Add Support to Generate GraphQL Schema for Local Service Variable Declaration

ballerina-tests/Dependencies.toml

@@ -22,7 +22,7 @@ dependencies = [
 [[package]]
 org = "ballerina"
 name = "cache"
-version = "3.7.0"
+version = "3.7.1"
 dependencies = [
 	{org = "ballerina", name = "constraint"},
 	{org = "ballerina", name = "jballerina.java"},
@@ -119,7 +119,7 @@ modules = [
 [[package]]
 org = "ballerina"
 name = "http"
-version = "2.10.2"
+version = "2.10.5"
 dependencies = [
 	{org = "ballerina", name = "auth"},
 	{org = "ballerina", name = "cache"},
@@ -311,7 +311,7 @@ dependencies = [
 [[package]]
 org = "ballerina"
 name = "observe"
-version = "1.2.0"
+version = "1.2.2"
 dependencies = [
 	{org = "ballerina", name = "jballerina.java"}
 ]
@@ -383,7 +383,7 @@ modules = [
 [[package]]
 org = "ballerina"
 name = "websocket"
-version = "2.10.0"
+version = "2.10.1"
 dependencies = [
 	{org = "ballerina", name = "auth"},
 	{org = "ballerina", name = "constraint"},

ballerina-tests/tests/01_listener_test.bal

@@ -144,3 +144,45 @@ function testAttachServiceWithSubscriptionToHttp1BasedListener() returns error?
         check validateNextMessage(wsClient2, expectedMsgPayload, id = "2");
     }
 }
+
+@test:Config {
+    groups: ["listener", "service_object"]
+}
+function testServiceDeclarationUsingLocalServiceObject() returns error? {
+    graphql:Service localService = service object {
+        resource function get greeting() returns string {
+            return "Hello world";
+        }
+    };
+    check basicListener.attach(localService, "/local_service_object");
+
+    string url = "http://localhost:9091/local_service_object";
+    string document = string `query { greeting }`;
+    json actualPayload = check getJsonPayloadFromService(url, document);
+    json expectedPayload = {
+        data: {
+            greeting: "Hello world"
+        }
+    };
+    check basicListener.detach(localService);
+    test:assertEquals(actualPayload, expectedPayload);
+}
+
+@test:Config {
+    groups: ["listener", "service_object"]
+}
+function testServiceDeclarationUsingObjectField() returns error? {
+    graphql:Service localService = (new ServiceDeclarationOnObjectField()).getService();
+    check basicListener.attach(localService, "/object_field_service_object");
+
+    string url = "http://localhost:9091/object_field_service_object";
+    string document = string `query { greeting }`;
+    json actualPayload = check getJsonPayloadFromService(url, document);
+    json expectedPayload = {
+        data: {
+            greeting: "Hello world"
+        }
+    };
+    check basicListener.detach(localService);
+    test:assertEquals(actualPayload, expectedPayload);
+}

ballerina-tests/tests/test_services.bal

@@ -2475,3 +2475,19 @@ service /defaultParam on wrappedListener {
 
     resource function get nestedField() returns NestedField => new;
 }
+
+class ServiceDeclarationOnObjectField {
+
+    private graphql:Service objectFieldService = service object {
+        resource function get greeting() returns string {
+            return "Hello world";
+        }
+    };
+
+    public function init() {}
+
+    public function getService() returns graphql:Service {
+        return self.objectFieldService;
+    }
+
+}

ballerina/Dependencies.toml

@@ -25,7 +25,7 @@ modules = [
 [[package]]
 org = "ballerina"
 name = "cache"
-version = "3.7.0"
+version = "3.7.1"
 dependencies = [
 	{org = "ballerina", name = "constraint"},
 	{org = "ballerina", name = "jballerina.java"},
@@ -97,7 +97,7 @@ modules = [
 [[package]]
 org = "ballerina"
 name = "http"
-version = "2.10.2"
+version = "2.10.5"
 dependencies = [
 	{org = "ballerina", name = "auth"},
 	{org = "ballerina", name = "cache"},
@@ -301,7 +301,7 @@ modules = [
 [[package]]
 org = "ballerina"
 name = "observe"
-version = "1.2.0"
+version = "1.2.2"
 dependencies = [
 	{org = "ballerina", name = "jballerina.java"}
 ]
@@ -376,7 +376,7 @@ modules = [
 [[package]]
 org = "ballerina"
 name = "websocket"
-version = "2.10.0"
+version = "2.10.1"
 dependencies = [
 	{org = "ballerina", name = "auth"},
 	{org = "ballerina", name = "constraint"},

changelog.md

@@ -8,6 +8,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ### Added
 -[[#1586] Add Compile Time Schema Generation for Default Parameters](https://github.com/ballerina-platform/module-ballerina-graphql/pull/1586)
+-[[#3317] Add Support to Generate GraphQL Schema for Local Service Variable Declaration](https://github.com/ballerina-platform/ballerina-library/issues/3317)
 
