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Issue imixs#183
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...glsp-server/src/main/java/org/openbpmn/extension/ConditionalEventDefinitionExtension.java
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| /******************************************************************************** | ||
| * Copyright (c) 2022 Imixs Software Solutions GmbH and others. | ||
| * | ||
| * This program and the accompanying materials are made available under the | ||
| * terms of the Eclipse Public License v. 2.0 which is available at | ||
| * http://www.eclipse.org/legal/epl-2.0. | ||
| * | ||
| * This Source Code may also be made available under the following Secondary | ||
| * Licenses when the conditions for such availability set forth in the Eclipse | ||
| * Public License v. 2.0 are satisfied: GNU General Public License, version 2 | ||
| * with the GNU Classpath Exception which is available at | ||
| * https://www.gnu.org/software/classpath/license.html. | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 | ||
| ********************************************************************************/ | ||
| package org.openbpmn.extension; | ||
|
|
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| import java.util.Iterator; | ||
| import java.util.Set; | ||
|
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| import javax.json.Json; | ||
| import javax.json.JsonArray; | ||
| import javax.json.JsonArrayBuilder; | ||
| import javax.json.JsonObject; | ||
| import javax.json.JsonObjectBuilder; | ||
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|
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| import org.apache.logging.log4j.LogManager; | ||
| import org.apache.logging.log4j.Logger; | ||
| import org.eclipse.glsp.graph.GModelElement; | ||
| import org.openbpmn.bpmn.BPMNTypes; | ||
| import org.openbpmn.bpmn.elements.Event; | ||
| import org.openbpmn.bpmn.elements.core.BPMNElement; | ||
| import org.openbpmn.glsp.jsonforms.DataBuilder; | ||
| import org.openbpmn.glsp.jsonforms.SchemaBuilder; | ||
| import org.openbpmn.glsp.jsonforms.UISchemaBuilder; | ||
| import org.openbpmn.glsp.jsonforms.UISchemaBuilder.Layout; | ||
| import org.w3c.dom.Element; | ||
|
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| /** | ||
| * The TimerEventDefinitionExtension is responsible to read and update optional | ||
| * TimerEventDefinitions from the BPMN model. The Extension builds a custom | ||
| * property section named 'Timers' shown a list of all TimerEventDefinitions | ||
| * define in a Event. | ||
| * | ||
| * @author rsoika | ||
| */ | ||
| public class ConditionalEventDefinitionExtension extends DefaultBPMNEventExtension { | ||
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| private static Logger logger = LogManager.getLogger(DefaultBPMNSequenceFlowExtension.class); | ||
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| @Override | ||
| public int getPriority() { | ||
| return 101; | ||
| } | ||
|
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| /** | ||
| * Returns if this Extension can be applied to the given elementTypeID | ||
| */ | ||
| @Override | ||
| public boolean handlesElementTypeId(final String elementTypeId) { | ||
| return BPMNTypes.BPMN_EVENTS.contains(elementTypeId); | ||
| } | ||
|
|
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| /** | ||
| * This Helper Method generates a JSON Object with the BPMNElement properties. | ||
| * <p> | ||
| * This json object is used on the GLSP Client to generate the EMF JsonForms | ||
| */ | ||
| @Override | ||
| public void buildPropertiesForm(final BPMNElement bpmnElement, final DataBuilder dataBuilder, | ||
| final SchemaBuilder schemaBuilder, final UISchemaBuilder uiSchemaBuilder) { | ||
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| Event event = (Event) bpmnElement; | ||
|
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| // Conditional | ||
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| Set<Element> conditionalEventDefinition = event.getEventDefinitionsByType("conditionalEventDefinition"); | ||
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| if (conditionalEventDefinition.size() > 0) { | ||
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| JsonObject multilineOption = Json.createObjectBuilder() // | ||
