com.clustercontrol.infra.view.action.AddInfraModuleAction.java Source code

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Here is the source code for com.clustercontrol.infra.view.action.AddInfraModuleAction.java

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/*
    
Copyright (C) 2014 NTT DATA Corporation
    
This program is free software; you can redistribute it and/or
Modify it under the terms of the GNU General Public License
as published by the Free Software Foundation, version 2.
    
This program is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied
warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.  See the GNU General Public License for more details.
    
 */

package com.clustercontrol.infra.view.action;

import java.util.Map;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.commands.IElementUpdater;
import org.eclipse.ui.handlers.HandlerUtil;
import org.eclipse.ui.menus.UIElement;

import com.clustercontrol.infra.dialog.ModuleTypeDialog;
import com.clustercontrol.infra.view.InfraManagementView;
import com.clustercontrol.infra.view.InfraModuleView;

public class AddInfraModuleAction extends AbstractHandler implements IElementUpdater {
    /**  */
    private static Log m_log = LogFactory.getLog(AddInfraModuleAction.class);

    /** ID */
    public static final String ID = AddInfraModuleAction.class.getName();

    private IWorkbenchWindow window;
    /**  */
    private IWorkbenchPart viewPart;

    @Override
    public Object execute(ExecutionEvent event) throws ExecutionException {
        this.window = HandlerUtil.getActiveWorkbenchWindow(event);
        // In case this action has been disposed
        if (null == this.window || !isEnabled()) {
            return null;
        }

        this.viewPart = HandlerUtil.getActivePart(event);
        if (!(viewPart instanceof InfraModuleView)) {
            return null;
        }

        InfraModuleView infraModuleView = null;
        try {
            infraModuleView = (InfraModuleView) viewPart.getAdapter(InfraModuleView.class);
        } catch (Exception e) {
            m_log.info("execute " + e.getMessage());
            return null;
        }

        if (infraModuleView != null) {
            // ??
            String managementId = infraModuleView.getComposite().getManagementId();
            String managerName = infraModuleView.getComposite().getManagerName();
            ModuleTypeDialog dialog = new ModuleTypeDialog(this.viewPart.getSite().getShell(), managerName,
                    managementId, infraModuleView);
            dialog.open();

            // ?
            infraModuleView.update(managerName, infraModuleView.getComposite().getManagementId());
        } else {
            m_log.info("execute: view is null");
        }
        return null;
    }

    /**
     * Dispose
     */
    @Override
    public void dispose() {
        this.viewPart = null;
        this.window = null;
    }

    @Override
    public void updateElement(UIElement element, @SuppressWarnings("rawtypes") Map parameters) {
        boolean enable = false;
        IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
        // page may not start at state restoring
        if (null != window) {
            IWorkbenchPage page = window.getActivePage();
            if (null != page) {
                IWorkbenchPart part = page.getActivePart();

                if (part instanceof InfraModuleView) {
                    InfraModuleView view = (InfraModuleView) part.getAdapter(InfraModuleView.class);
                    if (view == null) {
                        m_log.info("execute: infra module view is null");
                        return;
                    }
                    if (view.getComposite().getManagementId() != null) {
                        enable = true;
                    }
                } else if (part instanceof InfraManagementView) {
                    InfraManagementView view = (InfraManagementView) part.getAdapter(InfraManagementView.class);
                    if (view == null) {
                        m_log.info("execute: infra management view is null");
                        return;
                    }
                    StructuredSelection selection = (StructuredSelection) view.getComposite().getTableViewer()
                            .getSelection();
                    if (selection.size() == 1) {
                        enable = true;
                    }
                }
                this.setBaseEnabled(enable);
            }
        }
    }

}