eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/view/sessions/SessionsViewPart.java

   1 // $Id$
   2 /**
   3  * Copyright (C) 2015 EDIT
   4  * European Distributed Institute of Taxonomy
   5  * http://www.e-taxonomy.eu
   6  *
   7  * The contents of this file are subject to the Mozilla Public License Version 1.1
   8  * See LICENSE.TXT at the top of this package for the full license terms.
   9  */
  10 package eu.etaxonomy.taxeditor.view.sessions;
  11
  12 import java.text.DecimalFormat;
  13 import java.util.Collection;
  14
  15 import net.sf.ehcache.Cache;
  16 import net.sf.ehcache.CacheManager;
  17 import net.sf.ehcache.statistics.LiveCacheStatistics;
  18
  19 import org.eclipse.jface.action.IMenuManager;
  20 import org.eclipse.jface.action.IToolBarManager;
  21 import org.eclipse.swt.SWT;
  22 import org.eclipse.swt.events.SelectionAdapter;
  23 import org.eclipse.swt.events.SelectionEvent;
  24 import org.eclipse.swt.layout.GridData;
  25 import org.eclipse.swt.layout.GridLayout;
  26 import org.eclipse.swt.widgets.Button;
  27 import org.eclipse.swt.widgets.Composite;
  28 import org.eclipse.swt.widgets.Label;
  29 import org.eclipse.swt.widgets.Table;
  30 import org.eclipse.swt.widgets.TableColumn;
  31 import org.eclipse.swt.widgets.TableItem;
  32 import org.eclipse.swt.widgets.Text;
  33 import org.eclipse.ui.part.ViewPart;
  34 import org.eclipse.wb.swt.SWTResourceManager;
  35
  36 import eu.etaxonomy.cdm.api.cache.CdmCacher;
  37 import eu.etaxonomy.taxeditor.model.AbstractUtility;
  38 import eu.etaxonomy.taxeditor.remoting.cache.CdmRemoteCacheManager;
  39 import eu.etaxonomy.taxeditor.session.ICdmEntitySession;
  40 import eu.etaxonomy.taxeditor.session.ICdmEntitySessionManager;
  41 import eu.etaxonomy.taxeditor.session.ICdmEntitySessionManagerObserver;
  42 import eu.etaxonomy.taxeditor.session.NullSession;
  43 import eu.etaxonomy.taxeditor.store.CdmStore;
  44
  45 /**
  46  * @author cmathew
  47  * @date 16 Feb 2015
  48  *
  49  */
  50 public class SessionsViewPart extends ViewPart implements ICdmEntitySessionManagerObserver {
  51
  52     public static final String ID = "eu.etaxonomy.taxeditor.view.sessions.SessionsViewPart"; //$NON-NLS-1$
  53     public static final String OPEN_INSPECT_SESSIONS_DIALOG_ID =  "eu.etaxonomy.taxeditor.store.open.InspectSessionsDialog";
  54     private Table tableSessions;
  55
  56     private final String[] titles = { "Owner", "In Memory", "On Disk"};
  57
  58     private final ICdmEntitySessionManager cdmEntitySessionManager;
  59     private Text txtNoOfSessions;
  60     private Text txtNoOfCaches;
  61     private Text txtDefaultInMemory;
  62     private Text txtCdmModelInMemory;
  63     private Text txtCdmModelOnDisk;
  64     private Text txtDefaultOnDisk;
  65
  66     public SessionsViewPart() {
  67         this.cdmEntitySessionManager = CdmStore.getCurrentSessionManager();
  68         if(cdmEntitySessionManager != null) {
  69             cdmEntitySessionManager.addSessionObserver(this);
  70         }
  71     }
  72
  73     /**
  74      * Create contents of the view part.
