/*
* Copyright 2012 JBoss Inc
*
* Licensed 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.
*/
package org.drools.workbench.screens.drltext.client.editor;
import java.util.List;
import javax.annotation.PostConstruct;
import javax.enterprise.context.Dependent;
import javax.enterprise.event.Event;
import javax.inject.Inject;
import com.google.gwt.user.client.ui.IsWidget;
import org.drools.workbench.models.datamodel.rule.DSLSentence;
import org.drools.workbench.screens.drltext.client.resources.i18n.DRLTextEditorConstants;
import org.drools.workbench.screens.drltext.client.type.DRLResourceType;
import org.drools.workbench.screens.drltext.client.type.DSLRResourceType;
import org.drools.workbench.screens.drltext.model.DrlModelContent;
import org.drools.workbench.screens.drltext.service.DRLTextEditorService;
import org.guvnor.common.services.shared.metadata.model.Metadata;
import org.guvnor.common.services.shared.validation.model.ValidationMessage;
import org.jboss.errai.common.client.api.Caller;
import org.jboss.errai.common.client.api.RemoteCallback;
import org.kie.uberfire.client.callbacks.DefaultErrorCallback;
import org.kie.uberfire.client.callbacks.HasBusyIndicatorDefaultErrorCallback;
import org.kie.uberfire.client.common.MultiPageEditor;
import org.kie.workbench.common.widgets.client.callbacks.CommandBuilder;
import org.kie.workbench.common.widgets.client.callbacks.CommandDrivenErrorCallback;
import org.kie.workbench.common.widgets.client.editor.GuvnorEditor;
import org.kie.workbench.common.widgets.client.popups.file.CommandWithCommitMessage;
import org.kie.workbench.common.widgets.client.popups.file.SaveOperationService;
import org.kie.workbench.common.widgets.client.popups.validation.DefaultFileNameValidator;
import org.kie.workbench.common.widgets.client.popups.validation.ValidationPopup;
import org.kie.workbench.common.widgets.client.resources.i18n.CommonConstants;
import org.kie.workbench.common.widgets.metadata.client.widget.OverviewWidgetPresenter;
import org.uberfire.backend.vfs.ObservablePath;
import org.uberfire.client.annotations.WorkbenchEditor;
import org.uberfire.client.annotations.WorkbenchMenu;
import org.uberfire.client.annotations.WorkbenchPartTitle;
import org.uberfire.client.annotations.WorkbenchPartView;
import org.uberfire.client.callbacks.Callback;
import org.uberfire.client.mvp.PlaceManager;
import org.uberfire.client.workbench.events.ChangeTitleWidgetEvent;
import org.uberfire.lifecycle.IsDirty;
import org.uberfire.lifecycle.OnClose;
import org.uberfire.lifecycle.OnMayClose;
import org.uberfire.lifecycle.OnStartup;
import org.uberfire.mvp.Command;
import org.uberfire.mvp.PlaceRequest;
import org.uberfire.workbench.events.NotificationEvent;
import org.uberfire.workbench.model.menu.Menus;
import org.uberfire.workbench.type.FileNameUtil;
/**
* This is the default rule editor widget (just text editor based).
*/
@Dependent
@WorkbenchEditor(identifier = "DRLEditor", supportedTypes = {DRLResourceType.class, DSLRResourceType.class})
public class DRLEditorPresenter
extends GuvnorEditor {
@Inject
private Caller<DRLTextEditorService> drlTextEditorService;
@Inject
private Event<NotificationEvent> notification;
@Inject
private Event<ChangeTitleWidgetEvent> changeTitleNotification;
@Inject
private PlaceManager placeManager;
private DRLEditorView view;
@Inject
private OverviewWidgetPresenter overview;
@Inject
private MultiPageEditor multiPage;
@Inject
private DRLResourceType resourceTypeDRL;
@Inject
private DSLRResourceType resourceTypeDSLR;
@Inject
private DefaultFileNameValidator fileNameValidator;
private boolean isDSLR;
private Metadata metadata;
@Inject
public DRLEditorPresenter(DRLEditorView view) {
super(view);
this.view = view;
}
@PostConstruct
public void init() {
view.init(this);
}
@OnStartup
public void onStartup(final ObservablePath path,
final PlaceRequest place) {
super.init(path, place);
this.isDSLR = resourceTypeDSLR.accept(path);
}
protected void loadContent() {
drlTextEditorService.call(getLoadContentSuccessCallback(),
new CommandDrivenErrorCallback(view,
new CommandBuilder().addNoSuchFileException(view,
multiPage,
menus).build()
)).loadContent(versionRecordManager.getCurrentPath());
}
private RemoteCallback<DrlModelContent> getLoadContentSuccessCallback() {
return new RemoteCallback<DrlModelContent>() {
@Override
public void callback(final DrlModelContent content) {
//Path is set to null when the Editor is closed (which can happen before async calls complete).
