org.apache.flink.table.catalog.pulsar.util.TableSchemaHelper Maven / Gradle / Ivy
/*
* Licensed 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.catalog.pulsar.util;
import org.apache.flink.table.runtime.util.JsonUtils;
import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.core.JsonProcessingException;
import org.apache.flink.shaded.jackson2.com.fasterxml.jackson.core.type.TypeReference;
import org.apache.pulsar.client.impl.schema.SchemaInfoImpl;
import org.apache.pulsar.common.schema.SchemaInfo;
import org.apache.pulsar.common.schema.SchemaType;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
/**
* Util to convert between flink table map representation and pulsar SchemaInfo.
*/
public final class TableSchemaHelper {
private TableSchemaHelper() {}
public static SchemaInfo generateSchemaInfo(Map properties) throws JsonProcessingException {
return SchemaInfoImpl.builder()
.name("flink_table_schema")
.type(SchemaType.BYTES)
.schema(JsonUtils.MAPPER.writeValueAsBytes(properties))
.build();
}
public static Map generateTableProperties(SchemaInfo schemaInfo) throws IOException {
return JsonUtils.MAPPER.readValue(schemaInfo.getSchema(), new TypeReference>() {});
}
}