/*
 * Copyright (C) 2003-2012 eXo Platform SAS.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package org.exoplatform.forum.common.cache.model;


import java.io.Serializable;

import org.exoplatform.container.ExoContainer;
import org.exoplatform.container.PortalContainer;
import org.exoplatform.container.RootContainer;
import org.exoplatform.services.jcr.RepositoryService;
import org.exoplatform.services.jcr.core.ManageableRepository;

public class ScopeCacheKey implements Serializable {
  private static final long serialVersionUID = 1L;

  public final static ScopeCacheKey NULL = new ScopeCacheKey();
  
  private final String scope;

  public ScopeCacheKey() {
    scope = getCurrentRepositoryName();
  }

  public String getScope() {
    return scope;
  }

  @Override
  public boolean equals(final Object o) {
    if (this == o) {
      return true;
    }
    if (!(o instanceof ScopeCacheKey)) {
      return false;
    }

    ScopeCacheKey that = (ScopeCacheKey) o;

    if (scope != null ? !scope.equals(that.scope) : that.scope != null) {
      return false;
    }

    return true;
  }

  @Override
  public int hashCode() {
    return scope != null ? scope.hashCode() : 0;
  }

  public static String getCurrentRepositoryName() {

    ExoContainer container = PortalContainer.getInstance();
    RepositoryService repositoryService = (RepositoryService) container.getComponentInstanceOfType(RepositoryService.class);
    if (repositoryService == null) {
      container = RootContainer.getInstance()
                               .getPortalContainer(PortalContainer.getCurrentPortalContainerName());
      repositoryService = (RepositoryService) container.getComponentInstanceOfType(RepositoryService.class);
    }
    try {
      ManageableRepository manageableRepository = repositoryService.getCurrentRepository();
      return manageableRepository == null ? null : manageableRepository.getConfiguration().getName();
    } catch (Exception e) {
      throw new RuntimeException(e);
    }
  }

}
