feat(lib-dynamodb): add DynamoDB DocumentClient (#2097)

Co-authored-by: AllanZhengYP <[email protected]>

Author: trivikr

Diff for: codegen/smithy-aws-typescript-codegen/src/main/java/software/amazon/smithy/aws/typescript/codegen/AddDocumentClientPlugin.java

@@ -0,0 +1,104 @@
+/*
+ * Copyright 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License").
+ * You may not use this file except in compliance with the License.
+ * A copy of the License is located at
+ *
+ *  http://aws.amazon.com/apache2.0
+ *
+ * or in the "license" file accompanying this file. This file 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 software.amazon.smithy.aws.typescript.codegen;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
+import java.util.TreeSet;
+import java.util.function.BiConsumer;
+import java.util.function.Consumer;
+import software.amazon.smithy.aws.traits.ServiceTrait;
+import software.amazon.smithy.codegen.core.SymbolProvider;
+import software.amazon.smithy.model.Model;
+import software.amazon.smithy.model.knowledge.TopDownIndex;
+import software.amazon.smithy.model.shapes.OperationShape;
+import software.amazon.smithy.model.shapes.ServiceShape;
+import software.amazon.smithy.model.shapes.Shape;
+import software.amazon.smithy.typescript.codegen.TypeScriptSettings;
+import software.amazon.smithy.typescript.codegen.TypeScriptWriter;
+import software.amazon.smithy.typescript.codegen.integration.TypeScriptIntegration;
+import software.amazon.smithy.utils.IoUtils;
+
+/**
+ * Generates Client and Commands for DynamoDB Document Client.
+ */
+public class AddDocumentClientPlugin implements TypeScriptIntegration {
+
+    @Override
+    public void writeAdditionalFiles(
+        TypeScriptSettings settings,
+        Model model,
+        SymbolProvider symbolProvider,
+        BiConsumer<String, Consumer<TypeScriptWriter>> writerFactory
+    ) {
+        ServiceShape service = settings.getService(model);
+        if (testServiceId(service, "DynamoDB")) {
+            String docClientPrefix = "doc-client-";
+            Set<OperationShape> containedOperations =
+                new TreeSet<>(TopDownIndex.of(model).getContainedOperations(service));
+            List<OperationShape> overridenOperationsList = new ArrayList<>();
+
+            for (OperationShape operation : containedOperations) {
+                String operationName = symbolProvider.toSymbol(operation).getName();
+                String commandFileName = String.format("%s%s/%s.ts", docClientPrefix,
+                    DocumentClientUtils.CLIENT_COMMANDS_FOLDER, DocumentClientUtils.getModifiedName(operationName));
+
+                if (DocumentClientUtils.containsAttributeValue(model, symbolProvider, operation)) {
+                    overridenOperationsList.add(operation);
+                    writerFactory.accept(commandFileName,
+                        writer -> new DocumentClientCommandGenerator(
+                            settings, model, operation, symbolProvider, writer).run()
+                    );
+                }
+            }
+
+            writerFactory.accept(String.format("%s%s.ts", docClientPrefix, DocumentClientUtils.CLIENT_NAME),
+                writer -> new DocumentClientGenerator(settings, model, symbolProvider, writer).run());
+
+            writerFactory.accept(String.format("%s%s.ts", docClientPrefix, DocumentClientUtils.CLIENT_FULL_NAME),
+                writer -> new DocumentFullClientGenerator(settings, model, symbolProvider, writer).run());
+
+            writerFactory.accept(String.format("%sindex.ts", docClientPrefix), writer -> {
+                for (OperationShape operationOverriden: overridenOperationsList) {
+                    String operationFileName = DocumentClientUtils.getModifiedName(
+                        symbolProvider.toSymbol(operationOverriden).getName()
+                    );
+                    writer.write("export * from './$L/$L';",
+                        DocumentClientUtils.CLIENT_COMMANDS_FOLDER, operationFileName);
+                }
+                writer.write("export * from './$L';", DocumentClientUtils.CLIENT_NAME);
+                writer.write("export * from './$L';", DocumentClientUtils.CLIENT_FULL_NAME);
+            });
+
+            String utilsFileLocation = String.format("%s%s", docClientPrefix, DocumentClientUtils.CLIENT_UTILS_FILE);
+            writerFactory.accept(String.format("%s%s/%s.ts", docClientPrefix,
+                DocumentClientUtils.CLIENT_COMMANDS_FOLDER, DocumentClientUtils.CLIENT_UTILS_FILE), writer -> {
+                writer.write(IoUtils.readUtf8Resource(AddDocumentClientPlugin.class,
+                    String.format("%s.ts", utilsFileLocation)));
+            });
+            writerFactory.accept(String.format("%s%s/%s.spec.ts", docClientPrefix,
+                DocumentClientUtils.CLIENT_COMMANDS_FOLDER, DocumentClientUtils.CLIENT_UTILS_FILE), writer -> {
+                writer.write(IoUtils.readUtf8Resource(AddDocumentClientPlugin.class,
+                    String.format("%s.spec.ts", utilsFileLocation)));
+            });
+        }
+    }
+
+    private boolean testServiceId(Shape serviceShape, String expectedId) {
+        return serviceShape.getTrait(ServiceTrait.class).map(ServiceTrait::getSdkId).orElse("").equals(expectedId);
+    }
+}