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Java APIs to validate and request VOMS attribute certificates
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/**
 * Copyright (c) Istituto Nazionale di Fisica Nucleare, 2006-2014.
 *
 * 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.
 */
package org.italiangrid.voms.store;

import java.security.cert.X509Certificate;
import java.util.List;
import java.util.Map;
import java.util.Set;

import javax.security.auth.x500.X500Principal;

/**
 * The VOMS trust store takes care of parsing local trusted information (being
 * certificates or LSC files) for known VOMS servers.
 * 
 * @author Andrea Ceccanti
 *
 */
public interface VOMSTrustStore {

  /**
   * Returns the locally trusted directories where VOMS trust information (being
   * VOMS server certificates or LSC files) are searched for.
   * 
   * @return a {@link List} of local paths
   */
  public List getLocalTrustedDirectories();

  /**
   * Returns the list of VOMS Attribute Authority certificates held in this
   * {@link VOMSTrustStore}.
   * 
   * @return the collection of VOMS Attribute Authority certificates held in
   *         this {@link VOMSTrustStore}, an empty list if no certificate was
   *         found.
   */
  public List getLocalAACertificates();

  /**
   * Returns the VOMS Attribute Authority certificate held in this
   * {@link VOMSTrustStore} whose subject matches the subject passed as
   * argument.
   * 
   * @param aaCertSubject
   *          a certificate subject
   * @return the VOMS AA {@link X509Certificate} that matches the subject passed
   *         as argument or null if no matching certificate is found in this
   *         store
   */
  public X509Certificate getAACertificateBySubject(X500Principal aaCertSubject);

  /**
   * Returns the LSC information held in this {@link VOMSTrustStore} for the vo
   * and hostname passed as arguments.
   * 
   * @param voName
   *          the name of the VO for which the LSC applies
   * @param hostname
   *          the name of the host for which the LSC applies
   * @return a {@link LSCInfo} object, or null if no LSC matching the arguments
   *         was found
   */
  public LSCInfo getLSC(String voName, String hostname);

  /**
   * Returns all the LSC information held in this {@link VOMSTrustStore}. The
   * returned {@link Map} is keyed by VO name.
   * 
   * @return a possibly empty map {@link LSCInfo} objects
   */
  public Map> getAllLSCInfo();

  /**
   * Loads trust information from the sources configured for this trust store.
   */
  public void loadTrustInformation();

  /**
   * Sets a {@link VOMSTrustStoreStatusListener} that is notified of events
   * related to this VOMS trust store
   * 
   * @param statusListener
   *          the status listener that will be notified
   */
  public void setStatusListener(VOMSTrustStoreStatusListener statusListener);
}