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LiveAllocResultsPanel.java

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common
 * Development and Distribution License("CDDL") (collectively, the
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 * http://www.netbeans.org/cddl-gplv2.html
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package org.netbeans.lib.profiler.ui.memory;

import org.netbeans.lib.profiler.TargetAppRunner;
import org.netbeans.lib.profiler.client.ClientUtils;
import org.netbeans.lib.profiler.global.CommonConstants;
import org.netbeans.lib.profiler.global.ProfilingSessionStatus;
import org.netbeans.lib.profiler.results.memory.MemoryCCTProvider;
import org.netbeans.lib.profiler.ui.LiveResultsPanel;
import org.netbeans.lib.profiler.ui.UIUtils;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.util.ResourceBundle;
import javax.swing.*;
import javax.swing.event.PopupMenuEvent;
import javax.swing.event.PopupMenuListener;


/**
 * This class implements presentation frames for Object Allocation Profiling.
 *
 * @author Misha Dmitriev
 * @author Ian Formanek
 * @author Jiri Sedlacek
 */
00067 public class LiveAllocResultsPanel extends AllocResultsPanel implements LiveResultsPanel, ActionListener {
    //~ Static fields/initializers -----------------------------------------------------------------------------------------------

    // -----
    // I18N String constants
    private static final ResourceBundle messages = ResourceBundle.getBundle("org.netbeans.lib.profiler.ui.memory.Bundle"); // NOI18N
    private static final String GO_SOURCE_POPUP_ITEM_NAME = messages.getString("AllocResultsPanel_GoSourcePopupItemName"); // NOI18N
    private static final String SHOW_STACK_TRACES_POPUP_ITEM_NAME = messages.getString("AllocResultsPanel_LiveShowStackTracesPopupItemName"); // NOI18N
    private static final String LOG_CLASS_HISTORY = messages.getString("LiveResultsPanel_LogClassHistory"); // NOI18N
                                                                                                            // -----

    //~ Instance fields ----------------------------------------------------------------------------------------------------------

    protected TargetAppRunner runner;

    //common actions handler
    ActionsHandler handler;
    private JMenuItem popupShowStacks;
    private JMenuItem startHisto;
    private JPopupMenu memoryResPopupMenu;
    private ProfilingSessionStatus status;
    private boolean updateResultsInProgress = false;
    private boolean updateResultsPending = false;

    //~ Constructors -------------------------------------------------------------------------------------------------------------

    public LiveAllocResultsPanel(TargetAppRunner runner, MemoryResUserActionsHandler actionsHandler) {
        this(runner, actionsHandler, null);
    }

    public LiveAllocResultsPanel(TargetAppRunner runner, MemoryResUserActionsHandler actionsHandler, ActionsHandler handler) {
        super(actionsHandler);
        this.status = runner.getProfilerClient().getStatus();
        this.runner = runner;
        this.handler = handler;
    }

    //~ Methods ------------------------------------------------------------------------------------------------------------------

    public BufferedImage getViewImage(boolean onlyVisibleArea) {
        if (onlyVisibleArea) {
            return UIUtils.createScreenshot(jScrollPane);
        } else {
            return UIUtils.createScreenshot(resTable);
        }
    }

    public String getViewName() {
        return "memory-allocations-live"; // NOI18N
    }

    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == popupShowStacks) {
            actionsHandler.showStacksForClass(selectedClassId, getSortingColumn(), getSortingOrder());
        } else if ((e.getSource() == startHisto) && (handler != null)) {
            handler.performAction("history logging",
                                  new Object[] { new Integer(selectedClassId), getClassName(selectedClassId), Boolean.FALSE }); // NOI18N
        }
    }

    public void fetchResultsFromTargetApp() throws ClientUtils.TargetAppOrVMTerminated {
        MemoryCCTProvider oacgb = runner.getProfilerClient().getMemoryCCTProvider();

        if (oacgb == null) {
            throw new ClientUtils.TargetAppOrVMTerminated(ClientUtils.TargetAppOrVMTerminated.VM);
        } else {
            totalAllocObjectsSize = oacgb.getAllocObjectNumbers();
            nTotalAllocObjects = runner.getProfilerClient().getAllocatedObjectsCountResults();

            // In some situations nInstrClasses can be already updated, but nTotalAllocObjects.length and/ort totalAllocObjectsSize - not yet.
            // Take measures to avoid ArrayIndexOutOfBoundsException.
            nTrackedItems = status.getNInstrClasses();

            if (nTrackedItems > nTotalAllocObjects.length) {
                nTrackedItems = nTotalAllocObjects.length;
            }

            if (nTrackedItems > totalAllocObjectsSize.length) {
                nTrackedItems = totalAllocObjectsSize.length;
            }

