/*
* Copyright © 2014-2015 Cask Data, Inc.
*
* 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.
*/
package co.cask.cdap.data2.dataset2.lib.table.hbase;
import co.cask.cdap.api.dataset.DatasetAdmin;
import co.cask.cdap.api.dataset.DatasetContext;
import co.cask.cdap.api.dataset.DatasetProperties;
import co.cask.cdap.api.dataset.DatasetSpecification;
import co.cask.cdap.api.dataset.lib.AbstractDatasetDefinition;
import co.cask.cdap.common.conf.CConfiguration;
import co.cask.cdap.common.conf.Constants;
import co.cask.cdap.data2.dataset2.lib.table.MetricsTable;
import co.cask.cdap.data2.util.hbase.HBaseTableUtil;
import com.google.inject.Inject;
import org.apache.hadoop.conf.Configuration;
import org.apache.twill.filesystem.LocationFactory;
import java.io.IOException;
import java.util.Map;
/**
* HBase based implementation for {@link MetricsTable}.
*/
// todo: re-use HBase table based dataset instead of having separate classes hierarchies, see CDAP-1193
public class HBaseMetricsTableDefinition extends AbstractDatasetDefinition<MetricsTable, DatasetAdmin> {
@Inject
private Configuration hConf;
@Inject
private HBaseTableUtil hBaseTableUtil;
@Inject
private LocationFactory locationFactory;
@Inject
private CConfiguration cConf;
public HBaseMetricsTableDefinition(String name) {
super(name);
}
// for unit-test purposes only
HBaseMetricsTableDefinition(String name, Configuration hConf, HBaseTableUtil hBaseTableUtil,
LocationFactory locationFactory, CConfiguration cConf) {
super(name);
this.hConf = hConf;
this.hBaseTableUtil = hBaseTableUtil;
this.locationFactory = locationFactory;
this.cConf = cConf;
}
@Override
public DatasetSpecification configure(String name, DatasetProperties properties) {
return DatasetSpecification.builder(name, getName())
.properties(properties.getProperties())
.property(Constants.Dataset.TABLE_TX_DISABLED, "true")
.build();
}
@Override
public MetricsTable getDataset(DatasetContext datasetContext, DatasetSpecification spec,
Map<String, String> arguments, ClassLoader classLoader) throws IOException {
return new HBaseMetricsTable(datasetContext, spec, hConf, hBaseTableUtil);
}
@Override
public DatasetAdmin getAdmin(DatasetContext datasetContext, DatasetSpecification spec,
ClassLoader classLoader) throws IOException {
return new HBaseTableAdmin(datasetContext, spec, hConf, hBaseTableUtil, cConf, locationFactory);
}
}