Class Progress

  • All Implemented Interfaces:
    java.lang.Runnable
    Direct Known Subclasses:
    ExportProgress, PrinterJobProgress

    public abstract class Progress
    extends java.lang.Object
    implements java.lang.Runnable
    Class for all progresses, which should be handled as a Progress of the report viewer. A progress encapsulates a special task with a state (such as idle, running or complete) and a value (23 of 120) of its progress. To start the progress call the startProgress() method and the progress will perform its run method. In this method call setProgress(int), setTotalProgress(int), setStatus(int) to propagate the status of the progress. The progress will be registered at the ProgressPool and will inform its listeners about property changes such as its status, current step and total steps. Depending on the progress type the progress will be displayed at the StatusBar or not.
    Since:
    7.0
    • Field Summary

      Fields 
      Modifier and Type Field Description
      static java.lang.String PROP_PROGRESS_INDETERMINATE
      The property ProgressIndeterminate for PropertyChangeEvents
      static java.lang.String PROP_PROGRESS_STATUS
      The property ProgressStatus for PropertyChangeEvents
      static java.lang.String PROP_PROGRESS_STEP
      The property ProgressStep for PropertyChangeEvents
      static java.lang.String PROP_PROGRESS_TOTAL
      The property ProgressTotal for PropertyChangeEvents
      protected java.beans.PropertyChangeSupport propertySupporter
      FOR INTERNAL USE ONLY
      static int STATUS_CANCELED
      The progress was canceled
      static int STATUS_COMPLETED
      The progress was successfully completed
      static int STATUS_ERROR
      The progress was canceled due to an error
      static int STATUS_IDLE
      The progress idles
      static int STATUS_INITIALIZED
      The progress has been created but has not been started yet
      static int STATUS_NOT_INITIALIZED
      The progress has not been created yet
      static int STATUS_RUNNING
      The progress is running
      static int TYPE_EXPORT
      The type is export progress, which means the progress will be shown as export progress in the status bar
      static int TYPE_INVISIBLE
      The type is invisible, do not show this progress in the status bar *
      static int TYPE_PAGELOADER
      The type is navigation progress, which means the progress will be shown as navigation progress in the status bar
      static int TYPE_PRINT
      The type is print progress, which means the progress will be shown as printing progress in the status bar
      static int TYPE_SEARCH
      The type is search progress, which means the progress will be shown as search progress in the status bar
    • Constructor Summary

      Constructors 
      Constructor Description
      Progress​(ReportView reportView, int type)
      Creates a new progress object with the given type and sets it as being "indeterminate" (that is, a "busy"/"not busy" progress) or determinate (that is, with clearly defined steps - step 1 of 5, step 2 of 5, etc.)
      Progress​(java.awt.Component parent, ViewerContext viewerContext, int type)
      Creates a new progress object with the given type and sets it as being "indeterminate" (that is, a "busy"/"not busy" progress) or determinate (that is, with clearly defined steps - step 1 of 5, step 2 of 5, etc.)
    • Method Summary

      All Methods Instance Methods Abstract Methods Concrete Methods 
      Modifier and Type Method Description
      void addPropertyChangeListener​(java.beans.PropertyChangeListener l)
      Adds a PropertyChangeListener to this progress.
      abstract void cancel()
      Call this method to force a cancel of the progress - which must also set both of the states "finished" and "canceled" to true.
      protected void cleanUp()
      Final clean up of the progress: unregister all property change listeners, etc.
      java.lang.String getErrorMessage()
      Returns the last error message of this Progress.
      abstract java.lang.String getName()
      The name of the daemon thread.
      int getProgress()
      Use this method to get the current step of this progress .
      ReportView getReportView()
      Returns the ReportView to which this progress belongs.
      int getStatus()
      Returns the status of this Progress.
      int getTotalProgress()
      Use this method to get the total steps (e.g. pages) to go.
      int getType()
      Returns the type of the progress, which can be one of the following types.
      boolean isCanceled()
      Returns whether this progress has been canceled - progresses which can be canceled should overload this method.
      boolean isErrored()
      Returns whether this progress has been stopped due to an error - progresses which can be stopped due to an error should overload this method.
      boolean isFinished()
      Return true if the progress has stopped its task.
      boolean isIndeterminate()
      Returns whether this progress is indeterminate, that is, only a "busy" or "not busy" progress.
      void removePropertyChangeListener​(java.beans.PropertyChangeListener l)
      Removes a PropertyChangeListener from this progress.
      void setErrorMessage​(java.lang.String msg)
      Sets an error message for this progress to pass failure information to the viewer.
      void setIndeterminate​(boolean indeterminate)
      Set the status of the progress to indeterminate or determined.
      void setProgress​(int step)
      Use this method to set the progress and to inform all registered listeners about the current step.
      void setStatus​(int status)
      Call this method to set the status of this progress.
      void setTotalProgress​(int total)
      Use this method to inform all registered listeners about the total steps (e.g. pages) to go.
      void showError​(java.lang.Throwable th)
      Shows an error dialog for this error message.
      void startProgress()
      Call this method to start the progress.
      void waitUntilFinished()
      This method will block until the progress has finished it task.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
      • Methods inherited from interface java.lang.Runnable