            // Operations necessary for correct bar representation of results
            maxValue = 0;
            nTotalBytes = 0;
            nTotalClasses = 0;

            for (int i = 0; i < nTrackedItems; i++) {
                if (maxValue < totalAllocObjectsSize[i]) {
                    maxValue = totalAllocObjectsSize[i];
                }

                nTotalBytes += totalAllocObjectsSize[i];
                nTotalClasses += nTotalAllocObjects[i];
            }

            if (handler != null) {
                handler.performAction("history update", new Object[] { nTotalAllocObjects, totalAllocObjectsSize }); // NOI18N
            }

            initDataUponResultsFetch();
        }
    }

    public boolean fitsVisibleArea() {
        return !jScrollPane.getVerticalScrollBar().isEnabled();
    }

    public void handleRemove() {
    }

    /**
     * Called when auto refresh is on and profiling session will finish
     * to give the panel chance to do some cleanup before asynchrounous
     * call to updateLiveResults() will happen.
     *
     * Currently it closes the context menu if open, which would otherwise
     * block updating the results.
     */
00185     public void handleShutdown() {
        // Profiling session will finish and context menu is opened, this would block last live results update -> menu will be closed
        if ((memoryResPopupMenu != null) && memoryResPopupMenu.isVisible()) {
            updateResultsPending = false; // clear the flag, updateLiveResults() will be called explicitely from outside
            memoryResPopupMenu.setVisible(false); // close the context menu
        }
    }

    // --- Save current View action support --------------------------------------
    public boolean hasView() {
        return resTable != null;
    }

    public boolean supports(int instrumentataionType) {
        return instrumentataionType == CommonConstants.INSTR_OBJECT_ALLOCATIONS;
    }

    public void updateLiveResults() {
        if ((memoryResPopupMenu != null) && memoryResPopupMenu.isVisible()) {
            updateResultsPending = true;

            return;
        }

        if (updateResultsInProgress == true) {
            return;
        }

        updateResultsInProgress = true;

        String selectedRowString = null;

        if (resTable != null) {
            int selectedRowIndex = resTable.getSelectedRow();

            if (selectedRowIndex >= resTable.getRowCount()) {
                selectedRowIndex = -1;
                resTable.clearSelection();
            }

            if (selectedRowIndex != -1) {
                selectedRowString = resTable.getValueAt(selectedRowIndex, 0).toString();
            }
        }

        try {
            if (runner.getProfilingSessionStatus().targetAppRunning) {
                reset();
                fetchResultsFromTargetApp();
            }

            prepareResults();

            if (selectedRowString != null) {
                resTable.selectRowByContents(selectedRowString, 0, false);
            }

            if ((resTable != null) && resTable.isFocusOwner()) {
                resTable.requestFocusInWindow(); // prevents results table from losing focus
            }
        } catch (ClientUtils.TargetAppOrVMTerminated targetAppOrVMTerminated) {
            targetAppOrVMTerminated.printStackTrace(System.err);
        }

        updateResultsInProgress = false;
    }

    protected String getClassName(int classId) {
        return status.getClassNames()[classId];
    }

    protected String[] getClassNames() {
        return status.getClassNames();
    }

    protected JPopupMenu getPopupMenu() {
        if (memoryResPopupMenu == null) {
            memoryResPopupMenu = new JPopupMenu();

            if (runner.getProfilerEngineSettings().getAllocStackTraceLimit() != 0) {
                memoryResPopupMenu.addSeparator();
                popupShowStacks = new JMenuItem();
                popupShowStacks.setText(SHOW_STACK_TRACES_POPUP_ITEM_NAME);
                memoryResPopupMenu.add(popupShowStacks);
                popupShowStacks.addActionListener(this);
            }

            memoryResPopupMenu.addSeparator();
            startHisto = new JMenuItem();
            startHisto.setText(LOG_CLASS_HISTORY);
            memoryResPopupMenu.add(startHisto);
            startHisto.addActionListener(this);
        }

        memoryResPopupMenu.addPopupMenuListener(new PopupMenuListener() {
                public void popupMenuCanceled(PopupMenuEvent e) {
                }

                public void popupMenuWillBecomeVisible(PopupMenuEvent e) {
                }

                public void popupMenuWillBecomeInvisible(PopupMenuEvent e) {
                    SwingUtilities.invokeLater(new Runnable() {
                            public void run() {
                                if (updateResultsPending) {
                                    updateLiveResults();
                                    updateResultsPending = false;
                                }
                            }
                        });
                }
            });

        return memoryResPopupMenu;
    }
}

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