standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/HiveMetaStoreFsImpl.java

/*
 * 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.hadoop.hive.metastore.utils.FileUtils;
import org.apache.hadoop.hive.metastore.utils.MetaStoreUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hive.metastore.api.MetaException;

public class HiveMetaStoreFsImpl implements MetaStoreFS {

  public static final Logger LOG = LoggerFactory
      .getLogger("hive.metastore.hivemetastoreFsimpl");

  @Override
  public boolean deleteDir(FileSystem fs, Path f, boolean recursive,
      boolean ifPurge, Configuration conf) throws MetaException {
    try {
      if (FileUtils.moveToTrash(fs, f, conf, ifPurge)) {
        return true;
      }
      if (fs.exists(f)) {
        throw new MetaException("Unable to delete directory: " + f);
      }
      return true;
    } catch (FileNotFoundException e) {
      return true; // ok even if there is not data
    } catch (Exception e) {
      MetaStoreUtils.throwMetaException(e);
    }
    return false;
  }
}