/*
* Copyright 2013 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.executor.cdi.commands;
import javax.enterprise.inject.spi.BeanManager;
import org.apache.commons.lang3.StringUtils;
import org.jbpm.executor.cdi.CDIUtils;
import org.kie.api.executor.Command;
import org.kie.api.executor.CommandContext;
import org.kie.api.executor.ExecutionResults;
import org.kie.api.executor.ExecutorService;
import org.kie.api.runtime.process.WorkItem;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Simple command to log the contextual data and return empty results. After attempting to get BeanManager
* and creating simple CDI bean based on given class name as parameter.
* Just for demo purpose.
*
*/
public class CDIPrintOutCommand implements Command{
private static final Logger logger = LoggerFactory.getLogger(CDIPrintOutCommand.class);
public ExecutionResults execute(CommandContext ctx) {
BeanManager manager = CDIUtils.lookUpBeanManager(ctx);
String clazz = (String) getParameter(ctx, "CDIBeanClassName");
if (StringUtils.isEmpty(clazz)) {
clazz = ExecutorService.class.getName();
}
try {
Object cdiBean = CDIUtils.createBean(Class.forName(clazz), manager);
logger.info("CDI bean created {}", cdiBean);
} catch (Exception e) {
logger.error("Error while creating CDI bean from jbpm executor", e);
}
logger.info("Command executed on executor with data {}", ctx.getData());
ExecutionResults executionResults = new ExecutionResults();
return executionResults;
}
protected Object getParameter(CommandContext commandContext, String parameterName) {
if (commandContext.getData(parameterName) != null) {
return commandContext.getData(parameterName);
}
WorkItem workItem = (WorkItem) commandContext.getData("workItem");
if (workItem != null) {
return workItem.getParameter(parameterName);
}
return null;
}
}