/*
* 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.flume.sink;
import org.apache.flume.FlumeException;
import org.apache.flume.Sink;
import org.apache.flume.SinkFactory;
import org.apache.flume.conf.sink.SinkType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.base.Preconditions;
public class DefaultSinkFactory implements SinkFactory {
private static final Logger logger = LoggerFactory
.getLogger(DefaultSinkFactory.class);
@Override
public Sink create(String name, String type) throws FlumeException {
Preconditions.checkNotNull(name, "name");
Preconditions.checkNotNull(type, "type");
logger.info("Creating instance of sink: {}, type: {}", name, type);
Class<? extends Sink> sinkClass = getClass(type);
try {
Sink sink = sinkClass.newInstance();
sink.setName(name);
return sink;
} catch (Exception ex) {
throw new FlumeException("Unable to create sink: " + name
+ ", type: " + type + ", class: " + sinkClass.getName(), ex);
}
}
@SuppressWarnings("unchecked")
@Override
public Class<? extends Sink> getClass(String type)
throws FlumeException {
String sinkClassName = type;
SinkType sinkType = SinkType.OTHER;
try {
sinkType = SinkType.valueOf(type.toUpperCase());
} catch (IllegalArgumentException ex) {
logger.debug("Sink type {} is a custom type", type);
}
if (!sinkType.equals(SinkType.OTHER)) {
sinkClassName = sinkType.getSinkClassName();
}
try {
return (Class<? extends Sink>) Class.forName(sinkClassName);
} catch (Exception ex) {
throw new FlumeException("Unable to load sink type: " + type
+ ", class: " + sinkClassName, ex);
}
}
}