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feat(import): import BPMN Semantic from CSV file (#48)
Create BPMN Semantic using 2 CSV * one contains the 'nodes' * one contains the 'edges' Once the BPMN semantic is created, the full diagram can be generated
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java/src/main/java/io/process/analytics/tools/bpmn/generator/App2.java
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| @@ -0,0 +1,38 @@ | ||
| package io.process.analytics.tools.bpmn.generator; | ||
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| import static io.process.analytics.tools.bpmn.generator.internal.BpmnInOut.defaultBpmnInOut; | ||
| import static io.process.analytics.tools.bpmn.generator.internal.FileUtils.fileContent; | ||
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| import java.io.File; | ||
| import java.io.IOException; | ||
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| import io.process.analytics.tools.bpmn.generator.input.CSVtoBPMN; | ||
| import io.process.analytics.tools.bpmn.generator.internal.BpmnInOut; | ||
| import io.process.analytics.tools.bpmn.generator.internal.generated.model.TDefinitions; | ||
| import lombok.extern.log4j.Log4j2; | ||
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| @Log4j2 | ||
| public class App2 extends App { | ||
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| public App2(BpmnInOut bpmnInOut) { | ||
| super(bpmnInOut); | ||
| } | ||
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| public static void main(String[] args) throws IOException { | ||
| File nodeDiscovery = new File(args[0]); | ||
| File edgeDiscovery = new File(args[1]); | ||
| File outputFile = new File(args[2]); | ||
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| new App2(defaultBpmnInOut()).process(nodeDiscovery, edgeDiscovery, outputFile); | ||
| } | ||
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| private void process(File nodeDiscovery, File edgeDiscovery, File outputFile) throws IOException { | ||
| log.info("Converting CSV into internal model"); | ||
| TDefinitions definitions = new CSVtoBPMN().readFromCSV(fileContent(nodeDiscovery), fileContent(edgeDiscovery)); | ||
| log.info("Conversion done"); | ||
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| LayoutSortedDiagram layoutSortedDiagram = computeLayout(definitions); | ||
| exportToBpmn(layoutSortedDiagram, outputFile); | ||
| } | ||
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| } |
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113 changes: 113 additions & 0 deletions
113
java/src/main/java/io/process/analytics/tools/bpmn/generator/input/CSVtoBPMN.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,113 @@ | ||
| package io.process.analytics.tools.bpmn.generator.input; | ||
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| import static io.process.analytics.tools.bpmn.generator.internal.Semantic.addFlowNodes; | ||
| import static io.process.analytics.tools.bpmn.generator.internal.Semantic.addSequenceFlows; | ||
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| import java.util.ArrayList; | ||
| import java.util.HashMap; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
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| import javax.xml.XMLConstants; | ||
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| import io.process.analytics.tools.bpmn.generator.internal.Semantic; | ||
| import io.process.analytics.tools.bpmn.generator.internal.generated.model.*; | ||
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| public class CSVtoBPMN { | ||
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| // map original flow element id with the values we are using | ||
| // id cannot be numeric, in that case we map the id with a generated one, letting edge reference element ids with the values we are using for BPMN | ||
| private final Map<String, String> mappingShapeId = new HashMap<>(); | ||
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| public TDefinitions readFromCSV(String nodes, String edges) { | ||
| TProcess process = new TProcess(); | ||
| process.setId("process_1"); | ||
| TDefinitions definitions = new TDefinitions(); | ||
| definitions.setId("definitions_1"); | ||
| definitions.setTargetNamespace(XMLConstants.NULL_NS_URI); | ||
| Semantic semantic = new Semantic(definitions); | ||
| semantic.add(process); | ||
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| addFlowNodes(process, getFlowNodeElements(nodes)); | ||
| addSequenceFlows(process, getEdgeElements(edges)); | ||
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| return definitions; | ||
| } | ||
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| private List<TFlowNode> getFlowNodeElements(String nodes) { | ||
| String[] lines = toLinesWithoutHeader(nodes); | ||
| List<TFlowNode> flowElements = new ArrayList<>(); | ||
| for (String line : lines) { | ||
| if(line == null){ | ||
| continue; | ||
| } | ||
| String[] node = line.split(","); | ||
| TFlowNode userTask = new TUserTask(); | ||
| userTask.setName(removeEnclosingDoubleQuote(node[2])); | ||
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| String originalId = node[1]; | ||
| String bpmnId = originalId; | ||
| if (isNumeric(originalId)) { | ||
| bpmnId = "bpmnElement_" + originalId; | ||
| } | ||
| this.mappingShapeId.put(originalId, bpmnId); | ||
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| userTask.setId(bpmnId); | ||
| flowElements.add(userTask); | ||
| } | ||
| return flowElements; | ||
| } | ||
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| private static String removeEnclosingDoubleQuote(String s) { | ||
| return s.replaceAll("^\"|\"$", ""); | ||
| } | ||
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| private String[] toLinesWithoutHeader(String fileContent) { | ||
| String[] lines = fileContent.split("\n"); | ||
| lines[0] = null; | ||
| return lines; | ||
| } | ||
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| private List<TSequenceFlow> getEdgeElements(String edges) { | ||
| String[] lines = toLinesWithoutHeader(edges); | ||
| List<TSequenceFlow> flowElements = new ArrayList<>(); | ||
| for (String line : lines) { | ||
| if(line == null){ | ||
| continue; | ||
| } | ||
| String[] edge = line.split(","); | ||
| TSequenceFlow tSequenceFlow = new TSequenceFlow(); | ||
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| TUserTask sourceRef = new TUserTask(); | ||
| tSequenceFlow.setSourceRef(sourceRef); | ||
| sourceRef.setId(this.mappingShapeId.getOrDefault(edge[2], edge[2])); | ||
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| TUserTask targetRef = new TUserTask(); | ||
| tSequenceFlow.setTargetRef(targetRef); | ||
| targetRef.setId(this.mappingShapeId.getOrDefault(edge[3], edge[3])); | ||
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| String id = edge[1]; | ||
| if (isNumeric(id)) { | ||
| id = "sequenceFlow_" + id; | ||
| } | ||
| tSequenceFlow.setId(id); | ||
| flowElements.add(tSequenceFlow); | ||
| } | ||
| return flowElements; | ||
| } | ||
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| // TODO not optimal for performance, see https://www.baeldung.com/java-check-string-number | ||
| // bpmn element id cannot be numeric | ||
| private static boolean isNumeric(String s) { | ||
| if (s == null) { | ||
| return false; | ||
| } | ||
| try { | ||
| Double.parseDouble(s); | ||
| } catch (NumberFormatException nfe) { | ||
| return false; | ||
| } | ||
| return true; | ||
| } | ||
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| } |
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