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/**
* Copyright (C) 2019 Bonitasoft S.A.
* Bonitasoft, 32 rue Gustave Eiffel - 38000 Grenoble
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation
* version 2.1 of the License.
* This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
* Floor, Boston, MA 02110-1301, USA.
**/
package org.bonitasoft.engine.execution.state;
import static org.bonitasoft.engine.core.process.instance.model.SStateCategory.ABORTING;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.bonitasoft.engine.commons.exceptions.SBonitaException;
import org.bonitasoft.engine.core.expression.control.api.ExpressionResolverService;
import org.bonitasoft.engine.core.expression.control.model.SExpressionContext;
import org.bonitasoft.engine.core.process.definition.model.SActivityDefinition;
import org.bonitasoft.engine.core.process.definition.model.SFlowElementContainerDefinition;
import org.bonitasoft.engine.core.process.definition.model.SMultiInstanceLoopCharacteristics;
import org.bonitasoft.engine.core.process.definition.model.SProcessDefinition;
import org.bonitasoft.engine.core.process.instance.api.ActivityInstanceService;
import org.bonitasoft.engine.core.process.instance.api.exceptions.SActivityExecutionException;
import org.bonitasoft.engine.core.process.instance.api.exceptions.SActivityStateExecutionException;
import org.bonitasoft.engine.core.process.instance.api.states.FlowNodeState;
import org.bonitasoft.engine.core.process.instance.api.states.StateCode;
import org.bonitasoft.engine.core.process.instance.model.SFlowNodeInstance;
import org.bonitasoft.engine.core.process.instance.model.SMultiInstanceActivityInstance;
import org.bonitasoft.engine.core.process.instance.model.SStateCategory;
import org.bonitasoft.engine.data.instance.api.DataInstanceContainer;
import org.bonitasoft.engine.execution.ContainerRegistry;
import org.bonitasoft.engine.execution.StateBehaviors;
import org.bonitasoft.engine.expression.ExpressionConstants;
import org.bonitasoft.engine.expression.model.SExpression;
import org.springframework.stereotype.Component;
@Component
public class ExecutingMultiInstanceActivityState implements FlowNodeState {
private final ExpressionResolverService expressionResolverService;
private final ContainerRegistry containerRegistry;
private final ActivityInstanceService activityInstanceService;
private final StateBehaviors stateBehaviors;
public ExecutingMultiInstanceActivityState(final ExpressionResolverService expressionResolverService,
final ContainerRegistry containerRegistry,
final ActivityInstanceService activityInstanceService, final StateBehaviors stateBehaviors) {
this.expressionResolverService = expressionResolverService;
this.containerRegistry = containerRegistry;
this.activityInstanceService = activityInstanceService;
this.stateBehaviors = stateBehaviors;
}
@Override
public int getId() {
return 28;
}
@Override
public boolean isStable() {
return true;
}
@Override
public boolean isTerminal() {
return false;
}
@Override
public String getName() {
return "executing";
}
@Override
public boolean notifyChildFlowNodeHasFinished(final SProcessDefinition processDefinition,
final SFlowNodeInstance parentInstance,
final SFlowNodeInstance childInstance)
throws SActivityStateExecutionException {
final SFlowElementContainerDefinition processContainer = processDefinition.getProcessContainer();
final SActivityDefinition activityDefinition = (SActivityDefinition) processContainer
.getFlowNode(parentInstance.getFlowNodeDefinitionId());
final SMultiInstanceLoopCharacteristics loopCharacteristics = (SMultiInstanceLoopCharacteristics) activityDefinition
.getLoopCharacteristics();
try {
if (parentInstance.getStateCategory() != SStateCategory.NORMAL) {
// if is not a normal state (aborting / canceling), return true to change state from executing to aborting / cancelling (ChildReachstate),
