1// Protocol Buffers - Google's data interchange format
2// Copyright 2014 Google Inc.  All rights reserved.
3// http://code.google.com/p/protobuf/
4//
5// Redistribution and use in source and binary forms, with or without
6// modification, are permitted provided that the following conditions are
7// met:
8//
9//     * Redistributions of source code must retain the above copyright
10// notice, this list of conditions and the following disclaimer.
11//     * Redistributions in binary form must reproduce the above
12// copyright notice, this list of conditions and the following disclaimer
13// in the documentation and/or other materials provided with the
14// distribution.
15//     * Neither the name of Google Inc. nor the names of its
16// contributors may be used to endorse or promote products derived from
17// this software without specific prior written permission.
18//
19// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30
31package com.google.protobuf.nano.android;
32
33import android.os.Parcel;
34import android.util.Log;
35
36import com.google.protobuf.nano.InvalidProtocolBufferNanoException;
37import com.google.protobuf.nano.MessageNano;
38
39final class ParcelingUtil {
40    private static final String TAG = "ParcelingUtil";
41
42    @SuppressWarnings("unchecked")
43    static <T extends MessageNano> T createFromParcel(Parcel in) {
44        String className = in.readString();
45        byte[] data = in.createByteArray();
46
47        T proto = null;
48
49        try {
50            Class<?> clazz = Class.forName(className);
51            Object instance = clazz.newInstance();
52            proto = (T) instance;
53            MessageNano.mergeFrom(proto, data);
54        } catch (ClassNotFoundException e) {
55            Log.e(TAG, "Exception trying to create proto from parcel", e);
56        } catch (IllegalAccessException e) {
57            Log.e(TAG, "Exception trying to create proto from parcel", e);
58        } catch (InstantiationException e) {
59            Log.e(TAG, "Exception trying to create proto from parcel", e);
60        } catch (InvalidProtocolBufferNanoException e) {
61            Log.e(TAG, "Exception trying to create proto from parcel", e);
62        }
63
64        return proto;
65    }
66
67    static <T extends MessageNano> void writeToParcel(Class<T> clazz, MessageNano message,
68            Parcel out) {
69        out.writeString(clazz.getName());
70        out.writeByteArray(MessageNano.toByteArray(message));
71    }
72}
73