I have a MIB contains two tables, main table peerTable and its child table
statTable.
Each row in peerTable represents one session, and each row of statTable is one
statistic of a session. Hence the relationship of peerTable and statTable is
one-to-many.
I have many sessions and want the two tables shared across sessions, and I want
the tree is built like this,
Say session 10 has 3 statistics
peerIndex.10 = 10 # represents session 10
statIndex.10.1 = 1 # represents 1st stat of session 10
statIndex.10.2 = 2 # represents 1st stat of session 10
statIndex.10.3 = 3 # represents 1st stat of session 10
I have followed sample AgentppTestMib.java and created the two tables as
DefaultAgentXSharedMOTable.
The peerTable works ok but I can't add any rows to statTable because master
agent returned error code 259 (AGENTX_INDEX_ALREADY_ALLOCATED) when allocating
index for statTable.
Seems master can't allocate combined index if one of them is already allocated.
For example, peerIndex 10 is created for peerTable, and I want to allocate
index (peerIndx, statIndex) (10,1) for statTable and master rejects it as the
10 is already allocated.
My question is:
Is it AgentX API bug? If not, is it my MIB not compatible with AgentX? If so,
how to implement shared table & child tables?
Below are my codes and MIB:
private MOTable<StatEntryRow,
MOColumn,
MOTableModel<StatEntryRow>> statEntry;
private MOTableModel<StatEntryRow> statEntryModel;
...
@SuppressWarnings(value={"unchecked"})
private void createStatEntry(MOFactory moFactory) {
// Index definition
statEntryIndexes =
new MOTableSubIndex[] {
moFactory.createSubIndex(oidPeerIndex,
SMIConstants.SYNTAX_INTEGER, 1, 1),
moFactory.createSubIndex(oidStatIndex,
SMIConstants.SYNTAX_INTEGER, 1, 1) };
...
// Table model
statEntryModel =
moFactory.createTableModel(oidStatEntry,
statEntryIndex,
statEntryColumns);
((MOMutableTableModel<StatEntryRow>)statEntryModel).setRowFactory(
new StatEntryRowFactory());
statEntry =
moFactory.createTable(oidStatEntry,
statEntryIndex,
statEntryColumns,
statEntryModel);
}
@SuppressWarnings("unchecked")
static class CerillionCcs2MOFactory extends DefaultMOFactory {
public MOTable createTable(OID oid, MOTableIndex indexDef,
MOColumn[] columns) {
if (oidPeerEntry.equals(oid)) {
return new DefaultAgentXSharedMOTable(oid, indexDef, columns) {
public void setAgentXSharedMOTableSupport(AgentXSharedMOTableSupport
sharedTableSupport) {
super.setAgentXSharedMOTableSupport(sharedTableSupport);
((MOMutableTableModel)model).clear();
OID index =
new OID(new int[] {
sharedTableSupport.getSession().getSessionID() });
// register current session on shared table PeerEntry
Variable[] vbs = getDefaultValues();
vbs[idxPeerIndex] = new
Integer32(sharedTableSupport.getSession().getSessionID());
vbs[idxPeerName] = new OctetString("Session - " +
sharedTableSupport.getSession().getSessionID());
vbs[idxCurrentState] = new
OctetString(function.getState().toString());
MOTableRow row = createRow(index, vbs);
if (row != null) {
addRow(row);
}
}
};
}
if (oidStatEntry.equals(oid)) {
return new DefaultAgentXSharedMOTable(oid, indexDef, columns) {
public void setAgentXSharedMOTableSupport(AgentXSharedMOTableSupport
sharedTableSupport) {
super.setAgentXSharedMOTableSupport(sharedTableSupport);
((MOMutableTableModel)model).clear();
int sessionId = sharedTableSupport.getSession().getSessionID();
// add initial stats
psList = function.getPeerStatistics();
for (int i=0; psList!=null && i<psList.size(); i++) {
OID index =
new OID(new int[] { sessionId, i+1});
PeerStatistics ps = psList.get(i);
Variable[] vbs = getDefaultValues();
vbs[idxStatIndex] = new Integer32(i+1);
vbs[idxStatname] = new OctetString(ps.getPeerName() + " of session
- " + sessionId);
vbs[idxRecvCount] = new Counter32((int)ps.getReceivedCount());
vbs[idxSentCount] = new Counter32((int)ps.getSentCount());
MOTableRow row = createRow(index, vbs);
if (row != null) {
addRow(row);
}
}
}
};
}
return new DefaultAgentXSharedMOTable(oid, indexDef, columns);
}
public MOTable createTable(OID oid, MOTableIndex indexDef, MOColumn[] columns,
MOTableModel model) {
DefaultAgentXSharedMOTable table =
(DefaultAgentXSharedMOTable) createTable(oid, indexDef, columns);
table.setModel(model);
return table;
}
}
Here is the MIB:
peerEntry OBJECT-TYPE
SYNTAX PeerEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION "Each entry presents a peer."
INDEX { peerIndex }
::= { peerTable 1 }
PeerEntry ::= SEQUENCE {
peerIndex INTEGER,
...
}
peerIndex OBJECT-TYPE
SYNTAX INTEGER (1..2147483647)
ACCESS read-only
STATUS mandatory
DESCRIPTION "Unique index on peer table."
::= { peerEntry 1 }
statEntry OBJECT-TYPE
SYNTAX StatEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION "Each entry represents a statistic of a peer.
The peerIndex in the index represents the entry in
the peerTable that corresponds to the statEntry.
INDEX { peerIndex, statIndex }
::= { statTable 1 }
StatEntry ::= SEQUENCE {
statIndex INTEGER,
...
}
statIndex OBJECT-TYPE
SYNTAX INTEGER (1..2147483647)
ACCESS read-only
STATUS mandatory
DESCRIPTION "A unique value for each statistic of the peer."
::= { statEntry 1 }
Regards,
Jesse
Cerillion Technologies Limited
Office. +44 20 7927 6197
Web. www.cerillion.com
Addr. 125 Shaftsbury Avenue, London, WC2H 8AD, UK
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