Package org.opennms.netmgt.eventd.datablock

Class EventKey

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Cloneable, java.lang.Comparable<EventKey>, java.util.Map<java.lang.String,​java.lang.Object>
    public class EventKey
extends java.util.LinkedHashMap<java.lang.String,​java.lang.Object>
implements java.io.Serializable, java.lang.Comparable<EventKey>
     The key for an event - it extends the LinkedHashMap and basically is a
  map of name/value pairs of the 'maskelements' block in the event.
  While the names are maskelement names,
  - if the event is a 'org.opennms.netmgt.xml.eventconf.Event',
    the maskvalue list is taken as the value
  - if the event is an 'org.opennms.netmgt.xml.event.Event',
    the value in the event for the mask element is used as the value.

  This hashtable is pretty much constant once constructed - so the hashcode
  is evaluated once at construction and reused(if new values are added or
  values changed, hashcode is re-evaluated)
    Author:
    Sowmya Nataraj , OpenNMS.org
    See Also:
    Serialized Form

    • Nested Class Summary

      • Nested classes/interfaces inherited from class java.util.AbstractMap

        java.util.AbstractMap.SimpleEntry<K extends java.lang.Object,​V extends java.lang.Object>, java.util.AbstractMap.SimpleImmutableEntry<K extends java.lang.Object,​V extends java.lang.Object>

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static java.lang.String TAG_HOST
      The event host xml tag
      static java.lang.String TAG_INTERFACE
      The event interface xml tag
      static java.lang.String TAG_NODEID
      The event nodeid xml tag
      static java.lang.String TAG_SERVICE
      The event service xml tag
      static java.lang.String TAG_SNMP_COMMUNITY
      The SNMP community xml tag
      static java.lang.String TAG_SNMP_EID
      The SNMP EID xml tag
      static java.lang.String TAG_SNMP_GENERIC
      The SNMP generic xml tag
      static java.lang.String TAG_SNMP_SPECIFIC
      The SNMP specific xml tag
      static java.lang.String TAG_SNMPHOST
      The event snmp host xml tag
      static java.lang.String TAG_SOURCE
      The event source xml tag
      static java.lang.String TAG_UEI
      The UEI xml tag

    • Constructor Summary

      Constructors 
      Constructor Description
      EventKey()
      Default constructor for this class
      EventKey​(int initCapacity)
      Constructor for this class
      EventKey​(int initCapacity, float loadFactor)
      Constructor for this class
      EventKey​(java.util.Map<java.lang.String,​java.lang.Object> maskelements)
      Constructor for this class
      EventKey​(Event event)
      Constructor for this class
      EventKey​(Event event)
      Constructor for this class

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void clear()
      Override to re-evaluate hashcode
      int compareTo​(EventKey obj)
      Implementation for the Comparable interface
      static java.lang.String getMaskElementValue​(Event event, java.lang.String mename)
      Get the value of the mask element for this event.
      int hashCode()
      Overrides the 'hashCode()' method in the superclass
      java.lang.Object put​(java.lang.String key, java.lang.Object value)
      Override to re-evaluate hashcode
      void putAll​(java.util.Map<? extends java.lang.String,​? extends java.lang.Object> m)
      Override to re-evaluate hashcode
      java.lang.Object remove​(java.lang.Object key)
      Override to re-evaluate hashcode
      java.lang.String toString()
      Returns a String equivalent of this object

      • Methods inherited from class java.util.LinkedHashMap

        containsValue, entrySet, forEach, get, getOrDefault, keySet, removeEldestEntry, replaceAll, values

      • Methods inherited from class java.util.HashMap

        clone, compute, computeIfAbsent, computeIfPresent, containsKey, isEmpty, merge, putIfAbsent, remove, replace, replace, size

      • Methods inherited from class java.util.AbstractMap

        equals

      • Methods inherited from class java.lang.Object

        finalize, getClass, notify, notifyAll, wait, wait, wait

      • Methods inherited from interface java.util.Map

        compute, computeIfAbsent, computeIfPresent, containsKey, equals, isEmpty, merge, putIfAbsent, remove, replace, replace, size

    • Field Detail

      • TAG_SOURCE

        public static final java.lang.String TAG_SOURCE
        The event source xml tag
        See Also:
        Constant Field Values

      • TAG_NODEID

        public static final java.lang.String TAG_NODEID
        The event nodeid xml tag
        See Also:
        Constant Field Values

      • TAG_HOST

        public static final java.lang.String TAG_HOST
        The event host xml tag
        See Also:
        Constant Field Values

      • TAG_INTERFACE

        public static final java.lang.String TAG_INTERFACE
        The event interface xml tag
        See Also:
        Constant Field Values

