Examples with VariableBinding org.snmp4j.smi.VariableBinding used on opensource projects

Example 36 with VariableBinding

use of org.snmp4j.smi.VariableBinding in project camel by apache.

the class SnmpProducer method doStart.

@Override
protected void doStart() throws Exception {
    super.doStart();
    this.targetAddress = GenericAddress.parse(this.endpoint.getAddress());
    LOG.debug("targetAddress: {}", targetAddress);
    this.usm = new USM(SecurityProtocols.getInstance(), new OctetString(MPv3.createLocalEngineID()), 0);
    SecurityModels.getInstance().addSecurityModel(this.usm);
    // setting up target
    this.target = new CommunityTarget();
    this.target.setCommunity(new OctetString(endpoint.getSnmpCommunity()));
    this.target.setAddress(this.targetAddress);
    this.target.setRetries(this.endpoint.getRetries());
    this.target.setTimeout(this.endpoint.getTimeout());
    this.target.setVersion(this.endpoint.getSnmpVersion());
    this.pdu = new PDU();
    for (OID oid : this.endpoint.getOids()) {
        this.pdu.add(new VariableBinding(oid));
    }
    this.pdu.setErrorIndex(0);
    this.pdu.setErrorStatus(0);
    this.pdu.setMaxRepetitions(0);
    this.pdu.setType(PDU.GET);
}

Example 37 with VariableBinding

use of org.snmp4j.smi.VariableBinding in project camel by apache.

the class SnmpConverters method toString.

/**
     * Converts the given snmp pdu to a String body.
     *
     * @param pdu       the snmp pdu
     * @return  the text content
     */
@Converter
public static String toString(PDU pdu) {
    // the output buffer
    StringBuilder sb = new StringBuilder();
    // prepare the header
    if (pdu.getType() == PDU.V1TRAP) {
        sb.append("<" + SNMP_TAG + " messageType=\"v1\">");
    } else {
        sb.append(SNMP_TAG_OPEN);
    }
    // Extract SNMPv1 specific variables
    if (pdu.getType() == PDU.V1TRAP) {
        PDUv1 v1pdu = (PDUv1) pdu;
        entryAppend(sb, "enterprise", v1pdu.getEnterprise().toString());
        entryAppend(sb, "agent-addr", v1pdu.getAgentAddress().toString());
        entryAppend(sb, "generic-trap", Integer.toString(v1pdu.getGenericTrap()));
        entryAppend(sb, "specific-trap", Integer.toString(v1pdu.getSpecificTrap()));
        entryAppend(sb, "time-stamp", Long.toString(v1pdu.getTimestamp()));
    }
    // now loop all variables of the response
    for (Object o : pdu.getVariableBindings()) {
        VariableBinding b = (VariableBinding) o;
        sb.append(ENTRY_TAG_OPEN);
        sb.append(OID_TAG_OPEN);
        sb.append(b.getOid().toString());
        sb.append(OID_TAG_CLOSE);
        sb.append(VALUE_TAG_OPEN);
        sb.append(StringHelper.xmlEncode(b.getVariable().toString()));
        sb.append(VALUE_TAG_CLOSE);
        sb.append(ENTRY_TAG_CLOSE);
    }
    // prepare the footer
    sb.append(SNMP_TAG_CLOSE);
    return sb.toString();
}

Example 38 with VariableBinding

use of org.snmp4j.smi.VariableBinding in project openhab1-addons by openhab.

the class SnmpBinding method execute.

/**
     * @{inheritDoc
     */
@Override
public void execute() {
    for (SnmpBindingProvider provider : providers) {
        for (String itemName : provider.getInBindingItemNames()) {
            int refreshInterval = provider.getRefreshInterval(itemName);
            Long lastUpdateTimeStamp = lastUpdateMap.get(itemName);
            if (lastUpdateTimeStamp == null) {
                lastUpdateTimeStamp = 0L;
            }
            long age = System.currentTimeMillis() - lastUpdateTimeStamp;
            boolean needsUpdate;
            if (refreshInterval == 0) {
                needsUpdate = false;
            } else {
                needsUpdate = age >= refreshInterval;
            }
            if (needsUpdate) {
                logger.debug("Item '{}' is about to be refreshed", itemName);
                // Set up the target
                CommunityTarget target = new CommunityTarget();
                target.setCommunity(provider.getCommunity(itemName));
                target.setAddress(provider.getAddress(itemName));
                target.setRetries(retries);
                target.setTimeout(timeout);
                target.setVersion(provider.getSnmpVersion(itemName));
                // Create the PDU
                PDU pdu = new PDU();
                pdu.add(new VariableBinding(provider.getOID(itemName)));
                pdu.setType(PDU.GET);
                logger.debug("SNMP: Send PDU {} {}", provider.getAddress(itemName), pdu);
                if (snmp == null) {
                    logger.error("SNMP: snmp not initialised - aborting request");
                } else {
                    sendPDU(target, pdu);
                }
                lastUpdateMap.put(itemName, System.currentTimeMillis());
            }
        }
    }
}

Example 39 with VariableBinding

use of org.snmp4j.smi.VariableBinding in project opennms by OpenNMS.

the class Snmp4JStrategy method buildPdu.

protected PDU buildPdu(Snmp4JAgentConfig agentConfig, int pduType, SnmpObjId[] oids, SnmpValue[] values) {
    PDU pdu = agentConfig.createPdu(pduType);
    if (values == null) {
        for (SnmpObjId oid : oids) {
            pdu.add(new VariableBinding(new OID(oid.toString())));
        }
    } else {
        // TODO should this throw an exception?  This situation is fairly bogus and probably signifies a coding error.
        if (oids.length != values.length) {
            Exception e = new SnmpException("PDU values do not match OIDs");
            LOG.error("PDU to prepare has object values but not the same number as there are OIDs.  There are {} OIDs and {} object values.", oids.length, values.length, e);
            return null;
        }
        for (int i = 0; i < oids.length; i++) {
            pdu.add(new VariableBinding(new OID(oids[i].toString()), new Snmp4JValue(values[i].getType(), values[i].getBytes()).getVariable()));
        }
    }
    // TODO should this throw an exception?  This situation is fairly bogus.
    if (pdu.getVariableBindings().size() != oids.length) {
        Exception e = new SnmpException("PDU bindings do not match OIDs");
        LOG.error("Prepared PDU does not have as many variable bindings as there are OIDs.  There are {} OIDs and {} variable bindings.", oids.length, pdu.getVariableBindings(), e);
        return null;
    }
    return pdu;
}

Example 40 with VariableBinding

use of org.snmp4j.smi.VariableBinding in project opennms by OpenNMS.

the class MockAgentTest method testGetSysName.

public void testGetSysName() throws IOException {
    Snmp snmp = new Snmp(new DefaultUdpTransportMapping());
    snmp.listen();
    Address addr = new UdpAddress(InetAddress.getLocalHost(), 9161);
    // Address addr = new UdpAddress(InetAddressUtils.addr("192.168.0.100"), 161);
    Target target = new CommunityTarget(addr, new OctetString("public"));
    target.setVersion(SnmpConstants.version1);
    target.setTimeout(3000);
    target.setRetries(3);
    PDUv1 getRequest = new PDUv1();
    getRequest.add(new VariableBinding(new OID("1.3.6.1.2.1.1.5.0")));
    ResponseEvent e = snmp.get(getRequest, target);
    PDU response = e.getResponse();
    assertEquals(new OctetString("mockhost"), response.get(0).getVariable());
}