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/**
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* Copyright (C) 2015 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.view.sessions;
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import java.text.DecimalFormat;
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import java.util.Collection;
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import javax.annotation.PostConstruct;
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import javax.inject.Inject;
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import org.eclipse.core.commands.Command;
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import org.eclipse.core.commands.ParameterizedCommand;
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import org.eclipse.e4.core.commands.ECommandService;
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import org.eclipse.e4.core.commands.EHandlerService;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.events.SelectionAdapter;
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import org.eclipse.swt.events.SelectionEvent;
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import org.eclipse.swt.layout.GridData;
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import org.eclipse.swt.layout.GridLayout;
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import org.eclipse.swt.widgets.Button;
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import org.eclipse.swt.widgets.Composite;
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import org.eclipse.swt.widgets.Label;
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import org.eclipse.swt.widgets.Table;
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import org.eclipse.swt.widgets.TableColumn;
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import org.eclipse.swt.widgets.TableItem;
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import org.eclipse.swt.widgets.Text;
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import org.eclipse.wb.swt.SWTResourceManager;
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import eu.etaxonomy.cdm.api.cache.CdmCacherBase;
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import eu.etaxonomy.cdm.cache.CdmRemoteCacheManager;
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import eu.etaxonomy.taxeditor.session.ICdmEntitySession;
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import eu.etaxonomy.taxeditor.session.ICdmEntitySessionManager;
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import eu.etaxonomy.taxeditor.session.ICdmEntitySessionManagerObserver;
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import eu.etaxonomy.taxeditor.session.NullSession;
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import eu.etaxonomy.taxeditor.store.CdmStore;
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import net.sf.ehcache.Cache;
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import net.sf.ehcache.CacheManager;
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import net.sf.ehcache.statistics.FlatStatistics;
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/**
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* @author cmathew
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* @date 16 Feb 2015
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*/
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public class SessionsViewPart implements ICdmEntitySessionManagerObserver {
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public static final String ID = "eu.etaxonomy.taxeditor.view.sessions.SessionsViewPart"; //$NON-NLS-1$
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public static final String OPEN_INSPECT_SESSIONS_DIALOG_ID = "eu.etaxonomy.taxeditor.store.open.InspectSessionsDialog";
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private Table tableSessions;
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private final String[] titles = { "Owner", "In Memory", "On Disk"};
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private final ICdmEntitySessionManager cdmEntitySessionManager;
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private Text txtNoOfSessions;
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private Text txtNoOfCaches;
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private Text txtDefaultInMemory;
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private Text txtCdmModelInMemory;
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private Text txtCdmModelOnDisk;
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private Text txtDefaultOnDisk;
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@Inject
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private ECommandService commandService;
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@Inject
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private EHandlerService handlerService;
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@Inject
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public SessionsViewPart() {
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this.cdmEntitySessionManager = CdmStore.getCurrentSessionManager();
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if(cdmEntitySessionManager != null) {
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cdmEntitySessionManager.addSessionObserver(this);
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}
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}
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/**
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* Create contents of the view part.
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* @param parent
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*/
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@PostConstruct
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public void createPartControl(Composite parent) {
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Composite container = new Composite(parent, SWT.NONE);
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container.setLayout(new GridLayout(5, false));
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{
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Label lblNoOfSessions = new Label(container, SWT.NONE);
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lblNoOfSessions.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
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lblNoOfSessions.setAlignment(SWT.RIGHT);
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GridData gd_lblNoOfSessions = new GridData(SWT.RIGHT, SWT.FILL, false, false, 1, 1);
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gd_lblNoOfSessions.widthHint = 115;
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gd_lblNoOfSessions.minimumHeight = 30;
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lblNoOfSessions.setLayoutData(gd_lblNoOfSessions);
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lblNoOfSessions.setText("No. of Sessions : ");
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}
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{
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txtNoOfSessions = new Text(container, SWT.BORDER);
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txtNoOfSessions.setEditable(false);
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txtNoOfSessions.setBackground(SWTResourceManager.getColor(SWT.COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT));
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GridData gd_txtNoOfSessions = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
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gd_txtNoOfSessions.widthHint = 50;
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txtNoOfSessions.setLayoutData(gd_txtNoOfSessions);
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}
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new Label(container, SWT.NONE);
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new Label(container, SWT.NONE);
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new Label(container, SWT.NONE);
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{
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Label lblNoOfCaches = new Label(container, SWT.CENTER);
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lblNoOfCaches.setAlignment(SWT.RIGHT);
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lblNoOfCaches.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
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GridData gd_lblNoOfCaches = new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1);
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gd_lblNoOfCaches.widthHint = 150;
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lblNoOfCaches.setLayoutData(gd_lblNoOfCaches);
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lblNoOfCaches.setText("No. of entity caches : ");
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}
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{
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txtNoOfCaches = new Text(container, SWT.BORDER);
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txtNoOfCaches.setEditable(false);
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GridData gd_txtNoOfCaches = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
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gd_txtNoOfCaches.widthHint = 50;
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txtNoOfCaches.setLayoutData(gd_txtNoOfCaches);
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}
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new Label(container, SWT.NONE);
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new Label(container, SWT.NONE);
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new Label(container, SWT.NONE);
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{
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Label lblDefaultCache = new Label(container, SWT.CENTER);
