Java Code Examples for com.sun.jmx.snmp.SnmpStatusException#noSuchInstance()

/**
 * Get the value of a scalar variable
 */
public SnmpValue get(long var, Object data)
    throws SnmpStatusException {
    switch((int)var) {
        case 3:
            return new SnmpInt(node.getJvmMemManagerState());

        case 2:
            return new SnmpString(node.getJvmMemManagerName());

        case 1:
            throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
        default:
            break;
    }
    throw new SnmpStatusException(SnmpStatusException.noSuchObject);
}
 

protected SnmpOid getNextOid(SnmpOid oid, Object userData)
    throws SnmpStatusException {
    final boolean dbg = log.isDebugOn();
    try {
        if (dbg) log.debug("getNextOid", "previous=" + oid);

        // Get the data handler.
        //
        SnmpTableHandler handler = getHandler(userData);
        if (handler == null) {
            // This should never happen.
            // If we get here it's a bug.
            //
            if (dbg) log.debug("getNextOid", "handler is null!");
            throw new
                SnmpStatusException(SnmpStatusException.noSuchInstance);
        }


        // Get the next oid, using the GC filter.
        //
        final SnmpOid next = filter.getNext(handler,oid);
        if (dbg) log.debug("getNextOid", "next=" + next);

        // if next is null: we reached the end of the table.
        //
        if (next == null)
            throw new
                SnmpStatusException(SnmpStatusException.noSuchInstance);

        return next;
    } catch (RuntimeException x) {
        // debug. This should never happen.
        //
        if (dbg) log.debug("getNextOid",x);
        throw x;
    }
}
 

@Override
void findHandlingNode(SnmpVarBind varbind,
                      long[] oid, int depth,
                      SnmpRequestTree handlers)
    throws SnmpStatusException {


    final int length = oid.length;
    SnmpMibNode node = null;

    if (handlers == null)
        throw new SnmpStatusException(SnmpStatusException.snmpRspGenErr);

    if (depth > length) {
        // Nothing is left... the oid is not valid
        throw new SnmpStatusException(SnmpStatusException.noSuchObject);
    } else if (depth == length) {
        // The oid is not complete...
        throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
    } else {
        // Some children variable or subobject is being querried
        // getChild() will raise an exception if no child is found.
        //
        final SnmpMibNode child= getChild(oid[depth]);

        // XXXX zzzz : what about null children?
        //             (variables for nested groups)
        // if child==null, then we're dealing with a variable or
        // a table: we register this node.
        // This behaviour should be overriden in subclasses,
        // in particular in group meta classes: the group
        // meta classes that hold tables should take care
        // of forwarding this call to all the tables involved.
        //
        if (child == null)
            handlers.add(this,depth,varbind);
        else
            child.findHandlingNode(varbind,oid,depth+1,handlers);
    }
}
 

/**
 * Get the value of a scalar variable
 */
public SnmpValue get(long var, Object data)
    throws SnmpStatusException {
    switch((int)var) {
        case 2:
            return new SnmpString(node.getJvmRTBootClassPathItem());

        case 1:
            throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
        default:
            break;
    }
    throw new SnmpStatusException(SnmpStatusException.noSuchObject);
}
 

protected SnmpOid getNextOid(SnmpOid oid, Object userData)
    throws SnmpStatusException {
    final boolean dbg = log.isDebugOn();
    if (dbg) log.debug("getNextOid", "previous=" + oid);


    // Get the data handler.
    //
    SnmpTableHandler handler = getHandler(userData);
    if (handler == null) {
        // This should never happen.
        // If we get here it's a bug.
        //
        if (dbg) log.debug("getNextOid", "handler is null!");
        throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
    }

    // Get the next oid
    //
    final SnmpOid next = handler.getNext(oid);
    if (dbg) log.debug("getNextOid", "next=" + next);

