Add Region class mapping (#5118)

Author: zoewangg

migration-tool/src/main/resources/META-INF/rewrite/change-region-types.yml

@@ -0,0 +1,30 @@
+#
+# Copyright 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.
+#
+---
+type: specs.openrewrite.org/v1beta/recipe
+name: software.amazon.awssdk.ChangeRegionTypes
+displayName: Change region related classes
+recipeList:
+  - org.openrewrite.java.ChangeMethodName:
+      methodPattern: com.amazonaws.regions.Regions fromName(String)
+      newMethodName: of
+  - org.openrewrite.java.ChangeMethodName:
+      methodPattern: com.amazonaws.regions.Regions getName()
+      newMethodName: id
+  - org.openrewrite.java.ChangeType:
+      oldFullyQualifiedTypeName: com.amazonaws.regions.Regions
+      newFullyQualifiedTypeName: software.amazon.awssdk.regions.Region
+
+## TODO: handle RegionUtils, Region

migration-tool/src/main/resources/META-INF/rewrite/change-sdk-core-types.yml

@@ -0,0 +1,20 @@
+#
+# Copyright 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.
+#
+---
+type: specs.openrewrite.org/v1beta/recipe
+name: software.amazon.awssdk.ChangeSdkCoreTypes
+displayName: Change Maven dependency groupId, artifactId and/or the version example
+recipeList:
+  - software.amazon.awssdk.ChangeRegionTypes

migration-tool/src/main/resources/META-INF/rewrite/java-sdk-v1-to-v2.yml

@@ -22,4 +22,5 @@ tags:
   - sdk
 recipeList:
   - software.amazon.awssdk.UpgradeSdkDependencies
-  - software.amazon.awssdk.migration.recipe.ChangeSdkType
+  - software.amazon.awssdk.migration.recipe.ChangeSdkType
+  - software.amazon.awssdk.ChangeSdkCoreTypes

migration-tool/src/test/java/software/amazon/awssdk/migration/recipe/ChangeRegionTypesTest.java

@@ -0,0 +1,65 @@
+/*
+ * Copyright 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.awssdk.migration.recipe;
+
+import static org.openrewrite.java.Assertions.java;
+
+import java.io.IOException;
+import java.io.InputStream;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.condition.EnabledOnJre;
+import org.junit.jupiter.api.condition.JRE;
+import org.openrewrite.java.Java8Parser;
+import org.openrewrite.test.RecipeSpec;
+import org.openrewrite.test.RewriteTest;
+
+
+public class ChangeRegionTypesTest implements RewriteTest {
+
+    @Override
+    public void defaults(RecipeSpec spec) {
+        try (InputStream stream = getClass().getResourceAsStream("/META-INF/rewrite/change-region-types.yml")) {
+            spec.recipe(stream, "software.amazon.awssdk.ChangeRegionTypes");
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    @Test
+    @EnabledOnJre({JRE.JAVA_8})
+    void shouldChangeRegions() {
+        rewriteRun(
+            spec -> spec.parser(Java8Parser.builder().classpath("aws-java-sdk-core")),
+            java(
+                "import com.amazonaws.regions.Regions;\n" +
+                "class Test {\n" +
+                "    static void method() {\n" +
+                "        Regions region = Regions.fromName(\"us-east-1\");\n" +
+                "        Regions region2 = Regions.US_EAST_1;\n" +
+                "    }\n" +
+                "}\n",
+                "import software.amazon.awssdk.regions.Region;\n" +
+                "\n" +
+                "class Test {\n" +
+                "    static void method() {\n" +
+                "        Region region = Region.of(\"us-east-1\");\n" +
+                "        Region region2 = Region.US_EAST_1;\n" +
+                "    }\n" +
+                "}\n"
+            )
+        );
+    }
+}