au.org.theark.core.web.StudyHelper.java Source code

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Here is the source code for au.org.theark.core.web.StudyHelper.java

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/*******************************************************************************
 * Copyright (c) 2011  University of Western Australia. All rights reserved.
 * 
 * This file is part of The Ark.
 * 
 * The Ark is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) any later version.
 * 
 * The Ark 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/
package au.org.theark.core.web;

import java.io.Serializable;
import java.sql.Blob;

import org.apache.shiro.SecurityUtils;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.markup.html.WebMarkupContainer;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.image.ContextImage;
import org.apache.wicket.markup.html.image.Image;
import org.apache.wicket.markup.html.image.resource.BlobImageResource;
import org.apache.wicket.model.Model;

import au.org.theark.core.model.study.entity.Study;
import au.org.theark.core.service.IArkCommonService;

public class StudyHelper implements Serializable {

    private static final long serialVersionUID = 8485137084667518625L;
    //   private Image                  studyLogoImage;
    private ContextImage noStudyLogoImage;
    private Label studyNameLabel = null;
    private Label studyLabel = null;

    private IArkCommonService<Void> iArkCommonService;

    public void setStudyLogo(Study study, AjaxRequestTarget target, WebMarkupContainer studyNameMarkup,
            WebMarkupContainer studyLogoMarkup, IArkCommonService<Void> iArkCommonService) {
        this.iArkCommonService = iArkCommonService;
        // Set the study logo
        Long sessionStudyId = (Long) SecurityUtils.getSubject().getSession()
                .getAttribute(au.org.theark.core.Constants.STUDY_CONTEXT_ID);
        if (sessionStudyId != null && (study.getStudyLogoFileId() != null || study.getStudyLogoBlob() != null)) {

            setStudyLogoImage(study, "studyLogoImage", studyLogoMarkup);
            studyNameMarkup.setVisible(false);
            studyLogoMarkup.setVisible(true);
        } else {
            // Only show study name, no logo
            studyNameLabel = new Label("studyNameLabel", new Model<String>(study.getName()));
            studyNameMarkup.replace(studyNameLabel);
            studyNameMarkup.setVisible(true);
            studyLogoMarkup.setVisible(false);
        }

        target.add(studyNameMarkup);
        target.add(studyLogoMarkup);
    }

    private void setStudyLogoImage(final Study study, String id, WebMarkupContainer studyLogoImageContainer) {
        // Set the study logo
        if (study != null && (study.getStudyLogoFileId() != null || study.getStudyLogoBlob() != null)) {
            byte[] studyLogo = null;

            if (study.getStudyLogoFileId() != null) {
                try {
                    studyLogo = iArkCommonService.retriveArkFileAttachmentByteArray(study.getId(), null,
                            au.org.theark.core.Constants.ARK_STUDY_DIR, study.getStudyLogoFileId(),
                            study.getStudyLogoChecksum());
                } catch (Exception e) {
                    e.printStackTrace();
                }

            } else if (study.getStudyLogoBlob() != null) {
                studyLogo = study.getStudyLogoBlob();
            }

            final byte[] studyLogoBlob = studyLogo;

            if (studyLogoBlob != null) {
                BlobImageResource blobImageResource = new BlobImageResource() {
                    private static final long serialVersionUID = 1L;

                    @Override
                    protected Blob getBlob() {
                        Blob blob = null;
                        try {
                            blob = new javax.sql.rowset.serial.SerialBlob(studyLogoBlob);
                        } catch (Exception e) {
                            e.printStackTrace();
                        }
                        return blob;
                    }

                };

                Image studyLogoImage = new Image(id, blobImageResource);
                studyLogoImageContainer.addOrReplace(studyLogoImage);
            }
        } else {
            noStudyLogoImage = new ContextImage("study.studyLogoImage",
                    new Model<String>("images/no_study_logo.gif"));
            studyLogoImageContainer.addOrReplace(noStudyLogoImage);
        }
    }

    public void setStudyContextLabel(AjaxRequestTarget target, String studyName,
            WebMarkupContainer arkContextMarkup) {
        studyLabel = new Label("studyLabel", new Model<String>("Study: " + studyName));
        arkContextMarkup.addOrReplace(studyLabel);
        target.add(arkContextMarkup);
    }
}