it.tidalwave.geo.viewer.impl.role.UserHomeCacheLocationProvider Maven / Gradle / Ivy

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/***********************************************************************************************************************
 *
 * forceTen - open source geography
 * Copyright (C) 2007-2012 by Tidalwave s.a.s. (http://www.tidalwave.it)
 *
 ***********************************************************************************************************************
 *
 * 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.
 *
 ***********************************************************************************************************************
 *
 * WWW: http://forceten.tidalwave.it
 * SCM: https://bitbucket.org/tidalwave/forceten-src
 *
 **********************************************************************************************************************/
package it.tidalwave.geo.viewer.impl.role;

import javax.annotation.Nonnull;
import java.io.File;
import it.tidalwave.geo.viewer.role.CacheLocationProvider;

/***********************************************************************************************************************
 *
 * @stereotype Role
 *
 * @author  Fabrizio Giudici
 * @version $Id$
 *
 **********************************************************************************************************************/
public class UserHomeCacheLocationProvider implements CacheLocationProvider
  {
    @Override
    @Nonnull
    public File getCacheFolder() 
      {
        final File file = new File(System.getProperty("user.home"), ".ForceTen/Cache");

        if (!file.mkdirs() && (!file.exists() || !file.isDirectory()))
          {
            throw new RuntimeException("Cannot create " + file);
          }

        return file;               
      }
  }