/* 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.cdi.impl;
import java.util.EmptyStackException;
import org.activiti.cdi.annotation.BusinessProcessScoped;
import org.activiti.cdi.impl.context.BusinessProcessAssociationManager;
import org.activiti.cdi.impl.context.CachingBeanStore;
import org.activiti.cdi.impl.util.ProgrammaticBeanLookup;
import org.activiti.engine.impl.context.Context;
import org.activiti.engine.impl.delegate.DelegateInvocation;
import org.activiti.engine.impl.interceptor.DelegateInterceptor;
import org.activiti.engine.impl.persistence.entity.ExecutionEntity;
/**
* This flushes any process variables and {@link BusinessProcessScoped
* @BusinessProcessScoped} beans after a call to delegate code returns.
*
* @author Daniel Meyer
*/
public class CdiProcessVariableFlushingDelegateInterceptor implements DelegateInterceptor {
public void handleInvocation(DelegateInvocation invocation) throws Exception {
invocation.proceed();
ExecutionEntity execution = null;
try {
execution = Context.getExecutionContext().getExecution();
} catch (EmptyStackException e) {
// silently ignore, not called in the context of an execution.
return;
}
CachingBeanStore beanStore = getAssociationManager().getBeanStore();
execution.setVariables(beanStore.getAllAndClear());
}
protected BusinessProcessAssociationManager getAssociationManager() {
return ProgrammaticBeanLookup.lookup(BusinessProcessAssociationManager.class);
}
}