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37 changes: 37 additions & 0 deletions
37
examples/java/com/google/api/graphql/examples/library/graphqlserver/LibraryProtoWriter.java
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|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| // Copyright 2017 Google LLC | ||
| // | ||
| // 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 | ||
| // | ||
| // 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 com.google.api.graphql.examples.library.graphqlserver; | ||
|
|
||
| import com.google.api.graphql.grpc.SchemaToProto; | ||
| import com.google.common.base.Charsets; | ||
| import com.google.common.io.Files; | ||
| import java.io.BufferedWriter; | ||
| import java.io.File; | ||
| import java.io.IOException; | ||
|
|
||
| final class LibraryProtoWriter { | ||
| public static void main(String[] args) throws IOException { | ||
| if (args.length == 0) { | ||
| throw new RuntimeException("output path required"); | ||
| } | ||
| String proto = SchemaToProto.toProto(LibrarySchema.SCHEMA); | ||
| BufferedWriter writer = Files.newWriter(new File(args[0]), Charsets.UTF_8); | ||
| try { | ||
| writer.write(proto); | ||
| } finally { | ||
| writer.close(); | ||
| } | ||
| } | ||
| } |
34 changes: 34 additions & 0 deletions
34
examples/java/com/google/api/graphql/examples/library/graphqlserver/LibrarySchema.java
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| // Copyright 2017 Google LLC | ||
| // | ||
| // 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 | ||
| // | ||
| // 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 com.google.api.graphql.examples.library.graphqlserver; | ||
|
|
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| import com.google.api.graphql.rejoiner.Schema; | ||
| import com.google.api.graphql.rejoiner.SchemaProviderModule; | ||
| import com.google.inject.Guice; | ||
| import com.google.inject.Key; | ||
| import graphql.schema.GraphQLSchema; | ||
|
|
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| final class LibrarySchema { | ||
| static final GraphQLSchema SCHEMA = | ||
| Guice.createInjector( | ||
| new SchemaProviderModule(), | ||
| new BookClientModule(), | ||
| new BookSchemaModule(), | ||
| new ShelfClientModule(), | ||
| new ShelfSchemaModule(), | ||
| new LibrarySchemaModule(), | ||
| new SeedLibrarySchemaModule()) | ||
| .getInstance(Key.get(GraphQLSchema.class, Schema.class)); | ||
| } |
56 changes: 56 additions & 0 deletions
56
examples/java/com/google/api/graphql/examples/library/graphqlserver/LibrarySchemaModule.java
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| // Copyright 2017 Google LLC | ||
| // | ||
| // 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 | ||
| // | ||
| // 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 com.google.api.graphql.examples.library.graphqlserver; | ||
|
|
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| import com.google.api.graphql.rejoiner.Arg; | ||
| import com.google.api.graphql.rejoiner.Mutation; | ||
| import com.google.api.graphql.rejoiner.SchemaModification; | ||
| import com.google.api.graphql.rejoiner.SchemaModule; | ||
| import com.google.common.collect.ImmutableList; | ||
| import com.google.example.library.book.v1.Book; | ||
| import com.google.example.library.book.v1.BookServiceGrpc; | ||
| import com.google.example.library.book.v1.CreateBookRequest; | ||
| import com.google.example.library.book.v1.GetBookRequest; | ||
| import com.google.example.library.shelf.v1.GetShelfRequest; | ||
| import com.google.example.library.shelf.v1.Shelf; | ||
| import com.google.example.library.shelf.v1.ShelfServiceGrpc; | ||
|
|
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| /** A GraphQL {@link SchemaModule} backed by a gRPC service. */ | ||
| final class LibrarySchemaModule extends SchemaModule { | ||
|
|
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| @Mutation("createBookAndAddToShelf") | ||
| Book createBookAndAddToShelf( | ||
| CreateBookRequest request, | ||
| @Arg("shelf") GetShelfRequest shelfRequest, | ||
| ShelfServiceGrpc.ShelfServiceBlockingStub shelfClient, | ||
| BookServiceGrpc.BookServiceBlockingStub bookClient) { | ||
| Book book = bookClient.createBook(request); | ||
| Shelf shelf = shelfClient.getShelf(shelfRequest); | ||
| // TODO: Add an update shelf RPC | ||
| // shelfClient.updateShelf(shelf.toBuilder().addBookIds(book.getId()).build()); | ||
| return book; | ||
| } | ||
|
|
