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Add ResourcesLoader to wrap loading resources from classpath, remove …
…or deprecate direct usage of class loaders from the engine
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101 changes: 101 additions & 0 deletions
101
jme3-core/src/main/java/com/jme3/util/res/ResourcesLoader.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| /* | ||
| * Copyright (c) 2009-2023 jMonkeyEngine | ||
| * All rights reserved. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions are | ||
| * met: | ||
| * | ||
| * * Redistributions of source code must retain the above copyright | ||
| * notice, this list of conditions and the following disclaimer. | ||
| * | ||
| * * Redistributions in binary form must reproduce the above copyright | ||
| * notice, this list of conditions and the following disclaimer in the | ||
| * documentation and/or other materials provided with the distribution. | ||
| * | ||
| * * Neither the name of 'jMonkeyEngine' nor the names of its contributors | ||
| * may be used to endorse or promote products derived from this software | ||
| * without specific prior written permission. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED | ||
| * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR | ||
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | ||
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
| * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| */ | ||
| package com.jme3.util.res; | ||
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| import java.io.IOException; | ||
| import java.io.InputStream; | ||
| import java.net.URL; | ||
| import java.util.Enumeration; | ||
| import java.util.logging.Level; | ||
| import java.util.logging.Logger; | ||
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| /** | ||
| * This class is used to load resources from the default location | ||
| * usually the classpath. | ||
| */ | ||
| public class ResourcesLoader { | ||
| public static final String PROPERTY_RESOURCES_LOADER_IMPLEMENTATION = "com.jme3.ResourcesLoaderImplementation"; | ||
| private static final String DEFAULT_IMPL = "com.jme3.util.res.ResourcesLoaderJImpl"; | ||
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| private static final Logger LOGGER = Logger.getLogger(ResourcesLoader.class.getName()); | ||
| private static ResourcesLoaderImpl impl = null; | ||
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| private static ResourcesLoaderImpl getImpl() { | ||
| if (impl != null) return impl; | ||
| String className = System.getProperty(PROPERTY_RESOURCES_LOADER_IMPLEMENTATION, DEFAULT_IMPL); | ||
| try { | ||
| impl = (ResourcesLoaderImpl) Class.forName(className).getDeclaredConstructor().newInstance(); | ||
| } catch (final Throwable e) { | ||
| LOGGER.log(Level.WARNING, "Unable to access {0}", className); | ||
| try { | ||
| impl = (ResourcesLoaderImpl) Class.forName(DEFAULT_IMPL).getDeclaredConstructor().newInstance(); | ||
| } catch (final Throwable e1) { | ||
| throw new RuntimeException("Unable to access default resources loader implementation", e1); | ||
| } | ||
| } | ||
| return impl; | ||
| } | ||
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| public static void setImpl(ResourcesLoaderImpl impl) { | ||
| ResourcesLoader.impl = impl; | ||
| } | ||
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| public static URL getResource(String path) { | ||
| return getImpl().getResource(path, null); | ||
| } | ||
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| public static URL getResource(String path, Class<?> parent) { | ||
| return getImpl().getResource(path, parent); | ||
| } | ||
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| public static InputStream getResourceAsStream(String path) { | ||
| return getImpl().getResourceAsStream(path, null); | ||
| } | ||
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| public static InputStream getResourceAsStream(String path,Class<?> clazz) { | ||
| return getImpl().getResourceAsStream(path,clazz); | ||
| } | ||
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| public static Enumeration<URL> getResources(String path ) throws IOException { | ||
| return getImpl().getResources(path,null); | ||
| } | ||
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| public static Enumeration<URL> getResources(String path,Class<?> clazz) throws IOException { | ||
| return getImpl().getResources(path,clazz); | ||
| } | ||
| } |
43 changes: 43 additions & 0 deletions
43
jme3-core/src/main/java/com/jme3/util/res/ResourcesLoaderImpl.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| /* | ||
| * Copyright (c) 2009-2023 jMonkeyEngine | ||
| * All rights reserved. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions are | ||
| * met: | ||
| * | ||
| * * Redistributions of source code must retain the above copyright | ||
| * notice, this list of conditions and the following disclaimer. | ||
| * | ||
| * * Redistributions in binary form must reproduce the above copyright | ||
| * notice, this list of conditions and the following disclaimer in the | ||
| * documentation and/or other materials provided with the distribution. | ||
| * | ||
| * * Neither the name of 'jMonkeyEngine' nor the names of its contributors | ||
| * may be used to endorse or promote products derived from this software | ||
| * without specific prior written permission. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED | ||
| * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR | ||
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | ||
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
| * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| */ | ||
| package com.jme3.util.res; | ||
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| import java.io.IOException; | ||
| import java.io.InputStream; | ||
| import java.net.URL; | ||
| import java.util.Enumeration; | ||
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| public interface ResourcesLoaderImpl { | ||
| public URL getResource(String path, Class<?> clazz); | ||
| public InputStream getResourceAsStream(String path, Class<?> clazz); | ||
| public Enumeration<URL> getResources(String path, Class<?> clazz) throws IOException; | ||
| } |
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