic resource URL fetcher | |
| 82 | * | |
| 83 | * @param search | |
| 84 | * The name of the resource (without a leading /) to find | |
| 85 | * @return The requested resource | |
| 86 | * @throws IOException | |
| 87 | * if there is a problem reading the file | |
| 88 | * @throws MissingResourceException | |
| 89 | * if the resource can not be found | |
| 90 | */ | |
| 91 | public static InputStream getResourceAsStream(String search) throws IOException, MissingResourceException { | |
| 92 | 0 | return getResourceAsStream(CallContext.getCallingClass(), search); |
| 93 | } | |
| 94 | ||
| 95 | /** | |
| 96 | * Generic resource URL fetcher | |
| 97 | * | |
| 98 | * @param <T> the type of the resource | |
| 99 | * @param clazz the basis to search for the resource first. | |
| 100 | * @param search | |
| 101 | * The name of the resource (without a leading /) to find | |
| 102 | * @return The requested resource | |
| 103 | * @throws IOException | |
| 104 | * if there is a problem reading the file | |
| 105 | * @throws MissingResourceException | |
| 106 | * if the resource can not be found | |
| 107 | */ | |
| 108 | public static <T> InputStream getResourceAsStream(Class<T> clazz, String search) throws IOException, MissingResourceException { | |
| 109 | 0 | return ResourceUtil.getResource(clazz, search).openStream(); |
| 110 | } | |
| 111 | ||
| 112 | /** | |
| 113 | * Get and load a properties file from the writable area or if that fails | |
| 114 | * from the classpath (where a default ought to be stored) | |
| 115 | * | |
| 116 | * @param subject | |
| 117 | * The name of the desired resource (without any extension) | |
| 118 | * @return The found and loaded properties file | |
| 119 | * @throws IOException | |
| 120 | * if the resource can not be loaded | |
| 121 | */ | |
| 122 | public static PropertyMap getProperties(String subject) throws IOException { | |
| 123 | 0 | return getProperties(CallContext.getCallingClass(), subject); |
| 124 | } | |
| 125 | ||
| 126 | /** | |
| 127 | * Get and load a properties file from the writable area or if that fails | |
| 128 | * from the classpath (where a default ought to be stored) | |
| 129 | * | |
| 130 | * @param <T> the type of the resource | |
| 131 | * @param clazz | |
| 132 | * The name of the desired resource | |
| 133 | * @return The found and loaded properties file | |
| 134 | * @throws IOException | |
| 135 | * if the resource can not be loaded | |
| 136 | */ | |
| 137 | public static <T> PropertyMap getProperties(Class<T> clazz) throws IOException { | |
| 138 | 0 | return getProperties(clazz, ClassUtil.getShortClassName(clazz)); |
| 139 | } | |
| 140 | ||
| 141 | /** | |
| 142 | * Get and load a properties file from the writable area or if that fails | |
| 143 | * from the classpath (where a default ought to be stored) | |
| 144 | * | |
| 145 | * @param <T> the type of the resource | |
| 146 | * @param clazz | |
| 147 | * The name of the desired resource | |
| 148 | * @param subject | |
| 149 | * The name of the desired resource (without any extension) | |
| 150 | * @return The found and loaded properties file | |
| 151 | * @throws IOException | |
| 152 | * if the resource can not be loaded | |
| 153 | */ | |
| 154 | private static <T> PropertyMap getProperties(Class<T> clazz, String subject) throws IOException { | |
| 155 | try { | |
| 156 | 0 | String lookup = subject + FileUtil.EXTENSION_PROPERTIES; |
| 157 | 0 | InputStream in = getResourceAsStream(clazz, lookup); |
| 158 | ||
| 159 | 0 | PropertyMap prop = new PropertyMap(); |
| 160 | 0 | prop.load(in); |
| 161 | 0 | return prop; |
| 162 | 0 | } catch (MissingResourceException e) { |
| 163 | 0 | return new PropertyMap(); |
| 164 | } | |
| 165 | } | |
| 166 | } |