no.dusken.aranea.admin.control.EditPageImageController.java Source code

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Here is the source code for no.dusken.aranea.admin.control.EditPageImageController.java

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/*
 Copyright 2006 - 2010 Under Dusken
    
 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.
 */

package no.dusken.aranea.admin.control;

import no.dusken.aranea.admin.editor.GenericEditor;
import no.dusken.aranea.model.Article;
import no.dusken.aranea.model.Page;
import no.dusken.aranea.model.PageImage;
import no.dusken.aranea.service.PageService;
import org.springframework.beans.factory.annotation.Required;
import org.springframework.validation.BindException;
import org.springframework.validation.Errors;
import org.springframework.web.bind.ServletRequestDataBinder;
import org.springframework.web.bind.ServletRequestUtils;
import org.springframework.web.multipart.support.ByteArrayMultipartFileEditor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.HashMap;
import java.util.Map;

public class EditPageImageController extends GenericEditController<PageImage> {

    private PageService pageService;

    private GenericEditor<Article> articleEditor;

    private PageImageOnSubmit pageImageSubmit;

    public EditPageImageController() {
        super(PageImage.class);
    }

    /**
     * This attaches the page, if pageID is given
     */
    @Override
    protected Object formBackingObject(HttpServletRequest request) {
        PageImage pageImage = (PageImage) super.formBackingObject(request);
        Long pageID = ServletRequestUtils.getLongParameter(request, "pageID", 0);
        Page p = pageService.getEntity(pageID);
        if (p != null && pageImage.getPage() == null) {
            // only when we don't already have an page
            pageImage.setPage(p);
        }
        return pageImage;
    }

    @Override
    protected Map referenceData(HttpServletRequest request, Object object, Errors errors) {
        Map<String, Object> map = new HashMap<String, Object>();
        map.put("persons", personService.getPersonsByFirstname(false));
        return map;
    }

    @Override
    protected ModelAndView onSubmit(HttpServletRequest request, HttpServletResponse response, Object object,
            BindException errors) throws Exception {
        PageImage pageImage = pageImageSubmit.handlePageImageSubmit((PageImage) object, request);

        //assume that if pageID is present, we came from a editXXX page,
        // so redirecting back instead of to the pageImage page.
        if (request.getParameter("pageID") != null) {
            //TODO this seems a bit hardcoded, is there a better way?
            Long pageID = ServletRequestUtils.getLongParameter(request, "pageID", 0);
            Page p = pageService.getEntity(pageID);
            // redirect to the same form
            StringBuffer url = new StringBuffer();
            url.append("/admin/edit");
            url.append(p.getClass().getSimpleName());
            url.append(".do?ID=");
            url.append(pageID);
            request.setAttribute("no.dusken.aranea.customGenericEditRedirect", url.toString());
        }
        return super.onSubmit(request, response, pageImage, errors);
    }

    protected void initBinder(HttpServletRequest request, ServletRequestDataBinder binder) throws Exception {
        super.initBinder(request, binder);
        binder.registerCustomEditor(Article.class, articleEditor);
        // to actually be able to convert Multipart instance to byte[]
        // we have to register a custom editor
        binder.registerCustomEditor(byte[].class, new ByteArrayMultipartFileEditor());
        binder.setBindEmptyMultipartFiles(false);
        // now Spring knows how to handle multipart object and convert them
    }

    @Required
    public void setArticleEditor(GenericEditor<Article> articleEditor) {
        this.articleEditor = articleEditor;
    }

    @Required
    public void setPageService(PageService pageService) {
        this.pageService = pageService;
    }

    public void setPageImageSubmit(PageImageOnSubmit pageImageSubmit) {
        this.pageImageSubmit = pageImageSubmit;
    }
}