/**
* {@inheritDoc}
*
* <p>Returns true if the protocol defined by this plugin is supported. If the protocol is not
* supported then a false value is returned to the caller. The qualifier map passed to the method
* is used by the plugin to return additional information by key-name. These key-value pairs can
* be added to service events if needed.
*/
@Override
public boolean isProtocolSupported(InetAddress address, Map<String, Object> qualifiers) {
try {
String oid = ParameterMap.getKeyedString(qualifiers, "vbname", DEFAULT_OID);
SnmpAgentConfig agentConfig = SnmpPeerFactory.getInstance().getAgentConfig(address);
String expectedValue = null;
String isTable = null;
if (qualifiers != null) {
// "port" parm
//
if (qualifiers.get("port") != null) {
int port = ParameterMap.getKeyedInteger(qualifiers, "port", agentConfig.getPort());
agentConfig.setPort(port);
}
// "timeout" parm
//
if (qualifiers.get("timeout") != null) {
int timeout =
ParameterMap.getKeyedInteger(qualifiers, "timeout", agentConfig.getTimeout());
agentConfig.setTimeout(timeout);
}
// "retry" parm
//
if (qualifiers.get("retry") != null) {
int retry = ParameterMap.getKeyedInteger(qualifiers, "retry", agentConfig.getRetries());
agentConfig.setRetries(retry);
}
// "force version" parm
//
if (qualifiers.get("force version") != null) {
String version = (String) qualifiers.get("force version");
if (version.equalsIgnoreCase("snmpv1")) agentConfig.setVersion(SnmpAgentConfig.VERSION1);
else if (version.equalsIgnoreCase("snmpv2") || version.equalsIgnoreCase("snmpv2c"))
agentConfig.setVersion(SnmpAgentConfig.VERSION2C);
// TODO: make sure JoeSnmpStrategy correctly handles this.
else if (version.equalsIgnoreCase("snmpv3"))
agentConfig.setVersion(SnmpAgentConfig.VERSION3);
}
// "vbvalue" parm
//
if (qualifiers.get("vbvalue") != null) {
expectedValue = (String) qualifiers.get("vbvalue");
}
if (qualifiers.get("table") != null) {
isTable = (String) qualifiers.get("table");
}
}
if (isTable != null && isTable.equalsIgnoreCase("true")) {
SnmpObjId snmpObjId = SnmpObjId.get(oid);
Map<SnmpInstId, SnmpValue> table =
SnmpUtils.getOidValues(agentConfig, "SnmpPlugin", snmpObjId);
for (Map.Entry<SnmpInstId, SnmpValue> e : table.entrySet()) {
if (e.getValue().toString().equals(expectedValue)) {
return true;
}
}
} else {
String retrievedValue = getValue(agentConfig, oid);
if (retrievedValue != null && expectedValue != null) {
return (Pattern.compile(expectedValue).matcher(retrievedValue).find());
} else {
return (retrievedValue != null);
// return (expectedValue == null ? true : retrievedValue.equals(expectedValue));
}
}
} catch (Throwable t) {
throw new UndeclaredThrowableException(t);
}
// should never get here.
return false;
}
@Override
public OnmsAccessPointCollection call() throws IOException {
OnmsAccessPointCollection apsUp = new OnmsAccessPointCollection();
InetAddress ipaddr = m_iface.getIpAddress();
// Retrieve this interface's SNMP peer object
SnmpAgentConfig agentConfig = getAgentConfig(ipaddr);
final String hostAddress = InetAddressUtils.str(ipaddr);
LOG.debug("poll: setting SNMP peer attribute for interface {}", hostAddress);
// Get configuration parameters
String oid = ParameterMap.getKeyedString(m_parameters, "oid", null);
if (oid == null) {
throw new IllegalStateException("oid parameter is not set.");
}
String operator = ParameterMap.getKeyedString(m_parameters, "operator", null);
String operand = ParameterMap.getKeyedString(m_parameters, "operand", null);
String matchstr = ParameterMap.getKeyedString(m_parameters, "match", "true");
LOG.debug("InstanceStrategy.poll: SnmpAgentConfig address= {}", agentConfig);
// Establish SNMP session with interface
try {
SnmpObjId snmpObjectId = SnmpObjId.get(oid);
Map<SnmpInstId, SnmpValue> map =
SnmpUtils.getOidValues(agentConfig, "AccessPointMonitor::InstanceStrategy", snmpObjectId);
if (map.size() <= 0) {
