/**
* 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 org.apache.hadoop.hive.ql.metadata;
import java.util.Map;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hive.metastore.HiveMetaHook;
import org.apache.hadoop.hive.ql.plan.TableDesc;
import org.apache.hadoop.hive.serde2.SerDe;
import org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe;
import org.apache.hadoop.hive.ql.security.authorization.HiveAuthorizationProvider;
import org.apache.hadoop.hive.ql.security.authorization.DefaultHiveAuthorizationProvider;
import org.apache.hadoop.mapred.InputFormat;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.mapred.OutputFormat;
import org.apache.hadoop.mapred.SequenceFileInputFormat;
import org.apache.hadoop.mapred.SequenceFileOutputFormat;
/**
* DefaultStorageHandler is an implementation of {@link HiveStorageHandler}
* which supplies the standard defaults for all options. This can be useful
* either as the base class for custom storage handlers, or as a mock in tests
* (providing something which appears to be a non-native table with respect to
* metadata even though its behavior is otherwise identical to a native table).
*/
public class DefaultStorageHandler implements HiveStorageHandler {
private Configuration conf;
@Override
public Class<? extends InputFormat> getInputFormatClass() {
return SequenceFileInputFormat.class;
}
@Override
public Class<? extends OutputFormat> getOutputFormatClass() {
return SequenceFileOutputFormat.class;
}
@Override
public Class<? extends SerDe> getSerDeClass() {
return LazySimpleSerDe.class;
}
@Override
public HiveMetaHook getMetaHook() {
// no hook by default
return null;
}
public HiveAuthorizationProvider getAuthorizationProvider()
throws HiveException {
return new DefaultHiveAuthorizationProvider();
}
@Override
public void configureInputJobProperties(TableDesc tableDesc,
Map<String, String> jobProperties) {
// do nothing by default
}
@Override
public void configureOutputJobProperties(TableDesc tableDesc,
Map<String, String> jobProperties) {
// do nothing by default
}
@Override
public void configureTableJobProperties(TableDesc tableDesc,
Map<String, String> jobProperties) {
//do nothing by default
}
@Override
public void configureJobConf(TableDesc tableDesc, JobConf jobConf) {
//do nothing by default
}
@Override
public Configuration getConf() {
return conf;
}
@Override
public void setConf(Configuration conf) {
this.conf = conf;
}
}