/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
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*/
package org.apache.qpid.management.ui;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.menus.WorkbenchWindowControlContribution;
import org.apache.qpid.management.ui.jmx.MBeanUtility;
import org.apache.qpid.management.ui.views.MBeanView;
import org.apache.qpid.management.ui.views.NavigationView;
public class RefreshIntervalComboPanel extends WorkbenchWindowControlContribution
{
private Display _display = null;
private RefreshTask _refreshTask = null;
private static int DEFAULT_INDEX = 2; //15seconds
private static final int[] INTERVALS = new int[]{5,10,15,30,60,120,300,600};
public RefreshIntervalComboPanel()
{
super();
}
public RefreshIntervalComboPanel(String id)
{
super(id);
}
@Override
public Control createControl(Composite parent)
{
_display = parent.getDisplay();
Composite holder = new Composite(parent,SWT.NONE);
holder.setLayout(new GridLayout(2,false));
holder.setLayoutData(new GridData(SWT.LEFT,SWT.TOP,false,false));
Label refreshLabel = new Label(holder,SWT.NONE);
refreshLabel.setLayoutData(new GridData(SWT.LEFT,SWT.TOP,false,true));
refreshLabel.setText("Refresh Interval: ");
final Combo combo = new Combo(holder, SWT.NONE | SWT.DROP_DOWN | SWT.READ_ONLY);
combo.setLayoutData(new GridData(SWT.LEFT,SWT.TOP,false,false));
for(int i=0; i< INTERVALS.length ; i++)
{
combo.add(String.valueOf(INTERVALS[i]) + " seconds");
}
combo.select(DEFAULT_INDEX);
_refreshTask = new RefreshTask(INTERVALS[DEFAULT_INDEX]);
_display.timerExec(1000 * INTERVALS[DEFAULT_INDEX], _refreshTask);
combo.addModifyListener(
new ModifyListener()
{
public void modifyText(final ModifyEvent e)
{
_display.timerExec(-1, _refreshTask); //cancels existing refresh runnable
_refreshTask = new RefreshTask(INTERVALS[combo.getSelectionIndex()]);
_display.timerExec(0, _refreshTask); //immediately refresh and begin new schedule
}
});
return holder;
}
private class RefreshTask implements Runnable
{
private int seconds;
public RefreshTask(int secs)
{
this.seconds = secs;
}
@Override
public void run()
{
IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
if(window != null)
{
final MBeanView mbView = (MBeanView)window.getActivePage().findView(MBeanView.ID);
final NavigationView navView = (NavigationView)window.getActivePage().findView(NavigationView.ID);
try
{
mbView.refresh();
navView.refresh();
}
catch (Exception ex)
{
MBeanUtility.handleException(ex);
}
_display.timerExec(1000 * seconds, this);
}
}
}
}