/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.camel.component.aws.swf;
import com.amazonaws.services.simpleworkflow.flow.worker.GenericWorkflowWorker;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.impl.DefaultConsumer;
import org.apache.camel.util.URISupport;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import static org.apache.camel.ExchangePattern.InOnly;
public class SWFWorkflowConsumer extends DefaultConsumer {
private static final transient Logger LOGGER = LoggerFactory.getLogger(SWFWorkflowProducer.class);
private SWFEndpoint endpoint;
private final SWFConfiguration configuration;
private GenericWorkflowWorker genericWorker;
public SWFWorkflowConsumer(SWFEndpoint endpoint, Processor processor, SWFConfiguration configuration) {
super(endpoint, processor);
this.endpoint = endpoint;
this.configuration = configuration;
}
public Object processWorkflow(Object[] parameters, long startTime, boolean replaying) throws Exception {
LOGGER.debug("Processing workflow task: " + parameters);
Exchange exchange = endpoint.createExchange(parameters, SWFConstants.EXECUTE_ACTION);
exchange.getIn().setHeader(SWFConstants.WORKFLOW_START_TIME, startTime);
exchange.getIn().setHeader(SWFConstants.WORKFLOW_REPLAYING, replaying);
getProcessor().process(exchange);
return endpoint.getResult(exchange);
}
public void signalRecieved(Object[] parameters) throws Exception {
LOGGER.debug("signalRecieved: " + parameters);
Exchange exchange = endpoint.createExchange(parameters, SWFConstants.SIGNAL_RECEIVED_ACTION);
exchange.setPattern(InOnly);
getProcessor().process(exchange);
}
public Object getWorkflowState(Object parameters) throws Exception {
LOGGER.debug("getWorkflowState: " + parameters);
Exchange exchange = endpoint.createExchange(parameters, SWFConstants.GET_STATE_ACTION);
getProcessor().process(exchange);
return endpoint.getResult(exchange);
}
@Override
protected void doStart() throws Exception {
CamelWorkflowDefinitionFactoryFactory factoryFactory = new CamelWorkflowDefinitionFactoryFactory(this, configuration);
genericWorker = new GenericWorkflowWorker(endpoint.getSWClient(), configuration.getDomainName(), configuration.getWorkflowList());
genericWorker.setWorkflowDefinitionFactoryFactory(factoryFactory);
genericWorker.start();
super.doStart();
}
@Override
protected void doStop() throws Exception {
genericWorker.setDisableServiceShutdownOnStop(true);
genericWorker.shutdownNow();
super.doStop();
}
@Override
public String toString() {
return "SWFWorkflowConsumer[" + URISupport.sanitizeUri(getEndpoint().getEndpointUri()) + "]";
}
}