/*
* uDig - User Friendly Desktop Internet GIS client
* http://udig.refractions.net
* (C) 2012, Refractions Research Inc.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* (http://www.eclipse.org/legal/epl-v10.html), and the Refractions BSD
* License v1.0 (http://udig.refractions.net/files/bsd3-v10.html).
*/
package org.locationtech.udig.catalog.internal.ui.actions;
import java.net.URL;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.locationtech.udig.catalog.CatalogPlugin;
import org.locationtech.udig.catalog.ICatalog;
import org.locationtech.udig.catalog.ID;
import org.locationtech.udig.catalog.IService;
import org.locationtech.udig.catalog.IServiceFactory;
import org.locationtech.udig.catalog.IServiceInfo;
import org.locationtech.udig.catalog.ui.CatalogUIPlugin;
import org.locationtech.udig.ui.PlatformGIS;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.ISafeRunnable;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.actions.ActionDelegate;
/**
* Resets a selection of services
*
* @author Jody Garnett
* @since 0.8
*/
public class ResetService extends ActionDelegate {
IStructuredSelection current;
public void run( IAction action ) {
if ((current == null)) {
return;
}
PlatformGIS.run(new ISafeRunnable(){
public void handleException( Throwable exception ) {
CatalogUIPlugin.log("Error resetting: "+current, exception); //$NON-NLS-1$
}
public void run() throws Exception {
List<IService> servers = new ArrayList<IService>();
for( Iterator selection = current.iterator(); selection.hasNext(); ) {
try {
servers.add((IService) selection.next());
} catch (ClassCastException huh) {
CatalogUIPlugin.trace("Should not happen: " + huh); //$NON-NLS-1$
}
}
reset(servers, null);
}
});
}
/**
* Allows a list of services to be reset.
* <p>
* In each case a replacement service is made using the same connection
* parameters; the old service is disposed; and the replacement
* placed into the catalog.
* <p>
* Client code listing to catalog change events will see the event fired off
* any client code that has tried to cache the IService (to avoid doing a look
* up each time) will be in trouble.
* @param servers List of IService handles to reset
* @param monitor Progress Monitor used to interrupt the command if needed
*/
public static void reset( List<IService> servers, IProgressMonitor monitor ) {
IServiceFactory serviceFactory = CatalogPlugin.getDefault().getServiceFactory();
ICatalog catalog = CatalogPlugin.getDefault().getLocalCatalog();
for( IService original : servers ) {
try {
final ID id = original.getID();
CatalogUIPlugin.trace("Reset service " + original.getIdentifier()); //$NON-NLS-1$
Map<java.lang.String, java.io.Serializable>
connectionParams = original.getConnectionParams();
IService replacement = null; // unknown
TEST: for( IService candidate : serviceFactory.createService(connectionParams) ) {
try {
CatalogUIPlugin.trace(id + " : connecting"); //$NON-NLS-1$
IServiceInfo info = candidate.getInfo(monitor);
CatalogUIPlugin.trace(id + " : found " + info.getTitle()); //$NON-NLS-1$
replacement = candidate;
break TEST;
} catch (Throwable t) {
CatalogUIPlugin.trace(id + " : ... " + t.getLocalizedMessage()); //$NON-NLS-1$
}
}
if (replacement == null) {
CatalogUIPlugin.log("Could not reset "+id+" - as we could not connect!",null); //$NON-NLS-1$ //$NON-NLS-2$
continue; // skip - too bad we cannot update status the original
}
catalog.replace(id, replacement);
} catch (Throwable failed) {
CatalogUIPlugin.log("Reset failed", failed); //$NON-NLS-1$
}
}
}
/**
* @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction,
* org.eclipse.jface.viewers.ISelection)
*/
public void selectionChanged( IAction action, ISelection selection ) {
if (!selection.isEmpty() && selection instanceof IStructuredSelection) {
current = (IStructuredSelection) selection;
}
}
/**
* @see org.eclipse.ui.IObjectActionDelegate#setActivePart(org.eclipse.jface.action.IAction,
* org.eclipse.ui.IWorkbenchPart)
*/
public void setActivePart( IAction action, IWorkbenchPart targetPart ) {
}
}