IpAddrTableEntry.java

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// This file is part of the OpenNMS(R) Application.
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package org.infosec.ismp.collectd.snmp;

import java.net.InetAddress;

/**
 * <P>
 * The IpAddrTableEntry class is designed to hold all the MIB-II information for
 * one entry in the ipAddrTable. The table effectively contains a list of these
 * entries, each entry having information about one address. The entry contains
 * an IP Address, its netmask, interface binding, broadcast address, and maximum
 * packet reassembly size.
 * </P>
 * 
 * <P>
 * This object is used by the IpAddrTable to hold infomation single entries in
 * the table. See the IpAddrTable documentation form more information.
 * </P>
 * 
 * @author <A HREF="mailto:sowmya@opennms.org">Sowmya </A>
 * @author <A HREF="mailto:weave@oculan.com">Weave </A>
 * @author <A>Jon Whetzel </A>
 * @author <A HREF="http://www.opennms.org/">OpenNMS </A>
 * 
 * 
 * @see IpAddrTable
 * @see <A HREF="http://www.ietf.org/rfc/rfc1213.txt">RFC1213 </A>
 */
public final class IpAddrTableEntry extends SnmpTableEntry {
    // Lookup strings for specific table entries
    //
    public final static String IP_ADDR_ENT_ADDR = "ipAdEntAddr";

    public final static String IP_ADDR_IF_INDEX = "ipAdEntIfIndex";

    public final static String IP_ADDR_ENT_NETMASK = "ipAdEntNetMask";

    public final static String IP_ADDR_ENT_BCASTADDR = "ipAdEntBcastAddr";

    public static NamedSnmpVar[] ms_elemList = null;

    /**
     * <P>
     * Initialize the element list for the class. This is class wide data, but
     * will be used by each instance.
     * </P>
     */
    static {
        // Array size has changed from 5 to 4...no longer going after
        // ipAdEntReasmMaxSize variable because we aren't currently using
        // it and not all agents implement it which causes the collection
        // of the ipAddrTable to fail
        IpAddrTableEntry.ms_elemList = (new NamedSnmpVar[4]);
        int ndx = 0;

        ms_elemList[ndx++] = new NamedSnmpVar(NamedSnmpVar.SNMPIPADDRESS, IP_ADDR_ENT_ADDR, ".1.3.6.1.2.1.4.20.1.1", 1);
        ms_elemList[ndx++] = new NamedSnmpVar(NamedSnmpVar.SNMPINT32, IP_ADDR_IF_INDEX, ".1.3.6.1.2.1.4.20.1.2", 2);
        ms_elemList[ndx++] = new NamedSnmpVar(NamedSnmpVar.SNMPIPADDRESS, IP_ADDR_ENT_NETMASK, ".1.3.6.1.2.1.4.20.1.3", 3);
        ms_elemList[ndx++] = new NamedSnmpVar(NamedSnmpVar.SNMPINT32, IP_ADDR_ENT_BCASTADDR, ".1.3.6.1.2.1.4.20.1.4", 4);
        // ms_elemList[ndx++] = new NamedSnmpVar(NamedSnmpVar.SNMPINT32,
        // IP_ADDR_ENT_REASM_MAXSIZE, ".1.3.6.1.2.1.4.20.1.5", 5);
    }

    /**
     * <P>
     * The TABLE_OID is the object identifier that represents the root of the IP
     * Address table in the MIB forest.
     * </P>
     */
    public static final String TABLE_OID = ".1.3.6.1.2.1.4.20.1"; // start of
                                                                    // table
                                                                    // (GETNEXT)

    /**
     * <P>
     * The class constructor used to initialize the object to its initial state.
     * Although the object's member variables can change after an instance is
     * created, this constructor will initialize all the variables as per their
     * named variable from the passed array of SNMP varbinds.
     * </P>
     * 
     * <P>
     * If the information in the object should not be modified then a <EM>final
     * </EM> modifier can be applied to the created object.
     * </P>
     * 
     * @param vars
     *            The array of variable bindings.
     */
    public IpAddrTableEntry() {
        super(ms_elemList);
    }

    public InetAddress getIpAdEntAddr() {
        return getIPAddress(IpAddrTableEntry.IP_ADDR_ENT_ADDR);
    }

    public Integer getIpAdEntIfIndex() {
        return getInt32(IpAddrTableEntry.IP_ADDR_IF_INDEX);
    }

    public InetAddress getIpAdEntNetMask() {
        return getIPAddress(IpAddrTableEntry.IP_ADDR_ENT_NETMASK);
    }
    
    public InetAddress getIpAdEntBcastAddr() {
        return getIPAddress(IpAddrTableEntry.IP_ADDR_ENT_BCASTADDR);
    }

    
}