        run
    • Field Detail

      • TYPE_PAGELOADER

        public static final int TYPE_PAGELOADER
        The type is navigation progress, which means the progress will be shown as navigation progress in the status bar
        Since:
        7.0
        See Also:
        Constant Field Values
      • TYPE_PRINT

        public static final int TYPE_PRINT
        The type is print progress, which means the progress will be shown as printing progress in the status bar
        Since:
        7.0
        See Also:
        Constant Field Values
      • TYPE_EXPORT

        public static final int TYPE_EXPORT
        The type is export progress, which means the progress will be shown as export progress in the status bar
        Since:
        7.0
        See Also:
        Constant Field Values
      • TYPE_SEARCH

        public static final int TYPE_SEARCH
        The type is search progress, which means the progress will be shown as search progress in the status bar
        Since:
        7.0
        See Also:
        Constant Field Values
      • TYPE_INVISIBLE

        public static final int TYPE_INVISIBLE
        The type is invisible, do not show this progress in the status bar *
        Since:
        7.0
        See Also:
        Constant Field Values
      • STATUS_NOT_INITIALIZED

        public static final int STATUS_NOT_INITIALIZED
        The progress has not been created yet
        Since:
        7.0
        See Also:
        Constant Field Values
      • STATUS_INITIALIZED

        public static final int STATUS_INITIALIZED
        The progress has been created but has not been started yet
        Since:
        7.0
        See Also:
        Constant Field Values
      • STATUS_RUNNING

        public static final int STATUS_RUNNING
        The progress is running
        Since:
        7.0
        See Also:
        Constant Field Values
      • STATUS_COMPLETED

        public static final int STATUS_COMPLETED
        The progress was successfully completed
        Since:
        7.0
        See Also:
        Constant Field Values
      • STATUS_CANCELED

        public static final int STATUS_CANCELED
        The progress was canceled
        Since:
        7.0
        See Also:
        Constant Field Values
      • STATUS_ERROR

        public static final int STATUS_ERROR
        The progress was canceled due to an error
        Since:
        7.0
        See Also:
        Constant Field Values
      • STATUS_IDLE

        public static final int STATUS_IDLE
        The progress idles
        Since:
        7.0
        See Also:
        Constant Field Values
      • PROP_PROGRESS_STATUS

        public static final java.lang.String PROP_PROGRESS_STATUS
        The property ProgressStatus for PropertyChangeEvents
        Since:
        7.0
        See Also:
        Constant Field Values
      • PROP_PROGRESS_TOTAL

        public static final java.lang.String PROP_PROGRESS_TOTAL
        The property ProgressTotal for PropertyChangeEvents
        Since:
        7.0
        See Also:
        Constant Field Values
      • PROP_PROGRESS_STEP

        public static final java.lang.String PROP_PROGRESS_STEP
        The property ProgressStep for PropertyChangeEvents
        Since:
        7.0
        See Also:
        Constant Field Values
      • PROP_PROGRESS_INDETERMINATE

        public static final java.lang.String PROP_PROGRESS_INDETERMINATE
        The property ProgressIndeterminate for PropertyChangeEvents
        Since:
        7.0
        See Also:
        Constant Field Values
      • propertySupporter

        protected final java.beans.PropertyChangeSupport propertySupporter
        FOR INTERNAL USE ONLY
    • Constructor Detail

      • Progress

        public Progress​(ReportView reportView,
                        int type)
        Creates a new progress object with the given type and sets it as being "indeterminate" (that is, a "busy"/"not busy" progress) or determinate (that is, with clearly defined steps - step 1 of 5, step 2 of 5, etc.) The Progress will register itself to the viewer ProgressPool, which handles all progresses.
        Parameters:
        reportView - The ReportView of this progress.
        type - E.g. NAVIGATION, PRINT, EXPORT, SEARCH or a custom defined constant.
        Since:
        7.0
      • Progress

        public Progress​(java.awt.Component parent,
                        ViewerContext viewerContext,
                        int type)
        Creates a new progress object with the given type and sets it as being "indeterminate" (that is, a "busy"/"not busy" progress) or determinate (that is, with clearly defined steps - step 1 of 5, step 2 of 5, etc.) This Progress will NOT registered to the viewer ProgressPool. It is useful for export without report preview.
        Parameters:
        parent - Component, used for showError
        viewerContext - ViewerContext, used for showError
        type - E.g. NAVIGATION, PRINT, EXPORT, SEARCH or a custom defined constant.
        Since:
        7.6
    • Method Detail

