Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/5679#discussion_r173741952
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/rest/messages/checkpoints/CheckpointConfigInfo.java
---
@@ -143,10 +152,66 @@ public int hashCode() {
}
/**
- * Processing mode.
+ * JSON serializer for {@link ProcessingMode}.
*/
+ @JsonSerialize(using = ProcessingModeSerializer.class)
+ @JsonDeserialize(using = ProcessingModeDeserializer.class)
public enum ProcessingMode {
- AT_LEAST_ONCE,
- EXACTLY_ONCE
+ AT_LEAST_ONCE("at_least_once"),
+ EXACTLY_ONCE("exactly_once");
+
+ private String value;
+
+ ProcessingMode(String value) {
+ this.value = value;
+ }
+
+ public String getValue() {
+ return value;
+ }
+
+ public static ProcessingMode fromString(String value) {
+ for (ProcessingMode mode : ProcessingMode.values()) {
+ if (mode.value.equalsIgnoreCase(value)) {
+ return mode;
+ }
+ }
+
+ throw new IllegalArgumentException("No constant with
value " + value + " found");
+ }
+
+ }
+
+ /**
+ * JSON deserializer for {@link ProcessingMode}.
+ */
+ public static class ProcessingModeSerializer extends
StdSerializer<ProcessingMode> {
+
+ public ProcessingModeSerializer() {
+ super(ProcessingMode.class);
+ }
+
+ @Override
+ public void serialize(ProcessingMode mode, JsonGenerator
generator, SerializerProvider serializerProvider)
+ throws IOException {
+ generator.writeString(mode.getValue());
--- End diff --
replace with `generator.writeString(mode.name().toLowerCase())`
---
