| /* |
| * Copyright (c) 1998, 2006, 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. |
| */ |
| |
| |
| package com.sun.jmx.snmp.daemon; |
| |
| |
| |
| // java import |
| // |
| import java.util.Enumeration; |
| import java.util.Vector; |
| import java.util.logging.Level; |
| // jmx imports |
| // |
| import com.sun.jmx.snmp.SnmpPdu; |
| import com.sun.jmx.snmp.SnmpVarBind; |
| import com.sun.jmx.snmp.SnmpOid; |
| import com.sun.jmx.snmp.SnmpValue; |
| import com.sun.jmx.snmp.SnmpDefinitions; |
| import com.sun.jmx.snmp.SnmpStatusException; |
| import com.sun.jmx.snmp.SnmpEngine; |
| // SNMP Runtime import |
| // |
| import static com.sun.jmx.defaults.JmxProperties.SNMP_ADAPTOR_LOGGER; |
| import com.sun.jmx.snmp.agent.SnmpMibAgent; |
| import com.sun.jmx.snmp.agent.SnmpMibRequest; |
| import com.sun.jmx.snmp.ThreadContext; |
| import com.sun.jmx.snmp.daemon.SnmpAdaptorServer; |
| import com.sun.jmx.snmp.internal.SnmpIncomingRequest; |
| import com.sun.jmx.snmp.ThreadContext; |
| |
| class SnmpSubBulkRequestHandler extends SnmpSubRequestHandler { |
| private SnmpAdaptorServer server = null; |
| |
| /** |
| * The constuctor initialize the subrequest with the whole varbind list contained |
| * in the original request. |
| */ |
| protected SnmpSubBulkRequestHandler(SnmpEngine engine, |
| SnmpAdaptorServer server, |
| SnmpIncomingRequest incRequest, |
| SnmpMibAgent agent, |
| SnmpPdu req, |
| int nonRepeat, |
| int maxRepeat, |
| int R) { |
| super(engine, incRequest, agent, req); |
| init(server, req, nonRepeat, maxRepeat, R); |
| } |
| |
| /** |
| * The constuctor initialize the subrequest with the whole varbind list contained |
| * in the original request. |
| */ |
| protected SnmpSubBulkRequestHandler(SnmpAdaptorServer server, |
| SnmpMibAgent agent, |
| SnmpPdu req, |
| int nonRepeat, |
| int maxRepeat, |
| int R) { |
| super(agent, req); |
| init(server, req, nonRepeat, maxRepeat, R); |
| } |
| |
| public void run() { |
| |
| size= varBind.size(); |
| |
| try { |
| // Invoke a getBulk operation |
| // |
| /* NPCTE fix for bugId 4492741, esc 0, 16-August-2001 */ |
| final ThreadContext oldContext = |
| ThreadContext.push("SnmpUserData",data); |
| try { |
| if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINER)) { |
| SNMP_ADAPTOR_LOGGER.logp(Level.FINER, SnmpSubRequestHandler.class.getName(), |
| "run", "[" + Thread.currentThread() + |
| "]:getBulk operation on " + agent.getMibName()); |
| } |
| agent.getBulk(createMibRequest(varBind,version,data), |
| nonRepeat, maxRepeat); |
| } finally { |
| ThreadContext.restore(oldContext); |
| } |
| /* end of NPCTE fix for bugId 4492741 */ |
| |
| } catch(SnmpStatusException x) { |
| errorStatus = x.getStatus() ; |
| errorIndex= x.getErrorIndex(); |
| if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINEST)) { |
| SNMP_ADAPTOR_LOGGER.logp(Level.FINEST, SnmpSubRequestHandler.class.getName(), |
| "run", "[" + Thread.currentThread() + |
| "]:an Snmp error occured during the operation", x); |
| } |
| } |
| catch(Exception x) { |
| errorStatus = SnmpDefinitions.snmpRspGenErr ; |
| if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINEST)) { |
| SNMP_ADAPTOR_LOGGER.logp(Level.FINEST, SnmpSubRequestHandler.class.getName(), |
| "run", "[" + Thread.currentThread() + |
| "]:a generic error occured during the operation", x); |
| } |
| } |
| if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINER)) { |