// without create a new child task
return true;
}
final SMultiInstanceActivityInstance parentMultiInstance = (SMultiInstanceActivityInstance) parentInstance;
if (childInstance.isAborting() || childInstance.isCanceling()) {
// TODO add synchronization
activityInstanceService.addMultiInstanceNumberOfTerminatedActivities(parentMultiInstance, 1);
} else {
// TODO add synchronization
activityInstanceService.addMultiInstanceNumberOfCompletedActivities(parentMultiInstance, 1);
// check the completionCondition
final SExpression completionCondition = loopCharacteristics.getCompletionCondition();
final Map input = new HashMap<>(1);
input.put(ExpressionConstants.NUMBER_OF_ACTIVE_INSTANCES.getEngineConstantName(),
parentMultiInstance.getNumberOfActiveInstances());
input.put(ExpressionConstants.NUMBER_OF_TERMINATED_INSTANCES.getEngineConstantName(),
parentMultiInstance.getNumberOfTerminatedInstances());
input.put(ExpressionConstants.NUMBER_OF_COMPLETED_INSTANCES.getEngineConstantName(),
parentMultiInstance.getNumberOfCompletedInstances());
final int numberOfInstances = parentMultiInstance.getNumberOfInstances();
input.put(ExpressionConstants.NUMBER_OF_INSTANCES.getEngineConstantName(), numberOfInstances);
final SExpressionContext sExpressionContext = new SExpressionContext(parentMultiInstance.getId(),
DataInstanceContainer.ACTIVITY_INSTANCE.name(),
processDefinition.getId(), input);
sExpressionContext.setProcessDefinitionId(parentMultiInstance.getProcessDefinitionId());
if (completionCondition != null) {
final boolean complete = (Boolean) expressionResolverService.evaluate(completionCondition,
sExpressionContext);
if (complete) {
stateBehaviors.interruptSubActivities(parentMultiInstance, ABORTING);
if (parentMultiInstance.isSequential()) {
return true;
}
}
}
}
final int numberOfActiveInstances = parentMultiInstance.getNumberOfActiveInstances();
final int numberOfCompletedInstances = parentMultiInstance.getNumberOfCompletedInstances();
final int numberOfTerminatedInstances = parentMultiInstance.getNumberOfTerminatedInstances();
final int numberOfInstances = parentMultiInstance.getNumberOfInstances();
if (parentMultiInstance.isSequential()) {
// only instantiate when we are in sequence
List createInnerInstances = null;
if (stateBehaviors.shouldCreateANewInstance(loopCharacteristics, numberOfInstances,
parentMultiInstance)) {
createInnerInstances = stateBehaviors.createInnerInstances(processDefinition.getId(),
activityDefinition, parentMultiInstance, 1);
for (final SFlowNodeInstance sFlowNodeInstance : createInnerInstances) {
containerRegistry.executeFlowNode(sFlowNodeInstance);
}
}
return numberOfActiveInstances == 0
&& (createInnerInstances == null || createInnerInstances.size() == 0);
}
return numberOfActiveInstances == 0
|| numberOfInstances == numberOfCompletedInstances + numberOfTerminatedInstances;
} catch (final SBonitaException e) {
throw new SActivityStateExecutionException(e);
}
}
@Override
public boolean shouldExecuteState(final SProcessDefinition processDefinition,
final SFlowNodeInstance flowNodeInstance) throws SActivityExecutionException {
final int numberOfActiveInstances = ((SMultiInstanceActivityInstance) flowNodeInstance)
.getNumberOfActiveInstances();
if (numberOfActiveInstances > 0) {
stateBehaviors.executeChildrenActivities(flowNodeInstance);
}
return numberOfActiveInstances > 0;
}
@Override
public final StateCode execute(final SProcessDefinition processDefinition,
final SFlowNodeInstance flowNodeInstance) {
return StateCode.DONE;
}
@Override
public SStateCategory getStateCategory() {
return SStateCategory.NORMAL;
}
@Override
public boolean mustAddSystemComment(final SFlowNodeInstance flowNodeInstance) {
return false;
}
@Override
public String getSystemComment(final SFlowNodeInstance flowNodeInstance) {
return "";
}
}
