/*
 * 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.sshd.client.auth.pubkey;

import java.security.KeyPair;
import java.util.Iterator;

import org.apache.sshd.client.session.ClientSession;
import org.apache.sshd.common.signature.SignatureFactoriesManager;

/**
 * @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a>
 */
public class SessionKeyPairIterator extends AbstractKeyPairIterator<KeyPairIdentity> {
    private final SignatureFactoriesManager signatureFactories;
    private final Iterator<KeyPair> keys;

    public SessionKeyPairIterator(ClientSession session, SignatureFactoriesManager signatureFactories, Iterator<KeyPair> keys) {
        super(session);
        this.signatureFactories = signatureFactories;   // OK if null
        this.keys = keys;   // OK if null
    }

    @Override
    public boolean hasNext() {
        return (keys != null) && keys.hasNext();
    }

    @Override
    public KeyPairIdentity next() {
        return new KeyPairIdentity(signatureFactories, getClientSession(), keys.next());
    }
}
