Generate separate server endpoints per domain (#15513)

Author: jdpgrailsdev

airbyte-api/build.gradle

@@ -7,6 +7,49 @@ plugins {
 
 def specFile = "$projectDir/src/main/openapi/config.yaml"
 
+// Deprecated -- can be removed once airbyte-server is converted to use the per-domain endpoints generated by generateApiServer
+task generateApiServerLegacy(type: GenerateTask) {
+    def serverOutputDir = "$buildDir/generated/api/server"
+
+    inputs.file specFile
+    outputs.dir serverOutputDir
+
+    generatorName = "jaxrs-spec"
+    inputSpec = specFile
+    outputDir = serverOutputDir
+
+    apiPackage = "io.airbyte.api.generated"
+    invokerPackage = "io.airbyte.api.invoker.generated"
+    modelPackage = "io.airbyte.api.model.generated"
+
+    importMappings = [
+            'OAuthConfiguration'                : 'com.fasterxml.jackson.databind.JsonNode',
+            'SourceDefinitionSpecification'     : 'com.fasterxml.jackson.databind.JsonNode',
+            'SourceConfiguration'               : 'com.fasterxml.jackson.databind.JsonNode',
+            'DestinationDefinitionSpecification': 'com.fasterxml.jackson.databind.JsonNode',
+            'DestinationConfiguration'          : 'com.fasterxml.jackson.databind.JsonNode',
+            'StreamJsonSchema'                  : 'com.fasterxml.jackson.databind.JsonNode',
+            'StateBlob'                         : 'com.fasterxml.jackson.databind.JsonNode',
+            'FieldSchema'                       : 'com.fasterxml.jackson.databind.JsonNode',
+    ]
+
+    generateApiDocumentation = false
+
+    configOptions = [
+            dateLibrary  : "java8",
+            generatePom  : "false",
+            interfaceOnly: "true",
+            /*
+            JAX-RS generator does not respect nullable properties defined in the OpenApi Spec.
+            It means that if a field is not nullable but not set it is still returning a null value for this field in the serialized json.
+            The below Jackson annotation is made to only keep non null values in serialized json.
+            We are not yet using nullable=true properties in our OpenApi so this is a valid workaround at the moment to circumvent the default JAX-RS behavior described above.
+            Feel free to read the conversation on https://github.com/airbytehq/airbyte/pull/13370 for more details.
+            */
+            additionalModelTypeAnnotations: "\n@com.fasterxml.jackson.annotation.JsonInclude(com.fasterxml.jackson.annotation.JsonInclude.Include.NON_NULL)",
+    ]
+}
+
 task generateApiServer(type: GenerateTask) {
     def serverOutputDir = "$buildDir/generated/api/server"
 
@@ -45,10 +88,14 @@ task generateApiServer(type: GenerateTask) {
             We are not yet using nullable=true properties in our OpenApi so this is a valid workaround at the moment to circumvent the default JAX-RS behavior described above.
             Feel free to read the conversation on https://github.com/airbytehq/airbyte/pull/13370 for more details.
             */
-            additionalModelTypeAnnotations: "\n@com.fasterxml.jackson.annotation.JsonInclude(com.fasterxml.jackson.annotation.JsonInclude.Include.NON_NULL)"
+            additionalModelTypeAnnotations: "\n@com.fasterxml.jackson.annotation.JsonInclude(com.fasterxml.jackson.annotation.JsonInclude.Include.NON_NULL)",
+
+            // Generate separate classes for each endpoint "domain"
+            useTags: "true"
     ]
 }
-compileJava.dependsOn tasks.generateApiServer
+
+compileJava.dependsOn tasks.generateApiServerLegacy, tasks.generateApiServer
 
 task generateApiClient(type: GenerateTask) {
     def clientOutputDir = "$buildDir/generated/api/client"