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lblDefaultCache.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
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lblDefaultCache.setText("Default Cache, ");
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lblDefaultCache.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
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lblDefaultCache.setAlignment(SWT.RIGHT);
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}
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{
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Label lblDefaultInMemory = new Label(container, SWT.CENTER);
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lblDefaultInMemory.setText("in Memory : ");
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lblDefaultInMemory.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
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lblDefaultInMemory.setAlignment(SWT.RIGHT);
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lblDefaultInMemory.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
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}
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{
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txtDefaultInMemory = new Text(container, SWT.BORDER);
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txtDefaultInMemory.setEditable(false);
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GridData gd_txtDefaultInMemory = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
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gd_txtDefaultInMemory.widthHint = 130;
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txtDefaultInMemory.setLayoutData(gd_txtDefaultInMemory);
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}
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{
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Label lblDefaultOnDisk = new Label(container, SWT.CENTER);
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lblDefaultOnDisk.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
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lblDefaultOnDisk.setText("on Disk : ");
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lblDefaultOnDisk.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
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lblDefaultOnDisk.setAlignment(SWT.RIGHT);
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}
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{
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txtDefaultOnDisk = new Text(container, SWT.BORDER);
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txtDefaultOnDisk.setEditable(false);
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txtDefaultOnDisk.setText("");
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GridData gd_txtDefaultOnDisk = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
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gd_txtDefaultOnDisk.widthHint = 130;
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txtDefaultOnDisk.setLayoutData(gd_txtDefaultOnDisk);
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}
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{
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Label lblCdmModelCache = new Label(container, SWT.CENTER);
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lblCdmModelCache.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
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lblCdmModelCache.setText("CDM Model Cache, ");
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lblCdmModelCache.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
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lblCdmModelCache.setAlignment(SWT.RIGHT);
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}
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{
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Label lblCdmModelInMemory = new Label(container, SWT.CENTER);
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lblCdmModelInMemory.setText("in Memory : ");
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lblCdmModelInMemory.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
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lblCdmModelInMemory.setAlignment(SWT.RIGHT);
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GridData gd_lblCdmModelInMemory = new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1);
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gd_lblCdmModelInMemory.widthHint = 86;
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lblCdmModelInMemory.setLayoutData(gd_lblCdmModelInMemory);
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}
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{
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txtCdmModelInMemory = new Text(container, SWT.BORDER);
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txtCdmModelInMemory.setEditable(false);
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GridData gd_txtCdmModelInMemory = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
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gd_txtCdmModelInMemory.widthHint = 130;
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txtCdmModelInMemory.setLayoutData(gd_txtCdmModelInMemory);
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}
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{
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Label lblCdmModelOnDisk = new Label(container, SWT.CENTER);
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lblCdmModelOnDisk.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
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lblCdmModelOnDisk.setText("on Disk : ");
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lblCdmModelOnDisk.setFont(SWTResourceManager.getFont("Ubuntu", 10, SWT.NORMAL));
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lblCdmModelOnDisk.setAlignment(SWT.RIGHT);
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}
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{
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txtCdmModelOnDisk = new Text(container, SWT.BORDER);
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txtCdmModelOnDisk.setEditable(false);
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txtCdmModelOnDisk.setText("");
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GridData gd_txtCdmModelOnDisk = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
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gd_txtCdmModelOnDisk.widthHint = 130;
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txtCdmModelOnDisk.setLayoutData(gd_txtCdmModelOnDisk);
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}
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{
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Button btnRefresh = new Button(container, SWT.NONE);
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btnRefresh.addSelectionListener(new SelectionAdapter() {
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@Override
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public void widgetSelected(SelectionEvent e) {
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changed();
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}
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});
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GridData gd_btnRefresh = new GridData(SWT.FILL, SWT.CENTER, false, false, 1, 1);
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gd_btnRefresh.widthHint = 100;
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btnRefresh.setLayoutData(gd_btnRefresh);
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btnRefresh.setText("Refresh");
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}
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{
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Button btnInspectActiveSession = new Button(container, SWT.NONE);
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btnInspectActiveSession.addSelectionListener(new SelectionAdapter() {
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@Override
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public void widgetSelected(SelectionEvent e) {
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Command command = commandService.getCommand(OPEN_INSPECT_SESSIONS_DIALOG_ID);
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handlerService.executeHandler(ParameterizedCommand.generateCommand(command, null));
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}
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});
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btnInspectActiveSession.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false, 2, 1));
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btnInspectActiveSession.setText("Inspect Active Session");
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}
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new Label(container, SWT.NONE);
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new Label(container, SWT.NONE);
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{
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tableSessions = new Table(container, SWT.BORDER | SWT.FULL_SELECTION);
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GridData gd_tableSessions = new GridData(SWT.FILL, SWT.FILL, true, true, 5, 1);
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gd_tableSessions.widthHint = 769;
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tableSessions.setLayoutData(gd_tableSessions);
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tableSessions.setHeaderVisible(true);
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tableSessions.setLinesVisible(true);
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}
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createActions();
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}
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/**
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* Create the actions.
