/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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.apache.cxf.rs.security.oauth2.tokens.hawk;

import java.io.Serializable;
import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.Set;

public class NonceHistory implements Serializable {

    private static final long serialVersionUID = -6404833046910698956L;

    private final long requestTimeDelta;
    private final Set<Nonce> nonceList = Collections.synchronizedSet(new LinkedHashSet<Nonce>());

    public NonceHistory(long requestTimeDelta, Nonce nonce) {
        this.requestTimeDelta = requestTimeDelta;
        nonceList.add(nonce);
    }

    public boolean addNonce(Nonce nonce) {
        return nonceList.add(nonce);
    }

    public long getRequestTimeDelta() {
        return requestTimeDelta;
    }

    public Set<Nonce> getNonces() {
        return Collections.unmodifiableSet(nonceList);
    }
    
    

}