I need major help in Haxeflixel with creating a simple button. My code is not working, "13: characters 2-5: Missing : ;"
package;
import flixel.FlxState;
import flixel.ui.FlxButton;
import flixel.FlxG;
class MenuState extends FlxState
{
override public function create()
{
var hairOne:FlxButton;
hairOne = new FlxButton(0, 0, "Hair #1", clickedHairOne)
add(hairOne);
super.create();
}
function clickedHairOne()
{
FlxG.switchState(new PlayState());
}
override public function update(elapsed:Float)
{
super.update(elapsed);
}
}
I have spent over 30 minutes, help
The error means that on the end of the line 13 you are missing a semicolon (;).
That is:
hairOne = new FlxButton(0, 0, "Hair #1", clickedHairOne)
should be
hairOne = new FlxButton(0, 0, "Hair #1", clickedHairOne);
Related
Currently I'm using WildFly 21.0.2 and JSON-B and JSON-P APIs. The Yasson version in WildFly modules is 1.0.5. I have the following JSON coming from REST endpoint:
{
"circuitInfoResponseList": [
{
"org.my.company.dto.FiberCircuitInfoResponse": {
"attendanceType": "BY_RADIUS",
"index": 0,
...
This is my JsonbDeserializer implementation:
public CircuitInfoResponse deserialize(JsonParser jsonParser, DeserializationContext deserializationContext, Type type) {
jsonParser.next();
String className = jsonParser.getString();
jsonParser.next();
try {
return deserializationContext.deserialize(Class.forName(className).asSubclass(CircuitInfoResponse.class), jsonParser);
} catch (ClassNotFoundException e) {
e.printStackTrace();
throw new JsonbException("Cannot deserialize object.");
}
//return deserializationContext.deserialize(FiberCircuitInfoResponse.class, jsonParser);
}
This method gets the SECOND entry from the json attendanceType and NOT the desired org.my.company.dto.FiberCircuitInfoResponse. BTW... when I serialize the JSON Object I can see the string org.my.company.dto.FiberCircuitInfoResponse however when it arrives and the client side it does NOT contain that string. It comes likes this:
[
{
"circuitInfoResponseList": [
{
"attendanceType": "BY_RADIUS",
"index": 0,
Without that information I cannot tell which subclass to create. I've already tried to follow this tips but without success:
https://javaee.github.io/jsonb-spec/users-guide.html
https://github.com/m0mus/JavaOne2016-JSONB-Demo/blob/4ecc22f69d57fda765631237d897b0a487f58d90/src/main/java/com/oracle/jsonb/demo/serializer/AnimalDeserializer.java
https://javaee.github.io/javaee-spec/javadocs/javax/json/bind/serializer/JsonbDeserializer.html
These are my POJO classes.
Parent class:
import lombok.*;
import lombok.experimental.SuperBuilder;
import javax.json.bind.annotation.JsonbTypeDeserializer;
#Data
#SuperBuilder
#NoArgsConstructor(access = AccessLevel.PROTECTED)
#JsonbTypeDeserializer(CircuitInfoResponseJsonbXerializer.class)
public class CircuitInfoResponse {
...
}
Child class:
import lombok.AccessLevel;
import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.NoArgsConstructor;
import lombok.experimental.SuperBuilder;
#Data
#SuperBuilder
#EqualsAndHashCode(callSuper = false)
#NoArgsConstructor(access = AccessLevel.PROTECTED)
public class FiberCircuitInfoResponse extends CircuitInfoResponse {
...
}
Serialize code:
Type responseListType = new ArrayList<SimulationServiceResponse>() {}.getClass().getGenericSuperclass();
JsonbConfig config = new JsonbConfig()
.withSerializers(new CircuitInfoResponseJsonbXerializer());
Jsonb jsonb = JsonbBuilder.create(config);
String json = jsonb.toJson(response, responseListType);
System.out.println(json);
return Response.status(Response.Status.OK).entity(json).build();
Deserialize code:
String restJsonResponse = restResponse.readEntity(String.class);
JsonbConfig config = new JsonbConfig()
.withDeserializers(new CircuitInfoResponseJsonbXerializer());
Jsonb jsonbCustom = JsonbBuilder.create(config);
List<SimulationServiceResponse> restResponseEntity = jsonbCustom.fromJson(restJsonResponse, new ArrayList<SimulationServiceResponse>() {}.getClass().getGenericSuperclass());
This is the class that contains a list of Parent class above:
import lombok.AccessLevel;
import lombok.Data;
import lombok.Getter;
import lombok.Setter;
#Data
public class SimulationServiceResponse {
...
