/*
* Copyright 2017 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.
* 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.jbpm.runtime.manager.impl.error;
import java.util.ArrayList;
import java.util.List;
import org.kie.api.runtime.process.NodeInstance;
import org.kie.api.task.model.Task;
import org.kie.internal.runtime.error.ExecutionError;
import org.kie.internal.runtime.error.ExecutionErrorContext;
import org.kie.internal.runtime.error.ExecutionErrorFilter;
import org.kie.internal.runtime.error.ExecutionErrorHandler;
import org.kie.internal.runtime.error.ExecutionErrorStorage;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class ExecutionErrorHandlerImpl implements ExecutionErrorHandler {
private static final Logger logger = LoggerFactory.getLogger(ExecutionErrorHandlerImpl.class);
private List<NodeInstance> nodeInstances = new ArrayList<>();
private List<Task> tasks = new ArrayList<>();
private List<ExecutionErrorFilter> filters;
private ExecutionErrorStorage storage;
private NodeInstance lastExecutedNode;
private Task lastExecutedTask;
public ExecutionErrorHandlerImpl(List<ExecutionErrorFilter> filters, ExecutionErrorStorage storage) {
super();
this.filters = filters;
this.storage = storage;
}
@Override
public void processing(NodeInstance nodeInstance) {
this.nodeInstances.add(nodeInstance);
logger.debug("Node instance {} is being executed", nodeInstance);
this.lastExecutedNode = nodeInstance;
}
@Override
public void processing(Task task) {
this.tasks.add(task);
logger.debug("Tasj instance {} is being executed", task);
this.lastExecutedTask = task;
}
@Override
public void processed(NodeInstance nodeInstance) {
this.nodeInstances.remove(nodeInstance);
logger.debug("Node instance {} successfully executed", nodeInstance);
}
@Override
public void processed(Task task) {
this.tasks.remove(task);
logger.debug("Task instance {} successfully executed", task);
}
@Override
public void handle(Throwable cause) {
ExecutionErrorContext errorContext = new ExecutionErrorContext(cause, lastExecutedNode, lastExecutedTask);
for (ExecutionErrorFilter filter : filters) {
if (filter.accept(errorContext)) {
ExecutionError error = filter.filter(errorContext);
logger.debug("Filter {} returned {} for {}", filter, error, cause);
if (error != null) {
storage.store(error);
logger.debug("Error event {} stored successfully in {}", error, storage);
} else {
logger.debug("Filter {} accepted error {} but didn't produce results (error should be ignored)", filter, cause);
}
return;
}
}
// in case it ended up here - meaning not filters dealt with it, simply log the error
logger.error("Unexpected error during processing ", cause);
}
}