| /* |
| * 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 static com.google.protobuf.Descriptors.Descriptor; |
| import org.apache.pulsar.broker.service.schema.exceptions.IncompatibleSchemaException; |
| import org.apache.pulsar.client.impl.schema.ProtobufNativeSchemaUtils; |
| import org.apache.pulsar.common.policies.data.SchemaCompatibilityStrategy; |
| import org.apache.pulsar.common.protocol.schema.SchemaData; |
| import org.apache.pulsar.common.schema.SchemaType; |
| |
| /** |
| * The {@link SchemaCompatibilityCheck} implementation for {@link SchemaType#PROTOBUF_NATIVE}. |
| */ |
| public class ProtobufNativeSchemaCompatibilityCheck implements SchemaCompatibilityCheck { |
| |
| @Override |
| public SchemaType getSchemaType() { |
| return SchemaType.PROTOBUF_NATIVE; |
| } |
| |
| @Override |
| public void checkCompatible(SchemaData from, SchemaData to, SchemaCompatibilityStrategy strategy) |
| throws IncompatibleSchemaException { |
| Descriptor fromDescriptor = ProtobufNativeSchemaUtils.deserialize(from.getData()); |
| Descriptor toDescriptor = ProtobufNativeSchemaUtils.deserialize(to.getData()); |
| switch (strategy) { |
| case BACKWARD_TRANSITIVE: |
| case BACKWARD: |
| case FORWARD_TRANSITIVE: |
| case FORWARD: |
| case FULL_TRANSITIVE: |
| case FULL: |
| checkRootMessageChange(fromDescriptor, toDescriptor, strategy); |
| return; |
| case ALWAYS_COMPATIBLE: |
| return; |
| default: |
| throw new IncompatibleSchemaException("Unknown SchemaCompatibilityStrategy."); |
| } |
| } |
| |
| @Override |
| public void checkCompatible(Iterable<SchemaData> from, SchemaData to, SchemaCompatibilityStrategy strategy) |
| throws IncompatibleSchemaException { |
| for (SchemaData schemaData : from) { |
| checkCompatible(schemaData, to, strategy); |
| } |
| } |
| |
| private void checkRootMessageChange(Descriptor fromDescriptor, Descriptor toDescriptor, |
| SchemaCompatibilityStrategy strategy) throws IncompatibleSchemaException { |
| if (!fromDescriptor.getFullName().equals(toDescriptor.getFullName())) { |
| throw new IncompatibleSchemaException("Protobuf root message isn't allow change!"); |
| } |
| } |
| |
| } |