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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2021 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 com.fasterxml.jackson.databind.ObjectMapper;
import org.onap.dcae.runtime.core.Edge;
import org.onap.dcae.runtime.core.EdgeLocation;
import org.onap.dcae.runtime.core.FlowGraph;
import org.onap.dcae.runtime.core.FlowGraphParser;
import org.onap.dcae.runtime.core.Node;
import org.onap.dcae.runtime.web.exception.ActionsNotDefinedException;
import org.onap.dcae.runtime.web.models.Action;
import org.onap.dcae.runtime.web.models.DistributeGraphRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
/**
* A helper class that parses the actions from the request and apply them to the main graph
*/
@Component
public class GraphActionsParser {
@Autowired
private FlowGraphParser flowGraphParser;
void applyActionsToGraph(FlowGraph<Node, Edge> mainFlowGraph, 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);
}
}
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