/**
* 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.ignite.idgen;
import org.apache.camel.AsyncCallback;
import org.apache.camel.Exchange;
import org.apache.camel.Message;
import org.apache.camel.component.ignite.IgniteConstants;
import org.apache.camel.impl.DefaultAsyncProducer;
import org.apache.camel.util.MessageHelper;
import org.apache.ignite.IgniteAtomicSequence;
/**
* Ignite ID Generator producer.
*/
public class IgniteIdGenProducer extends DefaultAsyncProducer {
private IgniteIdGenEndpoint endpoint;
private IgniteAtomicSequence atomicSeq;
public IgniteIdGenProducer(IgniteIdGenEndpoint endpoint, IgniteAtomicSequence atomicSeq) {
super(endpoint);
this.endpoint = endpoint;
this.atomicSeq = atomicSeq;
}
@Override
public boolean process(Exchange exchange, AsyncCallback callback) {
Message in = exchange.getIn();
Message out = exchange.getOut();
MessageHelper.copyHeaders(in, out, true);
Long id = in.getBody(Long.class);
switch (idGenOperationFor(exchange)) {
case ADD_AND_GET:
out.setBody(atomicSeq.addAndGet(id));
break;
case GET:
out.setBody(atomicSeq.get());
break;
case GET_AND_ADD:
out.setBody(atomicSeq.getAndAdd(id));
break;
case GET_AND_INCREMENT:
out.setBody(atomicSeq.getAndIncrement());
break;
case INCREMENT_AND_GET:
out.setBody(atomicSeq.incrementAndGet());
break;
default:
exchange.setException(new UnsupportedOperationException("Operation not supported by Ignite ID Generator producer."));
return true;
}
return true;
}
private IgniteIdGenOperation idGenOperationFor(Exchange exchange) {
return exchange.getIn().getHeader(IgniteConstants.IGNITE_IDGEN_OPERATION, endpoint.getOperation(), IgniteIdGenOperation.class);
}
}