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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.ui.dialog.selection;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Set;
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import java.util.UUID;
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import org.eclipse.swt.widgets.Shell;
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import eu.etaxonomy.cdm.api.service.IUserService;
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import eu.etaxonomy.cdm.common.CdmUtils;
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import eu.etaxonomy.cdm.model.permission.Group;
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import eu.etaxonomy.cdm.model.permission.User;
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import eu.etaxonomy.cdm.persistence.dto.UuidAndTitleCache;
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import eu.etaxonomy.taxeditor.newWizard.AbstractNewEntityWizard;
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import eu.etaxonomy.taxeditor.newWizard.NewUserWizard;
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import eu.etaxonomy.taxeditor.store.CdmStore;
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/**
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 * @author n.hoffmann
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 * @created Mar 10, 2011
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 * @version 1.0
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 */
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public class UserSelectionDialog extends
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		AbstractFilteredCdmResourceSelectionDialog<User> {
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    Group group;
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    Set<User> groupMembers;
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	/**
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	 *
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	 * @param shell
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	 * @param conversation
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	 * @param user
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	 * @return
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	 */
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	public static User select(Shell shell, //ConversationHolder conversation,
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	        User user, Group group){
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		UserSelectionDialog dialog = new UserSelectionDialog(shell, //conversation,
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				"Choose User", false, UserSelectionDialog.class.getCanonicalName(), user, group);
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		return getSelectionFromDialog(dialog);
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	}
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	/**
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	 * @param shell
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	 * @param conversation
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	 * @param title
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	 * @param multi
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	 * @param settings
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	 * @param cdmObject
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	 */
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	protected UserSelectionDialog(Shell shell, //ConversationHolder conversation,
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			String title, boolean multi, String settings, User cdmObject, Group group) {
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		super(shell, //conversation,
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		        title, multi, settings, cdmObject);
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		this.group = group;
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		groupMembers = group.getMembers();
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	}
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	/* (non-Javadoc)
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	 * @see eu.etaxonomy.taxeditor.ui.dialogs.filteredSelection.AbstractFilteredCdmResourceSelectionDialog#search
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	 */
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	@Override
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	protected void callService(String pattern) {
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		List<User> users = CdmStore.getService(IUserService.class).list(User.class, null, null, null, null);
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		model = new ArrayList<UuidAndTitleCache<User>>();
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		for(User user : users){
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		    if (pattern == null || user.getUsername().matches(CdmUtils.quoteRegExWithWildcard(pattern) + ".*")) {
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		        if (groupMembers != null && !groupMembers.isEmpty() && groupMembers.contains(user)){
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		           continue;
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		        }
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                model.add(new UuidAndTitleCache<User>(User.class, user.getUuid(), user.getId(), String.format("%s, %s", user.getUsername(), user.getPerson())));
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            }
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		}
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	}
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	/* (non-Javadoc)
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	 * @see eu.etaxonomy.taxeditor.ui.dialogs.filteredSelection.AbstractFilteredCdmResourceSelectionDialog#getNewWizardLinkText()
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	 */
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	@Override
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	protected String[] getNewWizardText() {
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		return null;
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	}
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	/* (non-Javadoc)
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	 * @see eu.etaxonomy.taxeditor.ui.dialogs.filteredSelection.AbstractFilteredCdmResourceSelectionDialog#getNewEntityWizard(java.lang.String)
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	 */
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	@Override
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	protected AbstractNewEntityWizard getNewEntityWizard(String parameter) {
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		return new NewUserWizard();
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	}
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	/* (non-Javadoc)
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	 * @see eu.etaxonomy.taxeditor.ui.dialogs.filteredSelection.AbstractFilteredCdmResourceSelectionDialog#getPersistentObject(java.util.UUID)
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	 */
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	@Override
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	protected User getPersistentObject(UUID uuid) {
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		return CdmStore.getService(IUserService.class).load(uuid);
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	}
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	@Override
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	protected String getTitle(User user) {
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		return user != null ? user.getUsername() : "";
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	}
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}
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