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jeremybenn |
/* ReplyHeader.java --
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Copyright (C) 2005 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.CORBA.GIOP;
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import gnu.CORBA.CDR.AbstractCdrInput;
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import gnu.CORBA.CDR.AbstractCdrOutput;
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/**
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* The header of the standard reply.
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*
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* @author Audrius Meskauskas (AudriusA@Bioinformatics.org)
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*/
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public abstract class ReplyHeader
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extends ContextHandler
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{
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/**
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* Reply status, if no exception occured.
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*/
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public static final int NO_EXCEPTION = 0;
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/**
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* Reply status, user exception.
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*/
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public static final int USER_EXCEPTION = 1;
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/**
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* Reply status, system exception.
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*/
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public static final int SYSTEM_EXCEPTION = 2;
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/**
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* Reply status, if the client ORB must re - send the request to another
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* destination. The body contains IOR.
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*/
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public static final int LOCATION_FORWARD = 3;
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/**
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* Reply status, indicating that the target has permanently changed the
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* address to the supplied IOR.
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*/
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public static final int LOCATION_FORWARD_PERM = 4;
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/**
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* Reply status, indicating, that the ORB requires to resend the object
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* address in the required addressing mode, contained as the reply body.
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*/
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public static final int NEEDS_ADDRESSING_MODE = 5;
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/**
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* The status of this reply, holds one of the reply status constants.
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*/
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public int reply_status;
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/**
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* The Id of request into response of which this reply has been sent.
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*/
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public int request_id;
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/**
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* Return the message status as a string.
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*/
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public String getStatusString()
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{
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switch (reply_status)
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{
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case NO_EXCEPTION:
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return "ok";
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case USER_EXCEPTION:
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return "user exception";
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case SYSTEM_EXCEPTION:
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return "system exception";
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case LOCATION_FORWARD:
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return "moved";
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default:
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return null;
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}
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}
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/**
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* Reads the header from the stream.
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*
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* @param in a stream to read from.
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*/
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public abstract void read(AbstractCdrInput in);
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/**
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* Returns a short string representation.
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*
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* @return a string representation.
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*/
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public String toString()
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{
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String status = getStatusString();
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if (status == null)
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status = "status " + reply_status;
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return request_id + ", " + status;
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}
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/**
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* Writes the header to the stream.
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*
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* @param out a stream to write into.
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*/
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public abstract void write(AbstractCdrOutput out);
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}
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