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 import java.lang.reflect.InvocationTargetException; 42 43 public final class ParcelableMessageNanoCreator<T extends MessageNano> 44 implements Parcelable.Creator<T> { 45 private static final String TAG = "PMNCreator"; 46 47 private final Class<T> mClazz; 48 49 public ParcelableMessageNanoCreator(Class<T> clazz) { 50 mClazz = clazz; 51 } 52 53 @SuppressWarnings("unchecked") 54 @Override 55 public T createFromParcel(Parcel in) { 56 String className = in.readString(); 57 byte[] data = in.createByteArray(); 58 59 T proto = null; 60 61 try { 62 // Check that the provided class is a subclass of MessageNano before executing any code 63 Class<?> clazz = 64 Class.forName(className, false /*initialize*/, this.getClass().getClassLoader()) 65 .asSubclass(MessageNano.class); 66 Object instance = clazz.getConstructor().newInstance(); 67 proto = (T) instance; 68 MessageNano.mergeFrom(proto, data); 69 } catch (ClassNotFoundException e) { 70 Log.e(TAG, "Exception trying to create proto from parcel", e); 71 } catch (NoSuchMethodException e) { 72 Log.e(TAG, "Exception trying to create proto from parcel", e); 73 } catch (InvocationTargetException e) { 74 Log.e(TAG, "Exception trying to create proto from parcel", e); 75 } catch (IllegalAccessException e) { 76 Log.e(TAG, "Exception trying to create proto from parcel", e); 77 } catch (InstantiationException e) { 78 Log.e(TAG, "Exception trying to create proto from parcel", e); 79 } catch (InvalidProtocolBufferNanoException e) { 80 Log.e(TAG, "Exception trying to create proto from parcel", e); 81 } 82 83 return proto; 84 } 85 86 @SuppressWarnings("unchecked") 87 @Override 88 public T[] newArray(int i) { 89 return (T[]) Array.newInstance(mClazz, i); 90 } 91 92 static <T extends MessageNano> void writeToParcel(Class<T> clazz, MessageNano message, 93 Parcel out) { 94 out.writeString(clazz.getName()); 95 out.writeByteArray(MessageNano.toByteArray(message)); 96 } 97 } 98
