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feat(BpmnElementsSearcher): provide options to deduplicate elements #131

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Oct 4, 2023
Merged

feat(BpmnElementsSearcher): provide options to deduplicate elements #131

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c48d64d
feat(BpmnElementsSearcher): provide options to deduplicate elements
tbouffard Oct 3, 2023
d38f236
remove extra break line
tbouffard Oct 3, 2023
0d9ba56
Merge branch 'main' into feat/elements_searcher_options_to_manage_dup…
tbouffard Oct 4, 2023
690345c
lint imports
tbouffard Oct 4, 2023
889f26b
update expect in "ElementsPlugin" tests after update of the BPMN diagram
tbouffard Oct 4, 2023
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40 changes: 36 additions & 4 deletions packages/addons/src/bpmn-elements.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -19,21 +19,53 @@ import { FlowKind, ShapeBpmnElementKind, ShapeUtil as BaseShapeUtil } from 'bpmn

const allBpmnElementKinds: BpmnElementKind[] = [...Object.values(ShapeBpmnElementKind), ...Object.values(FlowKind)];

/**
* Options to deduplicate elements when several names match.
*/
export type DeduplicateNamesOptions = {
/** If not set, use all `BpmnElementKind` values. */
kinds?: BpmnElementKind[];
/** Apply custom function to filter duplicates. */
filter?: (bpmnSemantic: BpmnSemantic) => boolean;
};

// eslint-disable-next-line @typescript-eslint/no-unused-vars
const acceptAll = (_bpmnSemantic: BpmnSemantic): boolean => true;

/**
* Provides workarounds for {@link https://github.com/process-analytics/bpmn-visualization-js/issues/2453}.
*/
export class BpmnElementsSearcher {
constructor(private readonly elementsRegistry: ElementsRegistry) {}

/**
* Find the ID of the first element that matches the provided name.
* @param name the name of the element to retrieve.
*/
getElementIdByName(name: string): string | undefined {
return this.getElementByName(name)?.id;
}

