com.liferay.faces.demos.bean.UsersModelBean.java Source code

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Here is the source code for com.liferay.faces.demos.bean.UsersModelBean.java

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/**
 * Copyright (c) 2000-2015 Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */
package com.liferay.faces.demos.bean;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;

import javax.faces.application.Application;
import javax.faces.application.ViewHandler;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ViewScoped;
import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;
import javax.faces.model.SelectItem;
import javax.portlet.PortletRequest;

import com.liferay.faces.demos.list.UserLazyDataModel;
import com.liferay.faces.demos.resource.UserPortraitResource;
import com.liferay.faces.portal.context.LiferayFacesContext;
import com.liferay.faces.util.model.UploadedFile;

import com.liferay.portal.kernel.dao.search.SearchContainer;
import com.liferay.portal.kernel.util.WebKeys;
import com.liferay.portal.kernel.workflow.WorkflowConstants;
import com.liferay.portal.model.User;
import com.liferay.portal.theme.ThemeDisplay;

/**
 * This class serves as a model bean for the users.xhtml Facelet view. The bean is kept in view scope since the model
 * data needs to be maintained as long as the end-user is interacting with the view.
 *
 * @author  Neil Griffin
 * @author  Kyle Stiemann
 */
@ManagedBean(name = "usersModelBean")
@ViewScoped
public class UsersModelBean implements Serializable {

    // serialVersionUID Note: This class implements Serializable only to avoid extraneous stacktraces from being thrown
    // by Mojarra. All of the private data members are marked as transient, because it's not possible to de-serialize
    // instances of Liferay's User class due to classloader prolems.
    private static final long serialVersionUID = 5267378433060095710L;

    // Private Data Members
    private transient UserLazyDataModel userDataModel;
    private transient User selectedUser;
    private transient List<SelectItem> statusSelectItems;
    private transient UploadedFile uploadedFile;
    private transient String selectedUserPortraitURL;

    public void forceListReload() {

        selectedUser = null;
        selectedUserPortraitURL = null;
        userDataModel = null;
        uploadedFile = null;
    }

    public UserLazyDataModel getDataModel() {

        if (userDataModel == null) {
            LiferayFacesContext liferayFacesContext = LiferayFacesContext.getInstance();
            int rowsPerPage = liferayFacesContext.getPortletPreferenceAsInt("rowsPerPage",
                    SearchContainer.DEFAULT_DELTA);
            userDataModel = new UserLazyDataModel(liferayFacesContext.getCompanyId(), rowsPerPage);
        }

        return userDataModel;
    }

    public User getSelectedUser() {
        return selectedUser;
    }

    public void setSelectedUser(User selectedUser) {
        this.selectedUser = selectedUser;
        this.selectedUserPortraitURL = null;
    }

    /**
     * This method returns a fully encoded URL that can be used in an HTML img tag to display the selected user's
     * portrait. In order to determine the value of the URL, this method delegates much of that responsibility to the
     * {@link UserPortraitResource} class.
     */
    public String getSelectedUserPortraitURL() {

        if (selectedUserPortraitURL == null) {

            String uploadedFileId = null;

            if (uploadedFile != null) {
                uploadedFileId = uploadedFile.getId();
            }

            FacesContext facesContext = FacesContext.getCurrentInstance();
            ExternalContext externalContext = facesContext.getExternalContext();
            PortletRequest portletRequest = (PortletRequest) externalContext.getRequest();
            ThemeDisplay themeDisplay = (ThemeDisplay) portletRequest.getAttribute(WebKeys.THEME_DISPLAY);
            String portalURL = themeDisplay.getPortalURL();
            String imagePath = portalURL + "/image";
            UserPortraitResource userPortraitResource = new UserPortraitResource(imagePath, selectedUser,
                    uploadedFileId);
            String requestPath = userPortraitResource.getRequestPath();
            Application application = facesContext.getApplication();
            ViewHandler viewHandler = application.getViewHandler();
            String resourceURL = viewHandler.getResourceURL(facesContext, requestPath);
            selectedUserPortraitURL = externalContext.encodeResourceURL(resourceURL);
        }

        return selectedUserPortraitURL;
    }

    public List<SelectItem> getStatusSelectItems() {

        if (statusSelectItems == null) {
            LiferayFacesContext liferayFacesContext = LiferayFacesContext.getInstance();
            statusSelectItems = new ArrayList<SelectItem>();
            statusSelectItems.add(
                    new SelectItem(WorkflowConstants.STATUS_ANY, liferayFacesContext.getMessage("any-status")));
            statusSelectItems.add(
                    new SelectItem(WorkflowConstants.STATUS_APPROVED, liferayFacesContext.getMessage("active")));
            statusSelectItems.add(
                    new SelectItem(WorkflowConstants.STATUS_INACTIVE, liferayFacesContext.getMessage("inactive")));
        }

        return statusSelectItems;
    }

    public UploadedFile getUploadedFile() {
        return uploadedFile;
    }

    public void setUploadedFile(UploadedFile uploadedFile) {
        this.uploadedFile = uploadedFile;

        // Force PrimeFaces to re-render the portrait URL.
        selectedUserPortraitURL = null;
    }
}