#Getter(AccessLevel.NONE)
#Setter(AccessLevel.NONE)
private List<CircuitInfoResponse> circuitInfoResponseList;
public List<CircuitInfoResponse> getCircuitInfoResponseList() {
if (circuitInfoResponseList == null) {
circuitInfoResponseList = new ArrayList<>();
}
return circuitInfoResponseList;
}
public void setCircuitInfoResponseList(List<CircuitInfoResponse> list) {
this.circuitInfoResponseList = list;
}
}
Do you guys have any idea of what I'm doing wrong?
This question is a bit simplistic, but i couldn't figure it out for myself... What I'm trying to do is using a JavaFX Timeline to update my Polyline points. What I've got until now is as follows:
class MainView : View("Hello TornadoFX") {
var myLine: Polyline by singleAssign()
val myTimeline = timeline {
cycleCount = INDEFINITE
}
override val root = hbox {
myLine = polyline(0.0, 0.0, 100.0, 100.0)
myTimeline.apply {
keyFrames += KeyFrame((1/10.0).seconds, {
myLine.points.forEachIndexed { i, d ->
myLine.points[i] = d + 1
}
println(myLine.points)
})
play()
}
}
}
Although the point list does update the values, as shown when printing them, the change is not reflected in the ui.
Thank you very much for your help!
I have not worked with TornadoFX earlier, so I gave a try with the normal JavaFX. Looks like the the UI is updating when the points are updated. May be the issue is something related to your implementation with TornadoFX.
Please check below the working example.
import javafx.animation.Animation;
import javafx.animation.KeyFrame;
import javafx.animation.Timeline;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.Pane;
import javafx.scene.shape.Polyline;
import javafx.stage.Stage;
import javafx.util.Duration;
public class PolyLinePointsUpdateDemo extends Application {
#Override
public void start(Stage primaryStage) throws Exception {
Pane root = new Pane();
Scene scene = new Scene(root, 600,600);
primaryStage.setScene(scene);
primaryStage.setTitle("PolyLine Points Update");
primaryStage.show();
Polyline line = new Polyline(0.0, 0.0, 100.0, 100.0);
root.getChildren().add(line);
Timeline timeline = new Timeline();
timeline.getKeyFrames().add(new KeyFrame(Duration.millis(250), e->{
for (int i = 0; i < line.getPoints().size(); i++) {
double d = line.getPoints().get(i);
line.getPoints().set(i, d+1);
}
System.out.println(line.getPoints());
}));
timeline.setCycleCount(Animation.INDEFINITE);
timeline.play();
}
public static void main(String... a){
Application.launch(a);
}
}
Figured out that the issue was simply using an hbox as the parent layout, instead of a pane, which handles the chidren positioning with absolute coordinates.
The Translate Transition does not output. It uses a method in the main class. I believe it is not working because it is used as an object. There has to be a different code to implement. It uses a method in a main and then puts it into a tester. However, I do not know how to use it because it uses a constructor/object as well. Then, the object turns and changes into a node which I changed it. I do not know how the Translate Transition method is attached to the object and displays it into the javafx console. Please help solve the problem for positive feedback as it shows.