      • TAG_SNMPHOST

        public static final java.lang.String TAG_SNMPHOST
        The event snmp host xml tag
        See Also:
        Constant Field Values

      • TAG_SERVICE

        public static final java.lang.String TAG_SERVICE
        The event service xml tag
        See Also:
        Constant Field Values

      • TAG_SNMP_EID

        public static final java.lang.String TAG_SNMP_EID
        The SNMP EID xml tag
        See Also:
        Constant Field Values

      • TAG_SNMP_SPECIFIC

        public static final java.lang.String TAG_SNMP_SPECIFIC
        The SNMP specific xml tag
        See Also:
        Constant Field Values

      • TAG_SNMP_GENERIC

        public static final java.lang.String TAG_SNMP_GENERIC
        The SNMP generic xml tag
        See Also:
        Constant Field Values

      • TAG_SNMP_COMMUNITY

        public static final java.lang.String TAG_SNMP_COMMUNITY
        The SNMP community xml tag
        See Also:
        Constant Field Values

    • Constructor Detail

      • EventKey

        public EventKey()
        Default constructor for this class

      • EventKey

        public EventKey​(int initCapacity)
        Constructor for this class
        Parameters:
        initCapacity - a int.
        See Also:
        HashMap(int)

      • EventKey

        public EventKey​(int initCapacity,
                float loadFactor)
        Constructor for this class
        Parameters:
        initCapacity - a int.
        loadFactor - a float.
        See Also:
        HashMap(int, float)

      • EventKey

        public EventKey​(java.util.Map<java.lang.String,​java.lang.Object> maskelements)
        Constructor for this class
        Parameters:
        maskelements - the maskelements that should form this key

      • EventKey

        public EventKey​(Event event)
        Constructor for this class
        Parameters:
        event - the config event that this will be the key for

      • EventKey

        public EventKey​(Event event)
        Constructor for this class
        Parameters:
        event - the event that this will be the key for

    • Method Detail

      • clear

        public void clear()
        Override to re-evaluate hashcode
        Specified by:
        clear in interface java.util.Map<java.lang.String,​java.lang.Object>
        Overrides:
        clear in class java.util.LinkedHashMap<java.lang.String,​java.lang.Object>
        See Also:
        HashMap.clear()

      • put

        public java.lang.Object put​(java.lang.String key,
                            java.lang.Object value)
        Override to re-evaluate hashcode
        Specified by:
        put in interface java.util.Map<java.lang.String,​java.lang.Object>
        Overrides:
        put in class java.util.HashMap<java.lang.String,​java.lang.Object>
        See Also:
        HashMap.put(Object, Object)

      • putAll

        public void putAll​(java.util.Map<? extends java.lang.String,​? extends java.lang.Object> m)
        Override to re-evaluate hashcode
        Specified by:
        putAll in interface java.util.Map<java.lang.String,​java.lang.Object>
        Overrides:
        putAll in class java.util.HashMap<java.lang.String,​java.lang.Object>
        See Also:
        HashMap.putAll(Map)

      • remove

        public java.lang.Object remove​(java.lang.Object key)
        Override to re-evaluate hashcode
        Specified by:
        remove in interface java.util.Map<java.lang.String,​java.lang.Object>
        Overrides:
        remove in class java.util.HashMap<java.lang.String,​java.lang.Object>
        See Also:
        HashMap.remove(Object)

      • compareTo

        public int compareTo​(EventKey obj)
        Implementation for the Comparable interface
        Specified by:
        compareTo in interface java.lang.Comparable<EventKey>
        Parameters:
        obj - a EventKey object.
        Returns:
        a int.
        See Also:
        Comparable.compareTo(Object)

      • hashCode

        public int hashCode()
        Overrides the 'hashCode()' method in the superclass
        Specified by:
        hashCode in interface java.util.Map<java.lang.String,​java.lang.Object>
        Overrides:
        hashCode in class java.util.AbstractMap<java.lang.String,​java.lang.Object>
        Returns:
        a hash code for this object

      • toString

        public java.lang.String toString()
        Returns a String equivalent of this object
        Overrides:
        toString in class java.util.AbstractMap<java.lang.String,​java.lang.Object>
        Returns:
        a String equivalent of this object

      • getMaskElementValue

        public static java.lang.String getMaskElementValue​(Event event,
                                                   java.lang.String mename)
         Get the value of the mask element for this event.

 
 Note:
 
  The only event elements that can occur to
  uniquely identify an event are -
  uei, source, host, snmphost, nodeid, interface, service, id(SNMP EID), specific, generic, community
        Parameters:
        event - a Event object.
        mename - a String object.
        Returns:
        value of the event element