| SNMP_ADAPTOR_LOGGER.logp(Level.FINER, SnmpSubRequestHandler.class.getName(), |
| "run", "[" + Thread.currentThread() + |
| "]:operation completed"); |
| } |
| } |
| |
| private void init(SnmpAdaptorServer server, |
| SnmpPdu req, |
| int nonRepeat, |
| int maxRepeat, |
| int R) { |
| this.server = server; |
| this.nonRepeat= nonRepeat; |
| this.maxRepeat= maxRepeat; |
| this.globalR= R; |
| |
| final int max= translation.length; |
| final SnmpVarBind[] list= req.varBindList; |
| final NonSyncVector<SnmpVarBind> nonSyncVarBind = |
| ((NonSyncVector<SnmpVarBind>)varBind); |
| for(int i=0; i < max; i++) { |
| translation[i]= i; |
| // we need to allocate a new SnmpVarBind. Otherwise the first |
| // sub request will modify the list... |
| // |
| final SnmpVarBind newVarBind = |
| new SnmpVarBind(list[i].oid, list[i].value); |
| nonSyncVarBind.addNonSyncElement(newVarBind); |
| } |
| } |
| |
| /** |
| * The method updates find out which element to use at update time. Handle oid overlapping as well |
| */ |
| private SnmpVarBind findVarBind(SnmpVarBind element, |
| SnmpVarBind result) { |
| |
| if (element == null) return null; |
| |
| if (result.oid == null) { |
| return element; |
| } |
| |
| if (element.value == SnmpVarBind.endOfMibView) return result; |
| |
| if (result.value == SnmpVarBind.endOfMibView) return element; |
| |
| final SnmpValue val = result.value; |
| |
| int comp = element.oid.compareTo(result.oid); |
| if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINER)) { |
| SNMP_ADAPTOR_LOGGER.logp(Level.FINER, SnmpSubRequestHandler.class.getName(), |
| "findVarBind","Comparing OID element : " + element.oid + |
| " with result : " + result.oid); |
| SNMP_ADAPTOR_LOGGER.logp(Level.FINER, SnmpSubRequestHandler.class.getName(), |
| "findVarBind","Values element : " + element.value + |
| " result : " + result.value); |
| } |
| if (comp < 0) { |
| // Take the smallest (lexicographically) |
| // |
| return element; |
| } |
| else { |
| if(comp == 0) { |
| // Must compare agent used for reply |
| // Take the deeper within the reply |
| if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINER)) { |
| SNMP_ADAPTOR_LOGGER.logp(Level.FINER, SnmpSubRequestHandler.class.getName(), |
| "findVarBind"," oid overlapping. Oid : " + |
| element.oid + "value :" + element.value); |
| SNMP_ADAPTOR_LOGGER.logp(Level.FINER, SnmpSubRequestHandler.class.getName(), |
| "findVarBind","Already present varBind : " + |
| result); |
| } |
| SnmpOid oid = result.oid; |
| SnmpMibAgent deeperAgent = server.getAgentMib(oid); |
| |
| if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINER)) { |
| SNMP_ADAPTOR_LOGGER.logp(Level.FINER, SnmpSubRequestHandler.class.getName(), |
| "findVarBind","Deeper agent : " + deeperAgent); |
| } |
| if(deeperAgent == agent) { |
| if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINER)) { |
| SNMP_ADAPTOR_LOGGER.logp(Level.FINER, SnmpSubRequestHandler.class.getName(), |
| "findVarBind","The current agent is the deeper one. Update the value with the current one"); |
| } |
| return element; |
| } else { |
| if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINER)) { |
| SNMP_ADAPTOR_LOGGER.logp(Level.FINER, SnmpSubRequestHandler.class.getName(), |
| "findVarBind","The current agent is not the deeper one. return the previous one."); |
| } |
| return result; |
| } |
| |
| /* |
| Vector v = new Vector(); |
