Examples with EvaluationContext org.eclipse.core.expressions.EvaluationContext used on opensource projects

Example 71 with EvaluationContext

use of org.eclipse.core.expressions.EvaluationContext in project dbeaver by serge-rider.

the class ActionUtils method runCommand.

public static void runCommand(String commandId, ISelection selection, Map<String, Object> parameters, IServiceLocator serviceLocator) {
    if (commandId != null) {
        try {
            ICommandService commandService = serviceLocator.getService(ICommandService.class);
            IHandlerService handlerService = serviceLocator.getService(IHandlerService.class);
            if (commandService != null) {
                Command command = commandService.getCommand(commandId);
                boolean needContextPatch = false;
                if (selection != null) {
                    needContextPatch = true;
                    if (serviceLocator instanceof IWorkbenchSite) {
                        final ISelection curSelection = ((IWorkbenchSite) serviceLocator).getSelectionProvider().getSelection();
                        if (curSelection instanceof IStructuredSelection && selection instanceof IStructuredSelection) {
                            if (((IStructuredSelection) curSelection).size() == ((IStructuredSelection) selection).size() && ((IStructuredSelection) curSelection).getFirstElement() == ((IStructuredSelection) selection).getFirstElement()) {
                                // The same selection
                                needContextPatch = false;
                            }
                        }
                    }
                }
                Parameterization[] parametrization = null;
                if (!CommonUtils.isEmpty(parameters)) {
                    parametrization = new Parameterization[parameters.size()];
                    int paramIndex = 0;
                    for (Map.Entry<String, Object> param : parameters.entrySet()) {
                        IParameter parameter = command.getParameter(param.getKey());
                        if (parameter != null) {
                            parametrization[paramIndex] = new Parameterization(parameter, CommonUtils.toString(param.getValue()));
                        } else {
                            log.debug("Parameter '" + param.getKey() + "' not found in command '" + commandId + "'");
                            parametrization[paramIndex] = null;
                        }
                        paramIndex++;
                    }
                }
                if (selection != null && needContextPatch) {
                    // Create new eval context
                    IEvaluationContext context = new EvaluationContext(handlerService.createContextSnapshot(false), selection);
                    if (serviceLocator instanceof IWorkbenchPartSite) {
                        context.addVariable(ISources.ACTIVE_PART_NAME, ((IWorkbenchPartSite) serviceLocator).getPart());
                    }
                    context.addVariable(ISources.ACTIVE_CURRENT_SELECTION_NAME, selection);
                    ParameterizedCommand pc = new ParameterizedCommand(command, parametrization);
                    handlerService.executeCommandInContext(pc, null, context);
                } else if (command != null) {
                    if (command.isEnabled()) {
                        ParameterizedCommand pc = new ParameterizedCommand(command, parametrization);
                        handlerService.executeCommand(pc, null);
                    } else {
                        log.warn("Command '" + commandId + "' is disabled");
                    }
                } else {
                    log.warn("Command '" + commandId + "' not found");
                }
            }
        } catch (Exception e) {
            DBWorkbench.getPlatformUI().showError("Error running command", "Can't execute command '" + commandId + "'", e);
        }
    }
}