Examples with ExecutionVariableSnapshotObserver org.camunda.bpm.engine.impl.persistence.entity.ExecutionVariableSnapshotObserver used on opensource projects

Example 1 with ExecutionVariableSnapshotObserver

use of org.camunda.bpm.engine.impl.persistence.entity.ExecutionVariableSnapshotObserver in project camunda-bpm-platform by camunda.

the class StartProcessInstanceCmd method execute.

public ProcessInstanceWithVariables execute(CommandContext commandContext) {
    ProcessDefinitionEntity processDefinition = new GetDeployedProcessDefinitionCmd(instantiationBuilder, false).execute(commandContext);
    for (CommandChecker checker : commandContext.getProcessEngineConfiguration().getCommandCheckers()) {
        checker.checkCreateProcessInstance(processDefinition);
    }
    // Start the process instance
    ExecutionEntity processInstance = processDefinition.createProcessInstance(instantiationBuilder.getBusinessKey(), instantiationBuilder.getCaseInstanceId());
    if (instantiationBuilder.getTenantId() != null) {
        processInstance.setTenantId(instantiationBuilder.getTenantId());
    }
    final ExecutionVariableSnapshotObserver variablesListener = new ExecutionVariableSnapshotObserver(processInstance);
    processInstance.start(instantiationBuilder.getVariables());
    return new ProcessInstanceWithVariablesImpl(processInstance, variablesListener.getVariables());
}

Example 2 with ExecutionVariableSnapshotObserver

use of org.camunda.bpm.engine.impl.persistence.entity.ExecutionVariableSnapshotObserver in project camunda-bpm-platform by camunda.

the class StartProcessInstanceAtActivitiesCmd method execute.

public ProcessInstanceWithVariables execute(CommandContext commandContext) {
    ProcessDefinitionEntity processDefinition = new GetDeployedProcessDefinitionCmd(instantiationBuilder, false).execute(commandContext);
    for (CommandChecker checker : commandContext.getProcessEngineConfiguration().getCommandCheckers()) {
        checker.checkCreateProcessInstance(processDefinition);
    }
    ProcessInstanceModificationBuilderImpl modificationBuilder = instantiationBuilder.getModificationBuilder();
    ensureNotEmpty("At least one instantiation instruction required (e.g. by invoking startBefore(..), startAfter(..) or startTransition(..))", "instructions", modificationBuilder.getModificationOperations());
    // instantiate the process
    ActivityImpl initialActivity = determineFirstActivity(processDefinition, modificationBuilder);
    ExecutionEntity processInstance = processDefinition.createProcessInstance(instantiationBuilder.getBusinessKey(), instantiationBuilder.getCaseInstanceId(), initialActivity);
    if (instantiationBuilder.getTenantId() != null) {
        processInstance.setTenantId(instantiationBuilder.getTenantId());
    }
    processInstance.setSkipCustomListeners(modificationBuilder.isSkipCustomListeners());
    VariableMap variables = modificationBuilder.getProcessVariables();
    final ExecutionVariableSnapshotObserver variablesListener = new ExecutionVariableSnapshotObserver(processInstance);
    processInstance.startWithoutExecuting(variables);
    // prevent ending of the process instance between instructions
    processInstance.setPreserveScope(true);
    // apply modifications
    List<AbstractProcessInstanceModificationCommand> instructions = modificationBuilder.getModificationOperations();
    for (int i = 0; i < instructions.size(); i++) {
        AbstractProcessInstanceModificationCommand instruction = instructions.get(i);
        LOG.debugStartingInstruction(processInstance.getId(), i, instruction.describe());
        instruction.setProcessInstanceId(processInstance.getId());
        instruction.setSkipCustomListeners(modificationBuilder.isSkipCustomListeners());
        instruction.setSkipIoMappings(modificationBuilder.isSkipIoMappings());
        instruction.execute(commandContext);
    }
    if (!processInstance.hasChildren() && processInstance.isEnded()) {
        // process instance has ended regularly but this has not been propagated yet
        // due to preserveScope setting
        processInstance.propagateEnd();
    }
    return new ProcessInstanceWithVariablesImpl(processInstance, variablesListener.getVariables());
}