DocumentAttachementsPageModContentFactoryImpl.java

/*
 * Copyright 2010-2025 James Pether Sörling
 *
 * 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.
 *
 *  $Id$
 *  $HeadURL$
*/
package com.hack23.cia.web.impl.ui.application.views.user.document.pagemode;

import java.util.List;

import org.springframework.security.access.annotation.Secured;
import org.springframework.stereotype.Component;

import com.hack23.cia.model.external.riksdagen.dokumentstatus.impl.DocumentAttachment;
import com.hack23.cia.model.external.riksdagen.dokumentstatus.impl.DocumentData;
import com.hack23.cia.model.external.riksdagen.dokumentstatus.impl.DocumentData_;
import com.hack23.cia.model.external.riksdagen.dokumentstatus.impl.DocumentStatusContainer;
import com.hack23.cia.model.external.riksdagen.dokumentstatus.impl.DocumentStatusContainer_;
import com.hack23.cia.model.internal.application.system.impl.ApplicationEventGroup;
import com.hack23.cia.service.api.DataContainer;
import com.hack23.cia.web.impl.ui.application.action.ViewAction;
import com.hack23.cia.web.impl.ui.application.views.common.menufactory.api.pagecommands.PageCommandDocumentConstants;
import com.hack23.cia.web.impl.ui.application.views.common.pagelinks.impl.ExternalAttachmentDownloadLink;
import com.hack23.cia.web.impl.ui.application.views.common.pagelinks.impl.StreamSourceImplementation;
import com.hack23.cia.web.impl.ui.application.views.common.pagemode.CardInfoRowUtil;
import com.hack23.cia.web.impl.ui.application.views.common.sizing.ContentRatio;
import com.vaadin.server.StreamResource;
import com.vaadin.ui.Layout;
import com.vaadin.ui.MenuBar;
import com.vaadin.ui.Panel;
import com.vaadin.ui.VerticalLayout;
import com.whitestein.vaadin.widgets.wtpdfviewer.WTPdfViewer;

/**
 * The Class DocumentAttachementsPageModContentFactoryImpl.
 */
@Component
public final class DocumentAttachementsPageModContentFactoryImpl extends AbstractDocumentPageModContentFactoryImpl {

    /** The Constant COLUMN_ORDER. */
    private static final String[] COLUMN_ORDER = { "fileName", "fileSize", "fileType", "fileUrl" };

    /** The Constant DOCUMENT_ATTACHMENTS. */
    private static final String DOCUMENT_ATTACHMENTS = "Document Attachments";

    /** The Constant HIDE_COLUMNS. */
    private static final String[] HIDE_COLUMNS = { "hjid" };

    /** The Constant PDF. */
    private static final String PDF = "pdf";

    /**
     * Instantiates a new document attachements page mod content factory impl.
     */
    public DocumentAttachementsPageModContentFactoryImpl() {
        super();
    }

    /**
     * Display document attachements.
     *
     * @param panelContent the panel content
     * @param documentAttachmentList the document attachment list
     */
    private static void displayDocumentAttachements(final VerticalLayout panelContent,
            final List<DocumentAttachment> documentAttachmentList) {
        for (final DocumentAttachment documentAttachment : documentAttachmentList) {

            if (PDF.equalsIgnoreCase(documentAttachment.getFileType())) {
                final WTPdfViewer wtPdfViewer = new WTPdfViewer();
                wtPdfViewer.setSizeFull();

                wtPdfViewer.setResource(new StreamResource(new StreamSourceImplementation(documentAttachment.getFileUrl()), documentAttachment.getFileName()));

                panelContent.addComponent(wtPdfViewer);
                panelContent.setExpandRatio(wtPdfViewer, ContentRatio.LARGE);
            } else {
                final VerticalLayout verticalLayout = new VerticalLayout();
                panelContent.addComponent(verticalLayout);
                panelContent.setExpandRatio(verticalLayout, ContentRatio.SMALL);
                final ExternalAttachmentDownloadLink link = new ExternalAttachmentDownloadLink(
                        documentAttachment.getFileName(), documentAttachment.getFileType(),
                        documentAttachment.getFileUrl());
                verticalLayout.addComponent(link);
            }
        }
    }

    @Secured({ "ROLE_ANONYMOUS", "ROLE_USER", "ROLE_ADMIN" })
    @Override
    public Layout createContent(final String parameters, final MenuBar menuBar, final Panel panel) {
        final VerticalLayout panelContent = createPanelContent();

        final String pageId = getPageId(parameters);

        getDocumentMenuItemFactory().createDocumentMenuBar(menuBar, pageId);

        final DataContainer<DocumentStatusContainer, String> documentStatusContainerDataContainer = getApplicationManager()
                .getDataContainer(DocumentStatusContainer.class);

        final DocumentStatusContainer documentStatusContainer = documentStatusContainerDataContainer
                .findByQueryProperty(DocumentStatusContainer.class, DocumentStatusContainer_.document,
                        DocumentData.class, DocumentData_.id, pageId);

        CardInfoRowUtil.createPageHeader(panel, panelContent,
            DocumentViewConstants.ATTACHMENTS_TITLE,
            DocumentViewConstants.ATTACHMENTS_SUBTITLE,
            DocumentViewConstants.ATTACHMENTS_DESC);

        if (documentStatusContainer != null && documentStatusContainer.getDocumentAttachmentContainer() != null
                && documentStatusContainer.getDocumentAttachmentContainer().getDocumentAttachmentList() != null) {

            getGridFactory().createBasicBeanItemGrid(panelContent, DocumentAttachment.class,
                    documentStatusContainer.getDocumentAttachmentContainer().getDocumentAttachmentList(),
                    DOCUMENT_ATTACHMENTS, COLUMN_ORDER, HIDE_COLUMNS, null, null, null);

            displayDocumentAttachements(panelContent,
                    documentStatusContainer.getDocumentAttachmentContainer().getDocumentAttachmentList());
        }

        panel.setContent(panelContent);
        getPageActionEventHelper().createPageEvent(ViewAction.VISIT_DOCUMENT_VIEW, ApplicationEventGroup.USER, NAME,
                parameters, pageId);
        return panelContent;

    }

    @Override
    public boolean matches(final String page, final String parameters) {
        return PageCommandDocumentConstants.COMMAND_DOCUMENT_ATTACHMENTS.matches(page, parameters);
    }

}