HDDS-7984. [Snapshot] Store Ozone keys ever renamed in renamedKeyTable for efficient lookup in SnapshotDeletingService #4333
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| /** | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with this | ||
| * work for additional information regarding copyright ownership. The ASF | ||
| * licenses this file to you 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 | ||
| * <p> | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * <p> | ||
| * 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 org.apache.hadoop.ozone.om.helpers; | ||
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| import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos.RepeatedString; | ||
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| import java.io.IOException; | ||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
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| /** | ||
| * Argument for renamedKeyTable. Helps to store List<String> which represents | ||
| * all the renames that happened to particular key in between snapshots. | ||
| */ | ||
| public class OmKeyRenameInfo { | ||
| private List<String> omKeyRenameInfoList; | ||
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| public OmKeyRenameInfo(List<String> omKeyRenameInfoList) { | ||
| this.omKeyRenameInfoList = omKeyRenameInfoList; | ||
| } | ||
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| public OmKeyRenameInfo(String keyRenameInfo) { | ||
| this.omKeyRenameInfoList = new ArrayList<>(); | ||
| this.omKeyRenameInfoList.add(keyRenameInfo); | ||
| } | ||
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| public void addOmKeyRenameInfo(String keyRenameInfo) { | ||
| this.omKeyRenameInfoList.add(keyRenameInfo); | ||
| } | ||
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| public List<String> getOmKeyRenameInfoList() { | ||
| return omKeyRenameInfoList; | ||
| } | ||
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| public List<String> cloneOmKeyRenameInfoList() { | ||
| return new ArrayList<>(omKeyRenameInfoList); | ||
| } | ||
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| public static OmKeyRenameInfo getFromProto(RepeatedString | ||
| repeatedString) throws IOException { | ||
| List<String> list = new ArrayList<>(repeatedString.getKeyNameList()); | ||
| return new OmKeyRenameInfo.Builder().setOmKeyRenameList(list).build(); | ||
| } | ||
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| public RepeatedString getProto() { | ||
| List<String> list = new ArrayList<>(cloneOmKeyRenameInfoList()); | ||
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| RepeatedString.Builder builder = RepeatedString.newBuilder() | ||
| .addAllKeyName(list); | ||
| return builder.build(); | ||
| } | ||
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| public OmKeyRenameInfo copyObject() { | ||
| return new OmKeyRenameInfo(new ArrayList<>(omKeyRenameInfoList)); | ||
| } | ||
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| /** | ||
| * Builder of OmKeyRenameInfo. | ||
| */ | ||
| public static class Builder { | ||
| private List<String> omKeyRenameList; | ||
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| public Builder() { } | ||
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| public OmKeyRenameInfo.Builder setOmKeyRenameList(List<String> stringList) { | ||
| this.omKeyRenameList = stringList; | ||
| return this; | ||
| } | ||
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| public OmKeyRenameInfo build() { | ||
| return new OmKeyRenameInfo(omKeyRenameList); | ||
| } | ||
| } | ||
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| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| /** | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with this | ||
| * work for additional information regarding copyright ownership. The ASF | ||
| * licenses this file to you 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 | ||
| * <p> | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * <p> | ||
| * 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 org.apache.hadoop.ozone.om.codec; | ||
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| import com.google.common.base.Preconditions; | ||
| import com.google.protobuf.InvalidProtocolBufferException; | ||
| import org.apache.hadoop.hdds.utils.db.Codec; | ||
| import org.apache.hadoop.ozone.om.helpers.OmKeyRenameInfo; | ||
| import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos.RepeatedString; | ||
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| import java.io.IOException; | ||
|
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| /** | ||
| * Codec to encode OmKeyRenameInfo as byte array. | ||
| */ | ||
| public class OmKeyRenameInfoCodec implements Codec<OmKeyRenameInfo> { | ||
| @Override | ||
| public byte[] toPersistedFormat(OmKeyRenameInfo object) throws IOException { | ||
| Preconditions | ||
| .checkNotNull(object, "Null object can't be converted to byte array."); | ||
| return object.getProto().toByteArray(); | ||
| } | ||
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| @Override | ||
| public OmKeyRenameInfo fromPersistedFormat(byte[] rawData) | ||
| throws IOException { | ||
| Preconditions.checkNotNull(rawData, | ||
| "Null byte array can't converted to real object."); | ||
| try { | ||
| return OmKeyRenameInfo.getFromProto(RepeatedString.parseFrom(rawData)); | ||
| } catch (InvalidProtocolBufferException ex) { | ||
| throw new IllegalArgumentException( | ||
| "Can't encode the the raw data from the byte array", ex); | ||
| } | ||
| } | ||
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| @Override | ||
| public OmKeyRenameInfo copyObject(OmKeyRenameInfo object) { | ||
| return object.copyObject(); | ||
| } | ||
| } |
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