/**
* 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.spring.batch;
import java.util.Date;
import java.util.Map;
import org.apache.camel.Endpoint;
import org.apache.camel.Exchange;
import org.apache.camel.impl.DefaultProducer;
import org.springframework.batch.core.Job;
import org.springframework.batch.core.JobExecution;
import org.springframework.batch.core.JobParameters;
import org.springframework.batch.core.JobParametersBuilder;
import org.springframework.batch.core.launch.JobLauncher;
public class SpringBatchProducer extends DefaultProducer {
private final JobLauncher jobLauncher;
private final Job job;
public SpringBatchProducer(Endpoint endpoint, JobLauncher jobLauncher, Job job) {
super(endpoint);
this.job = job;
this.jobLauncher = jobLauncher;
}
@Override
public void process(Exchange exchange) throws Exception {
JobParameters jobParameters = prepareJobParameters(exchange.getIn().getHeaders());
JobExecution jobExecution = jobLauncher.run(job, jobParameters);
exchange.getOut().getHeaders().putAll(exchange.getIn().getHeaders());
exchange.getOut().setBody(jobExecution);
}
protected JobParameters prepareJobParameters(Map<String, Object> headers) {
JobParametersBuilder parametersBuilder = new JobParametersBuilder();
for (Map.Entry<String, Object> headerEntry : headers.entrySet()) {
String headerKey = headerEntry.getKey();
Object headerValue = headerEntry.getValue();
if (headerValue instanceof Date) {
parametersBuilder.addDate(headerKey, (Date) headerValue);
} else if (headerValue instanceof Long) {
parametersBuilder.addLong(headerKey, (Long) headerValue);
} else if (headerValue instanceof Double) {
parametersBuilder.addDouble(headerKey, (Double) headerValue);
} else if (headerValue != null) {
parametersBuilder.addString(headerKey, headerValue.toString());
} else {
// if the value is null we just put String with null value here to avoid the NPE
parametersBuilder.addString(headerKey, null);
}
}
return parametersBuilder.toJobParameters();
}
}