| /** |
| * 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.client.impl.schema.util; |
| |
| import org.apache.avro.Schema; |
| import org.apache.avro.reflect.ReflectData; |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.pulsar.client.api.schema.SchemaDefinition; |
| import org.apache.pulsar.client.impl.schema.SchemaDefinitionBuilderImpl; |
| import org.apache.pulsar.client.impl.schema.SchemaInfoImpl; |
| import org.apache.pulsar.common.schema.SchemaInfo; |
| import org.apache.pulsar.common.schema.SchemaType; |
| |
| import java.lang.reflect.Field; |
| |
| import static java.nio.charset.StandardCharsets.UTF_8; |
| |
| public class SchemaUtil { |
| |
| public static boolean getJsr310ConversionEnabledFromSchemaInfo(SchemaInfo schemaInfo) { |
| if (schemaInfo != null) { |
| return Boolean.parseBoolean(schemaInfo.getProperties() |
| .getOrDefault(SchemaDefinitionBuilderImpl.JSR310_CONVERSION_ENABLED, "false")); |
| } |
| return false; |
| } |
| |
| public static Schema parseAvroSchema(String schemaJson) { |
| final Schema.Parser parser = new Schema.Parser(); |
| parser.setValidateDefaults(false); |
| return parser.parse(schemaJson); |
| } |
| |
| public static <T> SchemaInfo parseSchemaInfo(SchemaDefinition<T> schemaDefinition, SchemaType schemaType) { |
| return SchemaInfoImpl.builder() |
| .schema(createAvroSchema(schemaDefinition).toString().getBytes(UTF_8)) |
| .properties(schemaDefinition.getProperties()) |
| .name("") |
| .type(schemaType).build(); |
| } |
| |
| public static Schema createAvroSchema(SchemaDefinition schemaDefinition) { |
| Class pojo = schemaDefinition.getPojo(); |
| |
| if (StringUtils.isNotBlank(schemaDefinition.getJsonDef())) { |
| return parseAvroSchema(schemaDefinition.getJsonDef()); |
| } else if (pojo != null) { |
| ThreadLocal<Boolean> validateDefaults = null; |
| |
| try { |
| Field validateDefaultsField = Schema.class.getDeclaredField("VALIDATE_DEFAULTS"); |
| validateDefaultsField.setAccessible(true); |
| validateDefaults = (ThreadLocal<Boolean>) validateDefaultsField.get(null); |
| } catch (NoSuchFieldException | IllegalAccessException e) { |
| throw new RuntimeException("Cannot disable validation of default values", e); |
| } |
| |
| final boolean savedValidateDefaults = validateDefaults.get(); |
| |
| try { |
| // Disable validation of default values for compatibility |
| validateDefaults.set(false); |
| return extractAvroSchema(schemaDefinition, pojo); |
| } finally { |
| validateDefaults.set(savedValidateDefaults); |
| } |
| } else { |
| throw new RuntimeException("Schema definition must specify pojo class or schema json definition"); |
| } |
| } |
| |
| public static Schema extractAvroSchema(SchemaDefinition schemaDefinition, Class pojo) { |
| try { |
| return parseAvroSchema(pojo.getDeclaredField("SCHEMA$").get(null).toString()); |
| } catch (NoSuchFieldException | IllegalAccessException | IllegalArgumentException ignored) { |
| return schemaDefinition.getAlwaysAllowNull() ? ReflectData.AllowNull.get().getSchema(pojo) |
| : ReflectData.get().getSchema(pojo); |
| } |
| } |
| } |