DeleteSessionAction.java

/*******************************************************************************
 * Copyright (c) 1998, 2015 Oracle and/or its affiliates. All rights reserved.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
 * which accompanies this distribution.
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * Contributors:
 *     Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.tools.workbench.scplugin.ui.project;

import java.util.Vector;

import javax.swing.JOptionPane;

import org.eclipse.persistence.tools.workbench.framework.action.AbstractEnablableFrameworkAction;
import org.eclipse.persistence.tools.workbench.framework.app.ApplicationNode;
import org.eclipse.persistence.tools.workbench.framework.context.WorkbenchContext;
import org.eclipse.persistence.tools.workbench.scplugin.model.adapter.DatabaseSessionAdapter;
import org.eclipse.persistence.tools.workbench.scplugin.model.adapter.SessionAdapter;
import org.eclipse.persistence.tools.workbench.scplugin.model.adapter.TopLinkSessionsAdapter;


public class DeleteSessionAction extends AbstractEnablableFrameworkAction {

    public DeleteSessionAction( WorkbenchContext context) {
        super( context);
    }

    protected void initialize()
    {
        super.initialize();
        this.initializeText( "DELETE_SESSION");
        this.initializeMnemonic( "DELETE_SESSION");
        this.initializeToolTipText( "DELETE_SESSION.TOOL_TIP");
        this.initializeIcon( "DELETE");
    }

    protected void execute( ApplicationNode selectedNode) {

        SessionAdapter session = ( SessionAdapter)selectedNode.getValue();
        TopLinkSessionsAdapter topLinkSessions = ( TopLinkSessionsAdapter)session.getParent();

        if( !canRemoveSessions( topLinkSessions, session)) {
            return;
        }

        if( session.isManaged()) {
            DatabaseSessionAdapter dbSession = (DatabaseSessionAdapter) session;
            dbSession.getBroker().unManage(session.getName());
        }
        else {
            topLinkSessions.removeSession( session);
        }

        navigatorSelectionModel().setSelectedNode(( ApplicationNode) selectedNode.getParent());
    }

    /**
     * Determines whether if the given collection of {@link SessionAdapter}s can
     * be removed from the list.
     *
     * @param sessions The collection of {@link SessionAdapter}s that have been
     * selected to be removed
     * @return <code>true<code> if they can be removed; <code>false<code>
     * otherwise
     */
    protected boolean canRemoveSessions(TopLinkSessionsAdapter topLinkSessions,
                                                    SessionAdapter session)
    {
        if (session.isManaged())
            return true;

        String name = topLinkSessions.getName();

        int confirmation = JOptionPane.showConfirmDialog
        (
            getWorkbenchContext().getCurrentWindow(),
            resourceRepository().getString("PROJECT_SESSIONS_PROMPT_REMOVE_MULTI", name),
            resourceRepository().getString("PROJECT_SESSIONS_PROMPT_REMOVE_MULTI_TITLE"),
            JOptionPane.YES_NO_OPTION
        );

        return (confirmation == JOptionPane.OK_OPTION);
    }

    public void execute() {
        super.execute();
    }

    protected void updateEnabledState() {

        ApplicationNode[] nodes = selectedNodes();
        Vector unmanagedSessions = new Vector();

        if( nodes.length > 0) {
            for( int index = 0; index < nodes.length; index++) {
                ApplicationNode node = nodes[index];
                SessionAdapter session = ( SessionAdapter)node.getValue();

                if ( session.isManaged()) {
                    unmanagedSessions.add( session);
                }
            }
        }

        if(( unmanagedSessions.size() > 0) && (nodes.length == unmanagedSessions.size())) {
            this.initializeText( "UNMANAGED_SESSION");
            this.initializeMnemonic( "UNMANAGED_SESSION");
            this.initializeToolTipText( "UNMANAGED_SESSION.TOOL_TIP");
            this.initializeIcon( "REMOVE");
        }
        else {
            this.initializeText( "DELETE_SESSION");
            this.initializeMnemonic( "DELETE_SESSION");
            this.initializeToolTipText( "DELETE_SESSION.TOOL_TIP");
            this.initializeIcon( "DELETE");
        }
    }

    protected boolean shouldBeEnabled(ApplicationNode selectedNode) {
        throw new UnsupportedOperationException();
    }
}