package com.linkedin.databus.client.example;
/*
*
* Copyright 2013 LinkedIn Corp. All rights reserved
*
* 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.
*
*/
import org.apache.avro.generic.GenericRecord;
import org.apache.avro.util.Utf8;
import org.apache.log4j.Logger;
import com.linkedin.databus.client.consumer.AbstractDatabusCombinedConsumer;
import com.linkedin.databus.client.pub.ConsumerCallbackResult;
import com.linkedin.databus.client.pub.DbusEventDecoder;
import com.linkedin.databus.core.DbusEvent;
public class PersonConsumer extends AbstractDatabusCombinedConsumer
{
public static final Logger LOG = Logger.getLogger(PersonConsumer.class.getName());
@Override
public ConsumerCallbackResult onDataEvent(DbusEvent event,
DbusEventDecoder eventDecoder)
{
return processEvent(event, eventDecoder);
}
@Override
public ConsumerCallbackResult onBootstrapEvent(DbusEvent event,
DbusEventDecoder eventDecoder)
{
return processEvent(event, eventDecoder);
}
private ConsumerCallbackResult processEvent(DbusEvent event,
DbusEventDecoder eventDecoder)
{
GenericRecord decodedEvent = eventDecoder.getGenericRecord(event, null);
try {
Utf8 firstName = (Utf8)decodedEvent.get("firstName");
Utf8 lastName = (Utf8)decodedEvent.get("lastName");
Long birthDate = (Long)decodedEvent.get("birthDate");
Utf8 deleted = (Utf8)decodedEvent.get("deleted");
LOG.info("firstName: " + firstName.toString() +
", lastName: " + lastName.toString() +
", birthDate: " + birthDate +
", deleted: " + deleted.toString());
} catch (Exception e) {
LOG.error("error decoding event ", e);
return ConsumerCallbackResult.ERROR;
}
return ConsumerCallbackResult.SUCCESS;
}
}