Java tutorial
/* * Copyright (c) 2008-2017 Haulmont. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.haulmont.cuba.web.sys; import com.haulmont.cuba.core.sys.SecurityContext; import com.haulmont.cuba.core.sys.ThreadLocalSecurityContextHolder; import com.vaadin.server.VaadinSession; public class WebVaadinCompatibleSecurityContextHolder extends ThreadLocalSecurityContextHolder { @Override public SecurityContext get() { VaadinSession vaadinSession = VaadinSession.getCurrent(); if (vaadinSession != null && vaadinSession.hasLock()) { return vaadinSession.getAttribute(SecurityContext.class); } return super.get(); } @Override public void set(SecurityContext securityContext) { VaadinSession vaadinSession = VaadinSession.getCurrent(); if (vaadinSession != null && vaadinSession.hasLock()) { vaadinSession.setAttribute(SecurityContext.class, securityContext); } else { super.set(securityContext); } } }