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Batching backward sync (hyperledger#3532)
* Backward sync now batches requests Signed-off-by: Jiri Peinlich <[email protected]>
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...erledger/besu/ethereum/eth/manager/task/RetryingGetHeadersEndingAtFromPeerByHashTask.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| /* | ||
| * Copyright Hyperledger Besu Contributors. | ||
| * | ||
| * 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. | ||
| * | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
|
|
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| package org.hyperledger.besu.ethereum.eth.manager.task; | ||
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| import static com.google.common.base.Preconditions.checkNotNull; | ||
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| import org.hyperledger.besu.datatypes.Hash; | ||
| import org.hyperledger.besu.ethereum.core.BlockHeader; | ||
| import org.hyperledger.besu.ethereum.eth.manager.EthContext; | ||
| import org.hyperledger.besu.ethereum.eth.manager.EthPeer; | ||
| import org.hyperledger.besu.ethereum.mainnet.ProtocolSchedule; | ||
| import org.hyperledger.besu.plugin.services.MetricsSystem; | ||
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|
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| import java.util.List; | ||
| import java.util.Optional; | ||
| import java.util.concurrent.CompletableFuture; | ||
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| import com.google.common.annotations.VisibleForTesting; | ||
|
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| public class RetryingGetHeadersEndingAtFromPeerByHashTask | ||
| extends AbstractRetryingPeerTask<List<BlockHeader>> { | ||
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| private final Hash referenceHash; | ||
| private final ProtocolSchedule protocolSchedule; | ||
| private final long minimumRequiredBlockNumber; | ||
| private final int count; | ||
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| @VisibleForTesting | ||
| RetryingGetHeadersEndingAtFromPeerByHashTask( | ||
| final ProtocolSchedule protocolSchedule, | ||
| final EthContext ethContext, | ||
| final Hash referenceHash, | ||
| final long minimumRequiredBlockNumber, | ||
| final int count, | ||
| final MetricsSystem metricsSystem) { | ||
| super(ethContext, 3, List::isEmpty, metricsSystem); | ||
| this.protocolSchedule = protocolSchedule; | ||
| this.minimumRequiredBlockNumber = minimumRequiredBlockNumber; | ||
| this.count = count; | ||
| checkNotNull(referenceHash); | ||
| this.referenceHash = referenceHash; | ||
| } | ||
|
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| public static RetryingGetHeadersEndingAtFromPeerByHashTask endingAtHash( | ||
| final ProtocolSchedule protocolSchedule, | ||
| final EthContext ethContext, | ||
| final Hash referenceHash, | ||
| final long minimumRequiredBlockNumber, | ||
| final int count, | ||
| final MetricsSystem metricsSystem) { | ||
| return new RetryingGetHeadersEndingAtFromPeerByHashTask( | ||
| protocolSchedule, | ||
| ethContext, | ||
| referenceHash, | ||
| minimumRequiredBlockNumber, | ||
| count, | ||
| metricsSystem); | ||
| } | ||
|
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| @Override | ||
| protected CompletableFuture<List<BlockHeader>> executePeerTask( | ||
| final Optional<EthPeer> assignedPeer) { | ||
| final AbstractGetHeadersFromPeerTask task = | ||
| GetHeadersFromPeerByHashTask.endingAtHash( | ||
| protocolSchedule, | ||
| getEthContext(), | ||
| referenceHash, | ||
| minimumRequiredBlockNumber, | ||
| count, | ||
| getMetricsSystem()); | ||
| assignedPeer.ifPresent(task::assignPeer); | ||
| return executeSubTask(task::run) | ||
| .thenApply( | ||
| peerResult -> { | ||
| result.complete(peerResult.getResult()); | ||
| return peerResult.getResult(); | ||
| }); | ||
| } | ||
| } |
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