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8053: Add GetPooledTransactionsFromPeerTask and appropriate usage
Signed-off-by: Matilda Clerke <[email protected]>
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79 changes: 79 additions & 0 deletions
79
...yperledger/besu/ethereum/eth/manager/peertask/task/GetPooledTransactionsFromPeerTask.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| /* | ||
| * Copyright contributors to Besu. | ||
| * | ||
| * 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 | ||
| */ | ||
| package org.hyperledger.besu.ethereum.eth.manager.peertask.task; | ||
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|
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| import org.hyperledger.besu.datatypes.Hash; | ||
| import org.hyperledger.besu.ethereum.core.Transaction; | ||
| import org.hyperledger.besu.ethereum.eth.EthProtocol; | ||
| import org.hyperledger.besu.ethereum.eth.manager.EthPeer; | ||
| import org.hyperledger.besu.ethereum.eth.manager.peertask.InvalidPeerTaskResponseException; | ||
| import org.hyperledger.besu.ethereum.eth.manager.peertask.PeerTask; | ||
| import org.hyperledger.besu.ethereum.eth.manager.peertask.PeerTaskValidationResponse; | ||
| import org.hyperledger.besu.ethereum.eth.messages.GetPooledTransactionsMessage; | ||
| import org.hyperledger.besu.ethereum.eth.messages.PooledTransactionsMessage; | ||
| import org.hyperledger.besu.ethereum.p2p.rlpx.wire.MessageData; | ||
| import org.hyperledger.besu.ethereum.p2p.rlpx.wire.SubProtocol; | ||
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|
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| import java.util.List; | ||
| import java.util.function.Predicate; | ||
|
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| public class GetPooledTransactionsFromPeerTask implements PeerTask<List<Transaction>> { | ||
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| private final List<Hash> hashes; | ||
|
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| public GetPooledTransactionsFromPeerTask(final List<Hash> hashes) { | ||
| this.hashes = hashes.stream().distinct().toList(); | ||
| } | ||
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| @Override | ||
| public SubProtocol getSubProtocol() { | ||
| return EthProtocol.get(); | ||
| } | ||
|
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| @Override | ||
| public MessageData getRequestMessage() { | ||
| return GetPooledTransactionsMessage.create(hashes); | ||
| } | ||
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| @Override | ||
| public List<Transaction> processResponse(final MessageData messageData) | ||
| throws InvalidPeerTaskResponseException { | ||
| final PooledTransactionsMessage pooledTransactionsMessage = | ||
| PooledTransactionsMessage.readFrom(messageData); | ||
| final List<Transaction> responseTransactions = pooledTransactionsMessage.transactions(); | ||
| if (responseTransactions.size() != hashes.size()) { | ||
| throw new InvalidPeerTaskResponseException( | ||
| "Response transaction count does not match request hash count"); | ||
| } | ||
| return responseTransactions; | ||
| } | ||
|
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| @Override | ||
| public Predicate<EthPeer> getPeerRequirementFilter() { | ||
| return (peer) -> true; | ||
| } | ||
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| @Override | ||
| public PeerTaskValidationResponse validateResult(final List<Transaction> result) { | ||
| if (!result.stream().allMatch((t) -> hashes.contains(t.getHash()))) { | ||
| return PeerTaskValidationResponse.RESULTS_DO_NOT_MATCH_QUERY; | ||
| } | ||
| return PeerTaskValidationResponse.RESULTS_VALID_AND_GOOD; | ||
| } | ||
|
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| public List<Hash> getHashes() { | ||
| return hashes; | ||
| } | ||
| } |
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