org.camunda.bpm.engine.impl.migration.validation.instance.VariableConflictActivityInstanceValidator Maven / Gradle / Ivy
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* Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
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* ownership. Camunda licenses this file to you under the Apache License,
* Version 2.0; 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,
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package org.camunda.bpm.engine.impl.migration.validation.instance;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.camunda.bpm.engine.impl.migration.instance.MigratingActivityInstance;
import org.camunda.bpm.engine.impl.migration.instance.MigratingInstance;
import org.camunda.bpm.engine.impl.migration.instance.MigratingProcessInstance;
import org.camunda.bpm.engine.impl.migration.instance.MigratingVariableInstance;
import org.camunda.bpm.engine.impl.pvm.process.ScopeImpl;
import org.camunda.bpm.engine.impl.util.CollectionUtil;
/**
* Validates that when an activity instance has a variable with the same name twice (as a scope execution variable and a
* a concurrent variable parent execution variable), no situation occurs in which either one is overwritten.
*
* @author Thorben Lindhauer
*/
public class VariableConflictActivityInstanceValidator implements MigratingActivityInstanceValidator {
@Override
public void validate(MigratingActivityInstance migratingInstance, MigratingProcessInstance migratingProcessInstance,
MigratingActivityInstanceValidationReportImpl instanceReport) {
ScopeImpl sourceScope = migratingInstance.getSourceScope();
ScopeImpl targetScope = migratingInstance.getTargetScope();
if (migratingInstance.migrates()) {
boolean becomesNonScope = sourceScope.isScope() && !targetScope.isScope();
if (becomesNonScope) {
Map> dependentVariablesByName = getMigratingVariableInstancesByName(migratingInstance);
for (String variableName : dependentVariablesByName.keySet()) {
if (dependentVariablesByName.get(variableName).size() > 1) {
instanceReport.addFailure("The variable '" + variableName + "' exists in both, this scope and "
+ "concurrent local in the parent scope. "
+ "Migrating to a non-scope activity would overwrite one of them.");
}
}
}
}
}
protected Map> getMigratingVariableInstancesByName(MigratingActivityInstance activityInstance) {
Map> result = new HashMap>();
for (MigratingInstance migratingInstance : activityInstance.getMigratingDependentInstances()) {
if (migratingInstance instanceof MigratingVariableInstance) {
MigratingVariableInstance migratingVariableInstance = (MigratingVariableInstance) migratingInstance;
CollectionUtil.addToMapOfLists(result, migratingVariableInstance.getVariableName(), migratingVariableInstance);
}
}
return result;
}
}