michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: package org.mozilla.gecko.util;
michael@0: 
michael@0: import android.content.Context;
michael@0: import android.content.res.Resources;
michael@0: 
michael@0: import java.io.IOException;
michael@0: import java.io.InputStream;
michael@0: import java.io.InputStreamReader;
michael@0: import java.io.StringWriter;
michael@0: 
michael@0: /**
michael@0:  * {@code RawResource} provides API to load raw resources in different
michael@0:  * forms. For now, we only load them as strings. We're using raw resources
michael@0:  * as localizable 'assets' as opposed to a string that can be directly
michael@0:  * translatable e.g. JSON file vs string.
michael@0:  *
michael@0:  * This is just a utility class to avoid code duplication for the different
michael@0:  * cases where need to read such assets.
michael@0:  */
michael@0: public final class RawResource {
michael@0:     public static String getAsString(Context context, int id) throws IOException {
michael@0:         InputStreamReader reader = null;
michael@0: 
michael@0:         try {
michael@0:             final Resources res = context.getResources();
michael@0:             final InputStream is = res.openRawResource(id);
michael@0:             if (is == null) {
michael@0:                 return null;
michael@0:             }
michael@0: 
michael@0:             reader = new InputStreamReader(is);
michael@0: 
michael@0:             final char[] buffer = new char[1024];
michael@0:             final StringWriter s = new StringWriter();
michael@0: 
michael@0:             int n;
michael@0:             while ((n = reader.read(buffer, 0, buffer.length)) != -1) {
michael@0:                 s.write(buffer, 0, n);
michael@0:             }
michael@0: 
michael@0:             return s.toString();
michael@0:         } finally {
michael@0:             if (reader != null) {
michael@0:                 reader.close();
michael@0:             }
michael@0:         }
michael@0:     }
michael@0: }