/*
* Copyright 2014 Red Hat, Inc. and/or its affiliates.
*
* 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.dashbuilder.displayer.client.widgets.filter;
import java.util.HashMap;
import java.util.Map;
import javax.enterprise.context.Dependent;
import javax.enterprise.event.Event;
import javax.enterprise.event.Observes;
import javax.inject.Inject;
import com.google.gwt.user.client.ui.IsWidget;
import com.google.gwt.user.client.ui.Widget;
import org.dashbuilder.dataset.ColumnType;
import org.dashbuilder.dataset.DataSetMetadata;
import org.dashbuilder.dataset.filter.ColumnFilter;
import org.dashbuilder.dataset.filter.CoreFunctionFilter;
import org.dashbuilder.dataset.filter.CoreFunctionType;
import org.dashbuilder.dataset.filter.DataSetFilter;
import org.dashbuilder.dataset.filter.FilterFactory;
import org.dashbuilder.displayer.client.events.ColumnFilterChangedEvent;
import org.dashbuilder.displayer.client.events.ColumnFilterDeletedEvent;
import org.dashbuilder.displayer.client.events.DataSetFilterChangedEvent;
import org.jboss.errai.ioc.client.container.SyncBeanManager;
import org.uberfire.client.mvp.UberView;
@Dependent
public class DataSetFilterEditor implements IsWidget {
public interface View extends UberView<DataSetFilterEditor> {
void showNewFilterHome();
void clearColumnSelector();
void showColumnSelector();
void addColumn(String column);
int getSelectedColumnIndex();
void resetSelectedColumn();
void clearColumnFilterEditors();
void addColumnFilterEditor(ColumnFilterEditor editor);
void removeColumnFilterEditor(ColumnFilterEditor editor);
}
View view = null;
DataSetFilter filter = null;
DataSetMetadata metadata = null;
SyncBeanManager beanManager;
Event<DataSetFilterChangedEvent> changeEvent;
@Inject
public DataSetFilterEditor(View view,
SyncBeanManager beanManager,
Event<DataSetFilterChangedEvent> changeEvent) {
this.view = view;
this.beanManager = beanManager;
this.changeEvent = changeEvent;
view.init(this);
}
@Override
public Widget asWidget() {
return view.asWidget();
}
public DataSetFilter getFilter() {
return filter;
}
public void init(DataSetFilter filter, DataSetMetadata metadata) {
this.filter = filter;
this.metadata = metadata;
view.showNewFilterHome();
view.clearColumnSelector();
if (metadata != null) {
for (int i = 0; i < metadata.getNumberOfColumns(); i++) {
view.addColumn(metadata.getColumnId(i));
}
}
view.clearColumnFilterEditors();
if (filter != null) {
for (ColumnFilter columnFilter : filter.getColumnFilterList()) {
ColumnFilterEditor columnFilterEditor = beanManager.lookupBean(ColumnFilterEditor.class).newInstance();
columnFilterEditor.init(metadata, columnFilter);
view.addColumnFilterEditor(columnFilterEditor);
}
}
}
// View notifications
public void onNewFilterStart() {
view.showColumnSelector();
}
public void onNewFilterCancel() {
view.showNewFilterHome();
}
public void onCreateFilter() {
int selectedIdx = view.getSelectedColumnIndex();
String columnId = metadata.getColumnId(selectedIdx);
ColumnType columnType = metadata.getColumnType(selectedIdx);
CoreFunctionFilter columnFilter = FilterFactory.createCoreFunctionFilter(
columnId, columnType,
ColumnType.DATE.equals(columnType) ? CoreFunctionType.TIME_FRAME : CoreFunctionType.NOT_EQUALS_TO);
if (filter == null) {
filter = new DataSetFilter();
}
filter.addFilterColumn(columnFilter);
ColumnFilterEditor columnFilterEditor = beanManager.lookupBean(ColumnFilterEditor.class).newInstance();
columnFilterEditor.init(metadata, columnFilter);
columnFilterEditor.expand();
view.addColumnFilterEditor(columnFilterEditor);
view.resetSelectedColumn();
view.showNewFilterHome();
changeEvent.fire(new DataSetFilterChangedEvent(filter));
}
// Column filter child component callbacks
protected void onColumnFilterChanged(@Observes ColumnFilterChangedEvent event) {
changeEvent.fire(new DataSetFilterChangedEvent(filter));
}
protected void onColumnFilterDeleted(@Observes final ColumnFilterDeletedEvent event) {
ColumnFilterEditor editor = event.getColumnFilterEditor();
ColumnFilter columnFilter = editor.getFilter();
filter.getColumnFilterList().remove(columnFilter);
view.removeColumnFilterEditor(editor);
view.showNewFilterHome();
beanManager.destroyBean(editor);
changeEvent.fire(new DataSetFilterChangedEvent(filter));
}
}