org.jbpm.bpmn2.handler.AbstractExceptionHandlingTaskHandler Maven / Gradle / Ivy
/*
* Copyright 2015 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
*
* 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.jbpm.bpmn2.handler;
import org.kie.api.runtime.process.*;
public abstract class AbstractExceptionHandlingTaskHandler implements WorkItemHandler {
private WorkItemHandler originalTaskHandler;
public AbstractExceptionHandlingTaskHandler(WorkItemHandler originalTaskHandler) {
this.originalTaskHandler = originalTaskHandler;
}
public AbstractExceptionHandlingTaskHandler(Class originalTaskHandlerClass) {
Class [] clsParams = {};
Object [] objParams = {};
try {
this.originalTaskHandler = originalTaskHandlerClass.getConstructor(clsParams).newInstance(objParams);
} catch( Exception e ) {
throw new UnsupportedOperationException("The " + WorkItemHandler.class.getSimpleName() + " parameter must have a public no-argument constructor." );
}
}
@Override
public void executeWorkItem(WorkItem workItem, WorkItemManager manager) {
try {
originalTaskHandler.executeWorkItem(workItem, manager);
} catch( Throwable cause ) {
handleExecuteException(cause, workItem, manager);
}
}
@Override
public void abortWorkItem(WorkItem workItem, WorkItemManager manager) {
try {
originalTaskHandler.abortWorkItem(workItem, manager);
} catch( RuntimeException re ) {
handleAbortException(re, workItem, manager);
}
}
public WorkItemHandler getOriginalTaskHandler() {
return originalTaskHandler;
}
public abstract void handleExecuteException(Throwable cause, WorkItem workItem, WorkItemManager manager);
public abstract void handleAbortException(Throwable cause, WorkItem workItem, WorkItemManager manager);
}