org.apache.flink.table.planner.plan.nodes.exec.serde.ChangelogModeJsonDeserializer Maven / Gradle / Ivy
/*
* 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.table.planner.plan.nodes.exec.serde;
import org.apache.flink.table.connector.ChangelogMode;
import org.apache.flink.types.RowKind;
import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.core.JsonParser;
import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.core.JsonProcessingException;
import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.DeserializationContext;
import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.JsonNode;
import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.deser.std.StdDeserializer;
import java.io.IOException;
/**
* JSON deserializer for {@link ChangelogMode}. refer to {@link ChangelogModeJsonSerializer} for
* serializer.
*/
public class ChangelogModeJsonDeserializer extends StdDeserializer {
private static final long serialVersionUID = 1L;
public ChangelogModeJsonDeserializer() {
super(ChangelogMode.class);
}
@Override
public ChangelogMode deserialize(
JsonParser jsonParser, DeserializationContext deserializationContext)
throws IOException, JsonProcessingException {
ChangelogMode.Builder builder = ChangelogMode.newBuilder();
JsonNode rowKindsNode = jsonParser.readValueAsTree();
for (JsonNode rowKindNode : rowKindsNode) {
RowKind rowKind = RowKind.valueOf(rowKindNode.asText().toUpperCase());
builder.addContainedKind(rowKind);
}
return builder.build();
}
}