1 /*
2  * Copyright (C) 2014 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.example.android.wearable.recipeassistant;
18 
19 import android.content.Context;
20 import android.graphics.Bitmap;
21 import android.graphics.BitmapFactory;
22 import android.util.Log;
23 
24 import org.json.JSONException;
25 import org.json.JSONObject;
26 
27 import java.io.IOException;
28 import java.io.InputStream;
29 
30 final class AssetUtils {
31     private static final String TAG = "RecipeAssistant";
32 
loadAsset(Context context, String asset)33     public static byte[] loadAsset(Context context, String asset) {
34         byte[] buffer = null;
35         try {
36             InputStream is = context.getAssets().open(asset);
37             int size = is.available();
38             buffer = new byte[size];
39             is.read(buffer);
40             is.close();
41         } catch (IOException e) {
42             Log.e(TAG, "Failed to load asset " + asset + ": " + e);
43         }
44         return buffer;
45     }
46 
loadJSONAsset(Context context, String asset)47     public static JSONObject loadJSONAsset(Context context, String asset) {
48         String jsonString = new String(loadAsset(context, asset));
49         JSONObject jsonObject = null;
50         try {
51             jsonObject = new JSONObject(jsonString);
52         } catch (JSONException e) {
53             Log.e(TAG, "Failed to parse JSON asset " + asset + ": " + e);
54         }
55         return jsonObject;
56     }
57 
loadBitmapAsset(Context context, String asset)58     public static Bitmap loadBitmapAsset(Context context, String asset) {
59         InputStream is = null;
60         Bitmap bitmap = null;
61         try {
62             is = context.getAssets().open(asset);
63             if (is != null) {
64                 bitmap = BitmapFactory.decodeStream(is);
65             }
66         } catch (IOException e) {
67             Log.e(TAG, e.toString());
68         } finally {
69             if (is != null) {
70                 try {
71                     is.close();
72                 } catch (IOException e) {
73                     Log.e(TAG, "Cannot close InputStream: ", e);
74                 }
75             }
76         }
77         return bitmap;
78     }
79 }
80