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/*
* AirportBaseStationConfigurator
*
* Copyright (C) 2000, Jonathan Sevy <jsevy@mcs.drexel.edu>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
package snmp;
import java.util.*;
/**
* Defines the SNMPMessage class as a special case of SNMPSequence. Defines a
* top-level SNMP message, as per the following definitions from RFC 1157 and
* RFC 1901.
RFC1157-SNMP DEFINITIONS
IMPORTS FROM RFC1155-SMI;
-- top-level message
Message ::=
SEQUENCE {
version -- version-1 for this RFC
INTEGER {
version-1(0)
},
community -- community name
OCTET STRING,
data -- e.g., PDUs if trivial
ANY -- authentication is being used
}
-- From RFC 1901:
COMMUNITY-BASED-SNMPv2 DEFINITIONS ::= BEGIN
-- top-level message
Message ::=
SEQUENCE {
version
INTEGER {
version(1) -- modified from RFC 1157
},
community -- community name
OCTET STRING,
data -- PDUs as defined in [4]
ANY
}
}
END
*/
public class SNMPMessage extends SNMPSequence
{
/**
* Create an SNMP message with specified version, community, and pdu.
* Use version = 0 for SNMP version 1, or version = 1 for enhanced capapbilities
* provided through RFC 1157.
*/
public SNMPMessage(int version, String community, SNMPPDU pdu)
throws SNMPBadValueException
{
super();
Vector contents = new Vector();
contents.insertElementAt(new SNMPInteger(version), 0);
contents.insertElementAt(new SNMPOctetString(community), 1);
contents.insertElementAt(pdu, 2);
this.setValue(contents);
}
/**
* Construct an SNMPMessage from a received ASN.1 byte representation.
* @throws SNMPBadValueException Indicates invalid SNMP message encoding supplied.
*/
public SNMPMessage(byte[] enc)
throws SNMPBadValueException
{
super(enc);
}
/**
* Utility method which returns the PDU contained in the SNMP message. The pdu is the third component
* of the sequence, after the version and community name.
*/
public SNMPPDU getPDU()
{
Vector contents = (Vector)(this.getValue());
return (SNMPPDU)(contents.elementAt(2));
}
}
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