Java TableEvent类代码示例

import org.snmp4j.util.TableEvent; //导入依赖的package包/类
public List<SNMPTriple> querySingleSNMPTableByOID(String oid) throws IOException
{
 if(oid == null || oid.isEmpty())return null;
 if(!oid.startsWith("."))oid = "."+oid;
    TableUtils tUtils = new TableUtils(snmp, new DefaultPDUFactory());
    List<TableEvent> events = tUtils.getTable(getTarget(), new OID[]{new OID(oid)}, null, null);

 List<SNMPTriple> snmpList = new ArrayList<SNMPTriple>();
    
    for (TableEvent event : events) {
      if(event.isError()) {
     	 logger.warning("SNMP event error: "+event.getErrorMessage());
     	 continue;
           //throw new RuntimeException(event.getErrorMessage());
      }
      for(VariableBinding vb: event.getColumns()) {
   	   String key = vb.getOid().toString();
   	   String value = vb.getVariable().toString();
   	 snmpList.add(new SNMPTriple(key, "", value));
      }
    }
 return snmpList;
}
 

import org.snmp4j.util.TableEvent; //导入依赖的package包/类
private int getDiskIndex(String device) throws IOException {

      TableUtils tUtils = new TableUtils(snmp, new DefaultPDUFactory());
      
      logger.fine("Query "+this.address+" for disk data: "+device);
       @SuppressWarnings("unchecked")
       List<TableEvent> events = tUtils.getTable(getTarget(), new OID[]{new OID("."+DISK_TABLE_DEVICE_OID)}, null, null);

       for (TableEvent event : events) {
         if(event.isError()) {
        	 logger.warning("SNMP event error: "+event.getErrorMessage());
        	 continue;
              //throw new RuntimeException(event.getErrorMessage());
         }
         for(VariableBinding vb: event.getColumns()) {
      	   String key = vb.getOid().toString();
      	   String value = vb.getVariable().toString();
      	   if(value!=null && value.equals(device))
      	   {
      	       logger.fine("Find device OID entry: "+key);
      	         int index = -1;
      	         String[] strs = key.split("\\.");
      	         try
      	         {
      	        	 index = Integer.parseInt(strs[strs.length-1]);
      	         }catch(Exception ex){}
      	         return index;
      	   }
         }
       }
       return -1;
 }
 

import org.snmp4j.util.TableEvent; //导入依赖的package包/类
private Map<Integer, String> getNetIfIndexes(String device) throws IOException {
  Map<Integer, String> ifMaps = new HashMap<Integer, String> ();
		
     TableUtils tUtils = new TableUtils(snmp, new DefaultPDUFactory());
     
     logger.fine("Query "+this.address+" for network interface, excluding lo");
      @SuppressWarnings("unchecked")
      List<TableEvent> events = tUtils.getTable(getTarget(), new OID[]{new OID("."+IF_TABLE_DEVICE_OID)}, null, null);

      for (TableEvent event : events) {
        if(event.isError()) {
       	 logger.warning("SNMP event error: "+event.getErrorMessage());
       	 continue;
             //throw new RuntimeException(event.getErrorMessage());
        }
        for(VariableBinding vb: event.getColumns()) {
     	   String key = vb.getOid().toString();
     	   String value = vb.getVariable().toString();
     	   if(device!=null && !device.isEmpty() && !value.equalsIgnoreCase(device))
     		   continue;
     	   if(value!=null && !value.equalsIgnoreCase("lo"))
     	   {
     	       logger.fine("Find device OID entry: "+key);
     	         int index = -1;
     	         String[] strs = key.split("\\.");
     	         try
     	         {
     	        	 index = Integer.parseInt(strs[strs.length-1]);
     	        	 ifMaps.put(index, value);
     	         }catch(Exception ex){}
     	   }
        }
      }
      return ifMaps;
}
 

import org.snmp4j.util.TableEvent; //导入依赖的package包/类
/**
  * Query index for given process name. Note the parameter only provides 128 characters,
  * so it could be difficult for us to differentiate each other if multi processes with same name exist.
  * So we will return this list and use the sum from all processes for our metrics
  * @param process
  * @return
  * @throws IOException
  */
 private List<Integer> getProcessIndexes(String process) throws IOException {
  List<Integer> indexes = new ArrayList<Integer> ();
     if(process == null || process.isEmpty())return indexes;

