1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/hack/util/ResourceLoader.java Fri Feb 13 23:45:37 2015 +0100
1.3 @@ -0,0 +1,101 @@
1.4 +/**
1.5 + * Copyright (c) 2012, Ben Fortuna
1.6 + * All rights reserved.
1.7 + *
1.8 + * Redistribution and use in source and binary forms, with or without
1.9 + * modification, are permitted provided that the following conditions
1.10 + * are met:
1.11 + *
1.12 + * o Redistributions of source code must retain the above copyright
1.13 + * notice, this list of conditions and the following disclaimer.
1.14 + *
1.15 + * o Redistributions in binary form must reproduce the above copyright
1.16 + * notice, this list of conditions and the following disclaimer in the
1.17 + * documentation and/or other materials provided with the distribution.
1.18 + *
1.19 + * o Neither the name of Ben Fortuna nor the names of any other contributors
1.20 + * may be used to endorse or promote products derived from this software
1.21 + * without specific prior written permission.
1.22 + *
1.23 + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1.24 + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1.25 + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1.26 + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
1.27 + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
1.28 + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
1.29 + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
1.30 + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
1.31 + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
1.32 + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
1.33 + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.34 + */
1.35 +package net.fortuna.ical4j.util;
1.36 +
1.37 +import java.io.InputStream;
1.38 +import java.net.URL;
1.39 +
1.40 +import android.util.Log;
1.41 +
1.42 +/**
1.43 + * @author fortuna
1.44 + *
1.45 + */
1.46 +public class ResourceLoader {
1.47 +
1.48 + /**
1.49 + * Load a resource via the thread context classloader. If security permissions don't allow
1.50 + * this fallback to loading via current classloader.
1.51 + * @param name a resource name
1.52 + * @return a {@link URL} or null if resource is not found
1.53 + */
1.54 + public static URL getResource(String name) {
1.55 + URL resource = null;
1.56 + try {
1.57 + // Hack to bootstrap a multithreaded class loader context
1.58 + if (Thread.currentThread().getContextClassLoader() == null)
1.59 + Thread.currentThread().setContextClassLoader(ResourceLoader.class.getClassLoader());
1.60 + resource = Thread.currentThread().getContextClassLoader().getResource(name);
1.61 +
1.62 + if (resource == null) // Flawed build path for assets, try again
1.63 + resource = Thread.currentThread().getContextClassLoader().getResource("/" + name);
1.64 + }
1.65 + catch (SecurityException e) {
1.66 + Log.i("MSvB-Hack", "Unable to access context classloader, using default. " + e.getMessage());
1.67 + }
1.68 + catch (Exception e) {
1.69 + Log.i("MSvB-Hack", "General context classloader error, using default. " + e.getMessage());
1.70 + }
1.71 + if (resource == null) {
1.72 + resource = ResourceLoader.class.getResource("/" + name);
1.73 + }
1.74 + return resource;
1.75 + }
1.76 +
1.77 + /**
1.78 + * Load a resource via the thread context classloader. If security permissions don't allow
1.79 + * this fallback to loading via current classloader.
1.80 + * @param name a resource name
1.81 + * @return an {@link InputStream} or null if resource is not found
1.82 + */
1.83 + public static InputStream getResourceAsStream(String name) {
1.84 + InputStream stream = null;
1.85 + try {
1.86 + // Hack to bootstrap a multithreaded class loader context
1.87 + if (Thread.currentThread().getContextClassLoader() == null)
1.88 + Thread.currentThread().setContextClassLoader(ResourceLoader.class.getClassLoader());
1.89 + stream = Thread.currentThread().getContextClassLoader().getResourceAsStream(name);
1.90 + if (stream == null)
1.91 + stream = Thread.currentThread().getContextClassLoader().getResourceAsStream("/" + name);
1.92 + }
1.93 + catch (SecurityException e) {
1.94 + Log.i("MSvB-Hack", "Unable to access context classloader, using default. " + e.getMessage());
1.95 + }
1.96 + catch (Exception e) {
1.97 + Log.i("MSvB-Hack", "General context classloader error, using default. " + e.getMessage());
1.98 + }
1.99 + if (stream == null) {
1.100 + stream = ResourceLoader.class.getResourceAsStream("/" + name);
1.101 + }
1.102 + return stream;
1.103 + }
1.104 +}
