org.apache.flink.table.planner.plan.nodes.exec.serde.ObjectIdentifierJsonDeserializer 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.catalog.ObjectIdentifier;

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;

import static org.apache.flink.table.planner.plan.nodes.exec.serde.ObjectIdentifierJsonSerializer.FIELD_NAME_CATALOG_NAME;
import static org.apache.flink.table.planner.plan.nodes.exec.serde.ObjectIdentifierJsonSerializer.FIELD_NAME_DATABASE_NAME;
import static org.apache.flink.table.planner.plan.nodes.exec.serde.ObjectIdentifierJsonSerializer.FIELD_NAME_TABLE_NAME;

/** JSON deserializer for {@link ObjectIdentifier}. */
public class ObjectIdentifierJsonDeserializer extends StdDeserializer {
    private static final long serialVersionUID = 1L;

    public ObjectIdentifierJsonDeserializer() {
        super(ObjectIdentifier.class);
    }

    @Override
    public ObjectIdentifier deserialize(JsonParser jsonParser, DeserializationContext ctx)
            throws IOException, JsonProcessingException {
        final JsonNode identifierNode = jsonParser.readValueAsTree();
        return deserialize(identifierNode);
    }

    public static ObjectIdentifier deserialize(JsonNode identifierNode) {
        return ObjectIdentifier.of(
                identifierNode.get(FIELD_NAME_CATALOG_NAME).asText(),
                identifierNode.get(FIELD_NAME_DATABASE_NAME).asText(),
                identifierNode.get(FIELD_NAME_TABLE_NAME).asText());
    }
}