| .add("multi", true).build(); | ||
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| uiSchemaBuilder. // | ||
| addCategory("Conditions"). // | ||
| addLayout(Layout.VERTICAL); | ||
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| // create a detail control Layout.... | ||
| JsonArrayBuilder controlsArrayBuilder = Json.createArrayBuilder(); | ||
| controlsArrayBuilder // | ||
| .add(Json.createObjectBuilder() // | ||
| .add("type", "Control") // | ||
| .add("scope", "#/properties/language"))// | ||
| .add(Json.createObjectBuilder() // | ||
| .add("type", "Control") // | ||
| .add("scope", "#/properties/expression") // | ||
| .add("label", "Expression") // | ||
| .add("options", multilineOption) // | ||
| ); | ||
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| JsonObjectBuilder detailLayoutBuilder = Json.createObjectBuilder(). // | ||
| add("type", "VerticalLayout"). /// | ||
| add("elements", controlsArrayBuilder); | ||
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| JsonObjectBuilder detailBuilder = Json.createObjectBuilder(). // | ||
| add("detail", detailLayoutBuilder.build()); | ||
| uiSchemaBuilder.addDetailLayout("conditions", "Conditions", detailBuilder.build()); | ||
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| /* | ||
| * Add the Schema .... | ||
| */ | ||
| schemaBuilder.addArray("conditions"); | ||
| schemaBuilder.addProperty("language", "string", null, null); | ||
| schemaBuilder.addProperty("expression", "string", null, null); | ||
|
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| /* | ||
| * Now we can create the data structure - each conditionalEventDefinition is | ||
| * represented as a separate object | ||
| */ | ||
| dataBuilder.addArray("conditions"); | ||
| for (Element definition : conditionalEventDefinition) { | ||
| dataBuilder.addObject(); | ||
| dataBuilder.addData("language", definition.getAttribute("language")); | ||
| dataBuilder.addData("expression", definition.getAttribute("expression")); | ||
| } | ||
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| } | ||
| } | ||
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| /** | ||
| * Update the timers definitions | ||
| * | ||
| * This method updates all timerEventDefinitions. The method expects a | ||
| * dataList containing all timer definitions with its values. | ||
| * The method simply overwrites all timerEventDefinitions. | ||
| * <p> | ||
| * Example: | ||
| * | ||
| * <pre> | ||
| * {@code | ||
| * <bpmn2:startEvent id="event_n8bj0g" name="Event-1"> | ||
| * <bpmn2:documentation id="documentation_4XhEKA"/> | ||
| * <bpmn2:timerEventDefinition id="timerEventDefinition_hElKhw"> | ||
| * <bpmn2:timeDuration id="FormalExpression_0" xsi:type= | ||
| "bpmn2:tFormalExpression">3cc</bpmn2:timeDuration> | ||
| * </bpmn2:timerEventDefinition> | ||
| * </bpmn2:startEvent> | ||
| * } | ||
| * </pre> | ||
| */ | ||
| @Override | ||
| public void updatePropertiesData(final JsonObject json, final BPMNElement bpmnElement, | ||
| final GModelElement gNodeElement) { | ||
| Event bpmnEvent = (Event) bpmnElement; | ||
| JsonArray dataList = json.getJsonArray("conditions"); | ||
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| // synchronize the definition list of the event element | ||
| Set<Element> conditionalEventDefinitions = synchronizeEventDefinitions("conditionalEventDefinition", bpmnEvent, | ||
| dataList); | ||
|
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| // now we can update the values one by one | ||
| // NOTE: the id can change within the definitionList if an element was deleted | ||
| // or moved! | ||
| // but we do not care about this issue. | ||
| Iterator<Element> iter = conditionalEventDefinitions.iterator(); | ||
| int i = 0; | ||
| while (iter.hasNext()) { | ||
| Element eventDefinitionElement = iter.next(); | ||
| JsonObject jsonData = dataList.getJsonObject(i); // .get(i); | ||
| if (jsonData != null) { | ||
| eventDefinitionElement.setAttribute("language", jsonData.getString("language", "")); | ||
| eventDefinitionElement.setAttribute("expression", jsonData.getString("expression", "")); | ||
| } | ||
| i++; | ||
| // update completed | ||
| } | ||
|
|
||
| } | ||
| } |
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