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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 package org.chromium.webapk.shell_apk; | 5 package org.chromium.webapk.shell_apk; |
6 | 6 |
7 import android.app.Service; | 7 import android.app.Service; |
8 import android.content.Context; | |
8 import android.content.Intent; | 9 import android.content.Intent; |
9 import android.os.IBinder; | 10 import android.os.IBinder; |
11 import android.util.Log; | |
10 | 12 |
11 import org.chromium.webapk.lib.runtime_library.WebApkServiceImpl; | 13 import org.chromium.webapk.lib.common.WebApkUtils; |
14 | |
15 import java.io.File; | |
16 import java.lang.reflect.Constructor; | |
12 | 17 |
13 /** | 18 /** |
14 * Implements services offered by the WebAPK to Chrome. | 19 * Shell class for services provided by WebAPK to Chrome. Extracts code with imp lementation of |
20 * services from .dex file in Chrome APK. | |
15 */ | 21 */ |
16 public class WebApkServiceFactory extends Service { | 22 public class WebApkServiceFactory extends Service { |
23 private static final String TAG = "cr.WebApkServiceFactory"; | |
gone
2016/05/25 21:11:02
nit: cr. should be automatically added now. Just
pkotwicz
2016/05/26 01:11:41
The WebAPK code cannot depend on //base This means
| |
24 | |
25 /** | |
26 * Name of the class with IBinder API implementation. | |
27 */ | |
28 private static final String WEBAPK_SERVICE_IMPL_CLASS_NAME = | |
29 "org.chromium.webapk.lib.runtime_library.WebApkServiceImpl"; | |
30 | |
31 /* | |
32 * ClassLoader for loading {@link WEBAPK_SERVICE_IMPL_CLASS_NAME}. Static so that all | |
33 * {@link WebApkServiceFactory} service instatiations use the same ClassLoad er during the app's | |
34 * lifetime. | |
35 */ | |
36 private static ClassLoader sClassLoader; | |
17 | 37 |
18 @Override | 38 @Override |
19 public IBinder onBind(Intent intent) { | 39 public IBinder onBind(Intent intent) { |
20 return new WebApkServiceImpl(this, R.drawable.app_icon); | 40 ClassLoader webApkClassLoader = getClassLoaderInstance(this); |
41 if (webApkClassLoader == null) { | |
42 Log.w(TAG, "Unable to create ClassLoader."); | |
43 return null; | |
44 } | |
45 | |
46 try { | |
47 Class<?> webApkServiceImplClass = | |
48 webApkClassLoader.loadClass(WEBAPK_SERVICE_IMPL_CLASS_NAME); | |
49 Constructor<?> webApkServiceImplConstructor = | |
50 webApkServiceImplClass.getConstructor(Context.class, int.cla ss); | |
51 return (IBinder) webApkServiceImplConstructor.newInstance( | |
52 new Object[] {this, R.drawable.app_icon}); | |
53 } catch (Exception e) { | |
54 Log.w(TAG, "Unable to create WebApkServiceImpl."); | |
55 e.printStackTrace(); | |
56 return null; | |
57 } | |
58 } | |
59 | |
60 /** | |
61 * Gets / creates ClassLaoder for loading {@link WEBAPK_SERVICE_IMPL_CLASS_N AME}. | |
62 * @param context WebAPK's context. | |
63 * @return The ClassLoader. | |
64 */ | |
65 private static ClassLoader getClassLoaderInstance(Context context) { | |
66 if (sClassLoader == null) { | |
67 sClassLoader = createClassLoader(context); | |
68 } | |
69 return sClassLoader; | |
70 } | |
71 | |
72 /** | |
73 * Creates ClassLoader for loading {@link WEBAPK_SERVICE_IMPL_CLASS_NAME}. | |
74 * @param context WebAPK's context. | |
75 * @return The ClassLoader. | |
76 */ | |
77 private static ClassLoader createClassLoader(Context context) { | |
78 Context remoteContext = WebApkUtils.getHostBrowserContext(context); | |
79 if (remoteContext == null) { | |
80 Log.w(TAG, "Failed to get remote context."); | |
81 return null; | |
82 } | |
83 | |
84 File localDexDir = context.getDir("dex", Context.MODE_PRIVATE); | |
85 File remoteDexFile = | |
86 new File(remoteContext.getDir("dex", Context.MODE_PRIVATE), "web _apk.dex"); | |
87 return DexLoader.load(remoteContext, "web_apk.dex", WEBAPK_SERVICE_IMPL_ CLASS_NAME, | |
88 remoteDexFile, localDexDir); | |
21 } | 89 } |
22 } | 90 } |
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