example/src/main/java/org/apache/rocketmq/schema/registry/example/GetSchemaDemo.java

/*
 * 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.rocketmq.schema.registry.example;

import java.io.IOException;
import java.util.List;

import org.apache.rocketmq.schema.registry.client.SchemaRegistryClient;
import org.apache.rocketmq.schema.registry.client.SchemaRegistryClientFactory;
import org.apache.rocketmq.schema.registry.client.exceptions.RestClientException;
import org.apache.rocketmq.schema.registry.common.dto.GetSchemaResponse;
import org.apache.rocketmq.schema.registry.common.dto.SchemaRecordDto;

public class GetSchemaDemo {

    public static void main(String[] args) {

        String baseUrl = "http://localhost:8080";
        SchemaRegistryClient schemaRegistryClient = SchemaRegistryClientFactory.newClient(baseUrl, null);

        String topic = "TopicTest";
        try {
            GetSchemaResponse response
                = schemaRegistryClient.getSchemaBySubject(topic);
            System.out.println("get schema by subject success, response: " + response);

            response = schemaRegistryClient.getSchemaBySubjectAndVersion("default", "default", topic, 1);
            System.out.println("get schema by subject and version success, response: " + response);

            List<SchemaRecordDto> schemaList = schemaRegistryClient.getSchemaListBySubject("default", "default", topic);
            System.out.println("get all schema records success, response: " + schemaList);
        } catch (RestClientException | IOException e) {
            e.printStackTrace();
        }
    }
}