     TableUtils tUtils = new TableUtils(snmp, new DefaultPDUFactory());
     logger.fine("Query "+this.address+" for process " + process);
      @SuppressWarnings("unchecked")
      List<TableEvent> events = tUtils.getTable(getTarget(), new OID[]{new OID("."+PROCESS_TABLE_OID)}, null, null);

      for (TableEvent event : events) {
        if(event.isError()) {
       	 logger.warning("SNMP event error: "+event.getErrorMessage());
       	 continue;
             //throw new RuntimeException(event.getErrorMessage());
        }
        for(VariableBinding vb: event.getColumns()) {
     	   String key = vb.getOid().toString();
     	   String value = vb.getVariable().toString();
     	   if(process!=null && !process.isEmpty() && !value.equalsIgnoreCase(process))
     		   continue;
     	   if(value!=null)
     	   {
     	       logger.fine("Find process OID entry: "+key);
     	       int index = -1;
     	       String[] strs = key.split("\\.");
     	       try
     	       {
     	    	   index = Integer.parseInt(strs[strs.length-1]);
     	    	   indexes.add(index);
     	       }catch(Exception ex){}
     	   }
        }
      }
      return indexes;
}
 

import org.snmp4j.util.TableEvent; //导入依赖的package包/类
/**
 * Decodes a row into name-value pairs; assuming the columns are supplied in
 * order of table OID.
 *
 * @throws IllegalStateException if OIDs don't correspond
 */
public Map<String, Variable> row(TableEvent te) {
    Map<String, Variable> map = new HashMap<String, Variable>();
    for (int i = 0; i < te.getColumns().length; i++) {
        String colName = columns.get(i);
        VariableBinding vb = te.getColumns()[i];
        if (!vb.getOid().startsWith(oids[i]))
            throw new IllegalStateException(vb + " does not start with " + oids[i]);
        map.put(colName, vb.getVariable());
    }
    return map;
}
 

import org.snmp4j.util.TableEvent; //导入依赖的package包/类
/**
 * Decode a table event for a table, assuming the columns are as ordered in the
 * call to {@link #getTable(String)}.
 *
 * @param tableName
 * @param te
 * @return
 */
public Map<String, Variable> decode(String tableName, TableEvent te) {
    HashMap<String, Variable> hm = new HashMap<String, Variable>();
    log.debug(te);
    for (VariableBinding vb : te.getColumns()) {
        String key = oids.get(vb.getOid());
        Variable var = vb.getVariable();
        hm.put(key, var);
    }
    return hm;
}
 

import org.snmp4j.util.TableEvent; //导入依赖的package包/类
public void testWalkSystem() throws IOException {
    
    Snmp snmp = new Snmp(new DefaultUdpTransportMapping());
    TableUtils walker = new TableUtils(snmp, new DefaultPDUFactory());
    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);
    
    // Implements snmp4j API
    @SuppressWarnings("unchecked")
    List results = walker.getTable(target, new OID[] {new OID("1.3.6.1.2.1.1")}, null, null);
    
    assertNotNull(results);
    assertFalse(results.isEmpty());
    
    assertTrue(results.get(results.size()-1) instanceof TableEvent);
    
    TableEvent lastEvent = (TableEvent)results.get(results.size()-1);
    MockUtil.println("Status of lastEvent is "+lastEvent.getStatus());
    assertEquals(TableEvent.STATUS_OK, lastEvent.getStatus());
    
    
    
}
 

import org.snmp4j.util.TableEvent; //导入依赖的package包/类
@Test
public void testSnmpGetBulk() throws Exception {
    List<TableEvent> responses = SnmpmanTest.getResponse(new OID("1.3.6.1.2.1"), 10000);
    assertEquals(responses.size(), 19);

    responses = SnmpmanTest.getResponse(new OID("1.3.6.1.2.1.31"), 10000);
    assertEquals(responses.size(), 10);

    responses = SnmpmanTest.getResponse(new OID(".1.3.6.1.2.1.2"), 10000);
    assertEquals(responses.size(), 7);
}
 

import org.snmp4j.util.TableEvent; //导入依赖的package包/类
@Test
public void testWithCommunityIndex() throws Exception {
    final String oid = "1.3.6.1.2.1.17.2.4";
    List<TableEvent> responses1 = SnmpmanTest.getResponse(new OID(oid), 10009, "[email protected]");
    assertEquals(responses1.size(), 1);
    assertTrue(SnmpmanTest.containsColumn(responses1, oid, "150"));

    List<TableEvent> responses2 = SnmpmanTest.getResponse(new OID(oid), 10009, "[email protected]");
    assertEquals(responses2.size(), 1);
    assertTrue(SnmpmanTest.containsColumn(responses2, oid, "120"));

