1 // Protocol Buffers - Google's data interchange format 2 // Copyright 2015 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 31 package com.google.protobuf.nano.android; 32 33 import android.os.Parcel; 34 import android.os.Parcelable; 35 import android.util.Log; 36 37 import com.google.protobuf.nano.InvalidProtocolBufferNanoException; 38 import com.google.protobuf.nano.MessageNano; 39 40 import java.lang.reflect.Array; 41 42 public final class ParcelableMessageNanoCreator<T extends MessageNano> 43 implements Parcelable.Creator<T> { 44 private static final String TAG = "PMNCreator"; 45 46 private final Class<T> mClazz; 47 ParcelableMessageNanoCreator(Class<T> clazz)48 public ParcelableMessageNanoCreator(Class<T> clazz) { 49 mClazz = clazz; 50 } 51 52 @SuppressWarnings("unchecked") 53 @Override createFromParcel(Parcel in)54 public T createFromParcel(Parcel in) { 55 String className = in.readString(); 56 byte[] data = in.createByteArray(); 57 58 T proto = null; 59 60 try { 61 Class<?> clazz = Class.forName(className); 62 Object instance = clazz.newInstance(); 63 proto = (T) instance; 64 MessageNano.mergeFrom(proto, data); 65 } catch (ClassNotFoundException e) { 66 Log.e(TAG, "Exception trying to create proto from parcel", e); 67 } catch (IllegalAccessException e) { 68 Log.e(TAG, "Exception trying to create proto from parcel", e); 69 } catch (InstantiationException e) { 70 Log.e(TAG, "Exception trying to create proto from parcel", e); 71 } catch (InvalidProtocolBufferNanoException e) { 72 Log.e(TAG, "Exception trying to create proto from parcel", e); 73 } 74 75 return proto; 76 } 77 78 @SuppressWarnings("unchecked") 79 @Override newArray(int i)80 public T[] newArray(int i) { 81 return (T[]) Array.newInstance(mClazz, i); 82 } 83 writeToParcel(Class<T> clazz, MessageNano message, Parcel out)84 static <T extends MessageNano> void writeToParcel(Class<T> clazz, MessageNano message, 85 Parcel out) { 86 out.writeString(clazz.getName()); 87 out.writeByteArray(MessageNano.toByteArray(message)); 88 } 89 } 90