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Under File System implementation that uses local file system

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/*
 * Licensed to the University of California, Berkeley 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 tachyon.underfs.local;

import com.google.common.base.Preconditions;

import tachyon.TachyonURI;
import tachyon.conf.TachyonConf;
import tachyon.underfs.UnderFileSystem;
import tachyon.underfs.UnderFileSystemFactory;

/**
 * Factory for {@link LocalUnderFileSystem} instances
 */
public class LocalUnderFileSystemFactory implements UnderFileSystemFactory {

  @Override
  public UnderFileSystem create(String path, TachyonConf tachyonConf, Object ufsConf) {
    Preconditions.checkArgument(path != null, "path may not be null");
    return new LocalUnderFileSystem(tachyonConf);
  }

  @Override
  public boolean supportsPath(String path, TachyonConf tachyonConf) {
    if (path == null) {
      return false;
    }
    return path.startsWith(TachyonURI.SEPARATOR) || path.startsWith("file://");
  }
}