org.camunda.bpm.engine.impl.cmmn.behavior.CaseControlRuleImpl Maven / Gradle / Ivy
/*
* Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
* under one or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information regarding copyright
* 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,
* 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.camunda.bpm.engine.impl.cmmn.behavior;
import org.camunda.bpm.engine.delegate.Expression;
import org.camunda.bpm.engine.impl.ProcessEngineLogger;
import org.camunda.bpm.engine.impl.cmmn.CaseControlRule;
import org.camunda.bpm.engine.impl.cmmn.execution.CmmnActivityExecution;
import static org.camunda.bpm.engine.impl.util.EnsureUtil.ensureNotNull;
/**
* @author Roman Smirnov
*
*/
public class CaseControlRuleImpl implements CaseControlRule {
protected static final CmmnBehaviorLogger LOG = ProcessEngineLogger.CMNN_BEHAVIOR_LOGGER;
protected Expression expression;
public CaseControlRuleImpl(Expression expression) {
this.expression = expression;
}
public boolean evaluate(CmmnActivityExecution execution) {
if (expression == null) {
return true;
}
Object result = expression.getValue(execution);
ensureNotNull("rule expression returns null", "result", result);
if (!(result instanceof Boolean)) {
throw LOG.ruleExpressionNotBooleanException(result);
}
return (Boolean) result;
}
}