1 files changed, 154 insertions, 0 deletions
diff --git a/mod/runtimeapi/runtime-web/src/main/java/org/onap/dcae/runtime/web/service/GraphServiceImpl.java b/mod/runtimeapi/runtime-web/src/main/java/org/onap/dcae/runtime/web/service/GraphServiceImpl.java
new file mode 100644
index 0000000..f1329c1
--- /dev/null
+++ b/mod/runtimeapi/runtime-web/src/main/java/org/onap/dcae/runtime/web/service/GraphServiceImpl.java
@@ -0,0 +1,154 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 2019 AT&T Intellectual Property. 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.
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.dcae.runtime.web.service;
+
+import org.onap.dcae.runtime.core.*;
+import org.onap.dcae.runtime.core.FlowGraphParser.BlueprintVessel;
+import org.onap.dcae.runtime.web.exception.ActionsNotDefinedException;
+import org.onap.dcae.runtime.web.exception.MainGraphAlreadyExistException;
+import org.onap.dcae.runtime.web.exception.MainGraphNotFoundException;
+import org.onap.dcae.runtime.web.models.Action;
+import org.onap.dcae.runtime.web.models.DistributeGraphRequest;
+import org.onap.dcae.runtime.web.models.GraphRequest;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+public class GraphServiceImpl implements GraphService{
+
+    @Autowired
+    BlueprintInventory blueprintInventory;
+
+    private FlowGraph<Node, Edge> mainFlowGraph;
+
+    Logger logger = LoggerFactory.getLogger(GraphServiceImpl.class);
+
+    @Autowired
+    private FlowGraphParser flowGraphParser;
+
+    @Override
+    public FlowGraph<Node, Edge> getMainGraph() {
+        if(mainFlowGraph == null){
+            throw new MainGraphNotFoundException();
+        }
+        return mainFlowGraph;
+    }
+
+    @Override
+    public boolean initializeMainGraph(GraphRequest mainGraphRequest) {
+        if(mainFlowGraph != null){
+            throw new MainGraphAlreadyExistException("Can not initialize the main graph, it already exists");
+        }
+        mainFlowGraph = new FlowGraph<Node,Edge>(mainGraphRequest.getId(),mainGraphRequest.getName(),
+                            true, mainGraphRequest.getDescription());
+        mainFlowGraph.addNode(getDummyNode());
+        flowGraphParser.parse(mainFlowGraph);
+        return true;
+    }
+
+    private Node getDummyNode() {
+        return new Node("dummy_id","dummy_name","dummy_compspec");
+    }
+
+    @Override
+    public List<BlueprintVessel> distribute(DistributeGraphRequest distributeGraphRequest) {
+        //1.Iterate through list of actions
+        logger.info("applying actions to graph");
+        applyActionsToGraph(distributeGraphRequest);
+
+        //2. generate blueprint from compspec of the node
+        logger.info("generating blueprints for the affected nodes");
+        List<BlueprintVessel> blueprints = generateBlueprintsForAffectedNodes(distributeGraphRequest);
+
+        //3a. Push blueprints to the inventory
+        logger.info("pushing bluepirnts to the dashboard inventrory");
+        blueprintInventory.distributeToInventory(blueprints);
+        //3b. return blueprint map
+        return blueprints;
+    }
+
+    @Override
+    public void deleteMainGraph() {
+        if(mainFlowGraph == null){
+            throw new MainGraphNotFoundException();
+        }
+        mainFlowGraph = null;
+    }
+
+    private List<BlueprintVessel> generateBlueprintsForAffectedNodes(DistributeGraphRequest distributeGraphRequest) {
+        return flowGraphParser.createAndProcessBlueprints();
+    }
+
+    private void applyActionsToGraph(DistributeGraphRequest distributeGraphRequest) {
+        if(distributeGraphRequest.getActions() == null){
+            throw new ActionsNotDefinedException("Action(s) must be defined in the request");
+        }
+        for(Action action : distributeGraphRequest.getActions()){
+            if(action.getCommand().equals("addnode")){
+                Node node = prepareNodeFromAddNAddNodeAction(action);
+                mainFlowGraph.addNode(node);
+            }
+            else if(action.getCommand().equals("addedge")) {
+                Edge edge = prepareEdgeFromAddEdgeAction(action);
+                Node srcNode = flowGraphParser.getNodeFromId(edge.getSrc().getNode());
+                Node tgtNode = flowGraphParser.getNodeFromId(edge.getTgt().getNode());
+                srcNode = fillPlaceholderIfNodeIsEmpty(srcNode);
+                tgtNode =fillPlaceholderIfNodeIsEmpty(tgtNode);
+                mainFlowGraph.addEdge(srcNode,tgtNode,edge);
+            }
+        }
+    }
+
+    private Node fillPlaceholderIfNodeIsEmpty(Node node) {
+        if (node == null) {
+            node = flowGraphParser.getNodeFromId("dummy_id");
+        }
+        return node;
+    }
+
+
+    private Edge prepareEdgeFromAddEdgeAction(Action action) {
+        ObjectMapper objectMapper = new ObjectMapper();
+        Edge edge = objectMapper.convertValue(action.getPayload(),Edge.class);
+        return edge;
+    }
+
+    private void fillPlaceholderIfLocaionsAreEmpty(Edge edge) {
+        if(edge.getSrc().getNode() == null && edge.getSrc().getPort() == null){
+            EdgeLocation src = new EdgeLocation("node-id-placeholder", "node-port-placeholder");
+            edge.setSrc(src);
+        }
+        if(edge.getTgt().getNode() == null && edge.getTgt().getPort() == null){
+            EdgeLocation tgt = new EdgeLocation("node-id-placeholder", "node-port-placeholder");
+            edge.setTgt(tgt);
+        }
+    }
+
+    private Node prepareNodeFromAddNAddNodeAction(Action action) {
+        String componentId = (String) action.getPayload().get("component_id");
+        String componentName = (String) action.getPayload().get("name");
+        String componentSpec = (String) action.getPayload().get("component_spec");
+        return new Node(componentId,componentName,componentSpec);
+    }
+
+}