Kenny Root | be857d4 | 2010-08-18 15:59:25 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2010 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 android.os.storage; |
| 18 | |
| 19 | import android.os.Binder; |
| 20 | import android.os.IBinder; |
| 21 | import android.os.IInterface; |
| 22 | import android.os.Parcel; |
| 23 | import android.os.RemoteException; |
| 24 | |
| 25 | /** |
| 26 | * Callback class for receiving events from MountService about Opaque Binary |
| 27 | * Blobs (OBBs). |
| 28 | * |
| 29 | * @hide - Applications should use StorageManager to interact with OBBs. |
| 30 | */ |
| 31 | public interface IObbActionListener extends IInterface { |
| 32 | /** Local-side IPC implementation stub class. */ |
| 33 | public static abstract class Stub extends Binder implements IObbActionListener { |
| 34 | private static final String DESCRIPTOR = "IObbActionListener"; |
| 35 | |
| 36 | /** Construct the stub at attach it to the interface. */ |
| 37 | public Stub() { |
| 38 | this.attachInterface(this, DESCRIPTOR); |
| 39 | } |
| 40 | |
| 41 | /** |
| 42 | * Cast an IBinder object into an IObbActionListener interface, |
| 43 | * generating a proxy if needed. |
| 44 | */ |
| 45 | public static IObbActionListener asInterface(IBinder obj) { |
| 46 | if ((obj == null)) { |
| 47 | return null; |
| 48 | } |
| 49 | IInterface iin = (IInterface) obj.queryLocalInterface(DESCRIPTOR); |
| 50 | if (((iin != null) && (iin instanceof IObbActionListener))) { |
| 51 | return ((IObbActionListener) iin); |
| 52 | } |
| 53 | return new IObbActionListener.Stub.Proxy(obj); |
| 54 | } |
| 55 | |
| 56 | public IBinder asBinder() { |
| 57 | return this; |
| 58 | } |
| 59 | |
| 60 | @Override |
| 61 | public boolean onTransact(int code, Parcel data, Parcel reply, int flags) |
| 62 | throws RemoteException { |
| 63 | switch (code) { |
| 64 | case INTERFACE_TRANSACTION: { |
| 65 | reply.writeString(DESCRIPTOR); |
| 66 | return true; |
| 67 | } |
| 68 | case TRANSACTION_onObbResult: { |
| 69 | data.enforceInterface(DESCRIPTOR); |
| 70 | String filename; |
| 71 | filename = data.readString(); |
Kenny Root | af9d667 | 2010-10-08 09:21:39 -0700 | [diff] [blame] | 72 | int nonce; |
| 73 | nonce = data.readInt(); |
| 74 | int status; |
| 75 | status = data.readInt(); |
| 76 | this.onObbResult(filename, nonce, status); |
Kenny Root | be857d4 | 2010-08-18 15:59:25 -0700 | [diff] [blame] | 77 | reply.writeNoException(); |
| 78 | return true; |
| 79 | } |
| 80 | } |
| 81 | return super.onTransact(code, data, reply, flags); |
| 82 | } |
| 83 | |
| 84 | private static class Proxy implements IObbActionListener { |
| 85 | private IBinder mRemote; |
| 86 | |
| 87 | Proxy(IBinder remote) { |
| 88 | mRemote = remote; |
| 89 | } |
| 90 | |
| 91 | public IBinder asBinder() { |
| 92 | return mRemote; |
| 93 | } |
| 94 | |
| 95 | public String getInterfaceDescriptor() { |
| 96 | return DESCRIPTOR; |
| 97 | } |
| 98 | |
| 99 | /** |
| 100 | * Return from an OBB action result. |
| 101 | * |
| 102 | * @param filename the path to the OBB the operation was performed |
| 103 | * on |
| 104 | * @param returnCode status of the operation |
| 105 | */ |
Kenny Root | af9d667 | 2010-10-08 09:21:39 -0700 | [diff] [blame] | 106 | public void onObbResult(String filename, int nonce, int status) |
| 107 | throws RemoteException { |
Kenny Root | be857d4 | 2010-08-18 15:59:25 -0700 | [diff] [blame] | 108 | Parcel _data = Parcel.obtain(); |
| 109 | Parcel _reply = Parcel.obtain(); |
| 110 | try { |
| 111 | _data.writeInterfaceToken(DESCRIPTOR); |
| 112 | _data.writeString(filename); |
Kenny Root | af9d667 | 2010-10-08 09:21:39 -0700 | [diff] [blame] | 113 | _data.writeInt(nonce); |
| 114 | _data.writeInt(status); |
Kenny Root | b7db272 | 2011-01-25 16:39:35 -0800 | [diff] [blame] | 115 | mRemote.transact(Stub.TRANSACTION_onObbResult, _data, _reply, |
| 116 | Binder.FLAG_ONEWAY); |
Kenny Root | be857d4 | 2010-08-18 15:59:25 -0700 | [diff] [blame] | 117 | _reply.readException(); |
| 118 | } finally { |
| 119 | _reply.recycle(); |
| 120 | _data.recycle(); |
| 121 | } |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | static final int TRANSACTION_onObbResult = (IBinder.FIRST_CALL_TRANSACTION + 0); |
| 126 | } |
| 127 | |
| 128 | /** |
| 129 | * Return from an OBB action result. |
| 130 | * |
| 131 | * @param filename the path to the OBB the operation was performed on |
Kenny Root | af9d667 | 2010-10-08 09:21:39 -0700 | [diff] [blame] | 132 | * @param nonce identifier that is meaningful to the receiver |
| 133 | * @param status status code as defined in {@link OnObbStateChangeListener} |
Kenny Root | be857d4 | 2010-08-18 15:59:25 -0700 | [diff] [blame] | 134 | */ |
Kenny Root | af9d667 | 2010-10-08 09:21:39 -0700 | [diff] [blame] | 135 | public void onObbResult(String filename, int nonce, int status) throws RemoteException; |
Kenny Root | be857d4 | 2010-08-18 15:59:25 -0700 | [diff] [blame] | 136 | } |