Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import javafx.beans.property.BooleanProperty;
import javafx.beans.property.ReadOnlyBooleanProperty;
import javafx.beans.property.SimpleBooleanProperty;
import javafx.beans.value.ChangeListener;

import javafx.concurrent.Worker;

import java.util.function.Consumer;

public class Main {
    /**
     * The given consumer will be called once the worker is finished. The result of the worker
     * will be passed to the consumer.
     * @param worker the worker
     * @param consumer the consumer
     * @param <T> the resukt type of the worker
     */
    public static <T> void then(Worker<T> worker, Consumer<T> consumer) {
        ReadOnlyBooleanProperty doneProperty = createIsDoneProperty(worker);
        ChangeListener<Boolean> listener = (o, oldValue, newValue) -> {
            if (newValue) {
                consumer.accept(worker.getValue());
            }
        };
        doneProperty.addListener(listener);
    }

    /**
     * Returns a property that defines the state of the given worker. Once the worker is done the value of the
     * property will be set to true
     * @param worker the worker
     * @return the property
     */
    public static ReadOnlyBooleanProperty createIsDoneProperty(Worker<?> worker) {
        final BooleanProperty property = new SimpleBooleanProperty();
        Consumer<Worker.State> stateChecker = (s) -> {
            if (s.equals(Worker.State.CANCELLED) || s.equals(Worker.State.FAILED)
                    || s.equals(Worker.State.SUCCEEDED)) {
                property.setValue(true);
            } else {
                property.setValue(false);
            }
        };
        worker.stateProperty().addListener((o, oldValue, newValue) -> stateChecker.accept(newValue));
        stateChecker.accept(worker.getState());
        return property;

    }
}