uploadMultiFile1_uploadMultipleFile1.java

package info.intix.samples;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;

import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.PortletException;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;

import com.liferay.portal.kernel.upload.UploadPortletRequest;
import com.liferay.portal.kernel.util.FileUtil;
import com.liferay.portal.kernel.util.MimeTypesUtil;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.kernel.util.Validator;
import com.liferay.portal.service.ServiceContext;
import com.liferay.portal.service.ServiceContextFactory;
import com.liferay.portal.theme.ThemeDisplay;
import com.liferay.portal.util.PortalUtil;
import com.liferay.portlet.documentlibrary.model.DLFileEntry;
import com.liferay.portlet.documentlibrary.model.DLFileEntryTypeConstants;
import com.liferay.portlet.documentlibrary.model.DLFolder;
import com.liferay.portlet.documentlibrary.service.DLFileEntryServiceUtil;
import com.liferay.portlet.documentlibrary.service.DLFolderLocalServiceUtil;
import com.liferay.portlet.dynamicdatamapping.storage.Fields;

public class uploadMultipleFile1 extends DefaultPortlet {

    @Override
    public void doView(RenderRequest renderRequest, RenderResponse renderResponse) throws IOException, PortletException {
        _log.info("---> doView()");
        super.doView(renderRequest, renderResponse);
    }

    public void uploadMultipleFilesActionMethod (ActionRequest request, ActionResponse response) throws PortletException, IOException {
        _log.info("---> uploadMultipleFilesActionMethod() - *begin* -");
        UploadPortletRequest uploadRequest = PortalUtil.getUploadPortletRequest(request);
        File tempFile;

        Map<String, File> fileMap = new LinkedHashMap<String, File>();
        Enumeration<String> paramEnum = uploadRequest.getParameterNames();

        while (paramEnum.hasMoreElements()) {
            String parameter = paramEnum.nextElement();
            if (parameter.startsWith("uploadFileField")) {
                tempFile = uploadRequest.getFile(parameter);
                tempFile = renameFileName(tempFile, uploadRequest, parameter);
                if (tempFile != null) {
                    fileMap.put(parameter, tempFile);
                }
            }
        }
        for (Map.Entry<String, File> entry : fileMap.entrySet()) {
            singleFileUpload(request, response, entry.getValue());
        }
    }

    public File renameFileName (File sourceFile, UploadPortletRequest uploadRequest, String paramName) throws IOException {
        _log.info("---> renameFileName() - *begin* -");
        File destination = null;
        String path = sourceFile.getPath();
        path = path.substring(0, path.lastIndexOf(StringPool.BACK_SLASH) + 1);
        String fileNm = uploadRequest.getFileName(paramName);

        if (Validator.isNotNull(fileNm)) {
            path = path.concat(fileNm);
            destination = new File(path);
            FileUtil.copyFile(sourceFile, destination);
            _log.info("---> renameFileName(): copyFile " + sourceFile.getPath() + ">" + sourceFile.getName() + " To " + destination.getPath() + ">" + destination.getName());
            FileUtil.delete(sourceFile);
            _log.info("---> renameFileName(): deleteFile " + sourceFile.getPath() + ">" + sourceFile.getName());
        }
        return destination;
    }

    public void singleFileUpload (ActionRequest actionRequest, ActionResponse actionResponse, File file) {
        _log.info("---> singleFileUpload() - *begin* -");
        ThemeDisplay _themeDisplay = getThemeDisplay(actionRequest);
        DLFileEntry fileEntry = null;
        String strPrefixFileName = "tmp";
        String strFolderName = "TestFolder";
        String title = strPrefixFileName + StringPool.UNDERLINE + file.getName();
        String strTimeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(Calendar.getInstance().getTime());
        long groupId = _themeDisplay.getScopeGroupId();
        try {
            DLFolder dlFolder = DLFolderLocalServiceUtil.getFolder(groupId, 0, strFolderName);
            ServiceContext serviceContext = ServiceContextFactory.getInstance(DLFileEntry.class.getName(), actionRequest);

            long repositoryId = dlFolder.getRepositoryId();
            String mimeType =  MimeTypesUtil.getContentType(file); // "image/jpeg";
            String description = "Subido por @Chilcano ";
            String changeLog = "Subido el " + strTimeStamp;
            long fileEntryTypeId = DLFileEntryTypeConstants.FILE_ENTRY_TYPE_ID_BASIC_DOCUMENT;
            Map<String, Fields> fieldsMap = new HashMap<String, Fields>();
            FileInputStream is = new FileInputStream(file);
            long size = file.length();

            fileEntry = DLFileEntryServiceUtil.addFileEntry(
                    groupId,
                    repositoryId,
                    dlFolder.getFolderId(),
                    file.getName(),
                    mimeType,
                    title,
                    description,
                    changeLog,
                    fileEntryTypeId,
                    fieldsMap,
                    file,
                    is,
                    size,
                    serviceContext);
            _log.info("---> File uploaded to DL successfully! -> folder: " + dlFolder.getPath() + ", file: " + file.getName());
        }  catch (com.liferay.portlet.documentlibrary.DuplicateFileException dfe) {
            _log.info("---> File already was uploaded days ago! -> folder: " + strFolderName + ", file: " + file.getName());
        } catch (Exception e) {
            _log.error("---> Error while adding file : " + e.getMessage());
            e.printStackTrace();
        }
    }
}