Package org.snmp4j.util

Class RetrievalEvent

java.lang.Object
java.util.EventObject
org.snmp4j.util.RetrievalEvent
All Implemented Interfaces:
Serializable
Direct Known Subclasses:
TableEvent, TreeEvent
public abstract class RetrievalEvent extends EventObject
The RetrievalEvent is an abstract class representing the result of one or more GET/GETNEXT/GETBULK requests.
Since:
1.8
Version:
1.8
Author:
Frank Fock
See Also:

  • Field Details

    • STATUS_OK

      public static final int STATUS_OK
      Retrieval operation was successful.
      See Also:

    • STATUS_TIMEOUT

      public static final int STATUS_TIMEOUT
      A request to the agent timed out.
      See Also:

    • STATUS_WRONG_ORDER

      public static final int STATUS_WRONG_ORDER
      The agent failed to return the objects in lexicographic order.
      See Also:

    • STATUS_REPORT

      public static final int STATUS_REPORT
      A report has been received from the agent.
      See Also:

    • STATUS_EXCEPTION

      public static final int STATUS_EXCEPTION
      An exception occurred during retrieval operation.
      See Also:

    • vbs

      protected VariableBinding[] vbs

    • status

      protected int status

    • userObject

      protected Object userObject

    • exception

      protected Exception exception

    • reportPDU

      protected PDU reportPDU

  • Constructor Details

    • RetrievalEvent

      protected RetrievalEvent(EventListener source, Object userObject)

    • RetrievalEvent

      public RetrievalEvent(org.snmp4j.util.TreeUtils.TreeRequest source, Object userObject, int status)
      Creates a retrieval event with a status.
      Parameters:
      source - the source of the event.
      userObject - the user object or null.
      status - one of the status constants defined for this object.

    • RetrievalEvent

      public RetrievalEvent(org.snmp4j.util.TreeUtils.TreeRequest source, Object userObject, Exception exception)
      Creates a retrieval event with an exception.
      Parameters:
      source - the source of the event.
      userObject - the user object or null.
      exception - an exception instance.

    • RetrievalEvent

      public RetrievalEvent(org.snmp4j.util.TreeUtils.TreeRequest source, Object userObject, PDU report)
      Creates a retrieval event with a report PDU.
      Parameters:
      source - the source of the event.
      userObject - the user object or null.
      report - a PDU of type PDU.REPORT.

    • RetrievalEvent

      public RetrievalEvent(ResponseListener source, Object userObject, VariableBinding[] variableBindings)
      Creates a retrieval event with row data.
      Parameters:
      source - the source of the event.
      userObject - the user object or null.
      variableBindings - an array of VariableBinding instances.

  • Method Details

    • getStatus

      public int getStatus()
      Gets the status of the table operation.
      Returns:
      one of the status constants defined for this object. STATUS_OK indicates success, all other values indicate failure of the operation which corresponds to a SNMP error status as defined by PDU.getErrorStatus().

    • isError

      public boolean isError()
      Indicates whether the event reports an error or not.
      Returns:
      true if the operation failed with an error.

    • getUserObject

      public Object getUserObject()
      Gets the user object that has been specified by the user when the retrieval operation that fired this event has been requested.
      Returns:
      an object instance if an user object has been specified or null otherwise.

    • getException

      public Exception getException()
      Gets the exception associated with this event.
      Returns:
      an Exception instance if there has been an exception instance associated with this event (getStatus() returns STATUS_EXCEPTION), or null otherwise.

    • getReportPDU

      public PDU getReportPDU()
      Gets the report PDU associated with this event.
      Returns:
      a ScopedPDU instance if there has been a report PDU instance associated with this event (getStatus() returns STATUS_REPORT), or null otherwise.

    • getErrorMessage

      public String getErrorMessage()
      Returns a textual error message for the error.
      Returns:
      an error message or an empty string if no error occurred.

    • toString

      public String toString()
      Overrides:
      toString in class EventObject