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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2019,2022 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.core;
import org.onap.dcae.runtime.core.blueprint_creator.BlueprintCreator;
import java.time.ZoneId;
import java.time.Instant;
import java.time.format.DateTimeFormatter;
import java.util.List;
import java.util.ArrayList;
public class FlowGraphParser {
private FlowGraph<Node,Edge> flowGraph;
private BlueprintCreator blueprintCreator;
public FlowGraphParser(BlueprintCreator blueprintCreator) {
this.blueprintCreator = blueprintCreator;
}
public void parse(FlowGraph<Node, Edge> flowGraph) {
this.flowGraph = flowGraph;
}
public static class BlueprintVessel {
public String blueprint;
public String name;
public int version;
@Override
public String toString() {
return String.format("%s:%d", this.name, this.version);
}
}
private static int createBlueprintVersion() {
// Removed year from the text to fix invalid integer issue (DCAEGEN2-3028)
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("MMddHHmm").withZone(ZoneId.of("UTC"));
Instant instant = Instant.now();
String timestamp = formatter.format(instant);
return Integer.parseInt(timestamp);
}
private static String createBlueprintName(FlowGraph flowGraph, String componentName) {
// NOTE: Replacing whitespaces with dash
// NOTE: Separator must be dash or underbar otherwise cloudify will flip out
return String.format("%s_%s", flowGraph.getName().replace(" ", "-"), componentName);
}
public List<BlueprintVessel> createAndProcessBlueprints() {
//1. generate blueprints for all the nodes
for(Node node : flowGraph.getNodes()){
if(node.getComponentId().equals("dummy_id")){
continue;
}
BlueprintData blueprintData = new BlueprintData("1", blueprintCreator.createBlueprint(node.getComponentSpec()));
node.setBlueprintData(blueprintData);
}
//2. replace dmaap info from the edges
for(Edge edge : flowGraph.getEdges()){
String srcNodeId = edge.getSrc().getNode();
Node srcNode = getNodeFromId(srcNodeId);
blueprintCreator.resolveDmaapConnection(srcNode ,edge.getSrc().getPort(),edge.getMetadata().getName());
String tgtNodeId = edge.getTgt().getNode();
Node tgtNode = getNodeFromId(tgtNodeId);
blueprintCreator.resolveDmaapConnection(tgtNode ,edge.getTgt().getPort(),edge.getMetadata().getName());
}
//3. return processed blueprints along with blueprint_name
List<BlueprintVessel> blueprints = new ArrayList<>();
for(Node node: flowGraph.getNodes()){
if(node.getComponentId().equals("dummy_id")) {
continue;
}
BlueprintVessel bpv = new BlueprintVessel();
bpv.blueprint = node.getBlueprintData().getBlueprint_content();
bpv.version = createBlueprintVersion();
bpv.name = createBlueprintName(flowGraph, node.getComponentName());
blueprints.add(bpv);
}
return blueprints;
}
public Node getNodeFromId(String srcNodeId) {
for(Node node : flowGraph.getNodes()){
if (node.getComponentId().equals(srcNodeId)) return node;
}
return null;
}
}
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