Merge "Adding typed Parcel read APIs for Serializable." am: bce40e7c6e am:... (0c7e5221) · Commits · e / os / android_frameworks_base

core/api/current.txt

+1 −0

Original line number	Diff line number	Diff line
		@@ -31639,6 +31639,7 @@ package android.os {
		method @Nullable public android.os.PersistableBundle readPersistableBundle();
		method @Nullable public android.os.PersistableBundle readPersistableBundle(@Nullable ClassLoader);
		method @Nullable public java.io.Serializable readSerializable();
		method @Nullable public <T extends java.io.Serializable> T readSerializable(@Nullable ClassLoader, @NonNull Class<T>);
		method @NonNull public android.util.Size readSize();
		method @NonNull public android.util.SizeF readSizeF();
		method @Nullable public <T> android.util.SparseArray<T> readSparseArray(@Nullable ClassLoader);

core/java/android/os/Parcel.java

+64 −19

Original line number	Diff line number	Diff line
		@@ -2448,9 +2448,9 @@ public final class Parcel {

		writeByteArray(baos.toByteArray());
		} catch (IOException ioe) {
		throw new RuntimeException("Parcelable encountered " +
		"IOException writing serializable object (name = " + name +
		")", ioe);
		throw new BadParcelableException("Parcelable encountered "
		+ "IOException writing serializable object (name = "
		+ name + ")", ioe);
		}
		}

		@@ -3818,7 +3818,7 @@ public final class Parcel {
		break;

		case VAL_SERIALIZABLE:
		object = readSerializable(loader);
		object = readSerializableInternal(loader, clazz);
		break;

		case VAL_PARCELABLEARRAY:
		@@ -4144,12 +4144,37 @@ public final class Parcel {
		* wasn't found in the parcel.
		*/
		@Nullable
		public final Serializable readSerializable() {
		return readSerializable(null);
		public Serializable readSerializable() {
		return readSerializableInternal(/* loader / null, / clazz */ null);
		}

		/**
		* Same as {@link #readSerializable()} but accepts {@code loader} parameter
		* as the primary classLoader for resolving the Serializable class; and {@code clazz} parameter
		* as the required type.
		*
		* @throws BadParcelableException Throws BadParcelableException if the item to be deserialized
		* is not an instance of that class or any of its children class or there there was an error
		* deserializing the object.
		*/
		@Nullable
		public <T extends Serializable> T readSerializable(@Nullable ClassLoader loader,
		@NonNull Class<T> clazz) {
		Objects.requireNonNull(clazz);
		return readSerializableInternal(loader, clazz);
		}

		/**
		* @param clazz The type of the serializable expected or {@code null} for performing no checks
		*/
		@Nullable
		private final Serializable readSerializable(@Nullable final ClassLoader loader) {
		private <T> T readSerializableInternal(@Nullable final ClassLoader loader,
		@Nullable Class<T> clazz) {
		if (clazz != null && !Serializable.class.isAssignableFrom(clazz)) {
		throw new BadParcelableException("About to unparcel a serializable object "
		+ " but class required " + clazz.getName() + " is not Serializable");
		}

		String name = readString();
		if (name == null) {
		// For some reason we were unable to read the name of the Serializable (either there
		@@ -4158,9 +4183,20 @@ public final class Parcel {
		return null;
		}

		try {
		if (clazz != null && loader != null) {
		// If custom classloader is provided, resolve the type of serializable using the
		// name, then check the type before deserialization. As in this case we can resolve
		// the class the same way as ObjectInputStream, using the provided classloader.
		Class<?> cl = Class.forName(name, false, loader);
		if (!clazz.isAssignableFrom(cl)) {
		throw new BadParcelableException("Serializable object "
		+ cl.getName() + " is not a subclass of required class "
		+ clazz.getName() + " provided in the parameter");
		}
		}
		byte[] serializedData = createByteArray();
		ByteArrayInputStream bais = new ByteArrayInputStream(serializedData);
		try {
		ObjectInputStream ois = new ObjectInputStream(bais) {
		@Override
		protected Class<?> resolveClass(ObjectStreamClass osClass)
		@@ -4168,21 +4204,30 @@ public final class Parcel {
		// try the custom classloader if provided
		if (loader != null) {
		Class<?> c = Class.forName(osClass.getName(), false, loader);
		if (c != null) {
		return c;
		}
		return Objects.requireNonNull(c);
		}
		return super.resolveClass(osClass);
		}
		};
		return (Serializable) ois.readObject();
		T object = (T) ois.readObject();
		if (clazz != null && loader == null) {
		// If custom classloader is not provided, check the type of the serializable using
		// the deserialized object, as we cannot resolve the class the same way as
		// ObjectInputStream.
		if (!clazz.isAssignableFrom(object.getClass())) {
		throw new BadParcelableException("Serializable object "
		+ object.getClass().getName() + " is not a subclass of required class "
		+ clazz.getName() + " provided in the parameter");
		}
		}
		return object;
		} catch (IOException ioe) {
		throw new RuntimeException("Parcelable encountered " +
		"IOException reading a Serializable object (name = " + name +
		")", ioe);
		throw new BadParcelableException("Parcelable encountered "
		+ "IOException reading a Serializable object (name = "
		+ name + ")", ioe);
		} catch (ClassNotFoundException cnfe) {
		throw new RuntimeException("Parcelable encountered " +
		"ClassNotFoundException reading a Serializable object (name = "
		throw new BadParcelableException("Parcelable encountered "
		+ "ClassNotFoundException reading a Serializable object (name = "
		+ name + ")", cnfe);
		}
		}