/**
* 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.flatpack;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import net.sf.flatpack.DataSet;
import net.sf.flatpack.DefaultParserFactory;
import net.sf.flatpack.Parser;
import net.sf.flatpack.ParserFactory;
import org.apache.camel.Consumer;
import org.apache.camel.Exchange;
import org.apache.camel.InvalidPayloadException;
import org.apache.camel.Message;
import org.apache.camel.Processor;
import org.apache.camel.Producer;
import org.apache.camel.impl.DefaultPollingEndpoint;
import org.apache.camel.processor.loadbalancer.LoadBalancer;
import org.apache.camel.processor.loadbalancer.LoadBalancerConsumer;
import org.apache.camel.processor.loadbalancer.RoundRobinLoadBalancer;
import org.apache.camel.util.ExchangeHelper;
import org.apache.camel.util.ObjectHelper;
import org.springframework.core.io.Resource;
/**
* A <a href="http://flatpack.sourceforge.net/">Flatpack Endpoint</a>
* for working with fixed width and delimited files
*
* @version $Revision: 686616 $
*/
public class FixedLengthEndpoint extends DefaultPollingEndpoint<Exchange> {
private final Resource resource;
private LoadBalancer loadBalancer = new RoundRobinLoadBalancer();
private ParserFactory parserFactory = DefaultParserFactory.getInstance();
private boolean splitRows = true;
public FixedLengthEndpoint(String uri, Resource resource) {
super(uri);
this.resource = resource;
}
public boolean isSingleton() {
return true;
}
public Producer<Exchange> createProducer() throws Exception {
return new FlatpackProducer(this);
}
public Consumer<Exchange> createConsumer(Processor processor) throws Exception {
return new LoadBalancerConsumer(this, processor, loadBalancer);
}
public void processDataSet(DataSet dataSet, int counter) throws Exception {
Exchange exchange = createExchange(dataSet, counter);
loadBalancer.process(exchange);
}
public Exchange createExchange(DataSet dataSet, int counter) {
Exchange answer = createExchange();
Message in = answer.getIn();
in.setBody(dataSet);
in.setHeader("camelFlatpackCounter", counter);
return answer;
}
public Parser createParser(Exchange exchange) throws InvalidPayloadException, IOException {
Resource resource = getResource();
ObjectHelper.notNull(resource, "endpoint.resource");
Reader bodyReader = ExchangeHelper.getMandatoryInBody(exchange, Reader.class);
return createParser(resource, bodyReader);
}
protected Parser createParser(Resource resource, Reader bodyReader) throws IOException {
return getParserFactory().newFixedLengthParser(new InputStreamReader(resource.getInputStream()), bodyReader);
}
// Properties
//-------------------------------------------------------------------------
public Resource getResource() {
return resource;
}
public ParserFactory getParserFactory() {
return parserFactory;
}
public void setParserFactory(ParserFactory parserFactory) {
this.parserFactory = parserFactory;
}
public LoadBalancer getLoadBalancer() {
return loadBalancer;
}
public void setLoadBalancer(LoadBalancer loadBalancer) {
this.loadBalancer = loadBalancer;
}
public boolean isSplitRows() {
return splitRows;
}
public void setSplitRows(boolean splitRows) {
this.splitRows = splitRows;
}
}