/*
* Copyright © 2014 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.DatasetProperties;
import co.cask.cdap.api.dataset.DatasetSpecification;
import co.cask.cdap.api.dataset.lib.AbstractDatasetDefinition;
import co.cask.cdap.api.dataset.table.ConflictDetection;
import co.cask.cdap.api.dataset.table.OrderedTable;
import co.cask.cdap.common.conf.CConfiguration;
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;
/**
*
*/
public class HBaseOrderedTableDefinition
extends AbstractDatasetDefinition<OrderedTable, HBaseOrderedTableAdmin> {
@Inject
private Configuration hConf;
@Inject
private HBaseTableUtil hBaseTableUtil;
@Inject
private LocationFactory locationFactory;
// todo: datasets should not depend on cdap configuration!
@Inject
private CConfiguration conf;
public HBaseOrderedTableDefinition(String name) {
super(name);
}
@Override
public DatasetSpecification configure(String name, DatasetProperties properties) {
return DatasetSpecification.builder(name, getName())
.properties(properties.getProperties())
.build();
}
@Override
public OrderedTable getDataset(DatasetSpecification spec,
Map<String, String> arguments, ClassLoader classLoader) throws IOException {
ConflictDetection conflictDetection =
ConflictDetection.valueOf(spec.getProperty("conflict.level", ConflictDetection.ROW.name()));
// NOTE: ttl property is applied on server-side in CPs
// check if read-less increment operations are supported
boolean supportsIncrements = HBaseOrderedTableAdmin.supportsReadlessIncrements(spec);
return new HBaseOrderedTable(spec.getName(), conflictDetection, hConf, supportsIncrements);
}
@Override
public HBaseOrderedTableAdmin getAdmin(DatasetSpecification spec, ClassLoader classLoader) throws IOException {
return new HBaseOrderedTableAdmin(spec, hConf, hBaseTableUtil, conf, locationFactory);
}
}