Add service composition building blocks

Issue-ID: SO-3811
Signed-off-by: Jozsef Csongvai <jozsef.csongvai@bell.ca>
Change-Id: I1f3eb0b6ae0e6ac1ce90dbd10d3737bb195c673b

3 files changed, 169 insertions, 0 deletions

diff --git a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/service/composition/CreateChildServiceBB.java b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/service/composition/CreateChildServiceBB.java
new file mode 100644
index 0000000000..3672df4dba
--- /dev/null
+++ b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/service/composition/CreateChildServiceBB.java
@@ -0,0 +1,95 @@
+/*-
+ * Copyright (C) 2021 Bell Canada. 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.
+ * 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.so.bpmn.infrastructure.service.composition;
+
+import static org.onap.so.bpmn.infrastructure.service.composition.ServiceCompositionConstants.CHILD_SVC_REQ_ERROR;
+import static org.onap.so.bpmn.infrastructure.service.composition.ServiceCompositionConstants.CHILD_SVC_REQ_PAYLOAD;
+import static org.onap.so.bpmn.infrastructure.service.composition.ServiceCompositionConstants.CHILD_SVC_REQ_ID;
+import static org.onap.so.bpmn.infrastructure.service.composition.ServiceCompositionConstants.CHILD_SVC_INSTANCE_ID;
+import static org.onap.so.bpmn.infrastructure.service.composition.ServiceCompositionConstants.CHILD_SVC_REQ_CORRELATION_ID;
+import java.util.Map;
+import java.util.Objects;
+import java.util.UUID;
+import org.onap.logging.filter.base.ONAPComponents;
+import org.onap.so.bpmn.common.BuildingBlockExecution;
+import org.onap.so.bpmn.servicedecomposition.entities.ResourceKey;
+import org.onap.so.client.exception.ExceptionBuilder;
+import org.onap.so.client.orchestration.ApiHandlerClient;
+import org.onap.so.serviceinstancebeans.ServiceInstancesRequest;
+import org.onap.so.serviceinstancebeans.ServiceInstancesResponse;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+@Component
+public class CreateChildServiceBB {
+
+    private final Logger log = LoggerFactory.getLogger(this.getClass());
+
+    @Autowired
+    protected ExceptionBuilder exceptionBuilder;
+
+    @Autowired
+    private ApiHandlerClient apiHandlerClient;
+
+    public void buildRequest(final BuildingBlockExecution buildingBlockExecution) {
+        try {
+            log.info("Building Create Service Request");
+            Map<ResourceKey, String> lookupMap = buildingBlockExecution.getLookupMap();
+            String childSvcInstanceName = lookupMap.get(ResourceKey.CHILD_SERVICE_INSTANCE_NAME);
+            Objects.requireNonNull(childSvcInstanceName, "Child service instance name is required");
+
+            ServiceInstancesRequest sir = ChildServiceRequestBuilder
+                    .getInstance(buildingBlockExecution, childSvcInstanceName)
+                    .setParentRequestId(
+                            buildingBlockExecution.getGeneralBuildingBlock().getRequestContext().getMsoRequestId())
+                    .setCorrelationId(UUID.randomUUID().toString()).build();
+            buildingBlockExecution.setVariable(CHILD_SVC_REQ_PAYLOAD, sir);
+        } catch (Exception e) {
+            exceptionBuilder.buildAndThrowWorkflowException(buildingBlockExecution, 10002, e.getMessage(),
+                    ONAPComponents.SO);
+        }
+    }
+
+    public void sendRequest(final BuildingBlockExecution buildingBlockExecution) throws Exception {
+        try {
+            buildingBlockExecution.getLookupMap();
+            ServiceInstancesRequest sir = buildingBlockExecution.getVariable(CHILD_SVC_REQ_PAYLOAD);
+            log.info("Sending Create Service Request: \n{}", sir.toString());
+            buildingBlockExecution.setVariable(CHILD_SVC_REQ_CORRELATION_ID,
+                    sir.getRequestDetails().getRequestInfo().getCorrelator());
+
+            ServiceInstancesResponse response = apiHandlerClient.createServiceInstance(sir);
