Module jdk.management.jfr
Package jdk.management.jfr

Class RecordingInfo

  • public final class RecordingInfo
extends Object
    Management representation of a Recording.
    Since:
    9
    See Also:
    Recording

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      static RecordingInfo from​(CompositeData cd)
      Returns a RecordingInfo represented by the specified CompositeData object.
      String getDestination()
      Returns destination path where data, for the recording associated with this RecordingInfo, should be written when the recording stops, or null if the recording should not be written.
      boolean getDumpOnExit()
      Returns if the recording associated with this RecordingInfo should be dumped to file when the JVM exits.
      long getDuration()
      Returns the desired duration, measured in seconds, of the recording associated with this RecordingInfo, or {code 0} if no duration has been set.
      long getId()
      Returns the unique ID for the recording associated with this RecordingInfo.
      long getMaxAge()
      Returns how many seconds data should be kept on disk, or 0 if data is to be kept forever.
      long getMaxSize()
      Returns the amount of data, measured in bytes, the recording associated with this RecordingInfo, should be kept on disk, before it's rotated away, or 0 if data is to be kept indefinitely.
      String getName()
      Returns the name of the recording associated with this RecordingInfo.
      Map<String,​String> getSettings()
      Returns the settings for the recording associated with this RecordingInfo.
      long getSize()
      Returns the amount data recorded by recording. associated with this RecordingInfo.
      long getStartTime()
      Returns start time of the recording associated with this RecordingInfo, measured as ms since epoch, or null if the recording hasn't started.
      String getState()
      Returns a String representation of state of the recording associated with this RecordingInfo.
      long getStopTime()
      Returns the actual or expected stop time of the recording associated with this RecordingInfo, measured as ms since epoch, or null if the expected or actual stop time is not known, which can only happen if the recording has not yet been stopped.
      boolean isToDisk()
      Returns true if the recording associated with this RecordingInfo should be flushed to disk, when memory buffers are full, false otherwise.
      String toString()
      Returns a string description of the recording associated with this RecordingInfo

    • Method Detail

      • getName

        public String getName()
        Returns the name of the recording associated with this RecordingInfo.
        Returns:
        the recording name, not null
        See Also:
        Recording.getName()

      • getId

        public long getId()
        Returns the unique ID for the recording associated with this RecordingInfo.
        Returns:
        the recording ID
        See Also:
        Recording.getId()

      • getDumpOnExit

        public boolean getDumpOnExit()
        Returns if the recording associated with this RecordingInfo should be dumped to file when the JVM exits.
        Returns:
        true if recording should be dumped on exit, false otherwise
        See Also:
        Recording.getDumpOnExit()

      • getMaxAge

        public long getMaxAge()
        Returns how many seconds data should be kept on disk, or 0 if data is to be kept forever.

        In-memory recordings are not affected by maximum age.

        Returns:
        how long data should be kept on disk, measured in seconds
        See Also:
        Recording.getMaxAge(), Recording.setToDisk(boolean)

      • getMaxSize

        public long getMaxSize()
        Returns the amount of data, measured in bytes, the recording associated with this RecordingInfo, should be kept on disk, before it's rotated away, or 0 if data is to be kept indefinitely.

        In-memory recordings are not affected by maximum size.

        Returns:
        the amount of data should be kept on disk, in bytes
        See Also:
        Recording.setToDisk(boolean), Recording.getMaxSize()

      • getState

        public String getState()
        Returns a String representation of state of the recording associated with this RecordingInfo.

        Valid return values are "NEW", "DELAYED", "STARTING", "RUNNING", "STOPPING", "STOPPED" and "CLOSED".

        Returns:
        the recording state, not null
        See Also:
        Enum.toString(), Recording.getState()

      • getStartTime

        public long getStartTime()
        Returns start time of the recording associated with this RecordingInfo, measured as ms since epoch, or null if the recording hasn't started.
        Returns:
        the start time of the recording, or null if the recording hasn't started
        See Also:
        Recording.getStartTime()

      • getStopTime

        public long getStopTime()
        Returns the actual or expected stop time of the recording associated with this RecordingInfo, measured as ms since epoch, or null if the expected or actual stop time is not known, which can only happen if the recording has not yet been stopped.
        Returns:
        the stop time of recording, or null if recording hasn't been stopped.
        See Also:
        Recording.getStopTime()

      • getSettings

        public Map<String,​String> getSettings()
        Returns the settings for the recording associated with this RecordingInfo.
        Returns:
        the recording settings, not null
        See Also:
        Recording.getSettings()

      • getDestination

        public String getDestination()
        Returns destination path where data, for the recording associated with this RecordingInfo, should be written when the recording stops, or null if the recording should not be written.
        Returns:
        the destination, or null if not set
        See Also:
        Recording.getDestination()

      • toString

        public String toString()
        Returns a string description of the recording associated with this RecordingInfo
        Overrides:
        toString in class Object
        Returns:
        description, not null

      • getSize

        public long getSize()
        Returns the amount data recorded by recording. associated with this RecordingInfo.
        Returns:
        the amount of recorded data, measured in bytes

      • isToDisk

        public boolean isToDisk()
        Returns true if the recording associated with this RecordingInfo should be flushed to disk, when memory buffers are full, false otherwise.
        Returns:
        true if recording is to disk, false otherwise

      • getDuration

        public long getDuration()
        Returns the desired duration, measured in seconds, of the recording associated with this RecordingInfo, or {code 0} if no duration has been set.
        Returns:
        the desired duration, or {code 0} if no duration has been set
        See Also:
        Recording.getDuration()

      • from

        public static RecordingInfo from​(CompositeData cd)
        Returns a RecordingInfo represented by the specified CompositeData object.

        The specified CompositeData must have the following item names and item types to be valid.

        Supported names and types in a specified CompositeData object
        Name Type
        id Long
        name String
        state String
        dumpOnExit Boolean
        size Long
        toDisk Boolean
        maxAge Long
        maxSize Long
        startTime Long
        stopTime Long
        destination String
        duration Long
        settings javax.management.openmbean.CompositeData[] whose element type is the mapped type for SettingDescriptorInfo as specified in the SettingDescriptorInfo.from(javax.management.openmbean.CompositeData) method.
        Parameters:
        cd - CompositeData representing the RecordingInfo to return
        Returns:
        the RecordingInfo represented by cd, or null if cd is null
        Throws:
        IllegalArgumentException - if cd does not represent a valid RecordingInfo