mirror of https://github.com/hyperledger/besu
Add FlatDbStrategy (#5901)
* move FlatDbReader to FlatDbStrategy (including writes), add getNearestTo Signed-off-by: garyschulte <garyschulte@gmail.com>pull/5939/head
garyschulte
1 year ago
committed by
GitHub
parent
9d7ee2b52b
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d81e1f3042
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/* |
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* Copyright Hyperledger Besu Contributors. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with |
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* the License. You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on |
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* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the |
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* specific language governing permissions and limitations under the License. |
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* |
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* SPDX-License-Identifier: Apache-2.0 |
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* |
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*/ |
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package org.hyperledger.besu.services.kvstore; |
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import static org.assertj.core.api.Assertions.assertThat; |
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import static org.hyperledger.besu.services.kvstore.InMemoryKeyValueStorage.SEGMENT_IDENTIFIER; |
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import org.hyperledger.besu.kvstore.AbstractKeyValueStorageTest; |
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import org.hyperledger.besu.plugin.services.storage.SegmentedKeyValueStorage; |
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import org.hyperledger.besu.plugin.services.storage.SegmentedKeyValueStorageTransaction; |
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import java.util.stream.IntStream; |
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import org.apache.tuweni.bytes.Bytes; |
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import org.junit.jupiter.api.Test; |
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public abstract class AbstractSegmentedKeyValueStorageTest extends AbstractKeyValueStorageTest { |
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public abstract SegmentedKeyValueStorage createSegmentedStore(); |
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@Test |
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public void assertSegmentedIsNearestTo() throws Exception { |
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try (final var store = this.createSegmentedStore()) { |
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// create 10 entries
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final SegmentedKeyValueStorageTransaction tx = store.startTransaction(); |
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IntStream.range(1, 10) |
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.forEach( |
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i -> { |
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final byte[] key = bytesFromHexString("000" + i); |
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final byte[] value = bytesFromHexString("0FFF"); |
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tx.put(SEGMENT_IDENTIFIER, key, value); |
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// different common prefix, and reversed order of bytes:
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final byte[] key2 = bytesFromHexString("010" + (10 - i)); |
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final byte[] value2 = bytesFromHexString("0FFF"); |
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tx.put(SEGMENT_IDENTIFIER, key2, value2); |
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}); |
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tx.commit(); |
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// assert 0009 is closest to 000F
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var val = store.getNearestTo(SEGMENT_IDENTIFIER, Bytes.fromHexString("000F")); |
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assertThat(val).isPresent(); |
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assertThat(val.get().key()).isEqualTo(Bytes.fromHexString("0009")); |
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// assert 0109 is closest to 010D
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var val2 = store.getNearestTo(SEGMENT_IDENTIFIER, Bytes.fromHexString("010D")); |
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assertThat(val2).isPresent(); |
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assertThat(val2.get().key()).isEqualTo(Bytes.fromHexString("0109")); |
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// assert 0103 is closest to 0103
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var val3 = store.getNearestTo(SEGMENT_IDENTIFIER, Bytes.fromHexString("0103")); |
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assertThat(val3).isPresent(); |
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assertThat(val3.get().key()).isEqualTo(Bytes.fromHexString("0103")); |
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// assert 0003 is closest to 0003
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var val4 = store.getNearestTo(SEGMENT_IDENTIFIER, Bytes.fromHexString("0003")); |
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assertThat(val4).isPresent(); |
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assertThat(val4.get().key()).isEqualTo(Bytes.fromHexString("0003")); |
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// assert 0001 is closest to 0001
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var val5 = store.getNearestTo(SEGMENT_IDENTIFIER, Bytes.fromHexString("0001")); |
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assertThat(val5).isPresent(); |
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assertThat(val5.get().key()).isEqualTo(Bytes.fromHexString("0001")); |
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// assert 0000 is not present
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var val6 = store.getNearestTo(SEGMENT_IDENTIFIER, Bytes.fromHexString("0000")); |
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assertThat(val6).isNotPresent(); |
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} |
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} |
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} |
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@ -0,0 +1,33 @@ |
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/* |
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* Copyright Hyperledger Besu Contributors. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with |
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* the License. You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0
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* |
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* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on |
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* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the |
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* specific language governing permissions and limitations under the License. |
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* |
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* SPDX-License-Identifier: Apache-2.0 |
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* |
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*/ |
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package org.hyperledger.besu.services.kvstore; |
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import static org.hyperledger.besu.services.kvstore.InMemoryKeyValueStorage.SEGMENT_IDENTIFIER; |
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import org.hyperledger.besu.plugin.services.storage.KeyValueStorage; |
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import org.hyperledger.besu.plugin.services.storage.SegmentedKeyValueStorage; |
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public class LayeredKeyValueStorageTest extends AbstractSegmentedKeyValueStorageTest { |
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@Override |
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protected KeyValueStorage createStore() { |
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return new SegmentedKeyValueStorageAdapter(SEGMENT_IDENTIFIER, createSegmentedStore()); |
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} |
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@Override |
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public SegmentedKeyValueStorage createSegmentedStore() { |
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return new LayeredKeyValueStorage(new SegmentedInMemoryKeyValueStorage()); |
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} |
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} |
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