/* 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.
*/
package org.activiti.editor.language.json.converter;
import java.util.Map;
import org.activiti.bpmn.model.Activity;
import org.activiti.bpmn.model.BaseElement;
import org.activiti.bpmn.model.BpmnModel;
import org.activiti.bpmn.model.ExclusiveGateway;
import org.activiti.bpmn.model.ExtensionElement;
import org.activiti.bpmn.model.FlowElement;
import org.activiti.bpmn.model.FlowElementsContainer;
import org.activiti.bpmn.model.GraphicInfo;
import org.activiti.bpmn.model.SequenceFlow;
import org.apache.commons.lang3.StringUtils;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
/**
* @author Tijs Rademakers
*/
public class SequenceFlowJsonConverter extends BaseBpmnJsonConverter {
public static void fillTypes(Map<String, Class<? extends BaseBpmnJsonConverter>> convertersToBpmnMap,
Map<Class<? extends BaseElement>, Class<? extends BaseBpmnJsonConverter>> convertersToJsonMap) {
fillJsonTypes(convertersToBpmnMap);
fillBpmnTypes(convertersToJsonMap);
}
public static void fillJsonTypes(Map<String, Class<? extends BaseBpmnJsonConverter>> convertersToBpmnMap) {
convertersToBpmnMap.put(STENCIL_SEQUENCE_FLOW, SequenceFlowJsonConverter.class);
}
public static void fillBpmnTypes(Map<Class<? extends BaseElement>, Class<? extends BaseBpmnJsonConverter>> convertersToJsonMap) {
convertersToJsonMap.put(SequenceFlow.class, SequenceFlowJsonConverter.class);
}
@Override
protected String getStencilId(BaseElement baseElement) {
return STENCIL_SEQUENCE_FLOW;
}
@Override
public void convertToJson(BaseElement baseElement, ActivityProcessor processor,
BpmnModel model, FlowElementsContainer container, ArrayNode shapesArrayNode, double subProcessX, double subProcessY) {
SequenceFlow sequenceFlow = (SequenceFlow) baseElement;
ObjectNode flowNode = BpmnJsonConverterUtil.createChildShape(sequenceFlow.getId(), STENCIL_SEQUENCE_FLOW, 172, 212, 128, 212);
ArrayNode dockersArrayNode = objectMapper.createArrayNode();
ObjectNode dockNode = objectMapper.createObjectNode();
dockNode.put(EDITOR_BOUNDS_X, model.getGraphicInfo(sequenceFlow.getSourceRef()).getWidth() / 2.0);
dockNode.put(EDITOR_BOUNDS_Y, model.getGraphicInfo(sequenceFlow.getSourceRef()).getHeight() / 2.0);
dockersArrayNode.add(dockNode);
if (model.getFlowLocationGraphicInfo(sequenceFlow.getId()).size() > 2) {
for (int i = 1; i < model.getFlowLocationGraphicInfo(sequenceFlow.getId()).size() - 1; i++) {
GraphicInfo graphicInfo = model.getFlowLocationGraphicInfo(sequenceFlow.getId()).get(i);
dockNode = objectMapper.createObjectNode();
dockNode.put(EDITOR_BOUNDS_X, graphicInfo.getX());
dockNode.put(EDITOR_BOUNDS_Y, graphicInfo.getY());
dockersArrayNode.add(dockNode);
}
}
dockNode = objectMapper.createObjectNode();
dockNode.put(EDITOR_BOUNDS_X, model.getGraphicInfo(sequenceFlow.getTargetRef()).getWidth() / 2.0);
dockNode.put(EDITOR_BOUNDS_Y, model.getGraphicInfo(sequenceFlow.getTargetRef()).getHeight() / 2.0);
dockersArrayNode.add(dockNode);
flowNode.put("dockers", dockersArrayNode);
ArrayNode outgoingArrayNode = objectMapper.createArrayNode();
outgoingArrayNode.add(BpmnJsonConverterUtil.createResourceNode(sequenceFlow.getTargetRef()));
flowNode.put("outgoing", outgoingArrayNode);
flowNode.put("target", BpmnJsonConverterUtil.createResourceNode(sequenceFlow.getTargetRef()));
ObjectNode propertiesNode = objectMapper.createObjectNode();
propertiesNode.put(PROPERTY_OVERRIDE_ID, sequenceFlow.getId());
if (StringUtils.isNotEmpty(sequenceFlow.getName())) {
propertiesNode.put(PROPERTY_NAME, sequenceFlow.getName());
}
if (StringUtils.isNotEmpty(sequenceFlow.getDocumentation())) {
propertiesNode.put(PROPERTY_DOCUMENTATION, sequenceFlow.getDocumentation());
}
if (StringUtils.isNotEmpty(sequenceFlow.getConditionExpression())) {
propertiesNode.put(PROPERTY_SEQUENCEFLOW_CONDITION, sequenceFlow.getConditionExpression());
}
if (StringUtils.isNotEmpty(sequenceFlow.getSourceRef())) {
FlowElement sourceFlowElement = container.getFlowElement(sequenceFlow.getSourceRef());
if (sourceFlowElement != null) {
String defaultFlowId = null;
if (sourceFlowElement instanceof ExclusiveGateway) {
ExclusiveGateway parentExclusiveGateway = (ExclusiveGateway) sourceFlowElement;
defaultFlowId = parentExclusiveGateway.getDefaultFlow();
} else if (sourceFlowElement instanceof Activity) {
Activity parentActivity = (Activity) sourceFlowElement;
defaultFlowId = parentActivity.getDefaultFlow();
}
