Example usage for com.vaadin.server VaadinSession hasLock

Introduction

In this page you can find the example usage for com.vaadin.server VaadinSession hasLock.

Prototype

public boolean hasLock() 

Source Link

Document

Checks if the current thread has exclusive access to this VaadinSession.

Usage

From source file:com.haulmont.cuba.web.App.java

License:Apache License

/**
 * @return Current App instance. Can be invoked anywhere in application code.
 * @throws IllegalStateException if no application instance is bound to the current {@link VaadinSession}
 *//*  ww w  .  j  ava 2  s. c om*/
public static App getInstance() {
    VaadinSession vSession = VaadinSession.getCurrent();
    if (vSession == null) {
        throw new IllegalStateException("No VaadinSession found");
    }
    if (!vSession.hasLock()) {
        throw new IllegalStateException("VaadinSession is not owned by the current thread");
    }
    App app = vSession.getAttribute(App.class);
    if (app == null) {
        throw new IllegalStateException("No App is bound to the current VaadinSession");
    }
    return app;
}

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From source file:com.haulmont.cuba.web.App.java

License:Apache License

/**
 * @return true if an {@link App} instance is currently bound and can be safely obtained by {@link #getInstance()}
 *//*from   w w  w.ja  va 2s.c om*/
public static boolean isBound() {
    VaadinSession vSession = VaadinSession.getCurrent();
    return vSession != null && vSession.hasLock() && vSession.getAttribute(App.class) != null;
}

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From source file:com.haulmont.cuba.web.gui.executors.impl.WebBackgroundWorker.java

License:Apache License

@Override
public void checkUIAccess() {
    VaadinSession vaadinSession = VaadinSession.getCurrent();

    if (vaadinSession == null || !vaadinSession.hasLock()) {
        throw new IllegalConcurrentAccessException();
    }//from   w ww . j  a  v a 2  s  . c  om
}

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From source file:com.haulmont.cuba.web.sys.WebVaadinCompatibleSecurityContextHolder.java

License:Apache License

@Override
public SecurityContext get() {
    VaadinSession vaadinSession = VaadinSession.getCurrent();
    if (vaadinSession != null && vaadinSession.hasLock()) {
        return vaadinSession.getAttribute(SecurityContext.class);
    }/*from   w  ww .j av  a2 s  .  c om*/

    return super.get();
}

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From source file:com.haulmont.cuba.web.sys.WebVaadinCompatibleSecurityContextHolder.java

License:Apache License

@Override
public void set(SecurityContext securityContext) {
    VaadinSession vaadinSession = VaadinSession.getCurrent();
    if (vaadinSession != null && vaadinSession.hasLock()) {
        vaadinSession.setAttribute(SecurityContext.class, securityContext);
    } else {//from w  w  w . j  av  a 2  s  . c  o m
        super.set(securityContext);
    }
}

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From source file:de.metas.ui.web.vaadin.session.UserSession.java

License:Open Source License

public static final UserSession getCurrent() {
    final VaadinSession vaadinSession = VaadinSession.getCurrent();
    if (vaadinSession == null) {
        return null;
    }//from   w  ww  .j a  v  a 2s. c o  m

    if (vaadinSession.hasLock()) {
        return getCurrent(vaadinSession);
    } else {
        final Mutable<UserSession> userSessionRef = new Mutable<UserSession>();
        vaadinSession.accessSynchronously(new Runnable() {

            @Override
            public void run() {
                userSessionRef.setValue(getCurrent(vaadinSession));
            }
        });

        return userSessionRef.getValue();
    }
}

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From source file:info.magnolia.ui.form.field.factory.AbstractFieldFactoryTestCase.java

License:Open Source License

@Before
public void setUp() throws Exception {
    // Init Message & Providers

    i18NAuthoringSupport = mock(I18NAuthoringSupport.class);
    ComponentsTestUtil.setInstance(I18NAuthoringSupport.class, i18NAuthoringSupport);
    ComponentsTestUtil.setImplementation(TypeMapping.class, TypeMappingImpl.class);
    ComponentsTestUtil.setImplementation(Node2BeanTransformer.class, Node2BeanTransformerImpl.class);
    ComponentsTestUtil.setImplementation(Node2BeanProcessor.class, Node2BeanProcessorImpl.class);
    ComponentsTestUtil.setImplementation(MessagesManager.class, DefaultMessagesManager.class);

    SystemContext systemContext = mock(SystemContext.class);
    when(systemContext.getLocale()).thenReturn(DEFAULT_LOCALE);
    ComponentsTestUtil.setInstance(SystemContext.class, systemContext);

    VaadinSession vaadinSession = mock(VaadinSession.class);
    when(vaadinSession.getConverterFactory()).thenReturn(new DefaultConverterFactory());
    when(vaadinSession.getLocale()).thenReturn(DEFAULT_LOCALE);
    when(vaadinSession.hasLock()).thenReturn(true);
    ComponentsTestUtil.setInstance(VaadinSession.class, vaadinSession);

    // Init Session
    session = new MockSession(workspaceName);
    MockContext ctx = new MockContext();
    ctx.addSession(workspaceName, session);
    MgnlContext.setInstance(ctx);//w  w  w  . ja va 2 s . c  om

    // Create ConfiguredField POJO
    createConfiguredFieldDefinition();

    // Init Node and Item.
    Node rootNode = session.getRootNode();
    baseNode = rootNode.addNode(itemName);
    baseItem = new JcrNodeAdapter(baseNode);
    componentProvider = new MockComponentProvider();
    componentProvider.setInstance(I18NAuthoringSupport.class, mock(I18NAuthoringSupport.class));
    componentProvider.setInstance(UiContext.class, mock(UiContext.class));
}

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