/**
* 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.metastore;
import java.io.FileNotFoundException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.Trash;
import org.apache.hadoop.hive.metastore.api.MetaException;
public class HiveMetaStoreFsImpl implements MetaStoreFS {
public static final Log LOG = LogFactory
.getLog("hive.metastore.hivemetastoressimpl");
@Override
public boolean deleteDir(FileSystem fs, Path f, boolean recursive,
Configuration conf) throws MetaException {
LOG.info("deleting " + f);
// older versions of Hadoop don't have a Trash constructor based on the
// Path or FileSystem. So need to achieve this by creating a dummy conf.
// this needs to be filtered out based on version
Configuration dupConf = new Configuration(conf);
FileSystem.setDefaultUri(dupConf, fs.getUri());
try {
Trash trashTmp = new Trash(dupConf);
if (trashTmp.moveToTrash(f)) {
LOG.info("Moved to trash: " + f);
return true;
}
if (fs.delete(f, true)) {
LOG.info("Deleted the diretory " + f);
return true;
}
if (fs.exists(f)) {
throw new MetaException("Unable to delete directory: " + f);
}
} catch (FileNotFoundException e) {
return true; // ok even if there is not data
} catch (Exception e) {
Warehouse.closeFs(fs);
MetaStoreUtils.logAndThrowMetaException(e);
}
return false;
}
}