Caldavsync Sources: hack/util/ResourceLoader.java@a6e06f8d463c

     1 /**

     2  * Copyright (c) 2012, Ben Fortuna

     3  * All rights reserved.

     4  *

     5  * Redistribution and use in source and binary forms, with or without

     6  * modification, are permitted provided that the following conditions

     7  * are met:

     8  *

     9  *  o Redistributions of source code must retain the above copyright

    10  * notice, this list of conditions and the following disclaimer.

    11  *

    12  *  o 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  *  o Neither the name of Ben Fortuna nor the names of any other contributors

    17  * may be used to endorse or promote products derived from this software

    18  * without specific prior written permission.

    19  *

    20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

    21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

    22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

    23  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR

    24  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

    25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

    26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

    27  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

    28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

    29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

    30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    31  */

    32 package net.fortuna.ical4j.util;

    34 import java.io.InputStream;

    35 import java.net.URL;

    37 import android.util.Log;

    39 /**

    40  * @author fortuna

    41  *

    42  */

    43 public class ResourceLoader {

    45 	/**

    46 	 * Load a resource via the thread context classloader. If security permissions don't allow

    47 	 * this fallback to loading via current classloader.

    48 	 * @param name a resource name

    49 	 * @return a {@link URL} or null if resource is not found

    50 	 */

    51 	public static URL getResource(String name) {

    52 		URL resource = null;

    53 		try {

    54 			// Hack to bootstrap a multithreaded class loader context

    55 			if (Thread.currentThread().getContextClassLoader() == null)

    56 				Thread.currentThread().setContextClassLoader(ResourceLoader.class.getClassLoader());

    57 			resource = Thread.currentThread().getContextClassLoader().getResource(name);

    59 			if (resource == null) // Flawed build path for assets, try again

    60 				resource = Thread.currentThread().getContextClassLoader().getResource("/" + name);

    61 		}

    62 		catch (SecurityException e) {

    63 			Log.i("MSvB-Hack", "Unable to access context classloader, using default. " + e.getMessage());

    64 		}

    65 		catch (Exception e) {

    66 			Log.i("MSvB-Hack", "General context classloader error, using default. " + e.getMessage());

    67 		}

    68 		if (resource == null) {

    69 			resource = ResourceLoader.class.getResource("/" + name);

    70 		}

    71 		return resource;

    72 	}

    74 	/**

    75 	 * Load a resource via the thread context classloader. If security permissions don't allow

    76 	 * this fallback to loading via current classloader.

    77 	 * @param name a resource name

    78 	 * @return an {@link InputStream} or null if resource is not found

    79 	 */

    80 	public static InputStream getResourceAsStream(String name) {

    81 		InputStream stream = null;

    82 		try {

    83 			// Hack to bootstrap a multithreaded class loader context

    84 			if (Thread.currentThread().getContextClassLoader() == null)

    85 				Thread.currentThread().setContextClassLoader(ResourceLoader.class.getClassLoader());

    86 			stream = Thread.currentThread().getContextClassLoader().getResourceAsStream(name);

    87 			if (stream == null)

    88 				stream = Thread.currentThread().getContextClassLoader().getResourceAsStream("/" + name);

    89 		}

    90 		catch (SecurityException e) {

    91 			Log.i("MSvB-Hack", "Unable to access context classloader, using default. " + e.getMessage());

    92 		}

    93 		catch (Exception e) {

    94 			Log.i("MSvB-Hack", "General context classloader error, using default. " + e.getMessage());

    95 		}

    96 		if (stream == null) {

    97 			stream = ResourceLoader.class.getResourceAsStream("/" + name);

    98 		}

    99 		return stream;

   100 	}

   101 }

Caldavsync Sources / file revision