// not optimize, do a full lookup at each call
private getElementByName(name: string): BpmnSemantic | undefined {
/**
* Find the element that matches the provided name.
*
* Use the `deduplicateOptions` parameter to modify the default behavior of deduplication processing.
*
* The deduplication process is done in this order:
* - look for elements matching the provided kinds. If not specified, use all `BpmnElementKind` values.
* - apply the deduplication filter if provided, otherwise take the first element corresponding to the name provided.
*
* @param name the name of the element to retrieve.
* @param deduplicateOptions if not defined, or if the object doesn't define any properties, duplicates are filtered out by selecting the first element corresponding to the name provided.
*/
getElementByName(name: string, deduplicateOptions?: DeduplicateNamesOptions): BpmnSemantic | undefined {
// Not optimized, do a full lookup at each call
// Split query by kind to avoid returning a big chunk of data
for (const kind of allBpmnElementKinds) {
const candidate = this.elementsRegistry.getModelElementsByKinds(kind).find(element => element.name === name);
for (const kind of deduplicateOptions?.kinds ?? allBpmnElementKinds) {
const candidate = this.elementsRegistry
.getModelElementsByKinds(kind)
.filter(element => element.name === name)
.find(element => (deduplicateOptions?.filter ?? acceptAll)(element));
if (candidate) {
return candidate;
}
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39 changes: 20 additions & 19 deletions packages/addons/test/fixtures/bpmn/search-elements.bpmn
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Original file line number Diff line number Diff line change
@@ -1,15 +1,15 @@
<?xml version="1.0" encoding="UTF-8"?>
<bpmn:definitions xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:bpmn="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:dc="http://www.omg.org/spec/DD/20100524/DC" xmlns:di="http://www.omg.org/spec/DD/20100524/DI" id="Definitions_1" targetNamespace="http://example.com/schema/bpmn">
<bpmn:collaboration id="Collaboration_1jke0md">
<bpmn:participant id="Participant_0onpt9o" processRef="Process_1" />
<bpmn:participant id="Participant_0zym2fg" processRef="Process_0qq1mgm" />
<bpmn:participant id="Participant_1" processRef="Process_1" />
<bpmn:participant id="Participant_2" processRef="Process_2" />
<bpmn:messageFlow id="messageFlow_1" name="message flow 1" sourceRef="Event_1fo3lwp" targetRef="Event_0wvq8ch" />
</bpmn:collaboration>
<bpmn:process id="Process_1" isExecutable="false">
<bpmn:startEvent id="StartEvent_1" name="start event 1">
<bpmn:outgoing>Flow_1yf7yd6</bpmn:outgoing>
</bpmn:startEvent>
<bpmn:task id="Task_1" name="task 1">
<bpmn:task id="Task_1" name="task 1 with duplicate name">
<bpmn:incoming>Flow_1yf7yd6</bpmn:incoming>
<bpmn:outgoing>Flow_0th6cj1</bpmn:outgoing>
</bpmn:task>
Expand All @@ -27,10 +27,10 @@
<bpmn:incoming>Flow_1xozzqt</bpmn:incoming>
<bpmn:outgoing>Flow_1cj2f9n</bpmn:outgoing>
</bpmn:task>
<bpmn:task id="Task_with_same_name_as_Task_1" name="task 1">
<bpmn:userTask id="UserTask_with_same_name_as_Task_1" name="task 1 with duplicate name">
<bpmn:incoming>Flow_1a9vtky</bpmn:incoming>
<bpmn:outgoing>Flow_0i4ule4</bpmn:outgoing>
</bpmn:task>
</bpmn:userTask>
<bpmn:exclusiveGateway id="Gateway_0t7d2lu" name="gateway 2">
<bpmn:incoming>Flow_0qnma25</bpmn:incoming>
<bpmn:incoming>Flow_045a06d</bpmn:incoming>
Expand All @@ -46,10 +46,10 @@
<bpmn:sequenceFlow id="Flow_0th6cj1" sourceRef="Task_1" targetRef="Gateway_1" />
<bpmn:sequenceFlow id="Flow_18zkq4t" sourceRef="Gateway_1" targetRef="Task_2_1" />
<bpmn:sequenceFlow id="Flow_1xozzqt" sourceRef="Gateway_1" targetRef="Activity_08z13ne" />
<bpmn:sequenceFlow id="Flow_1a9vtky" sourceRef="Gateway_1" targetRef="Task_with_same_name_as_Task_1" />
<bpmn:sequenceFlow id="Flow_1a9vtky" sourceRef="Gateway_1" targetRef="UserTask_with_same_name_as_Task_1" />
<bpmn:sequenceFlow id="Flow_045a06d" sourceRef="Task_2_1" targetRef="Gateway_0t7d2lu" />
<bpmn:sequenceFlow id="Flow_1cj2f9n" sourceRef="Activity_08z13ne" targetRef="Gateway_0t7d2lu" />
<bpmn:sequenceFlow id="Flow_0i4ule4" sourceRef="Task_with_same_name_as_Task_1" targetRef="Event_0wvq8ch" />
<bpmn:sequenceFlow id="Flow_0i4ule4" sourceRef="UserTask_with_same_name_as_Task_1" targetRef="Event_0wvq8ch" />
<bpmn:sequenceFlow id="Flow_0qnma25" sourceRef="Event_0wvq8ch" targetRef="Gateway_0t7d2lu" />
<bpmn:endEvent id="Event_1hr2hqx" name="end event 1">
<bpmn:incoming>Flow_0p544v1</bpmn:incoming>
Expand All @@ -58,16 +58,16 @@
<bpmn:textAnnotation id="TextAnnotation_1">
<bpmn:text>Duplicated name on purpose</bpmn:text>
</bpmn:textAnnotation>
<bpmn:association id="Association_0fwvz81" sourceRef="Task_with_same_name_as_Task_1" targetRef="TextAnnotation_1" />