 ### Changed
 - [[#4634] Use Aliases in GraphQL Error Path](https://github.com/ballerina-platform/ballerina-standard-library/issues/4634)

compiler-plugin-tests/src/test/java/io/ballerina/stdlib/graphql/compiler/SchemaGenerationTest.java

@@ -207,6 +207,27 @@ public void testGraphqlDataLoader() {
         Assert.assertEquals(diagnosticResult.errorCount(), 0);
     }
 
+    @Test
+    public void testGraphqlLocalServiceObjects() {
+        String packagePath = "25_local_service_object_declarations";
+        DiagnosticResult diagnosticResult = getDiagnosticResult(packagePath);
+        Assert.assertEquals(diagnosticResult.errorCount(), 0);
+    }
+
+    @Test
+    public void testGraphqlObjectFieldServiceObjects() {
+        String packagePath = "26_object_field_service_object_declarations";
+        DiagnosticResult diagnosticResult = getDiagnosticResult(packagePath);
+        Assert.assertEquals(diagnosticResult.errorCount(), 0);
+    }
+
+    @Test
+    public void testMultipleInlineServiceDeclarations() {
+        String packagePath = "27_inline_service_declarations";
+        DiagnosticResult diagnosticResult = getDiagnosticResult(packagePath);
+        Assert.assertEquals(diagnosticResult.errorCount(), 0);
+    }
+
     private DiagnosticResult getDiagnosticResult(String path) {
         Path projectDirPath = RESOURCE_DIRECTORY.resolve(path);
         BuildProject project = BuildProject.load(getEnvironmentBuilder(), projectDirPath);

compiler-plugin-tests/src/test/resources/ballerina_sources/generator_tests/22_graphql_service_with_http_service/service.bal

@@ -16,15 +16,71 @@
 
 import ballerina/http;
 import ballerina/graphql;
+import ballerina/lang.runtime;
 
 service /greeting on new http:Listener(9090) {
     resource function get greeting() returns string {
         return "Hello, World!";
     }
 }
 
-service graphql:Service /query on new graphql:Listener(8080) {
-   resource function get name() returns string {
-       return "Jack";
-   }
+service / on new graphql:Listener(9091) {
+    resource function get greeting() returns string {
+        return "Hello from global listener binding service";
+    }
+}
+
+service /greeting on new http:Listener(9092) {
+    resource function get greeting() returns string {
+        return "Hello, World!";
+    }
+}
+
+graphql:Service globalService = service object {
+    resource function get greeting() returns string {
+        return "Hello from global service";
+    }
+};
+
+service /too on new graphql:Listener(9093) {
+    resource function get greeting() returns string {
+        return "Hello from global listener binding service too";
+    }
+}
+
+class TestService {
+    private graphql:Service fieldService = service object {
+        resource function get greeting() returns string {
+            return "Hello from object field service object";
+        }
+    };
+
+    public function init() {}
+
+    public function startService() returns error? {
+        graphql:Listener localListener = check new(9094);
+        check localListener.attach(self.fieldService);
+        check localListener.'start();
+        runtime:registerListener(localListener);
+    }
+}
+
+public function main() returns error? {
+    graphql:Service localService = service object {
+        resource function get greeting() returns string {
+            return "Hello from local service 2";
+        }
+    };
+
+    TestService serviceClass = new ();
+    check serviceClass.startService();
+
+    graphql:Listener localListener = check new(9095);
+    graphql:Listener globalListener = check new(9096);
+    check localListener.attach(localService);
+    check globalListener.attach(globalService);
+    check localListener.'start();
+    check globalListener.'start();
+    runtime:registerListener(localListener);
+    runtime:registerListener(globalListener);
 }

compiler-plugin-tests/src/test/resources/ballerina_sources/generator_tests/25_local_service_object_declarations/Ballerina.toml

