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273 lines
10 KiB
273 lines
10 KiB
/*
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* Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package com.sun.jmx.snmp.daemon;
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// java imports
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//
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import java.util.logging.Level;
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import java.util.Vector;
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// jmx imports
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//
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import com.sun.jmx.snmp.SnmpEngine;
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import com.sun.jmx.snmp.SnmpPdu;
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import com.sun.jmx.snmp.SnmpValue;
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import com.sun.jmx.snmp.SnmpVarBind;
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import com.sun.jmx.snmp.SnmpVarBindList;
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import com.sun.jmx.snmp.SnmpOid;
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import com.sun.jmx.snmp.SnmpDefinitions;
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import com.sun.jmx.snmp.SnmpStatusException;
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// SNMP Runtime import
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//
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import static com.sun.jmx.defaults.JmxProperties.SNMP_ADAPTOR_LOGGER;
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import com.sun.jmx.snmp.agent.SnmpMibAgent;
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import com.sun.jmx.snmp.agent.SnmpMibRequest;
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import com.sun.jmx.snmp.daemon.SnmpAdaptorServer;
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import com.sun.jmx.snmp.internal.SnmpIncomingRequest;
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/* NPCTE fix for bugId 4492741, esc 0 */
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import com.sun.jmx.snmp.ThreadContext;
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/* end of NPCTE fix for bugId 4492741 */
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class SnmpSubNextRequestHandler extends SnmpSubRequestHandler {
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private SnmpAdaptorServer server = null;
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/**
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* The constructor initialize the subrequest with the whole varbind
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* list contained in the original request.
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*/
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protected SnmpSubNextRequestHandler(SnmpAdaptorServer server,
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SnmpMibAgent agent,
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SnmpPdu req) {
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super(agent,req);
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init(req, server);
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}
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protected SnmpSubNextRequestHandler(SnmpEngine engine,
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SnmpAdaptorServer server,
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SnmpIncomingRequest incRequest,
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SnmpMibAgent agent,
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SnmpPdu req) {
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super(engine, incRequest, agent, req);
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init(req, server);
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if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINEST)) {
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SNMP_ADAPTOR_LOGGER.logp(Level.FINEST, SnmpSubNextRequestHandler.class.getName(),
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"SnmpSubNextRequestHandler", "Constructor : " + this);
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}
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}
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private void init(SnmpPdu req, SnmpAdaptorServer server) {
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this.server = server;
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// The translation table is easy in this case ...
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//
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final int max= translation.length;
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final SnmpVarBind[] list= req.varBindList;
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final NonSyncVector<SnmpVarBind> nonSyncVarBind =
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((NonSyncVector<SnmpVarBind>)varBind);
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for(int i=0; i < max; i++) {
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translation[i]= i;
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// we need to allocate a new SnmpVarBind. Otherwise the first
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// sub request will modify the list...
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//
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final SnmpVarBind newVarBind =
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new SnmpVarBind(list[i].oid, list[i].value);
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nonSyncVarBind.addNonSyncElement(newVarBind);
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}
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}
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public void run() {
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try {
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/* NPCTE fix for bugId 4492741, esc 0, 16-August-2001 */
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final ThreadContext oldContext =
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ThreadContext.push("SnmpUserData",data);
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try {
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if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINER)) {
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SNMP_ADAPTOR_LOGGER.logp(Level.FINER, SnmpSubRequestHandler.class.getName(),
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"run", "[" + Thread.currentThread() +
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"]:getNext operation on " + agent.getMibName());
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}
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// Always call with V2. So the merge of the responses will
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// be easier.
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//
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agent.getNext(createMibRequest(varBind, snmpVersionTwo, data));
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} finally {
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ThreadContext.restore(oldContext);
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}
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/* end of NPCTE fix for bugId 4492741 */
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} catch(SnmpStatusException x) {
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errorStatus = x.getStatus() ;
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errorIndex= x.getErrorIndex();
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if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINEST)) {
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SNMP_ADAPTOR_LOGGER.logp(Level.FINEST, SnmpSubRequestHandler.class.getName(),
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"run", "[" + Thread.currentThread() +
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"]:an Snmp error occurred during the operation", x);
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}
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}
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catch(Exception x) {
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errorStatus = SnmpDefinitions.snmpRspGenErr ;
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if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINEST)) {
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SNMP_ADAPTOR_LOGGER.logp(Level.FINEST, SnmpSubRequestHandler.class.getName(),
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"run", "[" + Thread.currentThread() +
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"]:a generic error occurred during the operation", x);
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}
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}
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if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINER)) {
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SNMP_ADAPTOR_LOGGER.logp(Level.FINER, SnmpSubRequestHandler.class.getName(),
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"run", "[" + Thread.currentThread() + "]:operation completed");
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}
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}
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/**
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* The method updates the varbind list of the subrequest.