<bpmn:association id="Association_0fwvz81" sourceRef="UserTask_with_same_name_as_Task_1" targetRef="TextAnnotation_1" />
</bpmn:process>
<bpmn:process id="Process_0qq1mgm">
<bpmn:sequenceFlow id="sequenceFlow_10" name="seq flow 10" sourceRef="Event_1ndg0m5" targetRef="Activity_1rwjkd0" />
<bpmn:sequenceFlow id="sequenceFlow_11" name="seq flow 11" sourceRef="Activity_1rwjkd0" targetRef="Event_1fo3lwp" />
<bpmn:process id="Process_2">
<bpmn:sequenceFlow id="sequenceFlow_10" name="seq flow 10" sourceRef="Event_1ndg0m5" targetRef="Task_with_duplicated_name_with_textAnnotations" />
<bpmn:sequenceFlow id="sequenceFlow_11" name="seq flow 11" sourceRef="Task_with_duplicated_name_with_textAnnotations" targetRef="Event_1fo3lwp" />
<bpmn:sequenceFlow id="sequenceFlow_with_same_name_as_sequenceFlow_11" name="seq flow 11" sourceRef="Event_1fo3lwp" targetRef="Event_0md1mpw" />
<bpmn:startEvent id="Event_1ndg0m5">
<bpmn:outgoing>sequenceFlow_10</bpmn:outgoing>
</bpmn:startEvent>
<bpmn:task id="Activity_1rwjkd0">
<bpmn:task id="Task_with_duplicated_name_with_textAnnotations" name="Duplicated name on purpose">
<bpmn:incoming>sequenceFlow_10</bpmn:incoming>
<bpmn:outgoing>sequenceFlow_11</bpmn:outgoing>
</bpmn:task>
Expand All @@ -79,14 +79,14 @@
<bpmn:outgoing>sequenceFlow_with_same_name_as_sequenceFlow_11</bpmn:outgoing>
<bpmn:messageEventDefinition id="MessageEventDefinition_03dnjxq" />
</bpmn:intermediateThrowEvent>
<bpmn:textAnnotation id="TextAnnotation_13ptcyf">
<bpmn:textAnnotation id="TextAnnotation_2">
<bpmn:text>Duplicated name on purpose</bpmn:text>
</bpmn:textAnnotation>
<bpmn:association id="Association_1ovp59n" sourceRef="sequenceFlow_with_same_name_as_sequenceFlow_11" targetRef="TextAnnotation_13ptcyf" />
<bpmn:association id="Association_1ovp59n" sourceRef="sequenceFlow_with_same_name_as_sequenceFlow_11" targetRef="TextAnnotation_2" />
</bpmn:process>
<bpmndi:BPMNDiagram id="BPMNDiagram_1">
<bpmndi:BPMNPlane id="BPMNPlane_1" bpmnElement="Collaboration_1jke0md">
<bpmndi:BPMNShape id="Participant_0onpt9o_di" bpmnElement="Participant_0onpt9o" isHorizontal="true">
<bpmndi:BPMNShape id="Participant_1_di" bpmnElement="Participant_1" isHorizontal="true">
<dc:Bounds x="119" y="58" width="939" height="450" />
</bpmndi:BPMNShape>
<bpmndi:BPMNShape id="_BPMNShape_StartEvent_2" bpmnElement="StartEvent_1">
Expand All @@ -113,7 +113,7 @@
<dc:Bounds x="520" y="190" width="100" height="80" />
<bpmndi:BPMNLabel />
</bpmndi:BPMNShape>
<bpmndi:BPMNShape id="Task_with_same_name_as_Task_1_di" bpmnElement="Task_with_same_name_as_Task_1">
<bpmndi:BPMNShape id="UserTask_with_same_name_as_Task_1_di" bpmnElement="UserTask_with_same_name_as_Task_1">
<dc:Bounds x="520" y="310" width="100" height="80" />
<bpmndi:BPMNLabel />
</bpmndi:BPMNShape>
Expand Down Expand Up @@ -184,14 +184,15 @@
<di:waypoint x="532" y="390" />
<di:waypoint x="494" y="430" />
</bpmndi:BPMNEdge>
<bpmndi:BPMNShape id="Participant_0zym2fg_di" bpmnElement="Participant_0zym2fg" isHorizontal="true">
<bpmndi:BPMNShape id="Participant_2_di" bpmnElement="Participant_2" isHorizontal="true">
<dc:Bounds x="119" y="540" width="939" height="250" />
</bpmndi:BPMNShape>
<bpmndi:BPMNShape id="Event_1ndg0m5_di" bpmnElement="Event_1ndg0m5">
<dc:Bounds x="172" y="672" width="36" height="36" />
</bpmndi:BPMNShape>
<bpmndi:BPMNShape id="Activity_1rwjkd0_di" bpmnElement="Activity_1rwjkd0">
<bpmndi:BPMNShape id="Task_with_duplicated_name_with_textAnnotations_di" bpmnElement="Task_with_duplicated_name_with_textAnnotations">
<dc:Bounds x="290" y="650" width="100" height="80" />
<bpmndi:BPMNLabel />
</bpmndi:BPMNShape>
<bpmndi:BPMNShape id="Event_0md1mpw_di" bpmnElement="Event_0md1mpw">
<dc:Bounds x="872" y="672" width="36" height="36" />
Expand All @@ -202,7 +203,7 @@
<bpmndi:BPMNShape id="Event_0qpts3g_di" bpmnElement="Event_1fo3lwp">
<dc:Bounds x="682" y="672" width="36" height="36" />
</bpmndi:BPMNShape>
<bpmndi:BPMNShape id="TextAnnotation_13ptcyf_di" bpmnElement="TextAnnotation_13ptcyf">
<bpmndi:BPMNShape id="TextAnnotation_2_di" bpmnElement="TextAnnotation_2">
<dc:Bounds x="780" y="730" width="100" height="55" />
<bpmndi:BPMNLabel />
</bpmndi:BPMNShape>
Expand Down
133 changes: 103 additions & 30 deletions packages/addons/test/spec/bpmn-elements.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -19,43 +19,116 @@ import { BpmnElementsIdentifier, BpmnElementsSearcher, BpmnVisualization } from
import { createNewBpmnVisualizationWithoutContainer } from '../shared/bv-utils';
import { insertBpmnContainerWithoutId } from '../shared/dom-utils';
import { readFileSync } from '../shared/io-utils';
import type { ShapeBpmnSemantic } from 'bpmn-visualization';
import { ShapeBpmnElementKind } from 'bpmn-visualization';