@@ -0,0 +1,4 @@
+[package]
+org = "graphql_test"
+name = "test_package"
+version = "0.1.0"

compiler-plugin-tests/src/test/resources/ballerina_sources/generator_tests/25_local_service_object_declarations/service.bal

@@ -0,0 +1,39 @@
+// Copyright (c) 2024 WSO2 LLC. (http://www.wso2.com) All Rights Reserved.
+//
+// WSO2 LLC. licenses this file to you 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.
+
+import ballerina/lang.runtime;
+import ballerina/graphql;
+
+public function main() returns error? {
+    graphql:Service localService1 = service object {
+        resource function get greeting() returns string {
+            return "Hello from local service 1";
+        }
+    };
+    graphql:Service localService2 = service object {
+        resource function get greeting() returns string {
+            return "Hello from local service 1";
+        }
+    };
+    graphql:Listener localListener1 = check new(9090);
+    graphql:Listener localListener2 = check new(9091);
+    check localListener1.attach(localService1);
+    check localListener2.attach(localService2);
+    check localListener1.'start();
+    check localListener2.'start();
+    runtime:registerListener(localListener1);
+    runtime:registerListener(localListener2);
+}

compiler-plugin-tests/src/test/resources/ballerina_sources/generator_tests/26_object_field_service_object_declarations/Ballerina.toml

@@ -0,0 +1,4 @@
+[package]
+org = "graphql_test"
+name = "test_package"
+version = "0.1.0"

compiler-plugin-tests/src/test/resources/ballerina_sources/generator_tests/26_object_field_service_object_declarations/service.bal

@@ -0,0 +1,49 @@
+// Copyright (c) 2024 WSO2 LLC. (http://www.wso2.com) All Rights Reserved.
+//
+// WSO2 LLC. licenses this file to you 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.
+
+import ballerina/lang.runtime;
+import ballerina/graphql;
+
+class TestService {
+    private graphql:Service fieldService1 = service object {
+        resource function get greeting() returns string {
+            return "Hello from object field service object 1";
+        }
+    };
+    private graphql:Service fieldService2 = service object {
+        resource function get greeting() returns string {
+            return "Hello from object field service object 2";
+        }
+    };
+
+    public function init() {}
+
+    public function startService() returns error? {
+        graphql:Listener localListener1 = check new(9090);
+        graphql:Listener localListener2 = check new(9091);
+        check localListener1.attach(self.fieldService1);
+        check localListener2.attach(self.fieldService2);
+        check localListener1.'start();
+        check localListener2.'start();
+        runtime:registerListener(localListener1);
+        runtime:registerListener(localListener2);
+    }
+}
+
+public function main() returns error? {
+    TestService serviceClass = new ();
+    check serviceClass.startService();
+}

compiler-plugin-tests/src/test/resources/ballerina_sources/generator_tests/27_inline_service_declarations/Ballerina.toml

@@ -0,0 +1,4 @@
+[package]
+org = "graphql_test"
+name = "test_package"
+version = "0.1.0"

compiler-plugin-tests/src/test/resources/ballerina_sources/generator_tests/27_inline_service_declarations/service.bal

@@ -0,0 +1,17 @@
+// Copyright (c) 2024 WSO2 LLC. (http://www.wso2.com) All Rights Reserved.
+//
+// WSO2 LLC. licenses this file to you 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.
+
+import ballerina/lang.runtime; import ballerina/graphql; import ballerina/http; service / on new http:Listener(9090) { resource function get greet() returns string { return "Hello from global http service"; } } public function main() returns error? { graphql:Service gqlService = service object { resource function get greet() returns string { return "Hello from gql service"; } }; http:Service httpService = service object { resource function get greet() returns string { return "Hello from local http service"; } }; graphql:Listener gqlListener = check new(9091); http:Listener httpListener = check new(9092); check gqlListener.attach(gqlService); check httpListener.attach(httpService); check gqlListener.'start(); check httpListener.'start(); runtime:registerListener(gqlListener); runtime:registerListener(httpListener); }

compiler-plugin-tests/src/test/resources/ballerina_sources/generator_tests/28_with_distinct_service_class_type/Ballerina.toml

@@ -0,0 +1,4 @@
+[package]
+org = "graphql_test"
+name = "test_package"
+version = "0.1.0"