[debezium] Rename DebeziumState to DebeziumOffset

flink-connector-debezium/src/main/java/com/alibaba/ververica/cdc/debezium/internal/DebeziumChangeConsumer.java

@@ -62,9 +62,9 @@ public class DebeziumChangeConsumer<T> implements DebeziumEngine.ChangeConsumer<
 
 	private final ErrorReporter errorReporter;
 
-	private final DebeziumState debeziumState;
+	private final DebeziumOffset debeziumOffset;
 
-	private final DebeziumStateSerializer stateSerializer;
+	private final DebeziumOffsetSerializer stateSerializer;
 
 	private boolean isInDbSnapshotPhase;
 
@@ -83,8 +83,8 @@ public class DebeziumChangeConsumer<T> implements DebeziumEngine.ChangeConsumer<
 		this.isInDbSnapshotPhase = isInDbSnapshotPhase;
 		this.debeziumCollector = new DebeziumCollector();
 		this.errorReporter = errorReporter;
-		this.debeziumState = new DebeziumState();
+		this.debeziumOffset = new DebeziumOffset();
-		this.stateSerializer = new DebeziumStateSerializer();
+		this.stateSerializer = new DebeziumOffsetSerializer();
 	}
 
 	@Override
@@ -159,8 +159,8 @@ public class DebeziumChangeConsumer<T> implements DebeziumEngine.ChangeConsumer<
 			sourceContext.collect(record);
 		}
 		// update offset to state
-		debeziumState.setSourcePartition(sourcePartition);
+		debeziumOffset.setSourcePartition(sourcePartition);
-		debeziumState.setSourceOffset(sourceOffset);
+		debeziumOffset.setSourceOffset(sourceOffset);
 	}
 
 	/**
@@ -171,11 +171,11 @@ public class DebeziumChangeConsumer<T> implements DebeziumEngine.ChangeConsumer<
 	public byte[] snapshotCurrentState() throws Exception {
 		// this method assumes that the checkpoint lock is held
 		assert Thread.holdsLock(checkpointLock);
-		if (debeziumState.sourceOffset == null || debeziumState.sourcePartition == null) {
+		if (debeziumOffset.sourceOffset == null || debeziumOffset.sourcePartition == null) {
 			return null;
 		}
 
-		return stateSerializer.serialize(debeziumState);
+		return stateSerializer.serialize(debeziumOffset);
 	}
 
 	private class DebeziumCollector implements Collector<T> {

flink-connector-debezium/src/main/java/com/alibaba/ververica/cdc/debezium/internal/DebeziumOffset.java

@@ -40,7 +40,7 @@ import java.util.Map;
  * "table_name"} and the sourceOffset as a Long containing the timestamp of the row.
  */
 @Internal
-public class DebeziumState {
+public class DebeziumOffset {
 
 	public Map<String, ?> sourcePartition;
 	public Map<String, ?> sourceOffset;
@@ -55,7 +55,7 @@ public class DebeziumState {
 
 	@Override
 	public String toString() {
-		return "DebeziumConsumerState{" +
+		return "DebeziumOffset{" +
 			"sourcePartition=" + sourcePartition +
 			", sourceOffset=" + sourceOffset +
 			'}';

flink-connector-debezium/src/main/java/com/alibaba/ververica/cdc/debezium/internal/DebeziumOffsetSerializer.java

@@ -25,19 +25,19 @@ import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.ObjectMap
 import java.io.IOException;
 
 /**
- * Serializer implementation for a {@link DebeziumState}.
+ * Serializer implementation for a {@link DebeziumOffset}.
  */
 @Internal
-public class DebeziumStateSerializer {
+public class DebeziumOffsetSerializer {
-	public byte[] serialize(DebeziumState debeziumState) throws IOException {
+	public byte[] serialize(DebeziumOffset debeziumOffset) throws IOException {
 		// we currently use JSON serialization for simplification, as the state is very small.
 		// we can improve this in the future if needed
 		ObjectMapper objectMapper = new ObjectMapper();
-		return objectMapper.writeValueAsBytes(debeziumState);
+		return objectMapper.writeValueAsBytes(debeziumOffset);
 	}
 
-	public DebeziumState deserialize(byte[] bytes) throws IOException {
+	public DebeziumOffset deserialize(byte[] bytes) throws IOException {
 		ObjectMapper objectMapper = new ObjectMapper();
-		return objectMapper.readValue(bytes, DebeziumState.class);
+		return objectMapper.readValue(bytes, DebeziumOffset.class);
 	}
 }

flink-connector-debezium/src/main/java/com/alibaba/ververica/cdc/debezium/internal/FlinkOffsetBackingStore.java

@@ -77,10 +77,10 @@ public class FlinkOffsetBackingStore implements OffsetBackingStore {
 		}
 
 		String stateJson = (String) conf.get(OFFSET_STATE_VALUE);
-		DebeziumStateSerializer serializer = new DebeziumStateSerializer();
+		DebeziumOffsetSerializer serializer = new DebeziumOffsetSerializer();
-		DebeziumState debeziumState;
+		DebeziumOffset debeziumOffset;
 		try {
-			debeziumState = serializer.deserialize(stateJson.getBytes(StandardCharsets.UTF_8));
+			debeziumOffset = serializer.deserialize(stateJson.getBytes(StandardCharsets.UTF_8));
 		} catch (IOException e) {
 			LOG.error("Can't deserialize debezium offset state from JSON: " + stateJson, e);
 			throw new RuntimeException(e);
@@ -100,7 +100,7 @@ public class FlinkOffsetBackingStore implements OffsetBackingStore {
 			keyConverter,
 			valueConverter);
 
-		offsetWriter.offset(debeziumState.sourcePartition, debeziumState.sourceOffset);
+		offsetWriter.offset(debeziumOffset.sourcePartition, debeziumOffset.sourceOffset);
 
 		// flush immediately
 		if (!offsetWriter.beginFlush()) {
@@ -122,8 +122,8 @@ public class FlinkOffsetBackingStore implements OffsetBackingStore {
 		try {
 			flushFuture.get(FLUSH_TIMEOUT_SECONDS, TimeUnit.SECONDS);
 			LOG.info("Flush offsets successfully, partition: {}, offsets: {}",
-				debeziumState.sourcePartition,
+				debeziumOffset.sourcePartition,
-				debeziumState.sourceOffset);
+				debeziumOffset.sourceOffset);
 		} catch (InterruptedException e) {
 			LOG.warn("Flush offsets interrupted, cancelling.", e);
 			offsetWriter.cancelFlush();