/*
* 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.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.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.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.ValidationPopup;
import org.kie.workbench.common.widgets.client.resources.i18n.CommonConstants;
import org.kie.workbench.common.widgets.metadata.client.KieEditor;
import org.uberfire.backend.vfs.ObservablePath;
import org.uberfire.backend.vfs.Path;
import org.uberfire.client.annotations.WorkbenchEditor;
import org.uberfire.client.annotations.WorkbenchMenu;
import org.uberfire.client.annotations.WorkbenchPartTitle;
import org.uberfire.client.annotations.WorkbenchPartTitleDecoration;
import org.uberfire.client.annotations.WorkbenchPartView;
import org.uberfire.client.callbacks.Callback;
import org.uberfire.client.workbench.type.ClientResourceType;
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;
/**
* This is the default rule editor widget (just text editor based).
*/
@Dependent
@WorkbenchEditor(identifier = "DRLEditor", supportedTypes = { DRLResourceType.class, DSLRResourceType.class })
public class DRLEditorPresenter
extends KieEditor {
@Inject
private Caller<DRLTextEditorService> drlTextEditorService;
@Inject
private Event<NotificationEvent> notification;
private DRLEditorView view;
@Inject
private DRLResourceType resourceTypeDRL;
@Inject
private DSLRResourceType resourceTypeDSLR;
private boolean isDSLR;
@Inject
public DRLEditorPresenter( final 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,
getResourceType( path ) );
this.isDSLR = resourceTypeDSLR.accept( path );
}
protected void loadContent() {
view.showLoading();
drlTextEditorService.call( getLoadContentSuccessCallback(),
getNoSuchFileExceptionErrorCallback() ).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;
}
resetEditorPages( content.getOverview() );
addSourcePage();
final String drl = assertContent( content.getDrl() );
final List<String> fullyQualifiedClassNames = content.getFullyQualifiedClassNames();
final List<DSLSentence> dslConditions = content.getDslConditions();
final List<DSLSentence> dslActions = content.getDslActions();
//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.showSaving();
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;
}
@WorkbenchPartTitleDecoration
public IsWidget getTitle() {
return super.getTitle();
}
@WorkbenchPartTitle
public String getTitleText() {
return super.getTitleText();
}
@Override
protected void onSourceTabSelected() {
updateSource( view.getContent() );
}
private ClientResourceType getResourceType( Path path ) {
if ( resourceTypeDRL.accept( path ) ) {
return resourceTypeDRL;
} else {
return resourceTypeDSLR;
}
}
@WorkbenchPartView
public IsWidget getWidget() {
return super.getWidget();
}
@WorkbenchMenu
public Menus getMenus() {
return menus;
}
}