EditIssueController.java

/*
 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.issue;

import no.dusken.aranea.admin.control.GenericEditController;
import no.dusken.aranea.admin.editor.CalendarEditor;
import no.dusken.aranea.model.Image;
import no.dusken.aranea.model.Issue;
import no.dusken.aranea.service.StoreImageService;
import no.dusken.aranea.util.ImageUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Required;
import org.springframework.validation.BindException;
import org.springframework.web.bind.ServletRequestDataBinder;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
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.io.File;
import java.util.Calendar;

public class EditIssueController extends GenericEditController<Issue> {

    private CalendarEditor timeEditor;

    private ImageUtils imageUtils;

    private String pdfDirectory;

    private StoreImageService storeImageService;

    private IssueIndexer issueIndexer;

    public EditIssueController() {
        super(Issue.class);
    }

    @Override
    protected ModelAndView onSubmit(HttpServletRequest request, HttpServletResponse response, Object o,
                                    BindException e) throws Exception {
        Issue issue = (Issue) o;

        MultipartHttpServletRequest mrequest = (MultipartHttpServletRequest) request;
        MultipartFile file = mrequest.getFile("file");
        if (file != null && !file.isEmpty()) {
            issue.setPdfSize(file.getSize());
            String pdfUrl = pdfDirectory + issue.getRelativePdfFilePath();
            // transfer the pdf
            File destFile = new File(pdfUrl);
            destFile.getParentFile().mkdirs();
            file.transferTo(destFile);

            issue.clearPdfPages();
            issueIndexer.tryToIndexIssue(issue);

            try{
                Image image = imageUtils.makeThumbnail(destFile);
                issue.setImage(image);
            }catch (Exception ex){
                log.error("Error when creating pdf image");
            }
        }
        MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
        MultipartFile image = multipartRequest.getFile("img");
        if (image != null && image.getSize() != 0 ) {
            Image i = storeImageService.createImage(image);
            issue.setImage(i);
        }
        return super.onSubmit(request, response, issue, e);
    }

    protected void initBinder(HttpServletRequest request,
                              ServletRequestDataBinder binder) throws Exception {
        super.initBinder(request, binder);
        binder.registerCustomEditor(Calendar.class, timeEditor);
        // 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 setTimeEditor(CalendarEditor timeEditor) {
        this.timeEditor = timeEditor;
    }

    @Required
    public void setImageUtils(ImageUtils imageUtils) {
        this.imageUtils = imageUtils;
    }

    @Required
    public void setPdfDirectory(String pdfDirectory) {
        this.pdfDirectory = pdfDirectory;
    }

    @Autowired
    public void setStoreImageService(StoreImageService storeImageService) {
        this.storeImageService = storeImageService;
    }

    @Autowired
    public void setIssueIndexer(IssueIndexer issueIndexer) {
        this.issueIndexer = issueIndexer;
    }
}