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137 lines
3.8 KiB
137 lines
3.8 KiB
/*
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* Copyright (c) 2001, 2006, 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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package com.sun.jmx.snmp.internal;
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import java.util.Hashtable;
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import com.sun.jmx.snmp.SnmpEngineId;
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import com.sun.jmx.snmp.SnmpUnknownModelLcdException;
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import com.sun.jmx.snmp.SnmpUnknownSubSystemException;
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/**
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* Class to extend in order to develop a customized Local Configuration Datastore. The Lcd is used by the <CODE>SnmpEngine</CODE> to store and retrieve data.
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*<P> <CODE>SnmpLcd</CODE> manages the Lcds needed by every {@link com.sun.jmx.snmp.internal.SnmpModel SnmpModel}. It is possible to add and remove {@link com.sun.jmx.snmp.internal.SnmpModelLcd SnmpModelLcd}.</P>
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* <p><b>This API is a Sun Microsystems internal API and is subject
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* to change without notice.</b></p>
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* @since 1.5
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*/
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public abstract class SnmpLcd {
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class SubSysLcdManager {
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private Hashtable<Integer, SnmpModelLcd> models =
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new Hashtable<Integer, SnmpModelLcd>();
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public void addModelLcd(int id,
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SnmpModelLcd usmlcd) {
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models.put(new Integer(id), usmlcd);
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}
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public SnmpModelLcd getModelLcd(int id) {
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return models.get(new Integer(id));
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}
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public SnmpModelLcd removeModelLcd(int id) {
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return models.remove(new Integer(id));
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}
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}
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private Hashtable<SnmpSubSystem, SubSysLcdManager> subs =
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new Hashtable<SnmpSubSystem, SubSysLcdManager>();
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/**
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* Returns the number of time the engine rebooted.
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* @return The number of reboots or -1 if the information is not present in the Lcd.
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*/
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public abstract int getEngineBoots();
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/**
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* Returns the engine Id located in the Lcd.
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* @return The engine Id or null if the information is not present in the Lcd.
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*/
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public abstract String getEngineId();
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/**
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* Persists the number of reboots.
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* @param i Reboot number.
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*/
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public abstract void storeEngineBoots(int i);
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/**
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* Persists the engine Id.
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* @param id The engine Id.
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*/
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public abstract void storeEngineId(SnmpEngineId id);
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/**
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* Adds an Lcd model.
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* @param sys The subsytem managing the model.
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* @param id The model Id.
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* @param lcd The Lcd model.
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*/
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public void addModelLcd(SnmpSubSystem sys,
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int id,
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SnmpModelLcd lcd) {
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SubSysLcdManager subsys = subs.get(sys);
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if( subsys == null ) {
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subsys = new SubSysLcdManager();
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subs.put(sys, subsys);
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}
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subsys.addModelLcd(id, lcd);
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}
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/**
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* Removes an Lcd model.
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* @param sys The subsytem managing the model.
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* @param id The model Id.
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*/
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public void removeModelLcd(SnmpSubSystem sys,
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int id)
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throws SnmpUnknownModelLcdException, SnmpUnknownSubSystemException {
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SubSysLcdManager subsys = subs.get(sys);
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if( subsys != null ) {
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SnmpModelLcd lcd = subsys.removeModelLcd(id);
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if(lcd == null) {
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throw new SnmpUnknownModelLcdException("Model : " + id);
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}
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}
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else
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throw new SnmpUnknownSubSystemException(sys.toString());
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}
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/**
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* Gets an Lcd model.
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* @param sys The subsytem managing the model
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* @param id The model Id.
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* @return The Lcd model or null if no Lcd model were found.
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*/
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public SnmpModelLcd getModelLcd(SnmpSubSystem sys,
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int id) {
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SubSysLcdManager subsys = subs.get(sys);
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if(subsys == null) return null;
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return subsys.getModelLcd(id);
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}
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}
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