Examples with StreamResource com.vaadin.flow.server.StreamResource used on opensource projects

Example 1 with StreamResource

use of com.vaadin.flow.server.StreamResource in project flow by vaadin.

the class StreamResourceRegistryTest method registerTwoResourcesWithSameName_resourcesHasDifferentURI.

@Test
public void registerTwoResourcesWithSameName_resourcesHasDifferentURI() {
    StreamResourceRegistry registry = session.getResourceRegistry();
    StreamResource resource1 = new StreamResource("name", () -> makeEmptyStream());
    StreamRegistration registration1 = registry.registerResource(resource1);
    StreamResource resource2 = new StreamResource("name", () -> makeEmptyStream());
    StreamRegistration registration2 = registry.registerResource(resource2);
    Assert.assertNotEquals("Two different resource are registered to the same URI", registration1.getResourceUri(), registration2.getResourceUri());
    registration1.unregister();
    Assert.assertTrue("Second resource is not found after first resource has been unregistered", registry.getResource(registration2.getResourceUri()).isPresent());
}

Example 2 with StreamResource

use of com.vaadin.flow.server.StreamResource in project flow by vaadin.

the class StreamResourceRegistryTest method getResourceUrlIsEncoded.

@Test
public void getResourceUrlIsEncoded() throws UnsupportedEncodingException {
    StreamResourceRegistry registry = session.getResourceRegistry();
    StreamResource resource = new StreamResource("a?b=c d&e", () -> makeEmptyStream());
    StreamRegistration registration = registry.registerResource(resource);
    URI url = registration.getResourceUri();
    String suffix = URLEncoder.encode(resource.getName(), StandardCharsets.UTF_8.name());
    Assert.assertTrue("Resource url is not encoded", url.toString().endsWith(suffix));
}

Example 3 with StreamResource

use of com.vaadin.flow.server.StreamResource in project flow by vaadin.

the class StreamResourceTest method setContentType.

@Test
public void setContentType() {
    StreamResource resource = new StreamResource("foo", () -> makeEmptyStream());
    resource.setContentType("bar");
    Assert.assertNotNull(resource.getContentTypeResolver());
    assertContentType(resource, resource.getContentTypeResolver());
}

Example 4 with StreamResource

use of com.vaadin.flow.server.StreamResource in project flow by vaadin.

the class StreamResourceView method onAttach.

@Override
protected void onAttach(AttachEvent attachEvent) {
    StreamResource resource = new StreamResource("filename", () -> new ByteArrayInputStream("Hello world".getBytes(StandardCharsets.UTF_8)));
    Anchor download = new Anchor("", "Download file");
    download.setHref(resource);
    download.setId("download");
    add(download);
}

Example 5 with StreamResource

use of com.vaadin.flow.server.StreamResource in project flow by vaadin.

the class ElementTest method setResourceAttribute_attachElement_resourceIsRegistered.

@Test
public void setResourceAttribute_attachElement_resourceIsRegistered() throws URISyntaxException {
    UI ui = createUI();
    UI.setCurrent(ui);
    StreamResource resource = createEmptyResource("resource");
    Element element = ElementFactory.createDiv();
    element.setAttribute("foo", resource);
    ui.getElement().appendChild(element);
    Assert.assertTrue(element.hasAttribute("foo"));
    String uri = element.getAttribute("foo");
    Optional<StreamResource> res = ui.getSession().getResourceRegistry().getResource(StreamResource.class, new URI(uri));
    Assert.assertTrue(res.isPresent());
}