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/*******************************************************************************
* Copyright (c) 2005 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.ui.internal.cheatsheets;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.commands.NotEnabledException;
import org.eclipse.core.commands.NotHandledException;
import org.eclipse.core.commands.ParameterizedCommand;
import org.eclipse.core.commands.SerializationException;
import org.eclipse.core.commands.common.NotDefinedException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.osgi.util.NLS;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.commands.ICommandService;
import org.eclipse.ui.internal.cheatsheets.data.CheatSheetCommand;
/**
* Execute a command defined in a cheatsheet
*/
public class CommandRunner {
private ICommandService getCommandService() {
IWorkbench wb = PlatformUI.getWorkbench();
if (wb != null) {
Object serviceObject = wb.getAdapter(ICommandService.class);
if (serviceObject != null) {
ICommandService service = (ICommandService)serviceObject;
return service;
}
}
return null;
}
/**
* Attempt to execute a command
* @param command a CheatSheetCommand created by the parser
* @return OK_STATUS if the command completes withour error, otherwise
* an error status
*/
public IStatus executeCommand(CheatSheetCommand command) {
ICommandService service = getCommandService();
if (service == null) {
return new Status
(IStatus.ERROR,
ICheatSheetResource.CHEAT_SHEET_PLUGIN_ID, 0,
Messages.ERROR_COMMAND_SERVICE_UNAVAILABLE, null);
}
ParameterizedCommand selectedCommand;
try {
selectedCommand = service.deserialize(command.getSerialization());
selectedCommand.executeWithChecks(null, null);
} catch (NotDefinedException e) {
String message = NLS.bind(Messages.ERROR_COMMAND_ID_NOT_FOUND, (new Object[] {command.getSerialization()}));
return new Status(IStatus.ERROR, ICheatSheetResource.CHEAT_SHEET_PLUGIN_ID, IStatus.OK, message, e);
} catch (SerializationException e) {
return commandFailureStatus(e);
} catch (ExecutionException e) {
return commandFailureStatus(e);
} catch (NotEnabledException e) {
return commandFailureStatus(e);
} catch (NotHandledException e) {
return commandFailureStatus(e);
} catch (Exception e) {
return commandFailureStatus(e);
}
return Status.OK_STATUS;
}
private IStatus commandFailureStatus(Exception exception) {
return new Status
(IStatus.ERROR,
ICheatSheetResource.CHEAT_SHEET_PLUGIN_ID, 0,
Messages.ERROR_COMMAND_ERROR_STATUS, exception);
}
}
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