throw new IOException("No entries found in table (possible timeout).");
}
for (Map.Entry<SnmpInstId, SnmpValue> entry : map.entrySet()) {
boolean isUp = false;
SnmpInstId instance = entry.getKey();
SnmpValue value = entry.getValue();
// Check the value against the configured criteria
if (meetsCriteria(value, operator, operand)) {
if ("true".equals(matchstr)) {
isUp = true;
}
} else if ("false".equals(matchstr)) {
isUp = true;
}
// If the criteria is met, find the AP and add it to the list
// of online APs
if (isUp) {
String physAddr = getPhysAddrFromInstance(instance);
LOG.debug(
"AP at instance '{}' with MAC '{}' is considered to be ONLINE on controller '{}'",
instance,
physAddr,
m_iface.getIpAddress());
OnmsAccessPoint ap = m_accessPointDao.get(physAddr);
if (ap != null) {
if (ap.getPollingPackage().compareToIgnoreCase(getPackage().getName()) == 0) {
// Save the controller's IP address
ap.setControllerIpAddress(ipaddr);
apsUp.add(ap);
} else {
LOG.info("AP with MAC '{}' is in a different package.", physAddr);
}
} else {
LOG.info("No matching AP in database for instance '{}'.", instance);
}
}
}
} catch (NumberFormatException e) {
LOG.error("Number operator used on a non-number ", e);
} catch (IllegalArgumentException e) {
LOG.error("Invalid SNMP Criteria ", e);
} catch (InterruptedException e) {
LOG.error("Interrupted while polling {}", hostAddress, e);
}
return apsUp;
}
public OnmsAccessPointCollection call() throws IOException {
OnmsAccessPointCollection apsUp = new OnmsAccessPointCollection();
InetAddress ipaddr = m_iface.getIpAddress();
// Retrieve this interface's SNMP peer object
SnmpAgentConfig agentConfig = SnmpPeerFactory.getInstance().getAgentConfig(ipaddr);
if (agentConfig == null) {
throw new IllegalStateException(
"SnmpAgentConfig object not available for interface " + ipaddr);
}
final String hostAddress = InetAddressUtils.str(ipaddr);
log().debug("poll: setting SNMP peer attribute for interface " + hostAddress);
// Get configuration parameters
String oid = ParameterMap.getKeyedString(m_parameters, "oid", null);
if (oid == null) {
throw new IllegalStateException("oid parameter is not set.");
}
agentConfig.hashCode();
// Set timeout and retries on SNMP peer object
agentConfig.setTimeout(
ParameterMap.getKeyedInteger(m_parameters, "timeout", agentConfig.getTimeout()));
agentConfig.setRetries(
ParameterMap.getKeyedInteger(
m_parameters,
"retry",
ParameterMap.getKeyedInteger(m_parameters, "retries", agentConfig.getRetries())));
agentConfig.setPort(ParameterMap.getKeyedInteger(m_parameters, "port", agentConfig.getPort()));
if (log().isDebugEnabled()) {
log().debug("TableStrategy.poll: SnmpAgentConfig address= " + agentConfig);
}
// Establish SNMP session with interface
try {
SnmpObjId snmpObjectId = SnmpObjId.get(oid);
Map<SnmpInstId, SnmpValue> map =
SnmpUtils.getOidValues(agentConfig, "AccessPointMonitor::TableStrategy", snmpObjectId);
if (map.size() <= 0) {
throw new IOException("No entries found in table (possible timeout).");
}
for (Map.Entry<SnmpInstId, SnmpValue> entry : map.entrySet()) {
SnmpValue value = entry.getValue();
String physAddr = getPhysAddrFromValue(value);
log()
.debug(
"AP at value '"
+ value.toHexString()
+ "' with MAC '"
+ physAddr
+ "' is considered to be ONLINE on controller '"
+ m_iface.getIpAddress()
+ "'");
OnmsAccessPoint ap = m_accessPointDao.findByPhysAddr(physAddr);
if (ap != null) {
if (ap.getPollingPackage().compareToIgnoreCase(getPackage().getName()) == 0) {
// Save the controller's IP address
ap.setControllerIpAddress(ipaddr);
apsUp.add(ap);
} else {
log().info("AP with MAC '" + physAddr + "' is in a different package.");
}
} else {
log().info("No matching AP in database for value '" + value.toHexString() + "'.");
}
}
} catch (InterruptedException e) {
log().error("Interrupted while polling " + hostAddress, e);
}
return apsUp;
}
