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// Copyright 2018 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.CodedInputStream;
import com.google.protobuf.CodedOutputStream;
import java.io.IOException;
import java.lang.reflect.Method;
import java.util.Arrays;
/** {@link ObjectCodec} for {@link Method}. */
class MethodCodec implements ObjectCodec<Method> {
@Override
public Class<Method> getEncodedClass() {
return Method.class;
}
@Override
public void serialize(SerializationContext context, Method obj, CodedOutputStream codedOut)
throws SerializationException, IOException {
context.serialize(obj.getDeclaringClass(), codedOut);
context.serialize(obj.getName(), codedOut);
Class<?>[] parameterTypes = obj.getParameterTypes();
codedOut.writeInt32NoTag(parameterTypes.length);
for (Class<?> parameter : parameterTypes) {
context.serialize(parameter, codedOut);
}
}
@Override
public Method deserialize(DeserializationContext context, CodedInputStream codedIn)
throws SerializationException, IOException {
Class<?> clazz = context.deserialize(codedIn);
String name = context.deserialize(codedIn);
Class<?>[] parameters = new Class<?>[codedIn.readInt32()];
for (int i = 0; i < parameters.length; i++) {
parameters[i] = context.deserialize(codedIn);
}
try {
return clazz.getDeclaredMethod(name, parameters);
} catch (NoSuchMethodException e) {
throw new SerializationException(
"Couldn't get method "
+ name
+ " in "
+ clazz
+ " with parameters "
+ Arrays.toString(parameters),
e);
}
}
}
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