import javafx.animation.TranslateTransition;
import javafx.scene.paint.Color;
import javafx.scene.shape.Circle;
import javafx.scene.shape.Shape;
import javafx.util.Duration;
public class AnxiousShapes {
private Shape shape;
private double delay ;
private int howFarToMoveX;
private int howFarToMoveY;
public AnxiousShapes(int type, int x, int y, int size, double delay, Color color, int hftmX, int hftmY) {
if (type == 0) {shape = new Circle(x, y, size, color);}
//these are the only lines you can change
//in this main class
//else if (type == 1){shape = new Rectangle(x,y,color);}
//else if (type == 2){shape = new Polygon();}
//else if (type == 3) {shape = new Circle(x, y, size, color);}
//else { System.out.println("Error in type");shape = new
//Circle(???????);}
this.delay = delay;
this.howFarToMoveX = hftmX;
this.howFarToMoveY = hftmY;
}
// getter and setters
public TranslateTransition calculateTt() {
TranslateTransition tt = new TranslateTransition(Duration.seconds(this.delay), this.shape);
tt.setToX(this.shape.getLayoutX() + howFarToMoveX);
tt.setToY(shape.getLayoutY() + howFarToMoveY);
// Let the animation run forever -- if the shape
// tries to move "off-screen" it will return to the beginning
tt.setCycleCount(TranslateTransition.INDEFINITE);
return tt;
}
#Override
public String toString() {
return "AnxiousShape [shape=" + shape + ", delay=" + delay + ", howFarToMoveX=" + howFarToMoveX
+ ", howFarToMoveY=" + howFarToMoveY + "]";
}
}
import javafx.animation.TranslateTransition;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.Pane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Circle;
import javafx.stage.Stage;
import javafx.util.Duration;
import javafx.scene.Group;
import javafx.scene.Node;
import java.util.Random;
public class AnxiousShapesTester extends Application {
#Override
public void start(Stage stage) {
// adding the new things
Group root = new Group();
stage.setTitle("Welcome to JavaFX!");
// create the shape circle
AnxiousShapes circle1 = new AnxiousShapes(0, 200, 200, 50, 15,
Color.GREEN, 10 ,35);
root.getChildren().add(circle1.getShape());
// this does not work
// TranslateTransition trans = circle1.calculateTt();
// trans.setNode(root);
// trans.play();
// and I tried this and I already have the movement in constructor for
// delay and x and y but TranslateTransition
// asks for duration.millis(500)
TranslateTransition tt = new
TranslateTransition(Duration.millis(500), root);
tt.play();
Scene scene = new Scene(root, 600, 600, Color.WHITE);
stage.setScene(scene);
stage.show();
}
public static void main(String[] args) {
Application.launch(args);
}
}
In a comment, you say, "this does not work." The problem is trans.setNode(root), which attempts to make root "The target node of this TranslateTransition." Your implementation of calculateTt() already specifies this.shape as the target node. Instead, add a suitable accessor to AnxiousShapes and use the transition as constructed; the following changes are illustrated below:
public Shape getShape() { return this.shape; }
…
AnxiousShapes circle1 = new AnxiousShapes(0, 100, 100, 100, 3, Color.GREEN, 400, 400);
root.getChildren().add(circle1.getShape());
TranslateTransition trans = circle1.calculateTt();
trans.play();
I'm having simple chunk CSV processing job.
I would like to change execution flow when there is particular type of error during processing (eg. invalid line structure)
In order to prevent throwing errors I need to provide custom exceptionHandler that will swallow parsing exception:
#Bean
fun processCsvStep(
stepBuilderFactory: StepBuilderFactory,
reader: ItemReader<InputRow>,
processor: ItemProcessor<InputRow, OutputObject>,
writer: ItemWriter<OutputObject>
) = stepBuilderFactory.get(PROCESS_CSV_STEP)
.chunk<InputRow, OutputObject>(
CHUNKS_NUMBER
)
.reader(reader)
.processor(processor)
.writer(writer)
.exceptionHandler { context: RepeatContext, throwable: Throwable ->
context.setTerminateOnly()
logger.error { "Exception during parsing: ${throwable.message}" }
}
.build()!!
