Package com.streambase.sb.monitor

Class ThreadInfo

java.lang.Object
com.streambase.sb.monitor.ThreadInfo
All Implemented Interfaces:
Cloneable
public class ThreadInfo extends Object implements Cloneable
Represents information about a single thread in a StreamBase Server. Instances of this class should be retrieved from a Snapshot.
See Also:

  • Constructor Summary

    Constructors
    Constructor
    Description
    ThreadInfo(String n)
    Constructor

  • Method Summary

    Modifier and Type
    Method
    Description
    (package private) void
    calculate(Snapshot ms)
    Calculate values
    (package private) void
    clear()
    Clear thread information
    Object
    clone()
     
    (package private) void
    extractInfo(StatTuple st)
    extract thread info from the StatTuple, setting member data as appropriate
    (package private) void
    extractInfo(com.streambase.sb.monitor.StatTuplev3 st)
    Extract information from statistics tuple
    String
    getName()
    Returns the name of the thread.
    double
    getPercentCPU()
    Returns the percent of CPU used by this thread, in microseconds.
    double
    getPercentSystem()
    Returns the percent of system CPU time used by this thread, in microseconds.
    double
    getPercentUser()
    Returns the percent of user CPU time used by this thread, in microseconds.
    (package private) ThreadInfo
    getPreviousThreadInfo()
    Get previous thread info value
    int
    getSystemTimeDelta()
    Returns the system time spent by thread since the last Snapshot, in milliseconds.
    long
    getSystemTimeDeltaUS()
    Returns the system time spent by thread since the last Snapshot, in microseconds.
    int
    getSystemTimeTotal()
    Returns the system time spent by this thread since the StreamBase Server started, in millisecond.
    long
    getSystemTimeTotalUS()
    Returns the system time spent by this thread since the StreamBase Server started, in microsecond.
    int
    getUserTimeDelta()
    Returns the user time spent by thread since the last Snapshot, in millisecond.
    long
    getUserTimeDeltaUS()
    Returns the user time spent by thread since the last Snapshot, in microsecond.
    int
    getUserTimeTotal()
    Returns the user time spent by thread since the StreamBase Server started, in millisecond.
    long
    getUserTimeTotalUS()
    Returns the user time spent by thread since the StreamBase Server started, in microsecond.
    (package private) boolean
    isActive()
    Does the thread info contain valid data?
    (package private) void
    prettyPrint()
    Pretty-print a ThreadInfo object to the standard output.
    (package private) void
    saveForNextCycle()
    Save current results for next cycle
    String
    toString()
     

    Methods inherited from class java.lang.Object

    equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

  • Constructor Details

    • ThreadInfo

      ThreadInfo(String n)
      Constructor
      Parameters:
      n - thread name

  • Method Details

    • extractInfo

      void extractInfo(com.streambase.sb.monitor.StatTuplev3 st)
      Extract information from statistics tuple
      Parameters:
      st - statistics (v3)

    • extractInfo

      void extractInfo(StatTuple st)
      extract thread info from the StatTuple, setting member data as appropriate
      Parameters:
      st - statistic

    • getPreviousThreadInfo

      ThreadInfo getPreviousThreadInfo()
      Get previous thread info value
      Returns:
      previous value

    • isActive

      boolean isActive()
      Does the thread info contain valid data?
      Returns:
      true if data is valid

    • clone

      public Object clone()
      Overrides:
      clone in class Object

    • saveForNextCycle

      void saveForNextCycle()
      Save current results for next cycle

    • calculate

      void calculate(Snapshot ms)
      Calculate values
      Parameters:
      ms - snapshot

    • getName

      public String getName()
      Returns the name of the thread.
      Returns:
      the name of the thread

    • getUserTimeTotal

      public int getUserTimeTotal()
      Returns the user time spent by thread since the StreamBase Server started, in millisecond.
      Returns:
      the user time spent by thread since the StreamBase Server started

    • getUserTimeTotalUS

      public long getUserTimeTotalUS()
      Returns the user time spent by thread since the StreamBase Server started, in microsecond.
      Returns:
      the user time spent by thread since the StreamBase Server started
      Since:
      7.0

    • getUserTimeDelta

      public int getUserTimeDelta()
      Returns the user time spent by thread since the last Snapshot, in millisecond.
      Returns:
      the user time spent by thread since the last Snapshot

    • getUserTimeDeltaUS

      public long getUserTimeDeltaUS()
      Returns the user time spent by thread since the last Snapshot, in microsecond.
      Returns:
      the user time spent by thread since the last Snapshot
      Since:
      7.0

    • getSystemTimeTotal

      public int getSystemTimeTotal()
      Returns the system time spent by this thread since the StreamBase Server started, in millisecond.
      Returns:
      the system time spent by this thread since the StreamBase Server started

    • getSystemTimeTotalUS

      public long getSystemTimeTotalUS()
      Returns the system time spent by this thread since the StreamBase Server started, in microsecond.
      Returns:
      the system time spent by this thread since the StreamBase Server started
      Since:
      7.0

    • getSystemTimeDelta

      public int getSystemTimeDelta()
      Returns the system time spent by thread since the last Snapshot, in milliseconds.
      Returns:
      the system time spent by thread since the last Snapshot

    • getSystemTimeDeltaUS

      public long getSystemTimeDeltaUS()
      Returns the system time spent by thread since the last Snapshot, in microseconds.
      Returns:
      the system time spent by thread since the last Snapshot
      Since:
      7.0

    • getPercentCPU

      public double getPercentCPU()
      Returns the percent of CPU used by this thread, in microseconds.
      Returns:
      the percent of CPU used by this thread

    • getPercentUser

      public double getPercentUser()
      Returns the percent of user CPU time used by this thread, in microseconds.
      Returns:
      the percent of user CPU time used by this thread

    • getPercentSystem

      public double getPercentSystem()
      Returns the percent of system CPU time used by this thread, in microseconds.
      Returns:
      the percent of system CPU time used by this thread

    • toString

      public String toString()
      Overrides:
      toString in class Object

    • prettyPrint

      void prettyPrint()
      Pretty-print a ThreadInfo object to the standard output.

    • clear

      void clear()
      Clear thread information