    List<TableEvent> responses3 = SnmpmanTest.getResponse(new OID(oid), 10009, "public");
    assertEquals(responses3.size(), 1);
    assertTrue(SnmpmanTest.containsColumn(responses3, oid, "0"));
}
 

import org.snmp4j.util.TableEvent; //导入依赖的package包/类
private Map<Integer, String> getDiskIndexes() throws IOException {
Map<Integer, String> diskIndexes = new HashMap<Integer, String>();
      TableUtils tUtils = new TableUtils(snmp, new DefaultPDUFactory());
      
      logger.fine("Query "+this.address+" for disk oids");
       @SuppressWarnings("unchecked")
       List<TableEvent> events = tUtils.getTable(getTarget(), new OID[]{new OID("."+DISK_TABLE_DEVICE_OID)}, null, null);

       for (TableEvent event : events) {
         if(event.isError()) {
        	 logger.warning("SNMP event error: "+event.getErrorMessage());
        	 continue;
              //throw new RuntimeException(event.getErrorMessage());
         }
         
         for(VariableBinding vb: event.getColumns()) {
      	   String key = vb.getOid().toString();
      	   String value = vb.getVariable().toString();
      	   if(value == null || value.isEmpty() || value.startsWith("dm-"))continue;//ignore dm disk
      	   if(value.startsWith("ram") || value.startsWith("loop") )continue;//ignore dm disk
      	   char c = value.charAt(value.length()-1);
      	   if(c>='0' && c<='9' )
      	   {
      		   if(value.startsWith("sd"))
      		   {
      			   if(value.length()>2)
      			   {
      				   char d = value.charAt(2);
      				   if(d>='a' && d<='z')continue;
      			   }
      		   }
      	   }
      	   logger.fine("Find device OID entry: "+key);
      	   int index = -1;
      	   String[] strs = key.split("\\.");
      	   try
      	   {
      		   index = Integer.parseInt(strs[strs.length-1]);
      	       diskIndexes.put(index,  value); 	 
      	   }catch(Exception ex){}
      	}
       }
       return diskIndexes;
 }
 

import org.snmp4j.util.TableEvent; //导入依赖的package包/类
public List<TableEvent> getTable(OID oids[]) {
    TableUtils tableUtils = getTableUtils();
    return tableUtils.getTable(target, oids, null, null);
}
 

import org.snmp4j.util.TableEvent; //导入依赖的package包/类
/**
 * Discover table rows by querying the table name, which is either the resource name
 * or 'table' configuration value.
 */
@Override
public Set<DiscoveredResourceDetails> discoverResources(ResourceDiscoveryContext<MibComponent> rdc) throws Exception {

    Set<DiscoveredResourceDetails> drd = new HashSet<DiscoveredResourceDetails>();
    Configuration conf = rdc.getDefaultPluginConfiguration();

    MibComponent mibComponent = rdc.getParentResourceComponent();
    String tableName = rdc.getResourceType().getName();
    tableName = conf.getSimpleValue(TABLE, tableName);

    log.debug("discover table " + tableName);
    MibIndex index = mibComponent.getIndex();
    TableRecord tableRecord = index.getTableRecord(tableName);
    OID oids[] = { tableRecord.getOids()[0] };
    List<TableEvent> events = mibComponent.getSnmpComponent().getTable(oids);

    for (TableEvent event : events) {
        conf = conf.deepCopy();
        log.debug("events " + event);
        if (event.getIndex() == null) {
            log.debug("empty index");
            continue;
        }
        log.debug("event index " + event.getIndex());
        String name = toString(tableRecord.index(event));
        log.debug("decode " + name);
        String version = null;

        String key = event.getIndex().toString();
        conf.put(new PropertySimple(INDEX, key));
        conf.put(new PropertySimple(TABLE, tableName));

        DiscoveredResourceDetails detail = new DiscoveredResourceDetails(
                rdc.getResourceType(), // ResourceType
                key,    // key
                name, // help resource name
                version, // Version
                "SNMP table " + tableName + ", row index " + name, // description
                conf,
                null // process information
        );
        drd.add(detail);
    }

    return drd;
}
 

import org.snmp4j.util.TableEvent; //导入依赖的package包/类
public void testWalkSystem() throws IOException {
    
    Snmp snmp = new Snmp(new DefaultUdpTransportMapping());
    TableUtils walker = new TableUtils(snmp, new DefaultPDUFactory());
    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);
    
    @SuppressWarnings("unchecked")
    List results = walker.getTable(target, new OID[] {new OID("1.3.6.1.2.1.1")}, null, null);
    
    assertNotNull(results);
    assertFalse(results.isEmpty());
    
    assertTrue(results.get(results.size()-1) instanceof TableEvent);
    
    TableEvent lastEvent = (TableEvent)results.get(results.size()-1);
    MockUtil.println("Status of lastEvent is "+lastEvent.getStatus());
    assertEquals(TableEvent.STATUS_OK, lastEvent.getStatus());
    
    
    
}
 

import org.snmp4j.util.TableEvent; //导入依赖的package包/类
/**
 * Based on the table index type, returns the columns of the index with their value.
 * The values are either String, Number, or ???
 *
 * @throws IOException if decode fails
 */
public Map<String, Object> index(TableEvent te) throws IOException {
    return index(te.getIndex());
}