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OAuth 2.0 SDK with OpenID Connection extensions for developing client and server applications.
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/*
 * oauth2-oidc-sdk
 *
 * Copyright 2012-2016, Connect2id Ltd and contributors.
 *
 * 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 com.nimbusds.oauth2.sdk.assertions;


import com.nimbusds.oauth2.sdk.id.Audience;
import com.nimbusds.oauth2.sdk.id.Identifier;
import com.nimbusds.oauth2.sdk.id.Issuer;
import com.nimbusds.oauth2.sdk.id.Subject;
import com.nimbusds.oauth2.sdk.util.CollectionUtils;

import java.util.Date;
import java.util.List;
import java.util.Objects;


/**
 * Common assertion details used in JWT bearer assertions and SAML 2.0 bearer
 * assertions.
 *
 * Related specifications:
 *
 * 

 *     Assertion Framework for OAuth 2.0 Client Authentication and
 *         Authorization Grants (RFC 7521)
 * 
 */
public abstract class AssertionDetails {
	

	/**
	 * The issuer (required).
	 */
	private final Issuer issuer;


	/**
	 * The subject (required).
	 */
	private final Subject subject;


	/**
	 * The audience that this assertion is intended for (required).
	 */
	private final List audience;


	/**
	 * The time at which this assertion was issued (optional).
	 */
	private final Date iat;


	/**
	 * The expiration time that limits the time window during which the
	 * assertion can be used (required).
	 */
	private final Date exp;


	/**
	 * Unique identifier for the assertion (optional). The identifier may
	 * be used by implementations requiring message de-duplication for
	 * one-time use assertions.
	 */
	private final Identifier id;


	/**
	 * Creates a new assertion details instance.
	 *
	 * @param issuer   The issuer. Must not be {@code null}.
	 * @param subject  The subject. Must not be {@code null}.
	 * @param audience The audience, typically including the URI of the
	 *                 authorisation server's token endpoint. Must not be
	 *                 {@code null}.
	 * @param exp      The expiration time. Must not be {@code null}.
	 * @param iat      The time at which the assertion was issued,
	 *                 {@code null} if not specified.
	 * @param id       Unique identifier for the assertion, {@code null} if
	 *                 not specified.
	 */
	public AssertionDetails(final Issuer issuer,
				final Subject subject,
				final List audience,
				final Date iat,
				final Date exp,
				final Identifier id) {

		this.issuer = Objects.requireNonNull(issuer);
		this.subject = Objects.requireNonNull(subject);

		if (CollectionUtils.isEmpty(audience))
			throw new IllegalArgumentException("The audience must not be null or empty");
		this.audience = audience;

		this.exp = Objects.requireNonNull(exp);
		this.iat = iat;
		this.id = id;
	}
	
	
	/**
	 * Returns the issuer.
	 *
	 * @return The issuer.
	 */
	public Issuer getIssuer() {
		
		return issuer;
	}
	
	
	/**
	 * Returns the subject.
	 *
	 * @return The subject.
	 */
	public Subject getSubject() {
		
		return subject;
	}
	
	
	/**
	 * Returns the audience.
	 *
	 * @return The audience, typically including the URI of the
	 *         authorisation server's token endpoint.
	 */
	public List getAudience() {
		
		return audience;
	}
	
	
	/**
	 * Returns the expiration time.
	 *
	 * @return The expiration time.
	 */
	public Date getExpirationTime() {
		
		return exp;
	}
	
	
	/**
	 * Returns the optional issue time.
	 *
	 * @return The issue time, {@code null} if not specified.
	 */
	public Date getIssueTime() {
		
		return iat;
	}
	
	
	/**
	 * Returns the optional assertion identifier.
	 *
	 * @return The identifier, {@code null} if not specified.
	 */
	public Identifier getID() {
		
		return id;
	}
}