org.esupportail.portlet.filemanager.portlet.PortletControllerDownloadEvent.java Source code

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Here is the source code for org.esupportail.portlet.filemanager.portlet.PortletControllerDownloadEvent.java

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/**
 * Licensed to EsupPortail under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for
 * additional information regarding copyright ownership.
 *
 * EsupPortail licenses this file to you 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 org.esupportail.portlet.filemanager.portlet;

import java.io.InputStream;

import javax.portlet.Event;
import javax.portlet.EventRequest;
import javax.portlet.EventResponse;
import javax.portlet.PortletConfig;
import javax.portlet.PortletPreferences;

import org.apache.commons.vfs2.FileContent;
import org.apache.commons.vfs2.FileObject;
import org.apache.commons.vfs2.FileSystemException;
import org.apache.commons.vfs2.FileSystemManager;
import org.apache.commons.vfs2.FileSystemOptions;
import org.apache.commons.vfs2.VFS;
import org.apache.log4j.Logger;
import org.esupportail.portlet.filemanager.EsupFileManagerConstants;
import org.esupportail.portlet.filemanager.api.DownloadRequest;
import org.esupportail.portlet.filemanager.api.DownloadResponse;
import org.esupportail.portlet.filemanager.beans.SharedUserPortletParameters;
import org.esupportail.portlet.filemanager.beans.UploadActionType;
import org.esupportail.portlet.filemanager.services.IServersAccessService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.portlet.bind.annotation.EventMapping;
import org.springframework.web.portlet.context.PortletConfigAware;

@Controller
@Scope("request")
@RequestMapping("VIEW")
public class PortletControllerDownloadEvent implements PortletConfigAware {

    protected Logger log = Logger.getLogger(PortletControllerDownloadEvent.class);

    private PortletConfig portletConfig;

    @Autowired
    protected IServersAccessService serverAccess;

    @Autowired
    protected SharedUserPortletParameters userParameters;

    @Autowired
    protected PortletController portletController;

    public void setPortletConfig(PortletConfig portletConfig) {
        this.portletConfig = portletConfig;
    }

    @EventMapping(EsupFileManagerConstants.DOWNLOAD_REQUEST_QNAME_STRING)
    public void downloadEvent(EventRequest request, EventResponse response) {

        log.info("PortletControllerDownloadEvent.downloadEvent from EsupFilemanager is called");

        // INIT     
        portletController.init(request);

        PortletPreferences prefs = request.getPreferences();
        String[] prefsDefaultPathes = prefs.getValues(PortletController.PREF_DEFAULT_PATH, null);

        boolean showHiddenFiles = "true".equals(prefs.getValue(PortletController.PREF_SHOW_HIDDEN_FILES, "false"));
        userParameters.setShowHiddenFiles(showHiddenFiles);

        UploadActionType uploadOption = UploadActionType.valueOf(prefs
                .getValue(PortletController.PREF_UPLOAD_ACTION_EXIST_FILE, UploadActionType.OVERRIDE.toString()));
        userParameters.setUploadOption(uploadOption);

        serverAccess.initializeServices(userParameters);

        // DefaultPath
        String defaultPath = serverAccess.getFirstAvailablePath(userParameters, prefsDefaultPathes);

        // Event   
        final Event event = request.getEvent();
        final DownloadRequest downloadRequest = (DownloadRequest) event.getValue();

        String fileUrl = downloadRequest.getUrl();

        // FS     
        boolean success = false;
        try {
            FileSystemManager fsManager = VFS.getManager();

            FileSystemOptions fsOptions = new FileSystemOptions();

            FileObject file = fsManager.resolveFile(fileUrl, fsOptions);
            FileContent fc = file.getContent();
            String baseName = fc.getFile().getName().getBaseName();
            InputStream inputStream = fc.getInputStream();

            success = serverAccess.putFile(defaultPath, baseName, inputStream, userParameters,
                    userParameters.getUploadOption());
        } catch (FileSystemException e) {
            log.error("putFile failed for this downloadEvent", e);
        }

        //Build the result object
        final DownloadResponse downloadResponse = new DownloadResponse();
        if (success)
            downloadResponse.setSummary("Upload OK");
        else
            downloadResponse.setSummary("Upload Failed");

        //Add the result to the results and send the event
        response.setEvent(EsupFileManagerConstants.DOWNLOAD_RESPONSE_QNAME, downloadResponse);

    }

}