/* Licensed under the Apache License, Version 2.0 (the "License");
* 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.activiti.spring.test.fieldinjection;
import java.util.concurrent.atomic.AtomicInteger;
import org.activiti.engine.delegate.DelegateExecution;
import org.activiti.engine.delegate.Expression;
import org.activiti.engine.delegate.JavaDelegate;
import org.activiti.engine.delegate.DelegateHelper;
/**
* @author Joram Barrez
*/
public class SingletonDelegateExpressionBean implements JavaDelegate {
public static AtomicInteger INSTANCE_COUNT = new AtomicInteger(0);
public SingletonDelegateExpressionBean() {
INSTANCE_COUNT.incrementAndGet();
}
@Override
public void execute(DelegateExecution execution) throws Exception {
// just a quick check to avoid creating a specific test for it
int nrOfFieldExtensions = DelegateHelper.getFields(execution).size();
if (nrOfFieldExtensions != 3) {
throw new RuntimeException("Error: 3 field extensions expected, but was " + nrOfFieldExtensions);
}
Expression fieldAExpression = DelegateHelper.getFieldExpression(execution, "fieldA");
Number fieldA = (Number) fieldAExpression.getValue(execution);
Expression fieldBExpression = DelegateHelper.getFieldExpression(execution, "fieldB");
Number fieldB = (Number) fieldBExpression.getValue(execution);
int result = fieldA.intValue() + fieldB.intValue();
String resultVariableName = DelegateHelper.getFieldExpression(execution, "resultVariableName").getValue(execution).toString();
execution.setVariable(resultVariableName, result);
}
}