SnmpMessageToTrap.java

// Copyright 2014-2015 Boundary, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.boundary.sdk.event.snmp;

import java.io.File;
import java.util.Vector;

import org.apache.camel.Exchange;
import org.apache.camel.Message;
import org.apache.camel.Processor;
import org.apache.camel.component.snmp.SnmpMessage;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.snmp4j.PDU;
import org.snmp4j.smi.OID;
import org.snmp4j.smi.VariableBinding;

import com.snmp4j.smi.SmiManager;
import com.snmp4j.smi.SmiObject;
import com.snmp4j.smi.SmiType;

/**
 * Converts and {@link SnmpMessage} to a {@link SnmpTrap}
 */
public class SnmpMessageToTrap extends SnmpMessageProcessor {

	private static Logger LOG = LoggerFactory.getLogger(SnmpMessageToTrap.class);

	public SnmpMessageToTrap(String repositoryPath, String license) {
		super(repositoryPath,license);
	}
	
	private void setTrapName(SnmpTrap snmpTrap,Vector<? extends VariableBinding> varBinds) {
		SmiManager smiManager = this.getSmiManager();
		
		for(VariableBinding vb : varBinds) {
			OID oid = vb.getOid();
			SmiObject object = smiManager.findSmiObject(oid);
			if (object != null && object.getType() == SmiType.NOTIFICATION_TYPE) {
				String objectName = object.getObjectName();
				snmpTrap.setTrapName(objectName);
				LOG.info("Setting trap type to: {}",objectName);
			}
		}
		
	}

	@Override
	public void process(Exchange exchange) throws Exception {
		Vector<VariableBinding> varBinds = SnmpExchangeUtils.extractVarBinds(exchange);
		SnmpTrap snmpTrap = new SnmpTrap();
		setTrapName(snmpTrap,varBinds);
		snmpTrap.setVariableBindings(varBinds);
		snmpTrap.setHost(SnmpExchangeUtils.extractHost(exchange));
		
		Message message = exchange.getIn();
		message.setHeader(BOUNDARY_SMI_MANAGER,this.getSmiManager());
		message.setBody(snmpTrap);
	}
}