if (defaultFlowId != null && defaultFlowId.equals(sequenceFlow.getId())) {
propertiesNode.put(PROPERTY_SEQUENCEFLOW_DEFAULT, true);
}
}
}
if (sequenceFlow.getExecutionListeners().size() > 0) {
BpmnJsonConverterUtil.convertListenersToJson(sequenceFlow.getExecutionListeners(), true, propertiesNode);
}
flowNode.put(EDITOR_SHAPE_PROPERTIES, propertiesNode);
shapesArrayNode.add(flowNode);
}
@Override
protected void convertElementToJson(ObjectNode propertiesNode, BaseElement baseElement) {
// nothing to do
}
@Override
protected FlowElement convertJsonToElement(JsonNode elementNode, JsonNode modelNode, Map<String, JsonNode> shapeMap) {
SequenceFlow flow = new SequenceFlow();
String sourceRef = BpmnJsonConverterUtil.lookForSourceRef(elementNode.get(EDITOR_SHAPE_ID).asText(), modelNode.get(EDITOR_CHILD_SHAPES));
if (sourceRef != null) {
flow.setSourceRef(sourceRef);
JsonNode targetNode = elementNode.get("target");
if (targetNode != null && targetNode.isNull() == false) {
String targetId = targetNode.get(EDITOR_SHAPE_ID).asText();
if (shapeMap.get(targetId) != null) {
flow.setTargetRef(BpmnJsonConverterUtil.getElementId(shapeMap.get(targetId)));
}
}
}
JsonNode conditionNode = getProperty(PROPERTY_SEQUENCEFLOW_CONDITION, elementNode);
if (conditionNode != null) {
if (conditionNode.isTextual() && conditionNode.isNull() == false) {
flow.setConditionExpression(conditionNode.asText());
} else if (conditionNode.get("expression") != null) {
JsonNode expressionNode = conditionNode.get("expression");
if (expressionNode.get("type") != null) {
String expressionType = expressionNode.get("type").asText();
if ("variables".equalsIgnoreCase(expressionType) && expressionNode.get("fieldType") != null) {
String fieldType = expressionNode.get("fieldType").asText();
if ("field".equalsIgnoreCase(fieldType)) {
setFieldConditionExpression(flow, expressionNode);
} else if ("outcome".equalsIgnoreCase(fieldType)) {
setOutcomeConditionExpression(flow, expressionNode);
}
} else if (expressionNode.get("staticValue") != null && expressionNode.get("staticValue").isNull() == false) {
flow.setConditionExpression(expressionNode.get("staticValue").asText());
}
}
}
}
return flow;
}
protected void setFieldConditionExpression(SequenceFlow flow, JsonNode expressionNode) {
String fieldId = null;
if (expressionNode.get("fieldId") != null && expressionNode.get("fieldId").isNull() == false) {
fieldId = expressionNode.get("fieldId").asText();
}
String operator = null;
if (expressionNode.get("operator") != null && expressionNode.get("operator").isNull() == false) {
operator = expressionNode.get("operator").asText();
}
String value = null;
if (expressionNode.get("value") != null && expressionNode.get("value").isNull() == false) {
value = expressionNode.get("value").asText();
}
if (fieldId != null && operator != null && value != null) {
flow.setConditionExpression("${" + fieldId + " " + operator + " " + value + "}");
addExtensionElement("conditionFieldId", fieldId, flow);
addExtensionElement("conditionOperator", operator, flow);
addExtensionElement("conditionValue", value, flow);
}
}
protected void setOutcomeConditionExpression(SequenceFlow flow, JsonNode expressionNode) {
Long formId = null;
if (expressionNode.get("outcomeFormId") != null && expressionNode.get("outcomeFormId").isNull() == false) {
formId = expressionNode.get("outcomeFormId").asLong();
}
String operator = null;
if (expressionNode.get("operator") != null && expressionNode.get("operator").isNull() == false) {
operator = expressionNode.get("operator").asText();
}
String outcomeName = null;
if (expressionNode.get("outcomeName") != null && expressionNode.get("outcomeName").isNull() == false) {
outcomeName = expressionNode.get("outcomeName").asText();
}
if (formId != null && operator != null && outcomeName != null) {
flow.setConditionExpression("${form" + formId + "outcome " + operator + " " + outcomeName + "}");
addExtensionElement("conditionFormId", String.valueOf(formId), flow);
addExtensionElement("conditionOperator", operator, flow);
addExtensionElement("conditionOutcomeName", outcomeName, flow);
}
}
protected void addExtensionElement(String name, String value, SequenceFlow flow) {
ExtensionElement extensionElement = new ExtensionElement();
extensionElement.setNamespace(NAMESPACE);
extensionElement.setNamespacePrefix("modeler");
extensionElement.setName(name);
extensionElement.setElementText(value);
flow.addExtensionElement(extensionElement);
}
}