Java tutorial
/* * GANT BSD Software License * * Copyright (c) 2017 - 2020, GANT * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the * following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following * disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the * following disclaimer in the documentation and/or other materials provided with the distribution. * * 3. Neither the name of the GANT nor the names of its contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * * Disclaimer: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ package org.geant.sat.ui.utils; import java.util.HashSet; import java.util.List; import java.util.Set; import org.geant.sat.api.dto.AssessorDetails; import com.vaadin.ui.ItemCaptionGenerator; /** class implementing helpers for assessor details.*/ @SuppressWarnings("serial") public class AssessorDetailsHelper implements ItemCaptionGenerator<AssessorDetails> { @Override public String apply(AssessorDetails item) { return display(item); } /** * Converts assessor to a human readable string. * * @param item * assessor details. * @return assessor display string. */ public static String display(AssessorDetails item) { if (item.getId() == null) { return item.getValue(); } return item.getId() + ": " + item.getValue(); } /** * Creates a new set of assessor details by picking assessors from "pool" * based on "selection". The assessors are picked by matching id. * * @param pool * to pick assessors from * @param selection * assessors to be picked. * @return assessors */ public static Set<AssessorDetails> selectionToSet(List<AssessorDetails> pool, List<AssessorDetails> selection) { Set<AssessorDetails> result = new HashSet<AssessorDetails>(); for (AssessorDetails assessorDetail : pool) { for (AssessorDetails preselectedAssessorDetail : selection) { if (preselectedAssessorDetail.getId().equals(assessorDetail.getId())) { result.add(assessorDetail); } } } return result; } }