Then in my Job I can rely only on rollback count:
#Bean
fun createCsvJob(jobs: JobBuilderFactory, processCsvStep: Step, moveCsvStep: Step, moveFailedCsvStep: Step) = jobs.get(PROCESS_CSV_JOB)
.start(processCsvStep)
.next { jobExecution: JobExecution, stepExecution: StepExecution ->
return#next when (stepExecution.rollbackCount) {
0 -> FlowExecutionStatus.COMPLETED
else -> FlowExecutionStatus.FAILED
}
}
.on(FlowExecutionStatus.FAILED.name)
.to(moveFailedCsvStep)
.on(FlowExecutionStatus.COMPLETED.name)
.to(moveCsvStep)
.end()
.build()!!
Is there any way to pass information from exception handler to JobExecutionDecider? I would like to make execution decision based on type of exception that happened during parsing. Is this possible?
I would like to make execution decision based on type of exception that happened during parsing. Is this possible?
You can get access to the exception that happened during the step from the decider through stepExecution#getFailureExceptions. Here is an example:
import java.util.Arrays;
import java.util.List;
import org.springframework.batch.core.Job;
import org.springframework.batch.core.JobParameters;
import org.springframework.batch.core.Step;
import org.springframework.batch.core.configuration.annotation.EnableBatchProcessing;
import org.springframework.batch.core.configuration.annotation.JobBuilderFactory;
import org.springframework.batch.core.configuration.annotation.StepBuilderFactory;
import org.springframework.batch.core.job.flow.FlowExecutionStatus;
import org.springframework.batch.core.job.flow.JobExecutionDecider;
import org.springframework.batch.core.launch.JobLauncher;
import org.springframework.batch.item.ItemReader;
import org.springframework.batch.item.ItemWriter;
import org.springframework.batch.item.support.ListItemReader;
import org.springframework.batch.repeat.RepeatStatus;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
#Configuration
#EnableBatchProcessing
public class MyJob {
#Autowired
private JobBuilderFactory jobs;
#Autowired
private StepBuilderFactory steps;
#Bean
public ItemReader<Integer> itemReader() {
return new ListItemReader<>(Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10));
}
#Bean
public ItemWriter<Integer> itemWriter() {
return items -> {
for (Integer item : items) {
if (items.contains(3)) {
throw new IllegalArgumentException("no 3!");
}
System.out.println("item = " + item);
}
};
}
#Bean
public Step step1() {
return steps.get("step1")
.<Integer, Integer>chunk(5)
.reader(itemReader())
.writer(itemWriter())
.build();
}
#Bean
public Step step2() {
return steps.get("step2")
.tasklet((contribution, chunkContext) -> {
System.out.println("step2");
return RepeatStatus.FINISHED;
})
.build();
}
#Bean
public Step step3() {
return steps.get("step3")
.tasklet((contribution, chunkContext) -> {
System.out.println("step3");
return RepeatStatus.FINISHED;
})
.build();
}
#Bean
public JobExecutionDecider decider() {
return (jobExecution, stepExecution) -> {
int rollbackCount = stepExecution.getRollbackCount();
List<Throwable> failureExceptions = stepExecution.getFailureExceptions();
System.out.println("rollbackCount = " + rollbackCount);
System.out.println("failureExceptions = " + failureExceptions);
// make the decision based on rollbackCount and/or failureExceptions and return status accordingly
return FlowExecutionStatus.COMPLETED;
};
}
#Bean
public Job job() {
return jobs.get("job")
.start(step1())
.on("*").to(decider())
.from(decider()).on("COMPLETED").to(step2())
.from(decider()).on("FAILED").to(step3())
.build()
.build();
}
public static void main(String[] args) throws Exception {
ApplicationContext context = new AnnotationConfigApplicationContext(MyJob.class);
JobLauncher jobLauncher = context.getBean(JobLauncher.class);
Job job = context.getBean(Job.class);
jobLauncher.run(job, new JobParameters());
}
}
In this example, if an exception occurs during step1, the decider can get it from the step execution and make the decision accordingly (go to step2 or step3).
So I'm not sure you really need an exception handler and a way to pass information to the decider. The same idea applies of you want to make the decision based on the rollbackCount, commitCount, readCount, or any other metric.
Hope this helps.
