/*

 * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/*

 *

 *  (C) Copyright IBM Corp. 1999 All Rights Reserved.

 *  Copyright 1997 The Open Group Research Institute.  All rights reserved.

 */

package sun.security.krb5;

import sun.security.krb5.internal.Krb5;

import sun.security.krb5.internal.KRBError;

public class KrbException extends Exception {

    private static final long serialVersionUID = -4993302876451928596L;

    private int returnCode;

    private KRBError error;

    public KrbException(String s) {

        super(s);

    }

    public KrbException(Throwable cause) {

        super(cause);

    }

    public KrbException(int i) {

        returnCode = i;

    }

    public KrbException(int i, String s) {

        this(s);

        returnCode = i;

    }

    public KrbException(KRBError e) {

        returnCode = e.getErrorCode();

        error = e;

    }

    public KrbException(KRBError e, String s) {

        this(s);

        returnCode = e.getErrorCode();

        error = e;

    }

    public KRBError getError() {

        return error;

    }

    public int returnCode() {

        return returnCode;

    }

    public String returnCodeSymbol() {

        return returnCodeSymbol(returnCode);

    }

    public static String returnCodeSymbol(int i) {

        return "not yet implemented";

    }

    public String returnCodeMessage() {

        return Krb5.getErrorMessage(returnCode);

    }

    public static String errorMessage(int i) {

        return Krb5.getErrorMessage(i);

    }

    public String krbErrorMessage() {

        StringBuilder strbuf = new StringBuilder("krb_error " + returnCode);

        String msg =  getMessage();

        if (msg != null) {

            strbuf.append(" ");

            strbuf.append(msg);

        }

        return strbuf.toString();

    }

    /**

     * Returns messages like:

     * "Integrity check on decrypted field failed (31) - \

     *                         Could not decrypt service ticket"

     * If the error code is 0 then the first half is skipped.

     */

    public String getMessage() {

        StringBuilder message = new StringBuilder();

        int returnCode = returnCode();

        if (returnCode != 0) {

            message.append(returnCodeMessage());

            message.append(" (").append(returnCode()).append(')');

        }

        String consMessage = super.getMessage();

        if (consMessage != null && consMessage.length() != 0) {

            if (returnCode != 0)

                message.append(" - ");

            message.append(consMessage);

        }

        return message.toString();

    }

    public String toString() {

        return ("KrbException: " + getMessage());

    }

    @Override public int hashCode() {

        int result = 17;

        result = 37 * result + returnCode;

        if (error != null) {

            result = 37 * result + error.hashCode();

        }

        return result;

    }

    @Override public boolean equals(Object obj) {

        if (this == obj) {

            return true;

        }

        if (!(obj instanceof KrbException)) {

            return false;

        }

        KrbException other = (KrbException)obj;

        if (returnCode != other.returnCode) {

            return false;

        }

        return (error == null)?(other.error == null):

            (error.equals(other.error));

    }

}