io.atomix.raft.storage.log.entry.SerializedApplicationEntry Maven / Gradle / Ivy
The newest version!
/*
* Copyright © 2020 camunda services GmbH ([email protected])
*
* 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 io.atomix.raft.storage.log.entry;
import io.atomix.raft.storage.serializer.RaftEntrySerializer;
import io.atomix.raft.storage.serializer.RaftEntrySerializer.SerializedBufferWriterAdapter;
import io.camunda.zeebe.util.buffer.BufferWriter;
import io.camunda.zeebe.util.buffer.DirectBufferWriter;
import java.nio.ByteBuffer;
import org.agrona.DirectBuffer;
import org.agrona.concurrent.UnsafeBuffer;
/**
* Stores an entry that contains serialized records, ordered by their position; the lowestPosition
* and highestPosition metadata allow for fast binary search over a collection of entries to quickly
* find a particular record.
*/
public record SerializedApplicationEntry(
long lowestPosition, long highestPosition, DirectBuffer data) implements ApplicationEntry {
public SerializedApplicationEntry(
final long lowestPosition, final long highestPosition, final ByteBuffer data) {
this(lowestPosition, highestPosition, new UnsafeBuffer(data));
}
@Override
public BufferWriter toSerializable(final long term, final RaftEntrySerializer serializer) {
return new SerializedBufferWriterAdapter(
() -> serializer.getApplicationEntrySerializedLength(this),
(buffer, offset) -> serializer.writeApplicationEntry(term, this, buffer, offset));
}
@Override
public BufferWriter dataWriter() {
return new DirectBufferWriter().wrap(data);
}
}