/*
* 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.flink.streaming.connectors.kinesis.proxy;
import org.apache.flink.streaming.connectors.kinesis.model.KinesisStreamShard;
import java.util.LinkedList;
import java.util.List;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
/**
* Basic model class to bundle the shards retrieved from Kinesis on a {@link KinesisProxyInterface#getShardList(Map)} call.
*/
public class GetShardListResult {
private final Map<String, LinkedList<KinesisStreamShard>> streamsToRetrievedShardList = new HashMap<>();
public void addRetrievedShardToStream(String stream, KinesisStreamShard retrievedShard) {
if (!streamsToRetrievedShardList.containsKey(stream)) {
streamsToRetrievedShardList.put(stream, new LinkedList<KinesisStreamShard>());
}
streamsToRetrievedShardList.get(stream).add(retrievedShard);
}
public void addRetrievedShardsToStream(String stream, List<KinesisStreamShard> retrievedShards) {
if (retrievedShards.size() != 0) {
if (!streamsToRetrievedShardList.containsKey(stream)) {
streamsToRetrievedShardList.put(stream, new LinkedList<KinesisStreamShard>());
}
streamsToRetrievedShardList.get(stream).addAll(retrievedShards);
}
}
public List<KinesisStreamShard> getRetrievedShardListOfStream(String stream) {
if (!streamsToRetrievedShardList.containsKey(stream)) {
return null;
} else {
return streamsToRetrievedShardList.get(stream);
}
}
public KinesisStreamShard getLastSeenShardOfStream(String stream) {
if (!streamsToRetrievedShardList.containsKey(stream)) {
return null;
} else {
return streamsToRetrievedShardList.get(stream).getLast();
}
}
public boolean hasRetrievedShards() {
return !streamsToRetrievedShardList.isEmpty();
}
public Set<String> getStreamsWithRetrievedShards() {
return streamsToRetrievedShardList.keySet();
}
}