com.google.devtools.build.lib.skyframe.serialization.ImmutableSetRuntimeCodec.java Source code

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Here is the source code for com.google.devtools.build.lib.skyframe.serialization.ImmutableSetRuntimeCodec.java

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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.common.collect.ImmutableSet;
import com.google.protobuf.CodedInputStream;
import com.google.protobuf.CodedOutputStream;
import java.io.IOException;

/** {@link ObjectCodec} for {@link ImmutableSet}. */
@SuppressWarnings("rawtypes") // Intentional erasure of ImmutableSet.
class ImmutableSetRuntimeCodec implements ObjectCodec<ImmutableSet> {
    @Override
    public Class<ImmutableSet> getEncodedClass() {
        return ImmutableSet.class;
    }

    @Override
    public void serialize(SerializationContext context, ImmutableSet object, CodedOutputStream codedOut)
            throws SerializationException, IOException {
        codedOut.writeInt32NoTag(object.size());
        for (Object obj : object) {
            context.serialize(obj, codedOut);
        }
    }

    @SuppressWarnings("unchecked") // Adding object to untyped builder.
    @Override
    public ImmutableSet deserialize(DeserializationContext context, CodedInputStream codedIn)
            throws SerializationException, IOException {
        int size = codedIn.readInt32();
        ImmutableSet.Builder builder = ImmutableSet.builderWithExpectedSize(size);
        for (int i = 0; i < size; i++) {
            // Don't inline so builder knows this is an object, not an array.
            Object item = context.deserialize(codedIn);
            builder.add(item);
        }
        return builder.build();
    }
}