1 /*
2  * Copyright (C) 2015 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.android.tv.license;
18 
19 import android.content.res.AssetManager;
20 
21 import java.io.File;
22 import java.io.IOException;
23 import java.io.InputStream;
24 
25 /**
26  * Utilities for showing open source licenses.
27  */
28 public final class LicenseUtils {
29     public final static String LICENSE_FILE = "file:///android_asset/licenses.html";
30     public final static String RATING_SOURCE_FILE =
31             "file:///android_asset/rating_sources.html";
32     private final static File licenseFile = new File(LICENSE_FILE);
33 
34     /**
35      * Checks if the license.html asset is include in the apk.
36      */
hasLicenses(AssetManager am)37     public static boolean hasLicenses(AssetManager am) {
38         try (InputStream is = am.open("licenses.html")) {
39             return true;
40         } catch (IOException e) {
41             return false;
42         }
43     }
44 
45     /**
46      * Checks if the rating_attribution.html asset is include in the apk.
47      */
hasRatingAttribution(AssetManager am)48     public static boolean hasRatingAttribution(AssetManager am) {
49         try (InputStream is = am.open("rating_sources.html")) {
50             return true;
51         } catch (IOException e) {
52             return false;
53         }
54     }
55 
LicenseUtils()56     private LicenseUtils() {
57     }
58 }
59