com.clustercontrol.repository.view.action.NodeDeleteAction.java Source code

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Here is the source code for com.clustercontrol.repository.view.action.NodeDeleteAction.java

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/*
    
Copyright (C) 2006 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.repository.view.action;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

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.dialogs.MessageDialog;
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.repository.action.DeleteNodeProperty;
import com.clustercontrol.repository.action.GetNodeListTableDefine;
import com.clustercontrol.repository.view.NodeListView;
import com.clustercontrol.util.Messages;

/**
 * ???<BR>
 *
 * @version 5.0.0
 * @since 1.0.0
 */
public class NodeDeleteAction extends AbstractHandler implements IElementUpdater {
    public static final String ID = NodeDeleteAction.class.getName();

    //    ----- instance  ----- //
    /**  */
    private static Log m_log = LogFactory.getLog(NodeDeleteAction.class);

    /**  */
    private IWorkbenchPart viewPart;

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

    /**
     * @see org.eclipse.core.commands.IHandler#execute
     */
    @Override
    public Object execute(ExecutionEvent event) throws ExecutionException {
        this.viewPart = HandlerUtil.getActivePart(event);

        // ??????ID?
        NodeListView nodeListView = null;
        try {
            nodeListView = (NodeListView) this.viewPart.getAdapter(NodeListView.class);
        } catch (Exception e) {
            m_log.info("execute " + e.getMessage());
            return null;
        }

        if (nodeListView == null) {
            m_log.info("execute: view is null");
            return null;
        }

        StructuredSelection selection = (StructuredSelection) nodeListView.getComposite().getTableViewer()
                .getSelection();

        List<?> sList = (List<?>) selection.toList();
        Map<String, List<String>> map = new ConcurrentHashMap<String, List<String>>();

        for (Object obj : sList) {
            List<?> list = (List<?>) obj;
            String managerName = null;
            if (list != null) {
                managerName = (String) list.get(GetNodeListTableDefine.MANAGER_NAME);
                if (map.get(managerName) == null) {
                    map.put(managerName, new ArrayList<String>());
                }
            }
        }

        int size = 0;
        String facilityName = null;
        String facilityId = null;
        for (Object obj : sList) {
            List<?> list = (List<?>) obj;
            String managerName = null;
            if (list != null) {
                managerName = (String) list.get(GetNodeListTableDefine.MANAGER_NAME);
                String id = (String) list.get(GetNodeListTableDefine.FACILITY_ID);
                facilityName = (String) list.get(GetNodeListTableDefine.FACILITY_NAME);
                facilityId = id;
                map.get(managerName).add(id);
                size++;
            }
        }
        if (size > 0) {
            // ???????????
            String msg = "";
            String[] args = new String[2];
            if (size == 1) {
                args[0] = facilityName;
                args[1] = facilityId;
                msg = "message.repository.1";
            } else {
                args[0] = Integer.toString(size);
                msg = "message.repository.51";
            }

            if (MessageDialog.openConfirm(null, Messages.getString("confirmed"),
                    Messages.getString(msg, args)) == false) {

                return null;
            }

            for (Map.Entry<String, List<String>> entry : map.entrySet()) {
                new DeleteNodeProperty().delete(entry.getKey(), entry.getValue());
            }
        }
        // 
        nodeListView.update();
        return null;
    }

    @Override
    public void updateElement(UIElement element, @SuppressWarnings("rawtypes") Map parameters) {
        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();

                boolean editEnable = false;
                if (part instanceof NodeListView) {
                    // Enable button when 1 item is selected
                    NodeListView view = (NodeListView) part;

                    if (view.getSelectedNum() > 0) {
                        editEnable = true;
                    }
                }
                this.setBaseEnabled(editEnable);
            } else {
                this.setBaseEnabled(false);
            }
        }
    }
}