if (versionRecordManager.getCurrentPath() == null) {
return;
}
multiPage.clear();
multiPage.addWidget(overview,
CommonConstants.INSTANCE.Overview());
overview.setContent(content.getOverview(), versionRecordManager.getCurrentPath());
metadata = content.getOverview().getMetadata();
multiPage.addWidget(view,
DRLTextEditorConstants.INSTANCE.DRL());
final String drl = assertContent(content.getDrl());
final List<String> fullyQualifiedClassNames = content.getFullyQualifiedClassNames();
final List<DSLSentence> dslConditions = content.getDslConditions();
final List<DSLSentence> dslActions = content.getDslActions();
versionRecordManager.setVersions(content.getOverview().getMetadata().getVersion());
//Populate view
if (isDSLR) {
view.setContent(drl,
fullyQualifiedClassNames,
dslConditions,
dslActions);
} else {
view.setContent(drl,
fullyQualifiedClassNames);
}
view.hideBusyIndicator();
}
private String assertContent(final String drl) {
if (drl == null || drl.isEmpty()) {
return "";
}
return drl;
}
};
}
public void loadClassFields(final String fullyQualifiedClassName,
final Callback<List<String>> callback) {
drlTextEditorService.call(getLoadClassFieldsSuccessCallback(callback),
new HasBusyIndicatorDefaultErrorCallback(view)).loadClassFields(versionRecordManager.getCurrentPath(),
fullyQualifiedClassName);
}
private RemoteCallback<List<String>> getLoadClassFieldsSuccessCallback(final Callback<List<String>> callback) {
return new RemoteCallback<List<String>>() {
@Override
public void callback(final List<String> fields) {
callback.callback(fields);
}
};
}
protected Command onValidate() {
return new Command() {
@Override
public void execute() {
drlTextEditorService.call(new RemoteCallback<List<ValidationMessage>>() {
@Override
public void callback(final List<ValidationMessage> results) {
if (results == null || results.isEmpty()) {
notification.fire(new NotificationEvent(CommonConstants.INSTANCE.ItemValidatedSuccessfully(),
NotificationEvent.NotificationType.SUCCESS));
} else {
ValidationPopup.showMessages(results);
}
}
}, new DefaultErrorCallback()).validate(versionRecordManager.getCurrentPath(),
view.getContent());
}
};
}
protected void save() {
new SaveOperationService().save(versionRecordManager.getCurrentPath(),
new CommandWithCommitMessage() {
@Override
public void execute(final String commitMessage) {
view.showBusyIndicator(CommonConstants.INSTANCE.Saving());
drlTextEditorService.call(getSaveSuccessCallback(),
new HasBusyIndicatorDefaultErrorCallback(view)).save(versionRecordManager.getCurrentPath(),
view.getContent(),
metadata,
commitMessage);
}
}
);
concurrentUpdateSessionInfo = null;
}
@IsDirty
public boolean isDirty() {
return view.isDirty();
}
@OnClose
public void onClose() {
versionRecordManager.clear();
}
@OnMayClose
public boolean checkIfDirty() {
if (isDirty()) {
return view.confirmClose();
}
return true;
}
@WorkbenchPartTitle
public String getTitle() {
String title = "";
String fileName = "";
if (resourceTypeDRL.accept(versionRecordManager.getCurrentPath())) {
title = DRLTextEditorConstants.INSTANCE.drlEditorTitle();
fileName = FileNameUtil.removeExtension(versionRecordManager.getCurrentPath(),
resourceTypeDRL);
} else if (resourceTypeDSLR.accept(versionRecordManager.getCurrentPath())) {
title = DRLTextEditorConstants.INSTANCE.dslrEditorTitle();
fileName = FileNameUtil.removeExtension(versionRecordManager.getCurrentPath(),
resourceTypeDSLR);
}
if (versionRecordManager.getVersion() != null) {
fileName = fileName + " v" + versionRecordManager.getVersion();
}
return title + " [" + fileName + "]";
}
@WorkbenchPartView
public IsWidget getWidget() {
return multiPage;
}
@WorkbenchMenu
public Menus getMenus() {
return menus;
}
}