describe('Find element ids by providing names', () => {
describe('Find elements by providing names', () => {
const bpmnVisualization = new BpmnVisualization({ container: insertBpmnContainerWithoutId() });
bpmnVisualization.load(readFileSync('./fixtures/bpmn/search-elements.bpmn'));
const bpmnElementsSearcher = new BpmnElementsSearcher(bpmnVisualization.bpmnElementsRegistry);

const getModelElementName = (bpmnElementId: string): string => bpmnVisualization.bpmnElementsRegistry.getModelElementsByIds(bpmnElementId).map(element => element.name)[0];

test.each([
{ name: 'start event 1', expectedId: 'StartEvent_1' },
{ name: 'gateway 1', expectedId: 'Gateway_1' },
{ name: 'seq flow 10', expectedId: 'sequenceFlow_10' },
{ name: 'message flow 1', expectedId: 'messageFlow_1' },
])('an existing element - $name', ({ name, expectedId }: { name: string; expectedId: string }) => {
expect(bpmnElementsSearcher.getElementIdByName(name)).toBe(expectedId);
});

test('several existing tasks with the same name', () => {
// Verify that several elements have the same names
expect(getModelElementName('Task_1')).toBe('task 1');
expect(getModelElementName('Task_with_same_name_as_Task_1')).toBe('task 1');

// Retrieve the first one
expect(bpmnElementsSearcher.getElementIdByName('task 1')).toBe('Task_1');
const expectElementsHavingTheSameName = (bpmnElementIds: string[], expectedName: string): void => {
for (const bpmnElementId of bpmnElementIds) {
const elementName = bpmnVisualization.bpmnElementsRegistry.getModelElementsByIds(bpmnElementId).map(element => element.name)[0];
expect(elementName).toBe(expectedName);
}
};

describe('Retrieve ids only', () => {
test.each([
{ name: 'start event 1', expectedId: 'StartEvent_1' },
{ name: 'gateway 1', expectedId: 'Gateway_1' },
{ name: 'seq flow 10', expectedId: 'sequenceFlow_10' },
{ name: 'message flow 1', expectedId: 'messageFlow_1' },
])('an existing element - $name', ({ name, expectedId }: { name: string; expectedId: string }) => {
expect(bpmnElementsSearcher.getElementIdByName(name)).toBe(expectedId);
});

test('several existing tasks with the same name', () => {
expectElementsHavingTheSameName(['Task_1', 'UserTask_with_same_name_as_Task_1'], 'task 1 with duplicate name');

// Retrieve the first one
expect(bpmnElementsSearcher.getElementIdByName('task 1 with duplicate name')).toBe('Task_1');
});

test('several existing sequence flows with the same name', () => {
expectElementsHavingTheSameName(['sequenceFlow_11', 'sequenceFlow_with_same_name_as_sequenceFlow_11'], 'seq flow 11');

