org.activiti.engine.impl.agenda.ExecuteInactiveBehaviorsOperation Maven / Gradle / Ivy
package org.activiti.engine.impl.agenda;
import org.activiti.bpmn.model.FlowNode;
import org.activiti.bpmn.model.Process;
import org.activiti.engine.impl.delegate.InactiveActivityBehavior;
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.util.ProcessDefinitionUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.ArrayList;
import java.util.Collection;
/**
* Operation that usually gets scheduled as last operation of handling a {@link Command}.
*
* Executes 'background' behaviours of executions that currently are in an activity that implements
* the {@link InactiveActivityBehavior} interface.
*
*/
public class ExecuteInactiveBehaviorsOperation extends AbstractOperation {
private static final Logger logger = LoggerFactory.getLogger(ExecuteInactiveBehaviorsOperation.class);
protected Collection involvedExecutions;
public ExecuteInactiveBehaviorsOperation(CommandContext commandContext) {
super(commandContext, null);
this.involvedExecutions = commandContext.getInvolvedExecutions();
}
@Override
public void run() {
/*
* Algorithm: for each execution that is involved in this command context,
*
* 1) Get its process definition
* 2) Verify if its process definitions has any InactiveActivityBehavior behaviours.
* 3) If so, verify if there are any executions inactive in those activities
* 4) Execute the inactivated behavior
*
*/
for (ExecutionEntity executionEntity : involvedExecutions) {
Process process = ProcessDefinitionUtil.getProcess(executionEntity.getProcessDefinitionId());
Collection flowNodeIdsWithInactivatedBehavior = new ArrayList();
for (FlowNode flowNode : process.findFlowElementsOfType(FlowNode.class)) {
if (flowNode.getBehavior() instanceof InactiveActivityBehavior) {
flowNodeIdsWithInactivatedBehavior.add(flowNode.getId());
}
}
if (flowNodeIdsWithInactivatedBehavior.size() > 0) {
Collection inactiveExecutions = commandContext.getExecutionEntityManager().findInactiveExecutionsByProcessInstanceId(executionEntity.getProcessInstanceId());
for (ExecutionEntity inactiveExecution : inactiveExecutions) {
if (!inactiveExecution.isActive()
&& flowNodeIdsWithInactivatedBehavior.contains(inactiveExecution.getActivityId())
&& !inactiveExecution.isDeleted()) {
FlowNode flowNode = (FlowNode) process.getFlowElement(inactiveExecution.getActivityId(), true);
InactiveActivityBehavior inactiveActivityBehavior = ((InactiveActivityBehavior) flowNode.getBehavior());
logger.debug("Found InactiveActivityBehavior instance of class {} that can be executed on activity '{}'", inactiveActivityBehavior.getClass(), flowNode.getId());
inactiveActivityBehavior.executeInactive(inactiveExecution);
}
}
}
}
}
}