snmpcollector.java

来自「opennms得相关源码 请大家看看」· Java 代码 · 共 1,443 行 · 第 1/5 页

//
// This file is part of the OpenNMS(R) Application.
//
// OpenNMS(R) is Copyright (C) 2002-2003 The OpenNMS Group, Inc.  All rights reserved.
// OpenNMS(R) is a derivative work, containing both original code, included code and modified
// code that was published under the GNU General Public License. Copyrights for modified 
// and included code are below.
//
// OpenNMS(R) is a registered trademark of The OpenNMS Group, Inc.
//
// Modifications:
// 
// 2005 Jan 03: Added support for lame SNMP hosts
// 2003 Oct 20: Added minval and maxval code for mibObj RRDs
// 2003 Jan 31: Cleaned up some unused imports.
//
// Original code base Copyright (C) 1999-2001 Oculan Corp.  All rights reserved.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.                                                            
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//       
// For more information contact: 
//      OpenNMS Licensing       <[e-mail]>
//      http://www.opennms.org/
//      http://www.opennms.com/
//

package org.opennms.netmgt.collectd;

import java.io.File;
import java.io.IOException;
import java.lang.reflect.UndeclaredThrowableException;
import java.net.InetAddress;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;

import org.apache.log4j.Category;
import org.apache.log4j.Priority;
import org.exolab.castor.xml.MarshalException;
import org.exolab.castor.xml.ValidationException;
import org.opennms.core.utils.ThreadCategory;
import org.opennms.netmgt.EventConstants;
import org.opennms.netmgt.capsd.DbIpInterfaceEntry;
import org.opennms.netmgt.config.DataCollectionConfigFactory;
import org.opennms.netmgt.config.DatabaseConnectionFactory;
import org.opennms.netmgt.config.SnmpPeerFactory;
import org.opennms.netmgt.poller.monitors.NetworkInterface;
import org.opennms.netmgt.rrd.RrdException;
import org.opennms.netmgt.rrd.RrdUtils;
import org.opennms.netmgt.utils.AlphaNumeric;
import org.opennms.netmgt.utils.BarrierSignaler;
import org.opennms.netmgt.utils.EventProxy;
import org.opennms.netmgt.utils.EventProxyException;
import org.opennms.netmgt.utils.ParameterMap;
import org.opennms.netmgt.utils.SnmpResponseHandler;
import org.opennms.netmgt.xml.event.Event;
import org.opennms.protocols.snmp.SnmpObjectId;
import org.opennms.protocols.snmp.SnmpPduBulk;
import org.opennms.protocols.snmp.SnmpPduPacket;
import org.opennms.protocols.snmp.SnmpPduRequest;
import org.opennms.protocols.snmp.SnmpPeer;
import org.opennms.protocols.snmp.SnmpSMI;
import org.opennms.protocols.snmp.SnmpSession;
import org.opennms.protocols.snmp.SnmpSyntax;
import org.opennms.protocols.snmp.SnmpVarBind;

/**
 * <P>
 * The SnmpCollector class ...
 * </P>
 * 
 * @author <A HREF="mailto:[e-mail]">Mike Davidson </A>
 * @author <A HREF="http://www.opennms.org/">OpenNMS </A>
 * 
 */
final class SnmpCollector implements ServiceCollector {
    /**
     * Name of monitored service.
     */
    private static final String SERVICE_NAME = "SNMP";

    /**
     * SQL statement to retrieve interface's 'ipinterface' table information.
     */
    private static final String SQL_GET_NODEID = "SELECT nodeid,ifindex,issnmpprimary FROM ipinterface WHERE ipaddr=? AND ismanaged!='D'";

    /**
     * SQL statement to retrieve interface's 'issnmpprimary' table information.
     */
    private static final String SQL_GET_ISSNMPPRIMARY = "SELECT ifindex,issnmpprimary FROM ipinterface WHERE nodeid=?";

    /**
     * /** SQL statement to retrieve node's system object id.
     */
    private static final String SQL_GET_NODESYSOID = "SELECT nodesysoid FROM node WHERE nodeid=? AND nodetype!='D'";

    /**
     * SQL statement to check for SNMPv2 for a node
     */
    private static final String SQL_CHECK_SNMPV2 = "SELECT ifservices.serviceid FROM service, ifservices WHERE servicename='SNMPv2' AND ifservices.serviceid = service.serviceid AND nodeid=?";

    /**
     * SQL statement to fetch the ifIndex, ifName, and ifDescr values for all
     * interfaces associated with a node
     */
    private static final String SQL_GET_SNMP_INFO = "SELECT DISTINCT snmpifindex, snmpiftype, snmpifname, snmpifdescr,snmpphysaddr " + "FROM snmpinterface, ipinterface " + "WHERE ipinterface.nodeid=snmpinterface.nodeid " + "AND ifindex = snmpifindex " + "AND ipinterface.nodeid=? " + "AND (ipinterface.ismanaged!='D')";

    /**
     * Default object to collect if "oid" property not available.
     */
    private static final String DEFAULT_OBJECT_IDENTIFIER = ".1.3.6.1.2.1.1.2"; // MIB-II
                                                                                // System
                                                                                // Object
                                                                                // Id

