org.activiti.engine.impl.cmd.GetTaskDataObjectsCmd Maven / Gradle / Ivy
/* 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.engine.impl.cmd;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import org.activiti.bpmn.model.BpmnModel;
import org.activiti.bpmn.model.SubProcess;
import org.activiti.bpmn.model.ValuedDataObject;
import org.activiti.engine.ActivitiIllegalArgumentException;
import org.activiti.engine.ActivitiObjectNotFoundException;
import org.activiti.engine.DynamicBpmnConstants;
import org.activiti.engine.impl.DataObjectImpl;
import org.activiti.engine.impl.context.Context;
import org.activiti.engine.impl.interceptor.Command;
import org.activiti.engine.impl.interceptor.CommandContext;
import org.activiti.engine.impl.persistence.entity.ExecutionEntity;
import org.activiti.engine.impl.persistence.entity.TaskEntity;
import org.activiti.engine.impl.persistence.entity.VariableInstance;
import org.activiti.engine.impl.util.ProcessDefinitionUtil;
import org.activiti.engine.runtime.DataObject;
import org.activiti.engine.task.Task;
import java.io.Serializable;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
public class GetTaskDataObjectsCmd implements Command>,
Serializable {
private static final long serialVersionUID = 1L;
protected String taskId;
protected Collection variableNames;
protected String locale;
protected boolean withLocalizationFallback;
public GetTaskDataObjectsCmd(String taskId,
Collection variableNames) {
this.taskId = taskId;
this.variableNames = variableNames;
}
public GetTaskDataObjectsCmd(String taskId,
Collection variableNames,
String locale,
boolean withLocalizationFallback) {
this.taskId = taskId;
this.variableNames = variableNames;
this.locale = locale;
this.withLocalizationFallback = withLocalizationFallback;
}
public Map execute(CommandContext commandContext) {
if (taskId == null) {
throw new ActivitiIllegalArgumentException("taskId is null");
}
TaskEntity task = commandContext.getTaskEntityManager().findById(taskId);
if (task == null) {
throw new ActivitiObjectNotFoundException("task " + taskId + " doesn't exist",
Task.class);
}
Map dataObjects = null;
Map variables = null;
if (variableNames == null) {
variables = task.getVariableInstances();
} else {
variables = task.getVariableInstances(variableNames,
false);
}
if (variables != null) {
dataObjects = new HashMap<>(variables.size());
for (Entry entry : variables.entrySet()) {
VariableInstance variableEntity = entry.getValue();
String localizedName = null;
String localizedDescription = null;
ExecutionEntity executionEntity = commandContext.getExecutionEntityManager().findById(variableEntity.getExecutionId());
while (!executionEntity.isScope()) {
executionEntity = executionEntity.getParent();
}
BpmnModel bpmnModel = ProcessDefinitionUtil.getBpmnModel(executionEntity.getProcessDefinitionId());
ValuedDataObject foundDataObject = null;
if (executionEntity.getParentId() == null) {
for (ValuedDataObject dataObject : bpmnModel.getMainProcess().getDataObjects()) {
if (dataObject.getName().equals(variableEntity.getName())) {
foundDataObject = dataObject;
break;
}
}
} else {
SubProcess subProcess = (SubProcess) bpmnModel.getFlowElement(executionEntity.getActivityId());
for (ValuedDataObject dataObject : subProcess.getDataObjects()) {
if (dataObject.getName().equals(variableEntity.getName())) {
foundDataObject = dataObject;
break;
}
}
}
if (locale != null && foundDataObject != null) {
ObjectNode languageNode = Context.getLocalizationElementProperties(locale,
foundDataObject.getId(),
task.getProcessDefinitionId(),
withLocalizationFallback);
if (languageNode != null) {
JsonNode nameNode = languageNode.get(DynamicBpmnConstants.LOCALIZATION_NAME);
if (nameNode != null) {
localizedName = nameNode.asText();
}
JsonNode descriptionNode = languageNode.get(DynamicBpmnConstants.LOCALIZATION_DESCRIPTION);
if (descriptionNode != null) {
localizedDescription = descriptionNode.asText();
}
}
}
if (foundDataObject != null) {
dataObjects.put(variableEntity.getName(),
new DataObjectImpl(variableEntity.getName(),
variableEntity.getValue(),
foundDataObject.getDocumentation(),
foundDataObject.getType(),
localizedName,
localizedDescription,
foundDataObject.getId()));
}
}
}
return dataObjects;
}
}