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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.credential;

import eu.emi.security.authn.x509.helpers.PasswordSupplier;
import org.italiangrid.voms.credential.impl.DefaultLoadCredentialsStrategy;

import eu.emi.security.authn.x509.X509Credential;

/**
 * This class implements convenience methods to load X509 user credentials in
 * PEM or PKCS12 format.
 * 
 * @author Andrea Ceccanti
 * 
 */
public class UserCredentials {

  private static LoadCredentialsStrategy loadCredentialsStrategy = new DefaultLoadCredentialsStrategy();

  public static void setLoadCredentialsStrategy(LoadCredentialsStrategy strategy) {

    loadCredentialsStrategy = strategy;
  }

  public static X509Credential loadCredentials() {

    return loadCredentials((char[]) null);
  }

  public static X509Credential loadCredentials(final char[] keyPassword) {

    PasswordSupplier pf = new PasswordSupplier() {

      public char[] getPassword() {

        return keyPassword;
      }
    };

    return loadCredentialsStrategy.loadCredentials(pf);
  }

  public static X509Credential loadCredentials(PasswordSupplier passwordFinder) {

    return loadCredentialsStrategy.loadCredentials(passwordFinder);
  }
}