      • startProgress

        public final void startProgress()
        Call this method to start the progress. The progress will register itself at the ProgressPool of the Viewer.
        Throws:
        ViewerException - when progress is already running
        Since:
        7.0
      • getName

        public abstract java.lang.String getName()
        The name of the daemon thread.
        Returns:
        the name of the daemon thread.
        Since:
        7.0
      • cancel

        public abstract void cancel()
        Call this method to force a cancel of the progress - which must also set both of the states "finished" and "canceled" to true. Please note: some progresses may not be stoppable.
        Since:
        7.0
      • waitUntilFinished

        public void waitUntilFinished()
        This method will block until the progress has finished it task.
        Since:
        7.0
      • isIndeterminate

        public boolean isIndeterminate()
        Returns whether this progress is indeterminate, that is, only a "busy" or "not busy" progress. If not, this progress has specific steps and can be determined how far it is finished.
        Returns:
        Whether this progress is indeterminate, that is, only a "busy" or "not busy" progress.
        Since:
        7.0
      • setIndeterminate

        public void setIndeterminate​(boolean indeterminate)
        Set the status of the progress to indeterminate or determined.
        Parameters:
        indeterminate - True if the progress should be indeterminate.
        Since:
        7.0
      • isFinished

        public boolean isFinished()
        Return true if the progress has stopped its task. The status of the Progress can be complete, canceled or error.
        Returns:
        whether the progress has stopped
        Since:
        7.0
      • isCanceled

        public boolean isCanceled()
        Returns whether this progress has been canceled - progresses which can be canceled should overload this method.
        Returns:
        Whether this progress has been canceled
        Since:
        7.0
      • isErrored

        public boolean isErrored()
        Returns whether this progress has been stopped due to an error - progresses which can be stopped due to an error should overload this method.
        Returns:
        Whether this progress has been stopped due to an error
        Since:
        7.0
      • setTotalProgress

        public void setTotalProgress​(int total)
        Use this method to inform all registered listeners about the total steps (e.g. pages) to go. If total is set to zero the progress will be declared as inactive (status = Progress.STATUS_IDLE).
        Parameters:
        total - steps to go
        Since:
        7.0
      • getTotalProgress

        public int getTotalProgress()
        Use this method to get the total steps (e.g. pages) to go.
        Returns:
        steps to go
        Since:
        7.0
      • setProgress

        public void setProgress​(int step)
        Use this method to set the progress and to inform all registered listeners about the current step.
        Parameters:
        step - Steps made in the progress so far (1-based)
        Since:
        7.0
      • getProgress

        public int getProgress()
        Use this method to get the current step of this progress .
        Returns:
        current step of the progress
        Since:
        7.0
      • getReportView

        public ReportView getReportView()
        Returns the ReportView to which this progress belongs.
        Returns:
        The ReportView of this progress.
        Since:
        7.0
      • getErrorMessage

        public java.lang.String getErrorMessage()
        Returns the last error message of this Progress.
        Returns:
        The last error of this Progress.
        Since:
        7.0
      • setErrorMessage

        public void setErrorMessage​(java.lang.String msg)
        Sets an error message for this progress to pass failure information to the viewer.
        Parameters:
        msg - error message
        Since:
        7.0
      • showError

        public void showError​(java.lang.Throwable th)
        Shows an error dialog for this error message. If there is no ReportView it will print a stacktrace to the console. It is calling setErrorMessage(String) and setStatus(STATUS_ERROR) before the error message is show.
        Parameters:
        th - The exception to show in the error dialog.
        Since:
        7.0
        See Also:
        setErrorMessage(String), setStatus(int)
      • addPropertyChangeListener

        public void addPropertyChangeListener​(java.beans.PropertyChangeListener l)
        Adds a PropertyChangeListener to this progress. All registered listeners will be informed if the status of the progress changes.
        Parameters:
        l - PropertyChangeListener
        Since:
        7.0
      • removePropertyChangeListener

        public void removePropertyChangeListener​(java.beans.PropertyChangeListener l)
        Removes a PropertyChangeListener from this progress.
        Parameters:
        l - PropertyChangeListener
        Since:
        7.0
      • cleanUp

        protected void cleanUp()
        Final clean up of the progress: unregister all property change listeners, etc.
        Since:
        8.0