  75      * @param parent
  76      */
  77     @Override
  78     public void createPartControl(Composite parent) {
  79         Composite container = new Composite(parent, SWT.NONE);
  80         container.setLayout(new GridLayout(5, false));
  81         {
  82             Label lblNoOfSessions = new Label(container, SWT.NONE);
  83             lblNoOfSessions.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
  84             lblNoOfSessions.setAlignment(SWT.RIGHT);
  85             GridData gd_lblNoOfSessions = new GridData(SWT.RIGHT, SWT.FILL, false, false, 1, 1);
  86             gd_lblNoOfSessions.widthHint = 115;
  87             gd_lblNoOfSessions.minimumHeight = 30;
  88             lblNoOfSessions.setLayoutData(gd_lblNoOfSessions);
  89             lblNoOfSessions.setText("No. of Sessions : ");
  90         }
  91         {
  92             txtNoOfSessions = new Text(container, SWT.BORDER);
  93             txtNoOfSessions.setEditable(false);
  94             txtNoOfSessions.setBackground(SWTResourceManager.getColor(SWT.COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT));
  95             GridData gd_txtNoOfSessions = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
  96             gd_txtNoOfSessions.widthHint = 50;
  97             txtNoOfSessions.setLayoutData(gd_txtNoOfSessions);
  98         }
  99         new Label(container, SWT.NONE);
 100         new Label(container, SWT.NONE);
 101         new Label(container, SWT.NONE);
 102         {
 103             Label lblNoOfCaches = new Label(container, SWT.CENTER);
 104             lblNoOfCaches.setAlignment(SWT.RIGHT);
 105             lblNoOfCaches.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
 106             GridData gd_lblNoOfCaches = new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1);
 107             gd_lblNoOfCaches.widthHint = 150;
 108             lblNoOfCaches.setLayoutData(gd_lblNoOfCaches);
 109             lblNoOfCaches.setText("No. of entity caches : ");
 110         }
 111         {
 112             txtNoOfCaches = new Text(container, SWT.BORDER);
 113             txtNoOfCaches.setEditable(false);
 114             GridData gd_txtNoOfCaches = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
 115             gd_txtNoOfCaches.widthHint = 50;
 116             txtNoOfCaches.setLayoutData(gd_txtNoOfCaches);
 117         }
 118         new Label(container, SWT.NONE);
 119         new Label(container, SWT.NONE);
 120         new Label(container, SWT.NONE);
 121
 122         {
 123             Label lblDefaultCache = new Label(container, SWT.CENTER);
 124             lblDefaultCache.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
 125             lblDefaultCache.setText("Default Cache, ");
 126             lblDefaultCache.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
 127             lblDefaultCache.setAlignment(SWT.RIGHT);
 128         }
 129         {
 130             Label lblDefaultInMemory = new Label(container, SWT.CENTER);
 131             lblDefaultInMemory.setText("in Memory : ");
 132             lblDefaultInMemory.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
 133             lblDefaultInMemory.setAlignment(SWT.RIGHT);
 134             lblDefaultInMemory.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
 135         }
 136         {
 137             txtDefaultInMemory = new Text(container, SWT.BORDER);
 138             txtDefaultInMemory.setEditable(false);
 139             GridData gd_txtDefaultInMemory = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
 140             gd_txtDefaultInMemory.widthHint = 130;
 141             txtDefaultInMemory.setLayoutData(gd_txtDefaultInMemory);
 142         }
 143         {
 144             Label lblDefaultOnDisk = new Label(container, SWT.CENTER);
 145             lblDefaultOnDisk.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
 146             lblDefaultOnDisk.setText("on Disk : ");
 147             lblDefaultOnDisk.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
 148             lblDefaultOnDisk.setAlignment(SWT.RIGHT);
 149         }
 150         {
 151             txtDefaultOnDisk = new Text(container, SWT.BORDER);
 152             txtDefaultOnDisk.setEditable(false);
 153             txtDefaultOnDisk.setText("");
