PersistentCacheConfig.java

/**
 * This file is part of git-as-svn. It is subject to the license terms
 * in the LICENSE file found in the top-level directory of this distribution
 * and at http://www.gnu.org/licenses/gpl-2.0.html. No part of git-as-svn,
 * including this file, may be copied, modified, propagated, or distributed
 * except according to the terms contained in the LICENSE file.
 */
package svnserver.config;

import org.jetbrains.annotations.NotNull;
import org.mapdb.DB;
import org.mapdb.DBMaker;
import svnserver.config.serializer.ConfigType;

import java.io.File;

/**
 * Persistent cache config.
 *
 * @author Artem V. Navrotskiy <bozaro@users.noreply.github.com>
 */
@ConfigType("persistentCache")
public class PersistentCacheConfig implements CacheConfig {
  @SuppressWarnings("FieldCanBeLocal")
  @NotNull
  private String path = "git-as-svn.mapdb";

  @NotNull
  @Override
  public DB createCache(@NotNull File basePath) {
    final File cacheBase = ConfigHelper.joinPath(basePath, path);
    //noinspection ResultOfMethodCallIgnored
    cacheBase.getParentFile().mkdirs();
    return DBMaker.newFileDB(cacheBase)
        .closeOnJvmShutdown()
        .asyncWriteEnable()
        .mmapFileEnable()
        .cacheSoftRefEnable()
        .make();
  }
}