/*
* 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.leveldb;
import co.cask.cdap.api.data.schema.Schema;
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.api.dataset.table.ConflictDetection;
import co.cask.cdap.api.dataset.table.Table;
import co.cask.cdap.common.conf.CConfiguration;
import com.google.inject.Inject;
import java.io.IOException;
import java.util.Map;
/**
*
*/
public class LevelDBTableDefinition
extends AbstractDatasetDefinition<Table, LevelDBTableAdmin> {
@Inject
private LevelDBTableService service;
@Inject
private CConfiguration cConf;
public LevelDBTableDefinition(String name) {
super(name);
}
@Override
public DatasetSpecification configure(String name, DatasetProperties properties) {
return DatasetSpecification.builder(name, getName())
.properties(properties.getProperties())
.build();
}
@Override
public Table getDataset(DatasetContext datasetContext, DatasetSpecification spec,
Map<String, String> arguments, ClassLoader classLoader) throws IOException {
// TODO: refactor common table properties into a common class
ConflictDetection conflictDetection =
ConflictDetection.valueOf(spec.getProperty(Table.PROPERTY_CONFLICT_LEVEL, ConflictDetection.ROW.name()));
String schemaRowField = spec.getProperty(Table.PROPERTY_SCHEMA_ROW_FIELD);
String schemaStr = spec.getProperty(Table.PROPERTY_SCHEMA);
Schema schema;
try {
schema = schemaStr == null ? null : Schema.parseJson(schemaStr);
} catch (IOException e) {
throw new IllegalArgumentException("Invalid schema", e);
}
return new LevelDBTable(datasetContext, spec.getName(), conflictDetection, service, cConf, schema, schemaRowField);
}
@Override
public LevelDBTableAdmin getAdmin(DatasetContext datasetContext, DatasetSpecification spec,
ClassLoader classLoader) throws IOException {
return new LevelDBTableAdmin(datasetContext, spec, service, cConf);
}
}