    // if next is null: we reached the end of the table.
    //
    if (next == null)
        throw new SnmpStatusException(SnmpStatusException.noSuchInstance);

    return next;
}
 

/**
 * Get the value of a scalar variable
 */
public SnmpValue get(long var, Object data)
    throws SnmpStatusException {
    switch((int)var) {
        case 2:
            return new SnmpString(node.getJvmRTBootClassPathItem());

        case 1:
            throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
        default:
            break;
    }
    throw new SnmpStatusException(SnmpStatusException.noSuchObject);
}
 

@Override
void findHandlingNode(SnmpVarBind varbind,
                      long[] oid, int depth,
                      SnmpRequestTree handlers)
    throws SnmpStatusException {


    final int length = oid.length;
    SnmpMibNode node = null;

    if (handlers == null)
        throw new SnmpStatusException(SnmpStatusException.snmpRspGenErr);

    if (depth > length) {
        // Nothing is left... the oid is not valid
        throw new SnmpStatusException(SnmpStatusException.noSuchObject);
    } else if (depth == length) {
        // The oid is not complete...
        throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
    } else {
        // Some children variable or subobject is being querried
        // getChild() will raise an exception if no child is found.
        //
        final SnmpMibNode child= getChild(oid[depth]);

        // XXXX zzzz : what about null children?
        //             (variables for nested groups)
        // if child==null, then we're dealing with a variable or
        // a table: we register this node.
        // This behaviour should be overriden in subclasses,
        // in particular in group meta classes: the group
        // meta classes that hold tables should take care
        // of forwarding this call to all the tables involved.
        //
        if (child == null)
            handlers.add(this,depth,varbind);
        else
            child.findHandlingNode(varbind,oid,depth+1,handlers);
    }
}
 

/**
 * Return the name of the attribute corresponding to the SNMP variable identified by "id".
 */
public String getAttributeName(long id)
    throws SnmpStatusException {
    switch((int)id) {
        case 6:
            return "JvmThreadCpuTimeMonitoring";

        case 5:
            return "JvmThreadContentionMonitoring";

        case 4:
            return "JvmThreadTotalStartedCount";

        case 3:
            return "JvmThreadPeakCount";

        case 2:
            return "JvmThreadDaemonCount";

        case 1:
            return "JvmThreadCount";

        case 10: {
            throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
            }

        case 7:
            return "JvmThreadPeakCountReset";

        default:
            break;
    }
    throw new SnmpStatusException(SnmpStatusException.noSuchObject);
}
 

/**
 * Get the value of a scalar variable
 */
public SnmpValue get(long var, Object data)
    throws SnmpStatusException {
    switch((int)var) {
        case 2:
            return new SnmpString(node.getJvmRTClassPathItem());

        case 1:
            throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
        default:
            break;
    }
    throw new SnmpStatusException(SnmpStatusException.noSuchObject);
}
 

/**
 * Get the value of a scalar variable
 */
public SnmpValue get(long var, Object data)
    throws SnmpStatusException {
    switch((int)var) {
        case 2:
            return new SnmpString(node.getJvmRTInputArgsItem());

        case 1:
            throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
        default:
            break;
    }
    throw new SnmpStatusException(SnmpStatusException.noSuchObject);
}
 

protected SnmpOid getNextOid(SnmpOid oid, Object userData)
    throws SnmpStatusException {
    final boolean dbg = log.isDebugOn();
    if (dbg) log.debug("getNextOid", "previous=" + oid);


    // Get the data handler.
    //
    SnmpTableHandler handler = getHandler(userData);
    if (handler == null) {
        // This should never happen.
        // If we get here it's a bug.
        //
        if (dbg) log.debug("getNextOid", "handler is null!");
        throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
    }

    // Get the next oid
    //
    final SnmpOid next = handler.getNext(oid);
    if (dbg) log.debug("*** **** **** **** getNextOid", "next=" + next);

    // if next is null: we reached the end of the table.
    //
    if (next == null)
        throw new SnmpStatusException(SnmpStatusException.noSuchInstance);

    return next;
}
 

public Object getEntry(SnmpOid oid)
    throws SnmpStatusException {
    log.debug("*** **** **** **** getEntry", "oid [" + oid + "]");
    if (oid == null || oid.getLength() != 8) {
        log.debug("getEntry", "Invalid oid [" + oid + "]");
        throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
    }

