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/*******************************************************************************
* Copyright (c) 2011 Gluster, Inc. <http://www.gluster.com>
* This file is part of Gluster Management Console.
*
* Gluster Management Console is free software; you can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License as published
* by the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* Gluster Management Console 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 Affero General Public License
* for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see
* <http://www.gnu.org/licenses/>.
*******************************************************************************/
package com.gluster.storage.management.console.actions;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.osgi.internal.signedcontent.Base64;
import com.gluster.storage.management.client.VolumesClient;
import com.gluster.storage.management.console.AlertsManager;
import com.gluster.storage.management.console.GlusterDataModelManager;
import com.gluster.storage.management.console.IImageKeys;
import com.gluster.storage.management.console.utils.GUIHelper;
import com.gluster.storage.management.core.constants.CoreConstants;
import com.gluster.storage.management.core.model.Volume;
import com.gluster.storage.management.core.model.Alert.ALERT_TYPES;
import com.gluster.storage.management.core.model.Volume.VOLUME_STATUS;
public class StartVolumeAction extends AbstractMonitoredActionDelegate {
//private Volume volume;
private GlusterDataModelManager modelManager = GlusterDataModelManager.getInstance();
private List<Volume> selectedVolumes = new ArrayList<Volume>();
private List<String> selectedVolumeNames = new ArrayList<String>();
private List<String> offlineVolumeNames = new ArrayList<String>();
@Override
protected void performAction(IAction action, IProgressMonitor monitor) {
final String actionDesc = action.getDescription();
collectVolumeNames();
if (offlineVolumeNames.size() == 0) {
showWarningDialog(actionDesc, "Volumes " + selectedVolumeNames + " already started!");
return; // Volume already started. Don't do anything.
}
VolumesClient vc = new VolumesClient();
Volume newVolume = new Volume();
List<String> startedVolumes = new ArrayList<String>();
List<String> failedVolumes = new ArrayList<String>();
String errorMessage = "";
List<String> cifsVolumes = GlusterDataModelManager.getInstance().getCifsEnabledVolumeNames(selectedVolumes);
List<String> offlineServers = GlusterDataModelManager.getInstance().getOfflineServers();
// One or more servers are offline, Show warning if cifs is enabled
if (cifsVolumes != null && cifsVolumes.size() > 0 && offlineServers != null && offlineServers.size() > 0) {
Integer userAction = new MessageDialog(getShell(), "CIFS configuration", GUIHelper.getInstance().getImage(
IImageKeys.VOLUME_16x16),
"Performing CIFS updates when one or more servers are offline can trigger "
+ "inconsistent behavior for CIFS accesses in the cluster." + CoreConstants.NEWLINE
+ "Are you sure you want to continue?", MessageDialog.QUESTION,
new String[] { "No", "Yes" }, -1).open();
if (userAction != 1) {
return; // Do not start volume services
}
}
monitor.beginTask("Starting Selected Volumes...", selectedVolumes.size());
// Starting of a volume results in changes to the model, and ultimately updates the "selectedVolumes" list,
// over which we are iterating, thus resulting in ConcurrentModificationException. To avoid this, we iterate
// over an array obtained from the list.
for (Volume volume : selectedVolumes.toArray(new Volume[0])) {
if(monitor.isCanceled()) {
break;
}
if (volume.getStatus() == VOLUME_STATUS.ONLINE) {
monitor.worked(1);
continue; // skip if already started
}
try {
monitor.setTaskName("Starting volume [" + volume.getName() + "]");
vc.startVolume(volume.getName(), false);
startedVolumes.add(volume.getName());
} catch (Exception e) {
failedVolumes.add(volume.getName());
// If any post volume start activity failed, update the volume status
if (vc.getVolume(volume.getName()).getStatus() == VOLUME_STATUS.ONLINE) {
modelManager.updateVolumeStatus(volume, VOLUME_STATUS.ONLINE);
}
errorMessage += e.getMessage() + CoreConstants.NEWLINE;
}
// Update the model by fetching latest volume info (NOT JUST STATUS)
try {
newVolume = vc.getVolume(volume.getName());
modelManager.volumeChanged(volume, newVolume);
} catch (Exception e) {
errorMessage += "Updating volume info failed on UI. [" + e.getMessage() + "]";
}
monitor.worked(1);
}
monitor.done();
// Display the success or failure info
if (startedVolumes.size() == 0) { // No volume(s) started successfully
showErrorDialog(actionDesc, "Volume(s) " + failedVolumes + " could not be started!"
+ CoreConstants.NEWLINE + "Error: [" + errorMessage + "]");
} else {
String info = "Volume(s) " + startedVolumes + " started successfully!";
if (!errorMessage.equals("")) {
info += CoreConstants.NEWLINE + CoreConstants.NEWLINE + "Volumes " + failedVolumes
+ " failed to start! [" + errorMessage + "]";
}
if (selectedVolumes.size() == startedVolumes.size()) {
showInfoDialog(actionDesc, info);
} else {
showWarningDialog(actionDesc, info);
}
}
}
private void collectVolumeNames() {
selectedVolumeNames.clear();
offlineVolumeNames.clear();
for (Volume volume : selectedVolumes) {
selectedVolumeNames.add(volume.getName());
if (volume.getStatus() == VOLUME_STATUS.OFFLINE) {
offlineVolumeNames.add(volume.getName());
}
}
}
@Override
public void dispose() {
}
@Override
public void selectionChanged(IAction action, ISelection selection) {
Set<Volume> selectedVolumeNames = GUIHelper.getInstance().getSelectedEntities(getWindow(), Volume.class);
selectedVolumes.clear();
if (selectedVolumeNames == null || selectedVolumeNames.isEmpty()) {
super.selectionChanged(action, selection);
if (selectedEntity instanceof Volume) {
selectedVolumes.add((Volume) selectedEntity);
}
} else {
selectedVolumes.addAll(selectedVolumeNames); //TODO reverse the collection to maintain the selected order
}
action.setEnabled(false);
// To enable the action
for (Volume volume : selectedVolumes) {
if (volume.getStatus() == VOLUME_STATUS.OFFLINE) {
action.setEnabled(true);
break;// If find an online volume, enable the action
}
}
}
}
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