 154             GridData gd_txtDefaultOnDisk = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
 155             gd_txtDefaultOnDisk.widthHint = 130;
 156             txtDefaultOnDisk.setLayoutData(gd_txtDefaultOnDisk);
 157         }
 158         {
 159             Label lblCdmModelCache = new Label(container, SWT.CENTER);
 160             lblCdmModelCache.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
 161             lblCdmModelCache.setText("CDM Model Cache, ");
 162             lblCdmModelCache.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
 163             lblCdmModelCache.setAlignment(SWT.RIGHT);
 164         }
 165         {
 166             Label lblCdmModelInMemory = new Label(container, SWT.CENTER);
 167             lblCdmModelInMemory.setText("in Memory : ");
 168             lblCdmModelInMemory.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
 169             lblCdmModelInMemory.setAlignment(SWT.RIGHT);
 170             GridData gd_lblCdmModelInMemory = new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1);
 171             gd_lblCdmModelInMemory.widthHint = 86;
 172             lblCdmModelInMemory.setLayoutData(gd_lblCdmModelInMemory);
 173         }
 174         {
 175             txtCdmModelInMemory = new Text(container, SWT.BORDER);
 176             txtCdmModelInMemory.setEditable(false);
 177             GridData gd_txtCdmModelInMemory = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
 178             gd_txtCdmModelInMemory.widthHint = 130;
 179             txtCdmModelInMemory.setLayoutData(gd_txtCdmModelInMemory);
 180         }
 181         {
 182             Label lblCdmModelOnDisk = new Label(container, SWT.CENTER);
 183             lblCdmModelOnDisk.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
 184             lblCdmModelOnDisk.setText("on Disk : ");
 185             lblCdmModelOnDisk.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
 186             lblCdmModelOnDisk.setAlignment(SWT.RIGHT);
 187         }
 188         {
 189             txtCdmModelOnDisk = new Text(container, SWT.BORDER);
 190             txtCdmModelOnDisk.setEditable(false);
 191             txtCdmModelOnDisk.setText("");
 192             GridData gd_txtCdmModelOnDisk = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
 193             gd_txtCdmModelOnDisk.widthHint = 130;
 194             txtCdmModelOnDisk.setLayoutData(gd_txtCdmModelOnDisk);
 195         }
 196         {
 197             Button btnRefresh = new Button(container, SWT.NONE);
 198             btnRefresh.addSelectionListener(new SelectionAdapter() {
 199                 @Override
 200                 public void widgetSelected(SelectionEvent e) {
 201                     changed();
 202                 }
 203             });
 204             GridData gd_btnRefresh = new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1);
 205             gd_btnRefresh.widthHint = 100;
 206             btnRefresh.setLayoutData(gd_btnRefresh);
 207             btnRefresh.setText("Refresh");
 208         }
 209         {
 210             Button btnInspectActiveSession = new Button(container, SWT.NONE);
 211             btnInspectActiveSession.addSelectionListener(new SelectionAdapter() {
 212                 @Override
 213                 public void widgetSelected(SelectionEvent e) {
 214                     AbstractUtility.executeCommand(OPEN_INSPECT_SESSIONS_DIALOG_ID, this, null);
 215                 }
 216             });
 217             btnInspectActiveSession.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false, 2, 1));
 218             btnInspectActiveSession.setText("Inspect Active Session");
 219         }
 220         new Label(container, SWT.NONE);
 221         new Label(container, SWT.NONE);
 222
 223         {
 224             tableSessions = new Table(container, SWT.BORDER | SWT.FULL_SELECTION);
 225             GridData gd_tableSessions = new GridData(SWT.FILL, SWT.FILL, true, true, 5, 1);
 226             gd_tableSessions.widthHint = 769;
 227             tableSessions.setLayoutData(gd_tableSessions);
 228             tableSessions.setHeaderVisible(true);
 229             tableSessions.setLinesVisible(true);
 230         }
 231
 232         createActions();
 233         initializeToolBar();
 234         initializeMenu();
 235     }
 236
 237     /**
 238      * Create the actions.