    // Get the request contextual cache (userData).
    //
    final Map<Object,Object> m = JvmContextFactory.getUserData();

    // Get the handler.
    //
    SnmpTableHandler handler = getHandler(m);

    // handler should never be null.
    //
    if (handler == null || !handler.contains(oid))
        throw new SnmpStatusException(SnmpStatusException.noSuchInstance);

    final JvmThreadInstanceEntryImpl entry = getJvmThreadInstance(m,oid);

    if (entry == null)
        throw new SnmpStatusException(SnmpStatusException.noSuchInstance);

    return entry;
}
 

/**
 * Return the name of the attribute corresponding to the SNMP variable identified by "id".
 */
public String getAttributeName(long id)
    throws SnmpStatusException {
    switch((int)id) {
        case 6:
            return "JvmThreadCpuTimeMonitoring";

        case 5:
            return "JvmThreadContentionMonitoring";

        case 4:
            return "JvmThreadTotalStartedCount";

        case 3:
            return "JvmThreadPeakCount";

        case 2:
            return "JvmThreadDaemonCount";

        case 1:
            return "JvmThreadCount";

        case 10: {
            throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
            }

        case 7:
            return "JvmThreadPeakCountReset";

        default:
            break;
    }
    throw new SnmpStatusException(SnmpStatusException.noSuchObject);
}
 

/**
 * Return the name of the attribute corresponding to the SNMP variable identified by "id".
 */
public String getAttributeName(long id)
    throws SnmpStatusException {
    switch((int)id) {
        case 23: {
            throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
            }

        case 22: {
            throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
            }

        case 21: {
            throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
            }

        case 9:
            return "JvmRTBootClassPathSupport";

        case 20: {
            throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
            }

        case 8:
            return "JvmRTManagementSpecVersion";

        case 7:
            return "JvmRTSpecVersion";

        case 6:
            return "JvmRTSpecVendor";

        case 5:
            return "JvmRTSpecName";

        case 4:
            return "JvmRTVMVersion";

        case 3:
            return "JvmRTVMVendor";

        case 12:
            return "JvmRTStartTimeMs";

        case 11:
            return "JvmRTUptimeMs";

        case 2:
            return "JvmRTVMName";

        case 1:
            return "JvmRTName";

        case 10:
            return "JvmRTInputArgsCount";

        default:
            break;
    }
    throw new SnmpStatusException(SnmpStatusException.noSuchObject);
}
 

@Override
final synchronized void findHandlingNode(SnmpVarBind varbind,
                                         long[] oid, int depth,
                                         SnmpRequestTree handlers)
    throws SnmpStatusException {

    final int  length = oid.length;

    if (handlers == null)
        throw new SnmpStatusException(SnmpStatusException.snmpRspGenErr);

    if (depth >= length)
        throw new SnmpStatusException(SnmpStatusException.noAccess);

    if (oid[depth] != nodeId)
        throw new SnmpStatusException(SnmpStatusException.noAccess);

    if (depth+2 >= length)
        throw new SnmpStatusException(SnmpStatusException.noAccess);

    // Checks that the oid is valid
    // validateOid(oid,depth);

    // Gets the part of the OID that identifies the entry
    final SnmpOid entryoid = new SnmpEntryOid(oid, depth+2);

    // Finds the entry: false means that the entry does not exists
    final Object data = handlers.getUserData();
    final boolean hasEntry = contains(entryoid, data);

    // Fails if the entry is not found and the table does not
    // not support creation.
    // We know that the entry does not exists if (isentry == false).
    if (!hasEntry) {
        if (!handlers.isCreationAllowed()) {
            // we're not doing a set
            throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
        } else if (!isCreationEnabled())
            // we're doing a set but creation is disabled.
            throw new
                SnmpStatusException(SnmpStatusException.snmpRspNoAccess);
    }

    final long   var  = oid[depth+1];