// Retrieve the first one
expect(bpmnElementsSearcher.getElementIdByName('seq flow 11')).toBe('sequenceFlow_11');
});

test('unknown element', () => {
expect(bpmnElementsSearcher.getElementIdByName('nobody knows me')).toBeUndefined();
});
});

test('several existing sequence flows with the same name', () => {
// Verify that several elements have the same names
expect(getModelElementName('sequenceFlow_11')).toBe('seq flow 11');
expect(getModelElementName('sequenceFlow_with_same_name_as_sequenceFlow_11')).toBe('seq flow 11');

// Retrieve the first one
expect(bpmnElementsSearcher.getElementIdByName('seq flow 11')).toBe('sequenceFlow_11');
});

test('unknown element', () => {
expect(bpmnElementsSearcher.getElementIdByName('nobody knows me')).toBeUndefined();
describe('Retrieve objects', () => {
test('Several existing tasks with the same name with default options', () => {
expectElementsHavingTheSameName(['Task_1', 'UserTask_with_same_name_as_Task_1'], 'task 1 with duplicate name');

// Retrieve the first one
expect(bpmnElementsSearcher.getElementByName('task 1 with duplicate name')).toEqual({
id: 'Task_1',
incomingIds: ['Flow_1yf7yd6'],
isShape: true,
kind: ShapeBpmnElementKind.TASK,
name: 'task 1 with duplicate name',
outgoingIds: ['Flow_0th6cj1'],
parentId: 'Participant_1',
} as ShapeBpmnSemantic);
});

test('Several existing tasks with the same name - deduplicate with kinds', () => {
expectElementsHavingTheSameName(['Task_1', 'UserTask_with_same_name_as_Task_1'], 'task 1 with duplicate name');

expect(bpmnElementsSearcher.getElementByName('task 1 with duplicate name', { kinds: [ShapeBpmnElementKind.TASK_USER] })).toEqual({
id: 'UserTask_with_same_name_as_Task_1',
incomingIds: ['Flow_1a9vtky'],
isShape: true,
kind: ShapeBpmnElementKind.TASK_USER,
name: 'task 1 with duplicate name',
outgoingIds: ['Flow_0i4ule4', 'Association_0fwvz81'],
parentId: 'Participant_1',
} as ShapeBpmnSemantic);
});

test('Several existing tasks with the same name - deduplicate with the filtering function', () => {
expectElementsHavingTheSameName(['Task_1', 'UserTask_with_same_name_as_Task_1'], 'task 1 with duplicate name');

expect(
bpmnElementsSearcher.getElementByName('task 1 with duplicate name', {
filter: bpmnSemantic => bpmnSemantic.isShape && (bpmnSemantic as ShapeBpmnSemantic).outgoingIds.includes('Association_0fwvz81'),
}),
).toEqual({
id: 'UserTask_with_same_name_as_Task_1',
incomingIds: ['Flow_1a9vtky'],
isShape: true,
kind: ShapeBpmnElementKind.TASK_USER,
name: 'task 1 with duplicate name',
outgoingIds: ['Flow_0i4ule4', 'Association_0fwvz81'],
parentId: 'Participant_1',
} as ShapeBpmnSemantic);
});

test('Several existing tasks with the same name - deduplicate with both kinds and the filtering function', () => {
expectElementsHavingTheSameName(['TextAnnotation_1', 'TextAnnotation_2', 'Task_with_duplicated_name_with_textAnnotations'], 'Duplicated name on purpose');

expect(
bpmnElementsSearcher.getElementByName('Duplicated name on purpose', {
kinds: [ShapeBpmnElementKind.TEXT_ANNOTATION],
filter: bpmnSemantic => bpmnSemantic.isShape && (bpmnSemantic as ShapeBpmnSemantic).parentId == 'Participant_2',
}),
).toEqual({
id: 'TextAnnotation_2',
incomingIds: ['Association_1ovp59n'],
isShape: true,
kind: ShapeBpmnElementKind.TEXT_ANNOTATION,
name: 'Duplicated name on purpose',
outgoingIds: [],
parentId: 'Participant_2',
} as ShapeBpmnSemantic);
});
});
});

Expand Down