/*
* Copyright 2011 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.guided.dtable.client.wizard.pages;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import javax.enterprise.context.Dependent;
import javax.enterprise.event.Event;
import javax.inject.Inject;
import org.drools.workbench.models.datamodel.imports.Import;
import org.drools.workbench.models.guided.dtable.shared.model.GuidedDecisionTable52;
import org.drools.workbench.screens.guided.dtable.client.resources.i18n.GuidedDecisionTableConstants;
import org.drools.workbench.screens.guided.dtable.client.widget.Validator;
import org.kie.workbench.common.widgets.client.datamodel.ImportAddedEvent;
import org.kie.workbench.common.widgets.client.datamodel.ImportRemovedEvent;
import org.uberfire.client.callbacks.Callback;
/**
* A page for the guided Decision Table Wizard to define imports
*/
@Dependent
public class ImportsPage extends AbstractGuidedDecisionTableWizardPage
implements
ImportsPageView.Presenter {
@Inject
private ImportsPageView view;
@Inject
private Event<ImportAddedEvent> importAddedEvent;
@Inject
private Event<ImportRemovedEvent> importRemovedEvent;
private Validator validator;
@Override
public String getTitle() {
return GuidedDecisionTableConstants.INSTANCE.DecisionTableWizardImports();
}
@Override
public void initialise() {
view.init( this );
final List<String> chosenImports = getChosenImports();
final List<String> availableImports = Arrays.asList( oracle.getExternalFactTypes() );
view.setChosenImports( chosenImports );
view.setAvailableImports( availableImports );
validator = getValidator();
content.setWidget( view );
}
private List<String> getChosenImports() {
final List<String> imports = new ArrayList<String>();
for ( Import imp : model.getImports().getImports() ) {
imports.add( imp.getType() );
}
return imports;
}
@Override
public void prepareView() {
// Nothing needs to be done when the page is viewed; it is setup in initialise
}
@Override
public void isComplete( final Callback<Boolean> callback ) {
//Imports are optional
callback.callback( true );
}
@Override
public void addImport( final String fqcn ) {
//Filter DMO
final Import addedImport = new Import( fqcn );
model.getImports().addImport( addedImport );
oracle.filter( model.getImports() );
//Signal change to any other interested consumers (e.g. some editors support rendering of unknown fact-types)
importAddedEvent.fire( new ImportAddedEvent( oracle,
addedImport ) );
}
@Override
public boolean removeImport( final String fqcn ) {
//Check import can be removed
if ( validator.isTypeUsed( fqcn ) ) {
return false;
}
//Filter DMO
final Import removedImport = new Import( fqcn );
model.getImports().removeImport( removedImport );
oracle.filter( model.getImports() );
//Signal change to any other interested consumers (e.g. some editors support rendering of unknown fact-types)
importRemovedEvent.fire( new ImportRemovedEvent( oracle,
removedImport ) );
return true;
}
@Override
public void makeResult( final GuidedDecisionTable52 model ) {
//Nothing to do; imports are adjusted as and when they're removed in the UI
}
}