1 files changed, 111 insertions, 0 deletions
diff --git a/ms/blueprintsprocessor/modules/inbounds/selfservice-api/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/selfservice/api/BluePrintProcessingGRPCHandler.kt b/ms/blueprintsprocessor/modules/inbounds/selfservice-api/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/selfservice/api/BluePrintProcessingGRPCHandler.kt
new file mode 100644
index 000000000..79106c24a
--- /dev/null
+++ b/ms/blueprintsprocessor/modules/inbounds/selfservice-api/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/selfservice/api/BluePrintProcessingGRPCHandler.kt
@@ -0,0 +1,111 @@
+/*
+ * Copyright © 2017-2018 AT&T Intellectual Property.
+ * Modifications Copyright © 2019 IBM.
+ *
+ * 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.
+ */
+
+package org.onap.ccsdk.cds.blueprintsprocessor.selfservice.api
+
+import io.grpc.Status
+import io.grpc.stub.StreamObserver
+import kotlinx.coroutines.runBlocking
+import org.onap.ccsdk.cds.blueprintsprocessor.core.BluePrintCoreConfiguration
+import org.onap.ccsdk.cds.blueprintsprocessor.core.utils.toJava
+import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintProcessorException
+import org.onap.ccsdk.cds.controllerblueprints.processing.api.BluePrintProcessingServiceGrpc
+import org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceInput
+import org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceOutput
+import org.onap.ccsdk.cds.error.catalog.core.ErrorCatalogCodes
+import org.onap.ccsdk.cds.error.catalog.core.utils.errorCauseOrDefault
+import org.onap.ccsdk.cds.error.catalog.core.utils.errorMessageOrDefault
+import org.onap.ccsdk.cds.error.catalog.services.ErrorCatalogService
+import org.slf4j.LoggerFactory
+import org.springframework.security.access.prepost.PreAuthorize
+import org.springframework.stereotype.Service
+import java.util.concurrent.Phaser
+import javax.annotation.PreDestroy
+
+@Service
+open class BluePrintProcessingGRPCHandler(
+    private val bluePrintCoreConfiguration: BluePrintCoreConfiguration,
+    private val executionServiceHandler: ExecutionServiceHandler,
+    private val errorCatalogService: ErrorCatalogService
+) :
+    BluePrintProcessingServiceGrpc.BluePrintProcessingServiceImplBase() {
+
+    private val log = LoggerFactory.getLogger(BluePrintProcessingGRPCHandler::class.java)
+
+    private val ph = Phaser(1)
+
+    @PreAuthorize("hasRole('USER')")
+    override fun process(
+        responseObserver: StreamObserver<ExecutionServiceOutput>
+    ): StreamObserver<ExecutionServiceInput> {
+
+        return object : StreamObserver<ExecutionServiceInput> {
+            override fun onNext(executionServiceInput: ExecutionServiceInput) {
+                try {
+                    ph.register()
+                    runBlocking {
+                        executionServiceHandler.process(executionServiceInput.toJava(), responseObserver)
+                    }
+                } catch (e: Exception) {
+                    onError(e)
+                } finally {
+                    ph.arriveAndDeregister()
+                }
+            }
+
+            override fun onError(error: Throwable) {
+                log.debug("Fail to process message", error)
+                if (error is BluePrintProcessorException) onErrorCatalog(error) else onError(error)
+            }
+
+            fun onError(error: Exception) {
+                responseObserver.onError(
+                    Status.INTERNAL
+                        .withDescription(error.errorMessageOrDefault())
+                        .withCause(error.errorCauseOrDefault())
+                        .asException()
+                )
+            }
+
+            fun onErrorCatalog(error: BluePrintProcessorException) {
+                if (error.protocol == "") {
+                    error.grpc(ErrorCatalogCodes.GENERIC_FAILURE)
+                }
+                val errorPayload = errorCatalogService.errorPayload(error)
+                val grpcCode = Status.fromCodeValue(errorPayload.code)
+                responseObserver.onError(
+                    grpcCode
+                        .withDescription(errorPayload.message)
+                        .withCause(error.errorCauseOrDefault())
+                        .asException()
+                )
+            }
+
+            override fun onCompleted() {
+                log.info("Completed")
+            }
+        }
+    }
+
+    @PreDestroy
+    fun preDestroy() {
+        val name = "BluePrintProcessingGRPCHandler"
+        log.info("Starting to shutdown $name waiting for in-flight requests to finish ...")
+        ph.arriveAndAwaitAdvance()
+        log.info("Done waiting in $name")
+    }
+}