org.apache.flink.connector.pulsar.source.reader.PulsarSourceReader Maven / Gradle / Ivy
/*
* Licensed 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.connector.pulsar.source.reader;
import org.apache.flink.api.connector.source.SourceReaderContext;
import org.apache.flink.configuration.Configuration;
import org.apache.flink.connector.base.source.reader.RecordEmitter;
import org.apache.flink.connector.base.source.reader.RecordsWithSplitIds;
import org.apache.flink.connector.base.source.reader.SingleThreadMultiplexSourceReaderBase;
import org.apache.flink.connector.base.source.reader.splitreader.SplitReader;
import org.apache.flink.connector.base.source.reader.synchronization.FutureCompletingBlockingQueue;
import org.apache.flink.connector.pulsar.source.split.PulsarPartitionSplit;
import org.apache.flink.util.function.RunnableWithException;
import java.util.Map;
import java.util.function.Supplier;
/**
* The source reader for Pulsar partitions.
*/
public class PulsarSourceReader
extends SingleThreadMultiplexSourceReaderBase, T, PulsarPartitionSplit, PulsarPartitionSplit> {
private final RunnableWithException closeCallback;
public PulsarSourceReader(
FutureCompletingBlockingQueue>> elementsQueue,
Supplier, PulsarPartitionSplit>> splitReaderSupplier,
RecordEmitter, T, PulsarPartitionSplit> recordEmitter,
Configuration config,
SourceReaderContext context,
RunnableWithException closeCallback) {
super(elementsQueue, splitReaderSupplier, recordEmitter, config, context);
this.closeCallback = closeCallback;
}
@Override
public void close() throws Exception {
super.close();
closeCallback.run();
}
@Override
protected void onSplitFinished(Map finishedSplitIds) {
}
@Override
protected PulsarPartitionSplit initializedState(PulsarPartitionSplit split) {
return split.clone();
}
@Override
protected PulsarPartitionSplit toSplitType(String splitId, PulsarPartitionSplit split) {
return split.clone();
}
}