snmp

win7下安装NET-SNMP http://blog.csdn.net/yangyinbo/article/details/6029492
@FixMethodOrder ( MethodSorters.JVM )

public class AgentTest
{

private static final String OID_SYS_DESCR = "1.3.6.1.2.1.1.1.0";

private static Logger LOGGER = LoggerFactory.getLogger( AgentTest.class );

private static final String AGENT_ADDR = "udp:127.0.0.1/16100";

private static final String MANAGER_ADDR = "udp:127.0.0.1/16200";

private static UdpAddress agentAddr = (UdpAddress) GenericAddress.parse( AGENT_ADDR );

private static UdpAddress mgrAddr = (UdpAddress) GenericAddress.parse( MANAGER_ADDR );

private static SnmpAgent agent;

private static Snmp mgrSession;

@BeforeClass
public static void setUpBeforeClass() throws Exception
{
agent = new SnmpAgent( AGENT_ADDR );
agent.start();

TransportMapping transportMapping = new DefaultUdpTransportMapping( mgrAddr );
mgrSession = new Snmp( transportMapping );
transportMapping.listen();

}

@AfterClass
public static void tearDownAfterClass() throws Exception
{
agent.stop();
mgrSession.close();
}

private Target createSNMPv2Target()
{
Target target = new CommunityTarget( agentAddr, new OctetString( "public" ) );
target.setVersion( SnmpConstants.version2c );
target.setAddress( agentAddr );
return target;
}

private PDU createSNMPv2PDU_GET( String oid )
{
PDU req = new PDU();
req.setType( PDU.GET );
req.add( new VariableBinding( new OID( oid ) ) );
return req;
}

private PDU createSNMPv2PDU_GETBULK( String oid, int maxRepetitions )
{
PDU req = new PDU();
req.setType( PDU.GETBULK );
req.setMaxRepetitions( maxRepetitions );
req.setNonRepeaters( 0 );
req.add( new VariableBinding( new OID( oid ) ) );
return req;
}

private String getAsString( String oid ) throws Exception
{
ResponseEvent respEvent = mgrSession.send( createSNMPv2PDU_GET( oid ), createSNMPv2Target() );
PDU resp = respEvent.getResponse();
return resp.get( 0 ).getVariable().toString();
}

private String variableToString( Variable var ) throws UnsupportedEncodingException
{
if ( var instanceof OctetString )
{
return new String( ( (OctetString) var ).getValue() );
}
else
{
return var.toString();
}
}

/**
* BaseAgent注册了一些默认的MIB，我们这里发起一个1.3.6.1.2.1.1.1请求（sysDescr）测试其是否正常工作
*/
@Test
public void testDefaultMIB() throws Exception
{
//测试BaseAgent注册的默认MIB-II
assertEquals( "SNMP4J-Agent - Windows 7 - amd64 - 6.1", getAsString( OID_SYS_DESCR ) );
}

/**
* 创建一个标量并且注册到Agent
*/
@Test
public void testUserDefinedScalar() throws Exception
{
//解除注册默认的Snmpv2 MIB
agent.unregisterManagedObject( agent.getSnmpv2MIB() );
String sysDescr = "Ubuntu 14 - amd64";
MOScalar mo = new MOScalar( //创建一个标量
new OID( OID_SYS_DESCR ), //OID
MOAccessImpl.ACCESS_READ_ONLY,//最高访问级别
new OctetString( sysDescr ) //值
);
agent.registerManagedObject( mo );
assertEquals( sysDescr, getAsString( OID_SYS_DESCR ) );
}

/**
* 创建一个表格并且注册到Agent，该用例将打印：
* 1.3.6.1.4.1.8808.8.1.1: 19
* 1.3.6.1.4.1.8808.8.1.2: 20
* 1.3.6.1.4.1.8808.8.2.1: 汪震
* 1.3.6.1.4.1.8808.8.2.2: 汪静好
* 1.3.6.1.4.1.8808.8.3.1: 198609
* 1.3.6.1.4.1.8808.8.3.2: 201411
*
* 可以看到SNMP表这种按列遍历的顺序以及Table中变量OID的组织方式
*/
@SuppressWarnings ( "unchecked" )
@Test
public void testUserDefinedTable() throws Exception
{
final String STAFF_TAB_OID = "1.3.6.1.4.1.8808.8";
OID staffTableOID = new OID( STAFF_TAB_OID ); //员工表
MOTableSubIndex[] subIndexes = new MOTableSubIndex[] { new MOTableSubIndex( SMIConstants.SYNTAX_INTEGER ) };
MOColumn[] columns = new MOColumn[] {
new MOColumn( 1, SMIConstants.SYNTAX_INTEGER, MOAccessImpl.ACCESS_READ_ONLY ),//工号
new MOColumn( 2, SMIConstants.SYNTAX_OCTET_STRING, MOAccessImpl.ACCESS_READ_ONLY ),//姓名
new MOColumn( 3, SMIConstants.SYNTAX_INTEGER, MOAccessImpl.ACCESS_READ_ONLY ) //出生年月
};
DefaultMOTable table = new DefaultMOTable( staffTableOID, new MOTableIndex( subIndexes, false ), columns );
MOMutableTableModel model = (MOMutableTableModel) table.getModel();
model.addRow( new DefaultMOMutableRow2PC( new OID( "1" ), new Variable[] {
new Integer32( 19 ), new OctetString( "汪震" ), new Integer32( 198609 )
} ) );
model.addRow( new DefaultMOMutableRow2PC( new OID( "2" ), new Variable[] {
new Integer32( 20 ), new OctetString( "汪静好" ), new Integer32( 201411 )
} ) );
table.setVolatile( true );
agent.registerManagedObject( table );

PDU req = createSNMPv2PDU_GETBULK( STAFF_TAB_OID, 6 );
ResponseEvent respEvent = mgrSession.send( req, createSNMPv2Target() );
PDU resp = respEvent.getResponse();
if ( resp != null && resp.getErrorStatus() == PDU.noError )
{
Vector<? extends VariableBinding> vbs = resp.getVariableBindings();
StringBuilder buf = new StringBuilder();
for ( VariableBinding vb : vbs )
{
Variable var = vb.getVariable();
buf.append( String.format( "%s: %s\n", vb.getOid(), variableToString( var ) ) );
}
LOGGER.debug( buf.toString() );
}
}
}