sashapolo commented on code in PR #1490: URL: https://github.com/apache/ignite-3/pull/1490#discussion_r1082360088
########## modules/metastorage/src/main/java/org/apache/ignite/internal/metastorage/server/raft/MetaStorageWriteHandler.java: ########## @@ -0,0 +1,245 @@ +/* + * 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 + * + * 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 org.apache.ignite.internal.metastorage.server.raft; + +import java.util.ArrayList; +import java.util.Collection; +import java.util.List; +import org.apache.ignite.internal.metastorage.Entry; +import org.apache.ignite.internal.metastorage.command.GetAndPutAllCommand; +import org.apache.ignite.internal.metastorage.command.GetAndPutCommand; +import org.apache.ignite.internal.metastorage.command.GetAndRemoveAllCommand; +import org.apache.ignite.internal.metastorage.command.GetAndRemoveCommand; +import org.apache.ignite.internal.metastorage.command.InvokeCommand; +import org.apache.ignite.internal.metastorage.command.MetaStorageCommandsFactory; +import org.apache.ignite.internal.metastorage.command.MultiInvokeCommand; +import org.apache.ignite.internal.metastorage.command.MultipleEntryResponse; +import org.apache.ignite.internal.metastorage.command.PutAllCommand; +import org.apache.ignite.internal.metastorage.command.PutCommand; +import org.apache.ignite.internal.metastorage.command.RemoveAllCommand; +import org.apache.ignite.internal.metastorage.command.RemoveCommand; +import org.apache.ignite.internal.metastorage.command.SingleEntryResponse; +import org.apache.ignite.internal.metastorage.command.info.CompoundConditionInfo; +import org.apache.ignite.internal.metastorage.command.info.ConditionInfo; +import org.apache.ignite.internal.metastorage.command.info.IfInfo; +import org.apache.ignite.internal.metastorage.command.info.OperationInfo; +import org.apache.ignite.internal.metastorage.command.info.SimpleConditionInfo; +import org.apache.ignite.internal.metastorage.command.info.StatementInfo; +import org.apache.ignite.internal.metastorage.command.info.UpdateInfo; +import org.apache.ignite.internal.metastorage.dsl.CompoundConditionType; +import org.apache.ignite.internal.metastorage.dsl.ConditionType; +import org.apache.ignite.internal.metastorage.dsl.Operation; +import org.apache.ignite.internal.metastorage.dsl.StatementResult; +import org.apache.ignite.internal.metastorage.dsl.Update; +import org.apache.ignite.internal.metastorage.server.AndCondition; +import org.apache.ignite.internal.metastorage.server.Condition; +import org.apache.ignite.internal.metastorage.server.ExistenceCondition; +import org.apache.ignite.internal.metastorage.server.If; +import org.apache.ignite.internal.metastorage.server.KeyValueStorage; +import org.apache.ignite.internal.metastorage.server.OrCondition; +import org.apache.ignite.internal.metastorage.server.RevisionCondition; +import org.apache.ignite.internal.metastorage.server.Statement; +import org.apache.ignite.internal.metastorage.server.TombstoneCondition; +import org.apache.ignite.internal.metastorage.server.ValueCondition; +import org.apache.ignite.internal.raft.WriteCommand; +import org.apache.ignite.internal.raft.service.CommandClosure; + +/** + * Class containing some common logic for Meta Storage Raft group listeners. + */ +class MetaStorageWriteHandler { + private final MetaStorageCommandsFactory commandsFactory = new MetaStorageCommandsFactory(); + + private final KeyValueStorage storage; + + MetaStorageWriteHandler(KeyValueStorage storage) { + this.storage = storage; + } + + /** + * Tries to process a {@link WriteCommand}, returning {@code true} if the command has been successfully processed or {@code false} + * if the command requires external processing. + */ + boolean handleWriteCommand(CommandClosure<WriteCommand> clo) { + WriteCommand command = clo.command(); + + if (command instanceof PutCommand) { + PutCommand putCmd = (PutCommand) command; + + storage.put(putCmd.key(), putCmd.value()); + + clo.result(null); + } else if (command instanceof GetAndPutCommand) { + GetAndPutCommand getAndPutCmd = (GetAndPutCommand) command; + + Entry e = storage.getAndPut(getAndPutCmd.key(), getAndPutCmd.value()); + + clo.result(new SingleEntryResponse(e.key(), e.value(), e.revision(), e.updateCounter())); + } else if (command instanceof PutAllCommand) { + PutAllCommand putAllCmd = (PutAllCommand) command; + + storage.putAll(putAllCmd.keys(), putAllCmd.values()); + + clo.result(null); + } else if (command instanceof GetAndPutAllCommand) { + GetAndPutAllCommand getAndPutAllCmd = (GetAndPutAllCommand) command; + + Collection<Entry> entries = storage.getAndPutAll(getAndPutAllCmd.keys(), getAndPutAllCmd.values()); + + List<SingleEntryResponse> resp = new ArrayList<>(entries.size()); + + for (Entry e : entries) { + resp.add(new SingleEntryResponse(e.key(), e.value(), e.revision(), e.updateCounter())); + } + + clo.result(new MultipleEntryResponse(resp)); + } else if (command instanceof RemoveCommand) { + RemoveCommand rmvCmd = (RemoveCommand) command; + + storage.remove(rmvCmd.key()); + + clo.result(null); + } else if (command instanceof GetAndRemoveCommand) { + GetAndRemoveCommand getAndRmvCmd = (GetAndRemoveCommand) command; + + Entry e = storage.getAndRemove(getAndRmvCmd.key()); + + clo.result(new SingleEntryResponse(e.key(), e.value(), e.revision(), e.updateCounter())); + } else if (command instanceof RemoveAllCommand) { + RemoveAllCommand rmvAllCmd = (RemoveAllCommand) command; + + storage.removeAll(rmvAllCmd.keys()); + + clo.result(null); + } else if (command instanceof GetAndRemoveAllCommand) { + GetAndRemoveAllCommand getAndRmvAllCmd = (GetAndRemoveAllCommand) command; + + Collection<Entry> entries = storage.getAndRemoveAll(getAndRmvAllCmd.keys()); + + List<SingleEntryResponse> resp = new ArrayList<>(entries.size()); + + for (Entry e : entries) { + resp.add(new SingleEntryResponse(e.key(), e.value(), e.revision(), e.updateCounter())); + } + + clo.result(new MultipleEntryResponse(resp)); Review Comment: Let's leave it as-is for now (this code was copy-pasted). I will likely change it when we will be migrating to reactive cursors. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: notifications-unsubscr...@ignite.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