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*/
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protected void updateRequest(SnmpVarBind var, int pos) {
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if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINEST)) {
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SNMP_ADAPTOR_LOGGER.logp(Level.FINEST, SnmpSubRequestHandler.class.getName(),
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"updateRequest", "Copy :" + var);
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}
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int size= varBind.size();
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translation[size]= pos;
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final SnmpVarBind newVarBind =
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new SnmpVarBind(var.oid, var.value);
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if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINEST)) {
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SNMP_ADAPTOR_LOGGER.logp(Level.FINEST, SnmpSubRequestHandler.class.getName(),
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"updateRequest", "Copied :" + newVarBind);
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}
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varBind.addElement(newVarBind);
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}
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/**
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* The method updates a given var bind list with the result of a
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* previsouly invoked operation.
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* Prior to calling the method, one must make sure that the operation was
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* successful. As such the method getErrorIndex or getErrorStatus should be
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* called.
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*/
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protected void updateResult(SnmpVarBind[] result) {
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final int max=varBind.size();
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for(int i= 0; i< max ; i++) {
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// May be we should control the position ...
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//
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final int index= translation[i];
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final SnmpVarBind elmt=
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(SnmpVarBind)((NonSyncVector)varBind).elementAtNonSync(i);
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final SnmpVarBind vb= result[index];
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if (vb == null) {
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result[index]= elmt;
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/* NPCTE fix for bugid 4381195 esc 0. <J.C.> < 17-Oct-2000> */
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// if ((elmt != null) && (elmt.value == null) &&
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// (version == snmpVersionTwo))
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// elmt.value = SnmpVarBind.endOfMibView;
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/* end of NPCTE fix for bugid 4381195 */
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continue;
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}
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final SnmpValue val= vb.value;
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if ((val == null)|| (val == SnmpVarBind.endOfMibView)){
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/* NPCTE fix for bugid 4381195 esc 0. <J.C.> < 17-Oct-2000> */
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if ((elmt != null) &&
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(elmt.value != SnmpVarBind.endOfMibView))
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result[index]= elmt;
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// else if ((val == null) && (version == snmpVersionTwo))
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// vb.value = SnmpVarBind.endOfMibView;
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continue;
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/* end of NPCTE fix for bugid 4381195 */
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}
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/* NPCTE fix for bugid 4381195 esc 0. <J.C.> < 17-Oct-2000> */
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if (elmt == null) continue;
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/* end of NPCTE fix for bugid 4381195 */
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if (elmt.value == SnmpVarBind.endOfMibView) continue;
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// Now we need to take the smallest oid ...
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//
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int comp = elmt.oid.compareTo(vb.oid);
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if (comp < 0) {
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// Take the smallest (lexicographically)
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//
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result[index]= elmt;
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}
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else {
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if(comp == 0) {
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// Must compare agent used for reply
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// Take the deeper within the reply
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if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINER)) {
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SNMP_ADAPTOR_LOGGER.logp(Level.FINER, SnmpSubRequestHandler.class.getName(),
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"updateResult"," oid overlapping. Oid : " +
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elmt.oid + "value :" + elmt.value);
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SNMP_ADAPTOR_LOGGER.logp(Level.FINER, SnmpSubRequestHandler.class.getName(),
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"updateResult","Already present varBind : " +
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vb);
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}
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SnmpOid oid = vb.oid;
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SnmpMibAgent deeperAgent = server.getAgentMib(oid);
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if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINER)) {
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SNMP_ADAPTOR_LOGGER.logp(Level.FINER, SnmpSubRequestHandler.class.getName(),
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"updateResult","Deeper agent : " + deeperAgent);
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}
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if(deeperAgent == agent) {
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if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINER)) {
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SNMP_ADAPTOR_LOGGER.logp(Level.FINER, SnmpSubRequestHandler.class.getName(),
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"updateResult","The current agent is the deeper one. Update the value with the current one");
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}
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result[index].value = elmt.value;
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}
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/*
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Vector v = new Vector();
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SnmpMibRequest getReq = createMibRequest(v,
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version,
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null);
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SnmpVarBind realValue = new SnmpVarBind(oid);
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getReq.addVarBind(realValue);
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try {
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deeperAgent.get(getReq);
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} catch(SnmpStatusException e) {
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e.printStackTrace();
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}
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if(isDebugOn())
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trace("updateResult", "Biggest priority value is : " +
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realValue.value);
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result[index].value = realValue.value;
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*/
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}
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}
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}
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}
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}
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