/*
* 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 gobblin.source.extractor.extract.jdbc;
import gobblin.source.extractor.Extractor;
import gobblin.source.extractor.exception.ExtractPrepareException;
import java.io.IOException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import gobblin.configuration.WorkUnitState;
import gobblin.source.extractor.extract.QueryBasedSource;
/**
* An implementation of mysql source to get work units
*
* @author nveeramr
*/
public class MysqlSource extends QueryBasedSource<JsonArray, JsonElement> {
private static final Logger LOG = LoggerFactory.getLogger(MysqlSource.class);
@Override
public Extractor<JsonArray, JsonElement> getExtractor(WorkUnitState state) throws IOException {
Extractor<JsonArray, JsonElement> extractor = null;
try {
extractor = new MysqlExtractor(state).build();
} catch (ExtractPrepareException e) {
LOG.error("Failed to prepare extractor: error - " + e.getMessage());
throw new IOException(e);
}
return extractor;
}
}