| /* |
| * Copyright (c) 1998, 2007, 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 |
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| */ |
| |
| |
| package com.sun.jmx.snmp; |
| |
| |
| |
| |
| /** |
| * Defines the interface of the object in charge of encoding and decoding SNMP packets. |
| * <P> |
| * You will not usually need to use this interface, except if you |
| * decide to replace the default implementation <CODE>SnmpPduFactoryBER</CODE>. |
| * <P> |
| * An <CODE>SnmpPduFactory</CODE> object is attached to an |
| * {@link com.sun.jmx.snmp.daemon.SnmpAdaptorServer SNMP protocol adaptor} |
| * or an {@link com.sun.jmx.snmp.SnmpPeer SnmpPeer}. |
| * It is used each time an SNMP packet needs to be encoded or decoded. |
| * <BR>{@link com.sun.jmx.snmp.SnmpPduFactoryBER SnmpPduFactoryBER} is the default |
| * implementation. |
| * It simply applies the standard ASN.1 encoding and decoding |
| * on the bytes of the SNMP packet. |
| * <P> |
| * It's possible to implement your own <CODE>SnmpPduFactory</CODE> |
| * object and to add authentication and/or encryption to the |
| * default encoding/decoding process. |
| * |
| * <p><b>This API is a Sun Microsystems internal API and is subject |
| * to change without notice.</b></p> |
| * @see SnmpPduFactory |
| * @see SnmpPduPacket |
| * @see SnmpMessage |
| * |
| */ |
| |
| public interface SnmpPduFactory { |
| |
| /** |
| * Decodes the specified <CODE>SnmpMsg</CODE> and returns the |
| * resulting <CODE>SnmpPdu</CODE>. If this method returns |
| * <CODE>null</CODE>, the message will be considered unsafe |
| * and will be dropped. |
| * |
| * @param msg The <CODE>SnmpMsg</CODE> to be decoded. |
| * @return Null or a fully initialized <CODE>SnmpPdu</CODE>. |
| * @exception SnmpStatusException If the encoding is invalid. |
| * |
| * @since 1.5 |
| */ |
| public SnmpPdu decodeSnmpPdu(SnmpMsg msg) throws SnmpStatusException ; |
| |
| /** |
| * Encodes the specified <CODE>SnmpPdu</CODE> and |
| * returns the resulting <CODE>SnmpMsg</CODE>. If this |
| * method returns null, the specified <CODE>SnmpPdu</CODE> |
| * will be dropped and the current SNMP request will be |
| * aborted. |
| * |
| * @param p The <CODE>SnmpPdu</CODE> to be encoded. |
| * @param maxDataLength The size limit of the resulting encoding. |
| * @return Null or a fully encoded <CODE>SnmpMsg</CODE>. |
| * @exception SnmpStatusException If <CODE>pdu</CODE> contains |
| * illegal values and cannot be encoded. |
| * @exception SnmpTooBigException If the resulting encoding does not |
| * fit into <CODE>maxPktSize</CODE> bytes. |
| * |
| * @since 1.5 |
| */ |
| public SnmpMsg encodeSnmpPdu(SnmpPdu p, int maxDataLength) |
| throws SnmpStatusException, SnmpTooBigException ; |
| } |