    /**
     * Object identifier used to retrieve interface count.
     */
    private static final String INTERFACES_IFNUMBER = ".1.3.6.1.2.1.2.1"; // MIB-II
                                                                            // interfaces.ifNumber

    /**
     * Valid values for the 'snmpStorageFlag' attribute in datacollection-config
     * xml file.
     * 
     * "primary" = only primary SNMP interface should be collected and stored
     * "all" = all primary SNMP interfaces should be collected and stored
     */
    private static String SNMP_STORAGE_PRIMARY = "primary";

    private static String SNMP_STORAGE_ALL = "all";

    private static String SNMP_STORAGE_SELECT = "select";

    /**
     * This defines the default maximum number of variables the collector is
     * permitted to pack into a single outgoing PDU. This value is intentionally
     * kept relatively small in order to communicate successfully with the
     * largest possible number of agents.
     */
    private static int DEFAULT_MAX_VARS_PER_PDU = 10;

    /**
     * Max number of variables permitted in a single outgoing SNMP PDU request..
     */
    private int m_maxVarsPerPdu;

    /**
     * Path to SNMP RRD file repository.
     */
    private String m_rrdPath;

    /**
     * Local host name
     */
    private String m_host;

    /* -------------------------------------------------------------- */
    /* Attribute key names */
    /* -------------------------------------------------------------- */

    /**
     * Interface attribute key used to store the interface's JoeSNMP SnmpPeer
     * object.
     */
    static final String SNMP_PEER_KEY = "org.opennms.netmgt.collectd.SnmpCollector.SnmpPeer";

    /**
     * Interface attribute key used to store the number of interfaces configured
     * on the remote host.
     */
    static final String INTERFACE_COUNT_KEY = "org.opennms.netmgt.collectd.SnmpCollector.ifCount";

    /**
     * Interface attribute key used to store the map of IfInfo objects which
     * hold data about each interface on a particular node.
     */
    static String IF_MAP_KEY = "org.opennms.netmgt.collectd.SnmpCollector.ifMap";

    /**
     * Interface attribute key used to store a NodeInfo object which holds data
     * about the node being polled.
     */
    static String NODE_INFO_KEY = "org.opennms.netmgt.collectd.SnmpCollector.nodeInfo";

    /**
     * Interface attribute key used to store the data collection scheme to be
     * followed. Two possible values: SNMP_STORAGE_PRIMARY = "primary"
     * SNMP_STORAGE_ALL = "all" SNMP_STORAGE_SELECT = "select"
     */
    static String SNMP_STORAGE_KEY = "org.opennms.netmgt.collectd.SnmpCollector.snmpStorage";

    /**
     * Interface attribute key used to store configured value for the maximum
     * number of variables permitted in a single outgoing SNMP PDU request.
     */
    static String MAX_VARS_PER_PDU_STORAGE_KEY = "org.opennms.netmgt.collectd.SnmpCollector.maxVarsPerPdu";

    /**
     * <P>
     * Returns the name of the service that the plug-in collects ("SNMP").
     * </P>
     * 
     * @return The service that the plug-in collects.
     */
    public String serviceName() {
        return SERVICE_NAME;
    }

    /**
     * <P>
     * Initialize the service collector.
     * </P>
     * 
     * <P>
     * During initialization the SNMP collector:
     *  - Initializes various configuration factories. - Verifies access to the
     * database - Verifies access to RRD file repository - Verifies access to
     * JNI RRD shared library - Determines if SNMP to be stored for only the
     * node'sprimary interface or for all interfaces.
     * </P>
     * 
     * @param parameters
     *            Not currently used.
     * 
     * @exception RuntimeException
     *                Thrown if an unrecoverable error occurs that prevents the
     *                plug-in from functioning.
     * 
     */
    public void initialize(Map parameters) {
        // Log4j category
        //
        Category log = ThreadCategory.getInstance(getClass());

        // Get local host name (used when generating threshold events)
        //
        try {
            m_host = InetAddress.getLocalHost().getHostName();
        } catch (UnknownHostException e) {
            if (log.isEnabledFor(Priority.WARN))
                log.warn("initialize: Unable to resolve local host name.", e);
            m_host = "unresolved.host";
        }

        // Initialize the SnmpPeerFactory
        //
        try {
            SnmpPeerFactory.reload();
        } catch (MarshalException ex) {
            if (log.isEnabledFor(Priority.FATAL))
                log.fatal("initialize: Failed to load SNMP configuration", ex);
            throw new UndeclaredThrowableException(ex);
        } catch (ValidationException ex) {
            if (log.isEnabledFor(Priority.FATAL))
                log.fatal("initialize: Failed to load SNMP configuration", ex);
            throw new UndeclaredThrowableException(ex);
        } catch (IOException ex) {
            if (log.isEnabledFor(Priority.FATAL))
                log.fatal("initialize: Failed to load SNMP configuration", ex);
            throw new UndeclaredThrowableException(ex);
        }

        // Initialize the DataCollectionConfigFactory
        //
        try {
            DataCollectionConfigFactory.reload();

        } catch (MarshalException ex) {