/*************************************************************************
 *                                                                       *
 *  SignServer: The OpenSource Automated Signing Server                  *
 *                                                                       *
 *  This software is free software; you can redistribute it and/or       *
 *  modify it under the terms of the GNU Lesser General Public           *
 *  License as published by the Free Software Foundation; either         *
 *  version 2.1 of the License, or any later version.                    *
 *                                                                       *
 *  See terms of license at gnu.org.                                     *
 *                                                                       *
 *************************************************************************/
package org.signserver.groupkeyservice.common;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;

import org.signserver.common.ProcessResponse;
import org.signserver.common.RequestAndResponseManager;

/**
 * SwitchEncKeyResponse is given by a GroupKeyService processing a SwitchEncKeyRequest if
 * all the processing was successful.
 * 
 * @author phive
 * @author Philip Vendil
 * @version $Id: SwitchEncKeyResponse.java 1829 2011-08-10 11:50:45Z netmackan $
 */
public class SwitchEncKeyResponse extends ProcessResponse {

    private static final long serialVersionUID = 1L;
    private String newKeyIndex;

    /**
     * Default constructor used during serialization
     */
    public SwitchEncKeyResponse() {
    }

    /**
     * Main constructor for the FetchKeyResponse
     * @param newKeyIndex the index of the new encryption key used.
     */
    public SwitchEncKeyResponse(String newKeyIndex) {
        this.newKeyIndex = newKeyIndex;
    }

    /**
     * @return the index of the new encryption key used.
     */
    public String getNewKeyIndex() {
        return newKeyIndex;
    }

    public void parse(DataInput in) throws IOException {
        in.readInt();
        int stringLen = in.readInt();
        byte[] stringData = new byte[stringLen];
        in.readFully(stringData);
        this.newKeyIndex = new String(stringData, "UTF-8");
    }

    public void serialize(DataOutput out) throws IOException {
        out.writeInt(RequestAndResponseManager.RESPONSETYPE_GKS_SWITCHENCKEY);
        byte[] stringData = newKeyIndex.getBytes("UTF-8");
        out.writeInt(stringData.length);
        out.write(stringData);
    }
}