/*
* 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.api.dataset.lib;
import co.cask.cdap.api.data.schema.UnsupportedTypeException;
import co.cask.cdap.api.dataset.DatasetAdmin;
import co.cask.cdap.api.dataset.DatasetContext;
import co.cask.cdap.api.dataset.DatasetDefinition;
import co.cask.cdap.api.dataset.DatasetProperties;
import co.cask.cdap.api.dataset.DatasetSpecification;
import co.cask.cdap.data2.dataset2.lib.table.ObjectStoreDataset;
import java.io.IOException;
import java.util.Map;
/**
*
*/
public class IntegerStoreDefinition
extends AbstractDatasetDefinition<ObjectStoreDataset<Integer>, DatasetAdmin> {
private final DatasetDefinition<? extends KeyValueTable, ?> tableDef;
public IntegerStoreDefinition(String name, DatasetDefinition<? extends KeyValueTable, ?> keyValueTableDefinition) {
super(name);
this.tableDef = keyValueTableDefinition;
}
@Override
public DatasetSpecification configure(String instanceName, DatasetProperties properties) {
return DatasetSpecification.builder(instanceName, getName())
.properties(properties.getProperties())
.datasets(tableDef.configure("table", properties))
.build();
}
@Override
public DatasetAdmin getAdmin(DatasetContext datasetContext, DatasetSpecification spec,
ClassLoader classLoader) throws IOException {
return tableDef.getAdmin(datasetContext, spec.getSpecification("table"), classLoader);
}
@Override
public ObjectStoreDataset<Integer> getDataset(DatasetContext datasetContext, DatasetSpecification spec,
Map<String, String> arguments,
ClassLoader classLoader) throws IOException {
DatasetSpecification kvTableSpec = spec.getSpecification("table");
KeyValueTable table = tableDef.getDataset(datasetContext, kvTableSpec, arguments, classLoader);
try {
return new IntegerStore(spec.getName(), table);
} catch (UnsupportedTypeException e) {
// shouldn't happen
throw new IOException(e);
}
}
}