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Added register bucket component

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This commit is contained in:
Andrey Terentev 2023-11-17 15:59:02 +07:00
parent 0abe59c74a
commit 5b63ca06ab
2 changed files with 126 additions and 5 deletions
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118
LoadBalancerWeb/src/main/java/ru/dragonestia/loadbalancer/web/component/RegisterBucket.java Normal file
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@ -0,0 +1,118 @@
package ru.dragonestia.loadbalancer.web.component;
import com.vaadin.flow.component.Unit;
import com.vaadin.flow.component.button.Button;
import com.vaadin.flow.component.button.ButtonVariant;
import com.vaadin.flow.component.details.Details;
import com.vaadin.flow.component.html.H2;
import com.vaadin.flow.component.notification.Notification;
import com.vaadin.flow.component.notification.NotificationVariant;
import com.vaadin.flow.component.orderedlayout.VerticalLayout;
import com.vaadin.flow.component.textfield.Autocomplete;
import com.vaadin.flow.component.textfield.TextArea;
import com.vaadin.flow.component.textfield.TextField;
import org.springframework.lang.Nullable;
import ru.dragonestia.loadbalancer.web.model.Bucket;
import ru.dragonestia.loadbalancer.web.model.Node;
import ru.dragonestia.loadbalancer.web.model.type.SlotLimit;
import java.util.function.Function;
public class RegisterBucket extends Details {
private final Node node;
private final Function<Bucket, Response> onSubmit;
private final TextField identifierField;
private final TextArea payloadField;
public RegisterBucket(Node node, Function<Bucket, Response> onSubmit) {
super(new H2("Register bucket"));
this.node = node;
this.onSubmit = onSubmit;
var layout = new VerticalLayout();
layout.add(createNodeIdentifierField());
layout.add(identifierField = createBucketIdentifierField());
layout.add(payloadField = createPayloadField());
layout.add(createSubmitButton());
add(layout);
}
private TextField createNodeIdentifierField() {
var field = new TextField("Node identifier");
field.setMinWidth(20, Unit.REM);
field.setValue(node.identifier());
field.setReadOnly(true);
return field;
}
private TextField createBucketIdentifierField() {
var field = new TextField("Identifier");
field.setMinWidth(20, Unit.REM);
field.setPlaceholder("example-bucket-id");
field.setHelperText("The field can contain only lowercase letters, numbers and a dash character");
field.setRequired(true);
field.setPattern("^[a-z\\d-]+$");
field.setAutocomplete(Autocomplete.OFF);
field.addValueChangeListener(event -> field.setValue(event.getValue().trim()));
return field;
}
private TextArea createPayloadField() {
var field = new TextArea("Payload");
field.setMinWidth(20, Unit.REM);
field.setPlaceholder("{\"value\": \"Hello world!\"}");
field.setHelperText("Any useful data here");
return field;
}
private Button createSubmitButton() {
var button = new Button("Register");
button.addThemeVariants(ButtonVariant.LUMO_PRIMARY);
button.addClickListener(event -> onClick());
return button;
}
public void clear() {
identifierField.clear();
payloadField.clear();
}
private @Nullable String validateForm(String identifier) {
if (identifier.isEmpty()) {
return "Node identifier cannot be empty";
}
return null;
}
private void onClick() {
var nodeIdentifier = identifierField.getValue();
String error = null;
if (identifierField.isInvalid() || (error = validateForm(nodeIdentifier)) != null) {
if (identifierField.isInvalid()) {
error = "Invalid bucket identifier format";
}
Notification.show(error, 3000, Notification.Position.TOP_END)
.addThemeVariants(NotificationVariant.LUMO_ERROR);
return;
}
var bucket = Bucket.create(nodeIdentifier, node, SlotLimit.unlimited(), payloadField.getValue());
var response = onSubmit.apply(bucket);
clear();
if (response.error()) {
Notification.show(response.reason(), 3000, Notification.Position.TOP_END)
.addThemeVariants(NotificationVariant.LUMO_ERROR);
return;
}
Notification.show("Bucket was successfully registered", 3000, Notification.Position.TOP_END)
.addThemeVariants(NotificationVariant.LUMO_SUCCESS);
}
public record Response(boolean error, @Nullable String reason) {}
}

13
LoadBalancerWeb/src/main/java/ru/dragonestia/loadbalancer/web/page/NodeDetailsPage.java
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@ -1,12 +1,8 @@
package ru.dragonestia.loadbalancer.web.page;
import com.vaadin.flow.component.Html;
import com.vaadin.flow.component.HtmlComponent;
import com.vaadin.flow.component.HtmlContainer;
import com.vaadin.flow.component.Text;
import com.vaadin.flow.component.html.H2;
import com.vaadin.flow.component.html.Hr;
import com.vaadin.flow.component.html.Span;
import com.vaadin.flow.component.orderedlayout.VerticalLayout;
import com.vaadin.flow.router.BeforeEnterEvent;
import com.vaadin.flow.router.BeforeEnterObserver;
@ -15,6 +11,7 @@ import com.vaadin.flow.router.Route;
import lombok.Getter;
import ru.dragonestia.loadbalancer.web.component.BucketList;
import ru.dragonestia.loadbalancer.web.component.NavPath;
import ru.dragonestia.loadbalancer.web.component.RegisterBucket;
import ru.dragonestia.loadbalancer.web.model.Bucket;
import ru.dragonestia.loadbalancer.web.model.Node;
import ru.dragonestia.loadbalancer.web.model.type.LoadBalancingMethod;
@ -28,6 +25,7 @@ import java.util.List;
public class NodeDetailsPage extends VerticalLayout implements BeforeEnterObserver {
private Node node;
private RegisterBucket registerBucket;
private BucketList bucketList;
@Override
@ -53,6 +51,12 @@ public class NodeDetailsPage extends VerticalLayout implements BeforeEnterObserv
new NavPath.Point(node.identifier(), "/nodes/" + node.identifier())));
printNodeDetails(node);
add(new Hr());
add(registerBucket = new RegisterBucket(node, (bucket) -> {
// TODO: register bucket and getting all buckets
return new RegisterBucket.Response(false, "");
}));
add(new Hr());
add(bucketList = new BucketList(buckets));
}
@ -64,6 +68,5 @@ public class NodeDetailsPage extends VerticalLayout implements BeforeEnterObserv
layout.add(new Html("<span>Mode: <b>" + node.method().getName() + "</b></span>"));
add(layout);
add(new Hr());
}
}