org.hbrs.nosql.mongoweb.gui.views.UseCase1.java Source code

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Here is the source code for org.hbrs.nosql.mongoweb.gui.views.UseCase1.java

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package org.hbrs.nosql.mongoweb.gui.views;

import com.vaadin.navigator.View;
import com.vaadin.navigator.ViewChangeListener;
import com.vaadin.ui.Button;
import com.vaadin.ui.Label;
import com.vaadin.ui.TextField;
import com.vaadin.ui.VerticalLayout;
import org.hbrs.nosql.mongoweb.db.MongoDBConnector;
import org.hbrs.nosql.mongoweb.gui.components.TopPanel;

import java.time.Clock;
import java.time.Duration;
import java.time.Instant;
import java.time.LocalTime;
import java.util.List;

import org.hbrs.nosql.mongoweb.model.UseCase;

/**
 * @author Franz
 */
public class UseCase1 extends AbstractUseCase {
    @Override
    protected void setUp() {
        //MongoDB Connector
        MongoDBConnector mongo = new MongoDBConnector();

        VerticalLayout uc1 = new VerticalLayout();

        TextField uc1input = new TextField();

        uc1input.setCaption("Geben Sie ein Thema ein, welches Sie interessiert!");

        Button button = new Button("Suche");

        button.addClickListener(e -> {
            uc1.removeAllComponents();

            LocalTime t1 = LocalTime.now();

            // load list with values
            List uc1answer = mongo.getQuery1(uc1input.getValue());

            LocalTime t2 = LocalTime.now();
            Duration elapsed = Duration.between(t1, t2);

            // query over list
            for (int i = 0; i < uc1answer.size(); i++) {
                //create and post labels for list elements
                uc1.addComponent(new Label((String) uc1answer.get(i)));
            }

            uc1.addComponent(new Label("Time: " + elapsed));

            addComponent(uc1);
            /*
            layout.addComponent(new Label("I got " + mongo.getDocsinCollection()
                + " Docs in Store. here They are:"));
            */
        });

        addComponents(uc1input, button);
        setMargin(true);
        setSpacing(true);
    }

    @Override
    protected UseCase getUseCase() {
        return (UseCase.UC1);
    }
}