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/*
* Copyright 2000-2014 Vaadin Ltd.
*
* 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 com.vaadin.tests.dataprovider;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Random;
import com.vaadin.annotations.Widgetset;
import com.vaadin.server.VaadinRequest;
import com.vaadin.server.communication.data.typed.CollectionDataSource;
import com.vaadin.server.communication.data.typed.DataProvider;
import com.vaadin.server.communication.data.typed.DataSource;
import com.vaadin.server.communication.data.typed.SimpleDataProvider;
import com.vaadin.server.communication.data.typed.TypedDataGenerator;
import com.vaadin.tests.components.AbstractTestUI;
import com.vaadin.tests.fieldgroup.ComplexPerson;
import com.vaadin.tests.widgetset.TestingWidgetSet;
import com.vaadin.ui.AbstractComponent;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Button.ClickListener;
import com.vaadin.ui.HorizontalLayout;
import elemental.json.JsonObject;
@Widgetset(TestingWidgetSet.NAME)
public class DummyDataProviderUI extends AbstractTestUI {
public static class DummyDataComponent extends AbstractComponent {
private SimpleDataProvider<ComplexPerson> dataProvider;
public DummyDataComponent(DataSource<ComplexPerson> data) {
dataProvider = DataProvider.create(data, this);
dataProvider
.addDataGenerator(new TypedDataGenerator<ComplexPerson>() {
@Override
public void generateData(ComplexPerson data,
JsonObject dataObject) {
String name = data.getLastName() + ", "
+ data.getFirstName();
dataObject.put("name", name);
}
@Override
public void destroyData(ComplexPerson data) {
}
});
}
}
private static class MyDataSource extends
CollectionDataSource<ComplexPerson> {
public MyDataSource(Collection<ComplexPerson> data) {
super(data);
}
public void sort(Comparator<ComplexPerson> c) {
Collections.sort(backend, c);
fireDataChange();
}
public List<ComplexPerson> getData() {
return Collections.unmodifiableList(backend);
}
}
public static final int RANDOM_SEED = 1337;
public static final int PERSON_COUNT = 20;
public static final Comparator<ComplexPerson> nameComparator = new Comparator<ComplexPerson>() {
@Override
public int compare(ComplexPerson p1, ComplexPerson p2) {
int fn = p1.getFirstName().compareTo(p2.getFirstName());
int ln = p1.getLastName().compareTo(p2.getLastName());
return fn != 0 ? fn : ln;
}
};
private Random r = new Random(RANDOM_SEED);
private MyDataSource dataSource;
private DummyDataComponent dummy;
@Override
protected void setup(VaadinRequest request) {
dataSource = new MyDataSource(createPersons(PERSON_COUNT, r));
dummy = new DummyDataComponent(dataSource);
Button remove = new Button("Remove third", new ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
dataSource.remove(dataSource.getData().get(2));
}
});
Button add = new Button("Add new", new ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
dataSource.save(ComplexPerson.create(r));
}
});
Button sort = new Button("Sort content", new ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
dataSource.sort(nameComparator);
}
});
Button edit = new Button("Edit first", new ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
ComplexPerson p = dataSource.iterator().next();
p.setFirstName("Foo");
dataSource.save(p);
}
});
// Button Ids
remove.setId("remove");
add.setId("add");
sort.setId("sort");
edit.setId("edit");
addComponent(new HorizontalLayout(add, remove, sort, edit));
addComponent(dummy);
}
public static List<ComplexPerson> createPersons(int count, Random r) {
List<ComplexPerson> c = new ArrayList<ComplexPerson>();
for (int i = 0; i < count; ++i) {
c.add(ComplexPerson.create(r));
}
return c;
}
}
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