    // Validate the entry id
    if (hasEntry) {
        // The entry already exists - validate the id
        validateVarEntryId(entryoid,var,data);
    }

    // Registers this node for the identified entry.
    //
    if (handlers.isSetRequest() && isRowStatus(entryoid,var,data))

        // We only try to identify the RowStatus for SET operations
        //
        handlers.add(this,depth,entryoid,varbind,(!hasEntry),varbind);

    else
        handlers.add(this,depth,entryoid,varbind,(!hasEntry));
}
 

/**
 * Get the <CODE>SnmpOid</CODE> index of the row that follows
 * the given <CODE>oid</CODE> in the table. The given <CODE>
 * oid</CODE> does not need to be a valid row OID index.
 *
 * <p>
 * @param oid The OID from which the search will begin.
 *
 * @param userData A contextual object containing user-data.
 *        This object is allocated through the <code>
 *        {@link com.sun.jmx.snmp.agent.SnmpUserDataFactory}</code>
 *        for each incoming SNMP request.
 *
 * @return The next <CODE>SnmpOid</CODE> index.
 *
 * @exception SnmpStatusException There is no index following the
 *     specified <CODE>oid</CODE> in the table.
 */
protected SnmpOid getNextOid(SnmpOid oid, Object userData)
    throws SnmpStatusException {

    if (size == 0) {
        throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
    }

    final SnmpOid resOid = oid;

    // Just a simple check to speed up retrieval of last element ...
    //
    // XX SnmpOid last= (SnmpOid) oids.lastElement();
    SnmpOid last= tableoids[tablecount-1];
    if (last.equals(resOid)) {
        // Last element of the table ...
        //
        throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
    }

    // First find the oid. This will allow to speed up retrieval process
    // during smart discovery of table (using the getNext) as the
    // management station will use the valid index returned during a
    // previous getNext ...
    //

    // Returns the position following the position at which resOid
    // is found, or the position at which resOid should be inserted.
    //
    final int newPos = getInsertionPoint(resOid,false);

    // If the position returned is not out of bound, we will find
    // the next element in the array.
    //
    if (newPos > -1 && newPos < size) {
        try {
            // XX last = (SnmpOid) oids.elementAt(newPos);
            last = tableoids[newPos];
        } catch(ArrayIndexOutOfBoundsException e) {
            throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
        }
    } else {
        // We are dealing with the last element of the table ..
        //
        throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
    }


    return last;
}
 

/**
 * Get the value of a scalar variable
 */
public SnmpValue get(long var, Object data)
    throws SnmpStatusException {
    switch((int)var) {
        case 23: {
            throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
            }

        case 22: {
            throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
            }

        case 21: {
            throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
            }

        case 9:
            return new SnmpInt(node.getJvmRTBootClassPathSupport());

        case 20: {
            throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
            }

        case 8:
            return new SnmpString(node.getJvmRTManagementSpecVersion());

        case 7:
            return new SnmpString(node.getJvmRTSpecVersion());

        case 6:
            return new SnmpString(node.getJvmRTSpecVendor());

        case 5:
            return new SnmpString(node.getJvmRTSpecName());

        case 4:
            return new SnmpString(node.getJvmRTVMVersion());

        case 3:
            return new SnmpString(node.getJvmRTVMVendor());

        case 12:
            return new SnmpCounter64(node.getJvmRTStartTimeMs());

        case 11:
            return new SnmpCounter64(node.getJvmRTUptimeMs());

        case 2:
            return new SnmpString(node.getJvmRTVMName());

        case 1:
            return new SnmpString(node.getJvmRTName());

        case 10:
            return new SnmpInt(node.getJvmRTInputArgsCount());

        default:
            break;
    }
    throw new SnmpStatusException(SnmpStatusException.noSuchObject);
}
 

public static int mapGetException(int errorStatus, int version)
    throws SnmpStatusException {

    final int errorCode = errorStatus;
    if (version == SnmpDefinitions.snmpVersionOne)
        return errorCode;

    int mappedErrorCode = errorCode;