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*/
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private void createActions() {
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for (String title : titles) {
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TableColumn column = new TableColumn(tableSessions, SWT.NULL);
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column.setWidth(200);
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column.setText(title);
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}
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changed();
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}
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@Override
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public void changed() {
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if(tableSessions.isDisposed()) {
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return;
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}
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tableSessions.removeAll();
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if(cdmEntitySessionManager != null) {
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Collection<ICdmEntitySession> sessions = cdmEntitySessionManager.getSessions();
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txtNoOfSessions.setText(String.valueOf(sessions.size()));
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for(ICdmEntitySession session : sessions) {
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addSession(session);
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}
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ICdmEntitySession nullSession = cdmEntitySessionManager.getNullSession();
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if(nullSession != null) {
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addSession(nullSession);
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}
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for (int i=0; i<titles.length; i++) {
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tableSessions.getColumn (i).pack ();
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}
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}
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CdmRemoteCacheManager instance = CdmRemoteCacheManager.getInstance();
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int cdmEnityCacheSize = CacheManager.create().getCacheNames().length;
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txtNoOfCaches.setText(String.valueOf(cdmEnityCacheSize));
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Cache defaultCache = CacheManager.create().getCache(CdmCacherBase.DEFAULT_CACHE_NAME);
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txtDefaultInMemory.setText("");
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txtDefaultOnDisk.setText("");
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if(defaultCache != null) {
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FlatStatistics liveCacheStatistics = defaultCache.getStatistics();
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txtDefaultInMemory.setText(getInMemoryStats(liveCacheStatistics));
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txtDefaultOnDisk.setText(getOnDiskStats(liveCacheStatistics));
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}
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Cache cdmModelGetMethodsCache = instance.getCdmModelGetMethodsCache();
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txtCdmModelInMemory.setText("");
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txtCdmModelOnDisk.setText("");
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if(cdmModelGetMethodsCache != null) {
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FlatStatistics liveCacheStatistics = cdmModelGetMethodsCache.getStatistics();
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txtCdmModelInMemory.setText(getInMemoryStats(liveCacheStatistics));
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txtCdmModelOnDisk.setText(getOnDiskStats(liveCacheStatistics));
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}
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}
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private void addSession(ICdmEntitySession session) {
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TableItem item = new TableItem(tableSessions, SWT.NULL);
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String activePrefix = "";
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if(session.isActive()) {
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activePrefix = "*";
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}
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String sessionOwnerString = "";
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if(session instanceof NullSession) {
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sessionOwnerString = "Null Session";
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} else {
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if(session.getOwner() != null) {
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sessionOwnerString = session.getOwner().toString();
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}
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}
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item.setText(0, activePrefix + sessionOwnerString);
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FlatStatistics cacheStatistics = session.getCacheStatistics();
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item.setText(1, getInMemoryStats(cacheStatistics));
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item.setText(2, getOnDiskStats(cacheStatistics));
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}
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private String getInMemoryStats(FlatStatistics statistics) {
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if(statistics != null) {
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long localHeapSize = statistics.getLocalHeapSize();
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long localHeapSizeInBytes = statistics.getLocalHeapSizeInBytes();
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String localHeapSizeInBytesStr =
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(new DecimalFormat("#.##")).format(localHeapSizeInBytes/1048576.0);
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return String.valueOf(localHeapSize) + " objects / " + localHeapSizeInBytesStr + " Mb";
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}
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return "";
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}
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private String getOnDiskStats(FlatStatistics statistics) {
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if(statistics != null) {
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long localDiskSize = statistics.getLocalDiskSize();
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long localDiskSizeInBytes = statistics.getLocalDiskSizeInBytes();
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String localDiskSizeInBytesStr =
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(new DecimalFormat("#.##")).format(localDiskSizeInBytes/1048576.0);
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return String.valueOf(localDiskSize) + " objects / " + localDiskSizeInBytesStr + " Mb";
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}
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return "";
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}
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}
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