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feat (core): Expose Descriptor Protos as a new EntityKind
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73 changes: 73 additions & 0 deletions
73
core/impl/src/main/java/dev/enola/core/meta/SchemaAspect.java
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|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| /* | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| * Copyright 2023 The Enola <https://enola.dev> Authors | ||
| * | ||
| * 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 | ||
| * | ||
| * https://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 dev.enola.core.meta; | ||
|
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| import static com.google.protobuf.Any.pack; | ||
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| import com.google.common.collect.ImmutableList; | ||
| import com.google.protobuf.DescriptorProtos; | ||
| import com.google.protobuf.Descriptors; | ||
|
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| import dev.enola.core.EnolaException; | ||
| import dev.enola.core.EnolaServiceProvider; | ||
| import dev.enola.core.EntityAspect; | ||
| import dev.enola.core.connector.proto.ConnectorServiceListRequest; | ||
| import dev.enola.core.meta.proto.EntityKind; | ||
| import dev.enola.core.proto.Entity; | ||
| import dev.enola.core.proto.ID; | ||
|
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| import java.util.List; | ||
|
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| public class SchemaAspect implements EntityAspect { | ||
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| // Matching schema.textproto | ||
| static final ID.Builder idBuilderTemplate = ID.newBuilder().setNs("enola").setEntity("schema"); | ||
|
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| private EnolaServiceProvider esp; | ||
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| public void setESP(EnolaServiceProvider enolaServiceProvider) { | ||
| this.esp = enolaServiceProvider; | ||
| } | ||
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| @Override | ||
| public void augment(Entity.Builder entity, EntityKind entityKind) throws EnolaException { | ||
| var name = entity.getId().getPaths(0); | ||
| var descriptor = esp.getTypeRegistryWrapper().get().find(name).toProto(); | ||
| var any = pack(descriptor, "type.googleapis.com/"); | ||
| entity.putData("proto", any); | ||
| } | ||
|
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| @Override | ||
| public void list( | ||
| ConnectorServiceListRequest request, | ||
| EntityKind entityKind, | ||
| List<Entity.Builder> entities) | ||
| throws EnolaException { | ||
| // TODO if (!IDs.withoutPath(request.getId()).equals(idBuilderTemplate)) return | ||
| for (var name : esp.getTypeRegistryWrapper().names()) { | ||
| var id = idBuilderTemplate.clone().addPaths(name); | ||
| var newSchemaEntity = Entity.newBuilder().setId(id); | ||
| augment(newSchemaEntity, null); | ||
| entities.add(newSchemaEntity); | ||
| } | ||
| } | ||
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| public List<Descriptors.Descriptor> getDescriptors() throws EnolaException { | ||
| return ImmutableList.of(DescriptorProtos.DescriptorProto.getDescriptor()); | ||
| } | ||
| } |
81 changes: 81 additions & 0 deletions
81
core/impl/src/main/java/dev/enola/core/meta/TypeRegistryWrapper.java
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|---|---|---|
| @@ -0,0 +1,81 @@ | ||
| /* | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| * Copyright 2023 The Enola <https://enola.dev> Authors | ||
| * | ||
| * 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 | ||
| * | ||
| * https://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 dev.enola.core.meta; | ||
|
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| import com.google.common.collect.ImmutableSet; | ||
| import com.google.protobuf.Descriptors; | ||
| import com.google.protobuf.TypeRegistry; | ||
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| import java.util.List; | ||
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| public class TypeRegistryWrapper { | ||
| private final TypeRegistry originalTypeRegistry; | ||
| private final ImmutableSet<String> names; | ||
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| private TypeRegistryWrapper(TypeRegistry typeRegistry, ImmutableSet<String> names) { | ||
| this.originalTypeRegistry = typeRegistry; | ||
| this.names = names; | ||
| } | ||
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| public static Builder newBuilder() { | ||
| return new Builder(); | ||
| } | ||
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| public TypeRegistry get() { | ||
| return originalTypeRegistry; | ||
| } | ||
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| public ImmutableSet<String> names() { | ||
| return names; | ||
| } | ||
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| public static final class Builder { | ||
| private final TypeRegistry.Builder originalBuilder = TypeRegistry.newBuilder(); | ||
| private final ImmutableSet.Builder<String> names = ImmutableSet.builder(); | ||
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| private Builder() {} | ||
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| public Builder add(List<Descriptors.Descriptor> descriptors) { | ||
| originalBuilder.add(descriptors); | ||
| for (Descriptors.Descriptor type : descriptors) { | ||
| addFile(type.getFile()); | ||
| } | ||
| return this; | ||
| } | ||
|
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| private void addFile(Descriptors.FileDescriptor file) { | ||
| for (Descriptors.FileDescriptor dependency : file.getDependencies()) { | ||
| addFile(dependency); | ||
| } | ||
| for (Descriptors.Descriptor message : file.getMessageTypes()) { | ||
| addMessage(message); | ||
| } | ||
| } | ||
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| private void addMessage(Descriptors.Descriptor message) { | ||
| for (Descriptors.Descriptor nestedType : message.getNestedTypes()) { | ||
| addMessage(nestedType); | ||
| } | ||
| names.add(message.getFullName()); | ||
| } | ||
|
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| public TypeRegistryWrapper build() { | ||
| return new TypeRegistryWrapper(originalBuilder.build(), names.build()); | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,36 @@ | ||
| # SPDX-License-Identifier: Apache-2.0 | ||
| # | ||
| # Copyright 2023 The Enola <https://enola.dev> Authors | ||
| # | ||
| # 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 | ||
| # | ||
| # https://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. | ||
|
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| # https://protobuf.dev/reference/protobuf/textformat-spec/ | ||
| # proto-file: dev/enola/core/meta/enola_meta.proto | ||
| # proto-message: EntityKinds | ||
|
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| kinds { | ||
| id: { ns: "enola" entity: "schema" paths: "fqn" } | ||
| label: "Schema (Proto) used in Enola Entity Data" | ||
| emoji: "💠" | ||
| doc_url: "https://docs.enola.dev/use/connector/#grpc" | ||
| connectors: { java_class: "dev.enola.core.meta.SchemaAspect" } | ||
| data: { | ||
| key: "proto" | ||
| value: { | ||
| label: "Protocol Buffer Descriptor (Proto)" | ||
| description: "This is the Proto ('Schema') for the 'Any' fields in the 'data' of a Connector." | ||
| type_url: "type.googleapis.com/google.protobuf.DescriptorProto" | ||
| } | ||
| } | ||
| # TODO Add a "source" kind of data entry, which links to the Connector? | ||
| } |
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