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| @SchemaModification(addField = "books", onType = Shelf.class) | ||
| ImmutableList<Book> shelfToBooks( | ||
| Shelf shelf, BookServiceGrpc.BookServiceBlockingStub bookClient) { | ||
| // TODO: use a data loader or batch endpoint | ||
| return shelf | ||
| .getBookIdsList() | ||
| .stream() | ||
| .map(id -> bookClient.getBook(GetBookRequest.newBuilder().setId(id).build())) | ||
| .collect(ImmutableList.toImmutableList()); | ||
| } | ||
| } |
129 changes: 129 additions & 0 deletions
129
...s/java/com/google/api/graphql/examples/library/graphqlserver/SeedLibrarySchemaModule.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,129 @@ | ||
| // Copyright 2017 Google LLC | ||
| // | ||
| // 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 | ||
| // | ||
| // 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 com.google.api.graphql.examples.library.graphqlserver; | ||
|
|
||
| import com.google.api.graphql.rejoiner.Mutation; | ||
| import com.google.api.graphql.rejoiner.SchemaModule; | ||
| import com.google.common.collect.ImmutableList; | ||
| import com.google.example.library.book.v1.Book; | ||
| import com.google.example.library.book.v1.BookServiceGrpc; | ||
| import com.google.example.library.book.v1.CreateBookRequest; | ||
| import com.google.example.library.shelf.v1.CreateShelfRequest; | ||
| import com.google.example.library.shelf.v1.Shelf; | ||
| import com.google.example.library.shelf.v1.ShelfServiceGrpc; | ||
| import com.google.protobuf.Empty; | ||
|
|
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| /** A GraphQL {@link SchemaModule} backed by a gRPC service. */ | ||
| final class SeedLibrarySchemaModule extends SchemaModule { | ||
|
|
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| @Mutation("seed") | ||
| Empty seed( | ||
| ShelfServiceGrpc.ShelfServiceBlockingStub shelfClient, | ||
| BookServiceGrpc.BookServiceBlockingStub bookClient) { | ||
|
|
||
| String greatExpectations = | ||
| bookClient | ||
| .createBook( | ||
| CreateBookRequest.newBuilder() | ||
| .setBook( | ||
| Book.newBuilder() | ||
| .setAuthor("Charles Dickens") | ||
| .setTitle("Great Expectations") | ||
| .setRead(false)) | ||
| .build()) | ||
| .getId(); | ||
| String thinkingFastAndSlow = | ||
| bookClient | ||
| .createBook( | ||
| CreateBookRequest.newBuilder() | ||
| .setBook( | ||
| Book.newBuilder() | ||
| .setAuthor("Daniel Kahnemann") | ||
| .setTitle("Thinking, Fast and Slow") | ||
| .setRead(true)) | ||
| .build()) | ||
| .getId(); | ||
| String theCatcherInTheRye = | ||
| bookClient | ||
| .createBook( | ||
| CreateBookRequest.newBuilder() | ||
| .setBook( | ||
| Book.newBuilder() | ||
| .setAuthor("J. D. Salinger") | ||
| .setTitle("The Catcher in the Rye") | ||
| .setRead(false)) | ||
| .build()) | ||
| .getId(); | ||
| String huckleberryFinn = | ||
| bookClient | ||
| .createBook( | ||
| CreateBookRequest.newBuilder() | ||
| .setBook( | ||
| Book.newBuilder() | ||
| .setAuthor("Mark Twain") | ||
| .setTitle("The Adventures of Huckleberry Finn") | ||
| .setRead(false)) | ||
| .build()) | ||
| .getId(); | ||
| String masterAndMargarita = | ||
| bookClient | ||
| .createBook( | ||
| CreateBookRequest.newBuilder() | ||
| .setBook( | ||
| Book.newBuilder() | ||
| .setAuthor("Mikhail Bulgakov") | ||
| .setTitle("The Master and Margarita") | ||
| .setRead(false)) | ||
| .build()) | ||
| .getId(); | ||
| String warAndPeace = | ||
| bookClient | ||
| .createBook( | ||
| CreateBookRequest.newBuilder() | ||
| .setBook( | ||
| Book.newBuilder() | ||
| .setAuthor("Leo Tolstoy") | ||
| .setTitle("War and Peace") | ||
| .setRead(true)) | ||
| .build()) | ||
| .getId(); | ||
|
|
||
| shelfClient.createShelf( | ||
| CreateShelfRequest.newBuilder() | ||
| .setShelf( | ||
| Shelf.newBuilder() | ||
| .setTheme("Satire") | ||
| .addAllBookIds(ImmutableList.of(greatExpectations, thinkingFastAndSlow)) | ||
| .build()) | ||
| .build()); | ||
| shelfClient.createShelf( | ||
| CreateShelfRequest.newBuilder() | ||
| .setShelf( | ||
| Shelf.newBuilder() | ||
| .setTheme("Classics") | ||
| .addAllBookIds(ImmutableList.of(theCatcherInTheRye, huckleberryFinn)) | ||
| .build()) | ||
| .build()); | ||
| shelfClient.createShelf( | ||
| CreateShelfRequest.newBuilder() | ||
| .setShelf( | ||
| Shelf.newBuilder() | ||
| .setTheme("Russian") | ||
| .addAllBookIds(ImmutableList.of(masterAndMargarita, warAndPeace)) | ||
| .build()) | ||
| .build()); | ||
| return Empty.getDefaultInstance(); | ||
| } | ||
| } |
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