| /* |
| * 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.beam.sdk.io.gcp.bigtable.changestreams.restriction; |
| |
| import com.google.cloud.bigtable.data.v2.models.ChangeStreamContinuationToken; |
| import com.google.cloud.bigtable.data.v2.models.CloseStream; |
| import com.google.protobuf.Timestamp; |
| import java.io.Serializable; |
| import java.util.Objects; |
| import org.apache.beam.sdk.annotations.Internal; |
| import org.checkerframework.checker.nullness.qual.Nullable; |
| |
| /** |
| * Position for {@link ReadChangeStreamPartitionProgressTracker}. This represents contains |
| * information that allows a stream, along with the {@link |
| * org.apache.beam.sdk.io.gcp.bigtable.changestreams.model.PartitionRecord} to resume from a |
| * checkpoint. |
| * |
| * <p>It should contain either a continuation token which represents a position in the stream, or it |
| * can contain a close stream message which represents an end to the stream and the DoFn needs to |
| * stop. |
| */ |
| @Internal |
| public class StreamProgress implements Serializable { |
| private static final long serialVersionUID = -8597355120329526194L; |
| |
| private @Nullable ChangeStreamContinuationToken currentToken; |
| private @Nullable CloseStream closeStream; |
| private @Nullable Timestamp lowWatermark; |
| |
| public @Nullable ChangeStreamContinuationToken getCurrentToken() { |
| return currentToken; |
| } |
| |
| public @Nullable Timestamp getLowWatermark() { |
| return lowWatermark; |
| } |
| |
| public @Nullable CloseStream getCloseStream() { |
| return closeStream; |
| } |
| |
| public StreamProgress() {} |
| |
| public StreamProgress(@Nullable ChangeStreamContinuationToken token, Timestamp lowWatermark) { |
| this.currentToken = token; |
| this.lowWatermark = lowWatermark; |
| } |
| |
| public StreamProgress(@Nullable CloseStream closeStream) { |
| this.closeStream = closeStream; |
| } |
| |
| @Override |
| public boolean equals(@Nullable Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (!(o instanceof StreamProgress)) { |
| return false; |
| } |
| StreamProgress that = (StreamProgress) o; |
| return Objects.equals(getCurrentToken(), that.getCurrentToken()) |
| && Objects.equals(getLowWatermark(), that.getLowWatermark()) |
| && Objects.equals(getCloseStream(), that.getCloseStream()); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(getCurrentToken()); |
| } |
| |
| @Override |
| public String toString() { |
| return "StreamProgress{" |
| + "currentToken=" |
| + currentToken |
| + ", lowWatermark=" |
| + lowWatermark |
| + ", closeStream=" |
| + closeStream |
| + '}'; |
| } |
| } |