    // Now take care of V2 errorCodes that can be stored
    // in the varbind itself:
    if (errorCode ==
        SnmpStatusException.noSuchObject)
        // noSuchObject => noSuchObject
        mappedErrorCode = errorCode;

    else if (errorCode ==
             SnmpStatusException.noSuchInstance)
        // noSuchInstance => noSuchInstance
        mappedErrorCode = errorCode;

    // Now we're going to try to transform every other
    // global code in either noSuchInstance or noSuchObject,
    // so that the get can return a partial result.
    //
    // Only noSuchInstance or noSuchObject can be stored
    // in the varbind itself.
    //

    // According to RFC 1905: noAccess is emitted when the
    // the access is denied because it is not in the MIB view...
    //
    else if (errorCode ==
             SnmpStatusException.noAccess)
        // noAccess => noSuchInstance
        mappedErrorCode = SnmpStatusException.noSuchInstance;

    // According to RFC 1905: (my interpretation because it is not
    // really clear) The specified variable name exists - but the
    // variable does not exists and cannot be created under the
    // present circumstances (probably because the request specifies
    // another variable/value which is incompatible, or because the
    // value of some other variable in the MIB prevents the creation)
    //
    // Note that this error should never be raised in a GET context
    // but who knows?
    //
    else if (errorCode == SnmpStatusException.snmpRspInconsistentName)
        // inconsistentName => noSuchInstance
        mappedErrorCode = SnmpStatusException.noSuchInstance;

    // All the errors comprised between snmpRspWrongType and
    // snmpRspInconsistentValue concern values: so we're going
    // to assume the OID was correct, and reply with noSuchInstance.
    //
    // Note that this error should never be raised in a GET context
    // but who knows?
    //
    else if ((errorCode >= SnmpStatusException.snmpRspWrongType) &&
             (errorCode <= SnmpStatusException.snmpRspInconsistentValue))
        mappedErrorCode = SnmpStatusException.noSuchInstance;

    // We're going to assume the OID was correct, and reply
    // with noSuchInstance.
    //
    else if (errorCode == SnmpStatusException.readOnly)
        mappedErrorCode = SnmpStatusException.noSuchInstance;

    // For all other errors but genErr, we're going to reply with
    // noSuchObject
    //
    else if (errorCode != SnmpStatusException.snmpRspAuthorizationError &&
             errorCode != SnmpStatusException.snmpRspGenErr)
        mappedErrorCode = SnmpStatusException.noSuchObject;

    // Only genErr will abort the GET and be returned as global
    // error.
    //
    return mappedErrorCode;

}
 

/**
 * Return the first entry OID registered in the table.
 *
 * <p>
 * @param userData A contextual object containing user-data.
 *        This object is allocated through the <code>
 *        {@link com.sun.jmx.snmp.agent.SnmpUserDataFactory}</code>
 *        for each incoming SNMP request.
 *
 * @return The <CODE>SnmpOid</CODE> of the first entry in the table.
 *
 * @exception SnmpStatusException If the table is empty.
 */
protected SnmpOid getNextOid(Object userData)
    throws SnmpStatusException {
    if (size == 0) {
        throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
    }
    // XX return (SnmpOid) oids.firstElement();
    return tableoids[0];
}
 

/**
 * Get the ObjectName of the entry corresponding to the
 * specified rowOid.
 * The result of this method is only meaningful if
 * isRegistrationRequired() yields true.
 *
 * <p>
 * @param rowOid The <CODE>SnmpOid</CODE> identifying the table
 *        row whose ObjectName we want to retrieve.
 *
 * @return The object name of the entry.
 *
 * @exception SnmpStatusException There is no entry with the specified
 *      <code>rowOid</code> in the table.
 */
public synchronized ObjectName getEntryName(SnmpOid rowOid)
    throws SnmpStatusException {
    int pos = findObject(rowOid);
    if (entrynames == null) return null;
    if (pos == -1 || pos >= entrynames.size())
        throw new SnmpStatusException(SnmpStatusException.noSuchInstance);
    return entrynames.elementAt(pos);
}