stevenzwu commented on code in PR #6160: URL: https://github.com/apache/iceberg/pull/6160#discussion_r1128152554
########## flink/v1.16/flink/src/main/java/org/apache/iceberg/flink/source/assigner/LocalitySplitAssigner.java: ########## @@ -0,0 +1,165 @@ +/* + * 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.iceberg.flink.source.assigner; + +import java.util.ArrayDeque; +import java.util.Collection; +import java.util.Deque; +import java.util.Iterator; +import java.util.Map; +import java.util.Set; +import java.util.concurrent.CompletableFuture; +import java.util.stream.Collectors; +import java.util.stream.Stream; +import javax.annotation.Nullable; +import org.apache.flink.annotation.Internal; +import org.apache.iceberg.flink.source.split.IcebergSourceSplit; +import org.apache.iceberg.flink.source.split.IcebergSourceSplitState; +import org.apache.iceberg.flink.source.split.IcebergSourceSplitStatus; +import org.apache.iceberg.relocated.com.google.common.collect.Maps; +import org.apache.iceberg.relocated.com.google.common.collect.Sets; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +@Internal +public class LocalitySplitAssigner implements SplitAssigner { + private static final Logger LOG = LoggerFactory.getLogger(LocalitySplitAssigner.class); + + private static final String DEFAULT_HOSTNAME = "hostname"; + private final Map<Set<String>, Deque<IcebergSourceSplit>> pendingSplits; + private CompletableFuture<Void> availableFuture; + + public LocalitySplitAssigner() { + this.pendingSplits = Maps.newHashMap(); + } + + public LocalitySplitAssigner(Collection<IcebergSourceSplitState> assignerState) { + this.pendingSplits = Maps.newHashMap(); + Stream<IcebergSourceSplit> splits = assignerState.stream().map(IcebergSourceSplitState::split); + addSplits(splits.collect(Collectors.toList())); Review Comment: yes, I meant shallow copy. the Split object is not cloned. I was saying we can avoid the shallow copy too. but I guess it is not important. -- 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: issues-unsubscr...@iceberg.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@iceberg.apache.org For additional commands, e-mail: issues-h...@iceberg.apache.org
