| // Copyright 2017 The Bazel Authors. All rights reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package com.google.devtools.build.lib.skyframe.serialization; |
| |
| import com.google.protobuf.ByteString; |
| import com.google.protobuf.CodedInputStream; |
| import com.google.protobuf.CodedOutputStream; |
| import com.google.protobuf.MessageLite; |
| import java.io.ByteArrayInputStream; |
| import java.io.IOException; |
| import java.io.NotSerializableException; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectOutputStream; |
| import java.nio.ByteBuffer; |
| |
| /** Naive ObjectCodec using Java native Serialization. Not performant, but a good fallback */ |
| class JavaSerializableCodec implements ObjectCodec<Object> { |
| |
| private static boolean isBlacklistedForJavaSerialization(Class<?> clazz) { |
| return MessageLite.class.isAssignableFrom(clazz); |
| } |
| |
| @Override |
| public Class<Object> getEncodedClass() { |
| return Object.class; |
| } |
| |
| @Override |
| public void serialize(SerializationContext context, Object obj, CodedOutputStream codedOut) |
| throws SerializationException, IOException { |
| if (isBlacklistedForJavaSerialization(obj.getClass())) { |
| throw new SerializationException( |
| "Java serialization is not permitted for class " + obj.getClass()); |
| } |
| ByteString.Output out = ByteString.newOutput(); |
| ObjectOutputStream objOut = new ObjectOutputStream(out); |
| try { |
| objOut.writeObject(obj); |
| } catch (NotSerializableException e) { |
| Class<?> clazz = obj.getClass(); |
| Class<?> parentClass = null; |
| if (clazz.isAnonymousClass() || clazz.isSynthetic()) { |
| parentClass = clazz.getSuperclass(); |
| } |
| throw new SerializationException.NoCodecException( |
| "Object " |
| + obj |
| + " of type " |
| + obj.getClass() |
| + (parentClass == null ? "" : " (parent " + parentClass + ")") |
| + " not serializable", |
| e); |
| } catch (NotSerializableRuntimeException e) { |
| // Values that inherit from Serializable but actually aren't serializable. |
| throw new SerializationException.NoCodecException( |
| "Object " + obj + " of type " + obj.getClass() + " not serializable", e); |
| } |
| codedOut.writeBytesNoTag(out.toByteString()); |
| } |
| |
| @Override |
| public Object deserialize(DeserializationContext context, CodedInputStream codedIn) |
| throws SerializationException, IOException { |
| try { |
| // Get the ByteBuffer as it is potentially a view of the underlying bytes (not a copy), which |
| // is more efficient. |
| ByteBuffer buffer = codedIn.readByteBuffer(); |
| ObjectInputStream objIn = |
| new ObjectInputStream( |
| new ByteArrayInputStream(buffer.array(), buffer.arrayOffset(), buffer.remaining())); |
| return objIn.readObject(); |
| } catch (ClassNotFoundException e) { |
| throw new SerializationException("Java deserialization failed", e); |
| } |
| } |
| |
| /** Disables auto-registration. */ |
| @SuppressWarnings("unused") // Used reflectively. |
| private static class JavaSerializableCodecRegisterer |
| implements CodecRegisterer<JavaSerializableCodec> {} |
| } |