| SnmpMibRequest getReq = createMibRequest(v, |
| version, |
| null); |
| SnmpVarBind realValue = new SnmpVarBind(oid); |
| getReq.addVarBind(realValue); |
| try { |
| deeperAgent.get(getReq); |
| } catch(SnmpStatusException e) { |
| e.printStackTrace(); |
| } |
| |
| if(isDebugOn()) |
| trace("findVarBind", "Biggest priority value is : " + |
| realValue.value); |
| |
| return realValue; |
| */ |
| |
| } |
| else { |
| if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINER)) { |
| SNMP_ADAPTOR_LOGGER.logp(Level.FINER, SnmpSubRequestHandler.class.getName(), |
| "findVarBind","The right varBind is the already present one"); |
| } |
| return result; |
| } |
| } |
| } |
| /** |
| * The method updates a given var bind list with the result of a |
| * previsouly invoked operation. |
| * Prior to calling the method, one must make sure that the operation was |
| * successful. As such the method getErrorIndex or getErrorStatus should be |
| * called. |
| */ |
| protected void updateResult(SnmpVarBind[] result) { |
| // we can assume that the run method is over ... |
| // |
| |
| final Enumeration e= varBind.elements(); |
| final int max= result.length; |
| |
| // First go through all the values once ... |
| for(int i=0; i < size; i++) { |
| // May be we should control the position ... |
| // |
| if (e.hasMoreElements() == false) |
| return; |
| |
| // bugId 4641694: must check position in order to avoid |
| // ArrayIndexOutOfBoundException |
| final int pos=translation[i]; |
| if (pos >= max) { |
| if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINEST)) { |
| SNMP_ADAPTOR_LOGGER.logp(Level.FINEST, SnmpSubRequestHandler.class.getName(), |
| "updateResult","Position '"+pos+"' is out of bound..."); |
| } |
| continue; |
| } |
| |
| final SnmpVarBind element= (SnmpVarBind) e.nextElement(); |
| |
| if (element == null) continue; |
| if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINER)) { |
| SNMP_ADAPTOR_LOGGER.logp(Level.FINER, SnmpSubRequestHandler.class.getName(), |
| "updateResult","Non repeaters Current element : " + |
| element + " from agent : " + agent); |
| } |
| final SnmpVarBind res = findVarBind(element,result[pos]); |
| |
| if(res == null) continue; |
| |
| result[pos] = res; |
| } |
| |
| // Now update the values which have been repeated |
| // more than once. |
| int localR= size - nonRepeat; |
| for (int i = 2 ; i <= maxRepeat ; i++) { |
| for (int r = 0 ; r < localR ; r++) { |
| final int pos = (i-1)* globalR + translation[nonRepeat + r] ; |
| if (pos >= max) |
| return; |
| if (e.hasMoreElements() ==false) |
| return; |
| final SnmpVarBind element= (SnmpVarBind) e.nextElement(); |
| |
| if (element == null) continue; |
| if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINER)) { |
| SNMP_ADAPTOR_LOGGER.logp(Level.FINER, SnmpSubRequestHandler.class.getName(), |
| "updateResult","Repeaters Current element : " + |
| element + " from agent : " + agent); |
| } |
| final SnmpVarBind res = findVarBind(element, result[pos]); |
| |
| if(res == null) continue; |
| |
| result[pos] = res; |
| } |
| } |
| } |
| |
| // PROTECTED VARIABLES |
| //------------------ |
| |
| /** |
| * Specific to the sub request |
| */ |
| protected int nonRepeat=0; |
| |
| protected int maxRepeat=0; |
| |
| /** |
| * R as defined in RCF 1902 for the global request the sub-request is associated to. |
| */ |
| protected int globalR=0; |
| |
| protected int size=0; |
| } |
