| /** |
| * 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.pulsar.broker.service.schema; |
| |
| import com.fasterxml.jackson.core.JsonProcessingException; |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.fasterxml.jackson.module.jsonSchema.JsonSchema; |
| import com.fasterxml.jackson.module.jsonSchema.JsonSchemaGenerator; |
| |
| import java.io.IOException; |
| import java.util.Collections; |
| import java.util.Map; |
| |
| import lombok.Data; |
| |
| import org.apache.pulsar.client.api.Schema; |
| import org.apache.pulsar.client.api.SchemaSerializationException; |
| import org.apache.pulsar.client.api.schema.SchemaDefinition; |
| import org.apache.pulsar.client.impl.schema.JSONSchema; |
| import org.apache.pulsar.client.impl.schema.SchemaInfoImpl; |
| import org.apache.pulsar.common.policies.data.SchemaCompatibilityStrategy; |
| import org.apache.pulsar.common.protocol.schema.SchemaData; |
| import org.apache.pulsar.common.schema.SchemaInfo; |
| import org.apache.pulsar.common.schema.SchemaType; |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| @Test(groups = "broker") |
| public class JsonSchemaCompatibilityCheckTest extends BaseAvroSchemaCompatibilityTest{ |
| |
| @Override |
| public SchemaCompatibilityCheck getSchemaCheck() { |
| return new JsonSchemaCompatibilityCheck(); |
| } |
| |
| @Test |
| public void testJsonSchemaBackwardsCompatibility() throws JsonProcessingException { |
| |
| SchemaData from = SchemaData.builder().data(OldJSONSchema.of(Foo.class).getSchemaInfo().getSchema()).build(); |
| SchemaData to = SchemaData.builder().data(JSONSchema.of(SchemaDefinition.builder().withPojo(Foo.class).build()).getSchemaInfo().getSchema()).build(); |
| JsonSchemaCompatibilityCheck jsonSchemaCompatibilityCheck = new JsonSchemaCompatibilityCheck(); |
| Assert.assertTrue(jsonSchemaCompatibilityCheck.isCompatible(from, to, SchemaCompatibilityStrategy.FULL)); |
| |
| from = SchemaData.builder().data(JSONSchema.of(SchemaDefinition.<Foo>builder().withPojo(Foo.class).build()).getSchemaInfo().getSchema()).build(); |
| to = SchemaData.builder().data(OldJSONSchema.of(Foo.class).getSchemaInfo().getSchema()).build(); |
| Assert.assertTrue(jsonSchemaCompatibilityCheck.isCompatible(from, to, SchemaCompatibilityStrategy.FULL)); |
| } |
| |
| @Data |
| private static class Foo { |
| private String field1; |
| private String field2; |
| private int field3; |
| private Bar field4; |
| } |
| |
| @Data |
| private static class Bar { |
| private boolean field1; |
| } |
| |
| public static class OldJSONSchema<T> implements Schema<T> { |
| |
| private final SchemaInfo info; |
| private final ObjectMapper objectMapper; |
| private final Class<T> pojo; |
| |
| private OldJSONSchema(SchemaInfo info, Class<T> pojo, ObjectMapper objectMapper) { |
| this.info = info; |
| this.pojo = pojo; |
| this.objectMapper = objectMapper; |
| } |
| |
| @Override |
| public byte[] encode(T message) throws SchemaSerializationException { |
| try { |
| return objectMapper.writeValueAsBytes(message); |
| } catch (JsonProcessingException e) { |
| throw new SchemaSerializationException(e); |
| } |
| } |
| |
| @Override |
| public T decode(byte[] bytes) { |
| try { |
| return objectMapper.readValue(new String(bytes), pojo); |
| } catch (IOException e) { |
| throw new RuntimeException(new SchemaSerializationException(e)); |
| } |
| } |
| |
| @Override |
| public SchemaInfo getSchemaInfo() { |
| return info; |
| } |
| |
| public static <T> OldJSONSchema<T> of(Class<T> pojo) throws JsonProcessingException { |
| return of(pojo, Collections.emptyMap()); |
| } |
| |
| public static <T> OldJSONSchema<T> of(Class<T> pojo, Map<String, String> properties) throws JsonProcessingException { |
| ObjectMapper mapper = new ObjectMapper(); |
| JsonSchemaGenerator schemaGen = new JsonSchemaGenerator(mapper); |
| JsonSchema schema = schemaGen.generateSchema(pojo); |
| |
| SchemaInfo info = SchemaInfoImpl.builder() |
| .name("") |
| .properties(properties) |
| .type(SchemaType.JSON) |
| .schema(mapper.writeValueAsBytes(schema)) |
| .build(); |
| return new OldJSONSchema<>(info, pojo, mapper); |
| } |
| |
| @Override |
| public Schema<T> clone() { |
| return this; |
| } |
| } |
| } |