I was trying to solve my problem with colored progress bars in this thread. The solution was present, but then I ran into another problem: I can't change color dynamically from my code. I want to do it right from my code, not with pre-defined .css. Generally I can do it, but I run into some difficulties when I try to do it with more than one progess bar.
public class JavaFXApplication36 extends Application {
#Override
public void start(Stage primaryStage) {
AnchorPane root = new AnchorPane();
ProgressBar pbRed = new ProgressBar(0.4);
ProgressBar pbGreen = new ProgressBar(0.6);
pbRed.setLayoutY(10);
pbGreen.setLayoutY(30);
pbRed.setStyle("-fx-accent: red;"); // line (1)
pbGreen.setStyle("-fx-accent: green;"); // line (2)
root.getChildren().addAll(pbRed, pbGreen);
Scene scene = new Scene(root, 150, 50);
primaryStage.setTitle("Hello World!");
primaryStage.setScene(scene);
primaryStage.show();
}
}
I always get 2 red progressbars with it! It seems that code in line (1) changes the style of ProgressBar class, not the instance.
Another strange moment is that deleting line (1) don't result in 2 green progress bars. So I can figure that line (2) is completely useless!! WHY?! That's definitely getting odd.
Is there any way to set different colors for separate progressbars?
See also the StackOverflow JavaFX ProgressBar Community Wiki.
There is a workaround you can use until a bug to fix the sample code in your question is filed and fixed.
The code in this answer does a node lookup on the ProgressBar contents, then dynamically modifies the bar colour of the progress bar to any value you like.
import javafx.application.Application;
import javafx.beans.value.*;
import javafx.geometry.Pos;
import javafx.scene.*;
import javafx.scene.control.*;
import javafx.scene.layout.*;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
public class ProgressBarDynamicColor extends Application {
public static void main(String[] args) { launch(args); }
#Override public void start(Stage stage) {
PickedColorBar aquaBar = new PickedColorBar(0.4, Color.AQUA);
PickedColorBar fireBar = new PickedColorBar(0.6, Color.FIREBRICK);
HBox layout = new HBox(20);
layout.getChildren().setAll(aquaBar, fireBar);
layout.setStyle("-fx-background-color: -fx-box-border, cornsilk; -fx-padding: 15;");
stage.setScene(new Scene(layout));
stage.show();
aquaBar.wasShown();
fireBar.wasShown();
}
class PickedColorBar extends VBox {
private final ProgressBar bar;
private final ColorPicker picker;
private boolean wasShownCalled = false;
final ChangeListener<Color> COLOR_LISTENER = new ChangeListener<Color>() {
#Override public void changed(ObservableValue<? extends Color> value, Color oldColor, Color newColor) {
setBarColor(bar, newColor);
}
};
public PickedColorBar(double progress, Color initColor) {
bar = new ProgressBar(progress);
picker = new ColorPicker(initColor);
setSpacing(10);
setAlignment(Pos.CENTER);
getChildren().setAll(bar, picker);
}
// invoke only after the progress bar has been shown on a stage.
public void wasShown() {
if (!wasShownCalled) {
wasShownCalled = true;
setBarColor(bar, picker.getValue());
picker.valueProperty().addListener(COLOR_LISTENER);
}
}
private void setBarColor(ProgressBar bar, Color newColor) {
bar.lookup(".bar").setStyle("-fx-background-color: -fx-box-border, " + createGradientAttributeValue(newColor));
}
private String createGradientAttributeValue(Color newColor) {
String hsbAttribute = createHsbAttributeValue(newColor);
return "linear-gradient(to bottom, derive(" + hsbAttribute+ ",30%) 5%, derive(" + hsbAttribute + ",-17%))";
}
private String createHsbAttributeValue(Color newColor) {
return
"hsb(" +
(int) newColor.getHue() + "," +
(int) (newColor.getSaturation() * 100) + "%," +
(int) (newColor.getBrightness() * 100) + "%)";
}
}
}
The code uses inlined string processing of css attributes to manipulate Region backgrounds. Future JavaFX versions (e.g. JDK8+) will include a public Java API to manipulate background attributes, making obsolete the string processing of attributes from the Java program.
Sample program output: