Adds support for the Okta SDK to be used with GraalVM's Native Image

api/src/main/resources/META-INF/native-image/com.okta.sdk/okta-sdk-api/native-image.properties

@@ -0,0 +1,17 @@
+#
+# Copyright 2020-Present Okta, Inc.
+#
+# 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.
+#
+
+Args = -H:ReflectionConfigurationResources=${.}/generated-reflection-config.json

impl/src/main/resources/META-INF/native-image/com.okta.sdk/okta-sdk-impl/native-image.properties

@@ -0,0 +1,17 @@
+#
+# Copyright 2020-Present Okta, Inc.
+#
+# 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.
+#
+
+Args = -H:ReflectionConfigurationResources=${.}/generated-reflection-config.json

impl/src/main/resources/META-INF/native-image/com.okta.sdk/okta-sdk-impl/reflect-config.json

@@ -0,0 +1,38 @@
+[
+  {
+    "name": "org.yaml.snakeyaml.Yaml",
+    "allDeclaredConstructors" : true
+  },
+  {
+    "name": "com.okta.sdk.impl.cache.DefaultCacheManagerBuilder",
+    "allDeclaredConstructors" : true
+  },
+  {
+    "name": "com.okta.sdk.impl.client.DefaultClientBuilder",
+    "allDeclaredConstructors" : true
+  },
+  {
+    "name": "com.okta.sdk.impl.ds.DiscriminatorConfig",
+    "allDeclaredFields": true,
+    "allDeclaredMethods": true,
+    "allDeclaredConstructors": true
+  },
+  {
+    "name": "com.okta.sdk.impl.ds.DiscriminatorConfig$ClassConfig",
+    "allDeclaredFields": true,
+    "allDeclaredMethods": true,
+    "allDeclaredConstructors": true
+  },
+  {
+    "name": "com.okta.sdk.impl.http.authc.SswsAuthenticator",
+    "allDeclaredConstructors" : true
+  },
+  {
+    "name": "com.okta.sdk.impl.resource.DefaultExtensibleResource",
+    "allDeclaredConstructors" : true
+  },
+  {
+    "name": "com.okta.sdk.impl.resource.DefaultVoidResource",
+    "allDeclaredConstructors" : true
+  }
+]

impl/src/main/resources/META-INF/native-image/com.okta.sdk/okta-sdk-impl/resource-config.json

@@ -0,0 +1,9 @@
+{
+  "resources":[
+    {"pattern":"\\QMETA-INF/okta/version.properties\\E"},
+    {"pattern":"\\QMETA-INF/services/com.okta.sdk.impl.ds.ResourceFactoryConfig\\E"},
+    {"pattern":"\\QMETA-INF/services/com.okta.sdk.impl.http.RequestExecutorFactory\\E"},
+    {"pattern":"\\Qcom/okta/sdk/config/okta.properties\\E"},
+    {"pattern":"\\Qcom/okta/sdk/resource/discrimination.json\\E"}
+  ]
+}

swagger-templates/src/main/java/com/okta/swagger/codegen/AbstractOktaJavaClientCodegen.java

@@ -133,6 +133,7 @@ public void preprocessSwagger(Swagger swagger) {
         moveOperationsToSingleClient(swagger);
         handleOktaLinkedOperations(swagger);
         buildDiscriminationMap(swagger);
+        buildGraalVMReflectionConfig(swagger);
     }
 
     /**
@@ -227,6 +228,33 @@ protected void buildDiscriminationMap(Swagger swagger) {
         });
     }
 
+    protected void buildGraalVMReflectionConfig(Swagger swagger) {
+
+        try {
+            List<Map<String, ?>> reflectionConfig = swagger.getDefinitions().keySet().stream()
+                .filter(it -> !enumList.contains(it)) // ignore enums
+                .map(this::fqcn)
+                .map(this::reflectionConfig)
+                .collect(Collectors.toList());
+
+            // this is slightly error prone, but this project only has `api` and `impl`
+            File projectDir = new File(outputFolder(), "../../..").getCanonicalFile();
+            String projectName = projectDir.getName();
+
+            File reflectionConfigFile = new File(projectDir, "target/classes/META-INF/native-image/com.okta.sdk/okta-sdk-" + projectName + "/generated-reflection-config.json");
+            if (!(reflectionConfigFile.getParentFile().exists() || reflectionConfigFile.getParentFile().mkdirs())) {
+                throw new IllegalStateException("Failed to create directory: "+ reflectionConfigFile.getParent());
+            }
+            new ObjectMapper().writerWithDefaultPrettyPrinter().writeValue(reflectionConfigFile, reflectionConfig);
+        } catch (IOException e) {
+            throw new IllegalStateException("Failed to write generated-reflection-config.json file", e);
+        }
+    }
+
+    protected Map<String, ?> reflectionConfig(String fqcn) {
+        return Collections.singletonMap("name", fqcn);
+    }
+
     protected void tagEnums(Swagger swagger) {
         swagger.getDefinitions().forEach((name, model) -> {
 
@@ -522,6 +550,14 @@ public String toModelImport(String name) {
         return super.toModelImport(name);
     }
 
+    protected String fqcn(String name) {
+        String className = toApiName(name);
+        if (modelTagMap.containsKey(className)) {
+            return modelPackage() +"."+ modelTagMap.get(className) +"."+ className;
+        }
+        return super.toModelImport(className);
+    }
+
     @Override
     public CodegenModel fromModel(String name, Model model, Map<String, Model> allDefinitions) {
        CodegenModel codegenModel = super.fromModel(name, model, allDefinitions);

swagger-templates/src/main/java/com/okta/swagger/codegen/OktaJavaClientImplCodegen.java

@@ -313,4 +313,11 @@ protected void buildDiscriminationMap(Swagger swagger) {
             throw new RuntimeException("Failed to write discrimination map to json: "+ destFileJson.getAbsolutePath(), e);
         }
     }
+
+    @Override
+    protected Map<String, ?> reflectionConfig(String fqcn) {
+        Map<String, Object> data = new HashMap<>(super.reflectionConfig(fqcn));
+        data.put("allDeclaredConstructors", true);
+        return data;
+    }
 }