 239      */
 240     private void createActions() {
 241
 242
 243         for (String title : titles) {
 244             TableColumn column = new TableColumn(tableSessions, SWT.NULL);
 245             column.setWidth(200);
 246             column.setText(title);
 247         }
 248         changed();
 249
 250     }
 251
 252
 253     @Override
 254     public void changed() {
 255         if(tableSessions.isDisposed()) {
 256             return;
 257         }
 258         tableSessions.removeAll();
 259         if(cdmEntitySessionManager != null) {
 260             Collection<ICdmEntitySession> sessions = cdmEntitySessionManager.getSessions();
 261             txtNoOfSessions.setText(String.valueOf(sessions.size()));
 262             for(ICdmEntitySession session : sessions) {
 263                 addSession(session);
 264             }
 265             ICdmEntitySession nullSession = cdmEntitySessionManager.getNullSession();
 266             if(nullSession != null) {
 267                 addSession(nullSession);
 268             }
 269             for (int i=0; i<titles.length; i++) {
 270                 tableSessions.getColumn (i).pack ();
 271             }
 272         }
 273
 274         CdmRemoteCacheManager instance = CdmRemoteCacheManager.getInstance();
 275         int cdmEnityCacheSize = CacheManager.create().getCacheNames().length;
 276         txtNoOfCaches.setText(String.valueOf(cdmEnityCacheSize));
 277
 278         Cache defaultCache = CacheManager.create().getCache(CdmCacher.DEFAULT_CACHE_NAME);
 279         txtDefaultInMemory.setText("");
 280         txtDefaultOnDisk.setText("");
 281         if(defaultCache != null) {
 282             LiveCacheStatistics liveCacheStatistics = defaultCache.getLiveCacheStatistics();
 283             txtDefaultInMemory.setText(getInMemoryStats(liveCacheStatistics));
 284             txtDefaultOnDisk.setText(getOnDiskStats(liveCacheStatistics));
 285         }
 286
 287         Cache cdmModelGetMethodsCache = instance.getCdmModelGetMethodsCache();
 288         txtCdmModelInMemory.setText("");
 289         txtCdmModelOnDisk.setText("");
 290         if(cdmModelGetMethodsCache != null) {
 291             LiveCacheStatistics liveCacheStatistics = cdmModelGetMethodsCache.getLiveCacheStatistics();
 292             txtCdmModelInMemory.setText(getInMemoryStats(liveCacheStatistics));
 293             txtCdmModelOnDisk.setText(getOnDiskStats(liveCacheStatistics));
 294         }
 295
 296     }
 297
 298     private void addSession(ICdmEntitySession session) {
 299
 300         TableItem item = new TableItem(tableSessions, SWT.NULL);
 301
 302         String activePrefix = "";
 303         if(session.isActive()) {
 304             activePrefix = "*";
 305         }
 306         String sessionOwnerString = "";
 307         if(session instanceof NullSession) {
 308             sessionOwnerString = "Null Session";
 309         } else {
 310             if(session.getOwner() != null) {
 311                 sessionOwnerString = session.getOwner().toString();
 312             }
 313         }
 314         item.setText(0, activePrefix + sessionOwnerString);
 315         LiveCacheStatistics cacheStatistics = session.getCacheStatistics();
 316         item.setText(1, getInMemoryStats(cacheStatistics));
 317         item.setText(2, getOnDiskStats(cacheStatistics));
 318     }
 319
 320     private String getInMemoryStats(LiveCacheStatistics statistics) {
 321         if(statistics != null) {
 322             long localHeapSize = statistics.getLocalHeapSize();
 323
 324             long localHeapSizeInBytes = statistics.getLocalHeapSizeInBytes();
 325             String localHeapSizeInBytesStr =
 326                     (new DecimalFormat("#.##")).format(localHeapSizeInBytes/1048576.0);
 327             return String.valueOf(localHeapSize) + " objects / " + localHeapSizeInBytesStr + " Mb";
 328         }
 329         return "";
 330     }
 331
 332     private String getOnDiskStats(LiveCacheStatistics statistics) {
 333         if(statistics != null) {
 334             long localDiskSize = statistics.getLocalDiskSize();
 335
 336             long localDiskSizeInBytes = statistics.getLocalDiskSizeInBytes();
 337             String localDiskSizeInBytesStr =
 338                     (new DecimalFormat("#.##")).format(localDiskSizeInBytes/1048576.0);
 339             return String.valueOf(localDiskSize) + " objects / " + localDiskSizeInBytesStr + " Mb";
 340         }
 341         return "";
 342     }
 343
 344     /**
 345      * Initialize the toolbar.
 346      */
 347     private void initializeToolBar() {
 348         IToolBarManager toolbarManager = getViewSite().getActionBars().getToolBarManager();
 349     }
 350
 351     /**
 352      * Initialize the menu.
 353      */
 354     private void initializeMenu() {
 355         IMenuManager menuManager = getViewSite().getActionBars().getMenuManager();
 356     }
 357
 358     @Override
 359     public void setFocus() {
 360         // Set the focus
 361     }
 362
 363 }