+            buildingBlockExecution.setVariable(CHILD_SVC_REQ_ID, response.getRequestReferences().getRequestId());
+            buildingBlockExecution.setVariable(CHILD_SVC_INSTANCE_ID, response.getRequestReferences().getInstanceId());
+        } catch (Exception e) {
+            exceptionBuilder.buildAndThrowWorkflowException(buildingBlockExecution, 10003, e.getMessage(),
+                    ONAPComponents.SO);
+        }
+    }
+
+    public void handleFailure(final BuildingBlockExecution buildingBlockExecution) {
+        Map<ResourceKey, String> lookupMap = buildingBlockExecution.getLookupMap();
+        String childSvcInstanceName = lookupMap.get(ResourceKey.CHILD_SERVICE_INSTANCE_NAME);
+        String childErrorMessage = buildingBlockExecution.getVariable(CHILD_SVC_REQ_ERROR);
+        String errorMessage =
+                String.format("Failed creating child service %s %s", childSvcInstanceName, childErrorMessage);
+        exceptionBuilder.buildAndThrowWorkflowException(buildingBlockExecution, 10001, errorMessage, ONAPComponents.SO);
+    }
+
+}
diff --git a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/service/composition/DeleteChildServiceBB.java b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/service/composition/DeleteChildServiceBB.java
new file mode 100644
index 0000000000..a3f70c8f5b
--- /dev/null
+++ b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/service/composition/DeleteChildServiceBB.java
@@ -0,0 +1,42 @@
+/*-
+ * Copyright (C) 2021 Bell Canada. 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.
+ * 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.so.bpmn.infrastructure.service.composition;
+
+import org.onap.so.bpmn.common.BuildingBlockExecution;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Component;
+
+@Component
+public class DeleteChildServiceBB {
+
+    private final Logger log = LoggerFactory.getLogger(this.getClass());
+
+    public void buildRequest(final BuildingBlockExecution buildingBlockExecution) {
+        log.info("Building Delete Service Request");
+    }
+
+    public void sendRequest(final BuildingBlockExecution buildingBlockExecution) {
+        log.info("Sending Delete Service Request");
+    }
+
+    public void handleFailure(final BuildingBlockExecution buildingBlockExecution, final String responsePayload) {
+        // log error
+        // build workflowException with proper message
+    }
+
+}
diff --git a/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/service/composition/ServiceCompositionConstants.java b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/service/composition/ServiceCompositionConstants.java
new file mode 100644
index 0000000000..6b209bdcef
--- /dev/null
+++ b/bpmn/so-bpmn-tasks/src/main/java/org/onap/so/bpmn/infrastructure/service/composition/ServiceCompositionConstants.java
@@ -0,0 +1,32 @@
+/*-
+ * Copyright (C) 2021 Bell Canada. 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.
+ * 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.so.bpmn.infrastructure.service.composition;
+
+public class ServiceCompositionConstants {
+
+    public static final String CHILD_SVC_REQ_PAYLOAD = "childServiceRequestPayload";
+    public static final String CHILD_SVC_REQ_ID = "childServiceRequestId";
+    public static final String CHILD_SVC_INSTANCE_ID = "childServiceInstanceId";
+    public static final String IS_CHILD_PROCESS = "isChildProcess";
+    public static final String CHILD_SVC_REQ_CORRELATION_ID = "childServiceRequestCorrelationId";
+    public static final String CHILD_SVC_REQ_TIMEOUT = "childServiceRequestTimeout";
+    public static final String CHILD_SVC_REQ_STATUS = "CHILD_SVC_REQ_STATUS";
+    public static final String CHILD_SVC_REQ_ERROR = "CHILD_SVC_REQ_ERROR";
+    public static final String CHILD_SVC_REQ_MESSAGE_NAME = "ChildServiceRequest";
+    public static final String PARENT_CORRELATION_ID = "parentCorrelationId";
+
+}