EditMediaFileBean.java

/* MyMAM - Open Source Digital Media Asset Management.
 * http://www.mymam.net
 *
 * Copyright 2013, MyMAM contributors as indicated by the @author tag.
 *
 * 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 net.mymam.controller;

import net.mymam.data.json.MediaFileImportStatus;
import net.mymam.ejb.MediaFileEJB;
import net.mymam.entity.Access;
import net.mymam.entity.MediaFile;
import net.mymam.entity.MediaFileThumbnailData;
import net.mymam.entity.MediaFileUserProvidedMetaData;
import net.mymam.exceptions.NotFoundException;

import javax.annotation.PostConstruct;
import javax.ejb.EJB;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ViewScoped;
import javax.faces.context.FacesContext;
import javax.faces.event.ComponentSystemEvent;
import javax.servlet.ServletContext;
import java.io.IOException;
import java.util.Date;

/**
 * @author fstab
 */
@ManagedBean
@ViewScoped
public class EditMediaFileBean {

    private Long videoId;
    private MediaFile mediaFile;
    private MediaFileUserProvidedMetaData metaData;
    private String fileServletPath;
    private Long thumbnailOffsetMs;

    @EJB
    private MediaFileEJB mediaFileEJB;

    @PostConstruct
    public void postConstruct() {
        ServletContext servletContext = (ServletContext) FacesContext.getCurrentInstance().getExternalContext().getContext();
        this.fileServletPath = servletContext.getContextPath() + "/static";
    }

    public Long getVideoId() {
        return videoId;
    }

    public void setVideoId(Long videoId) {
        this.videoId = videoId;
    }

    // listener for the pre-render-view event
    public void loadFile(ComponentSystemEvent event) {
        // TODO: The post-back check will become unnecessary in JSF 2.2,
        // when the <f:viewAction action="#{editMediaFileBean.loadFile}" onPostback="false" />
        // is introduced.
        if (!FacesContext.getCurrentInstance().isPostback()) {
            this.mediaFile = mediaFileEJB.findById(videoId);
            if ( mediaFile.getUserProvidedMetadata() != null ) {
                this.metaData = mediaFile.getUserProvidedMetadata();
            } else {
                this.metaData = new MediaFileUserProvidedMetaData();
            }
            this.thumbnailOffsetMs = mediaFile.getThumbnailData().getThumbnailOffsetMs();
        }
    }

    public Date getCreationDate() {
        return mediaFile.getCreationDate();
    }

    public String getOrigFile() {
        return mediaFile.getOrigFile();
    }

    public MediaFileUserProvidedMetaData getMetaData() {
        return metaData;
    }

    public String getLowResMp4Url() {
        return fileServletPath + "/lowres/mp4/" + getVideoId();
    }

    public String getLowResWebmUrl() {
        return fileServletPath + "/lowres/webm/" + getVideoId();
    }

    public Access getAccess() {
        return mediaFile.getAccess();
    }

    public void setAccess(Access access) {
        mediaFile.setAccess(access);
    }

    public Long getThumbnailOffsetMs() {
        return thumbnailOffsetMs;
    }

    public void setThumbnailOffsetMs(Long thumbnailOffsetMs) {
        this.thumbnailOffsetMs = thumbnailOffsetMs;
    }

    public void submit() throws NotFoundException, IOException {
        mediaFileEJB.updateAccessAndMetaData(mediaFile, mediaFile.getAccess(), metaData);
        if ( ! mediaFile.getThumbnailData().getThumbnailOffsetMs().equals(thumbnailOffsetMs) ) {
            mediaFileEJB.scheduleGenerateThumbnailsTask(mediaFile.getId(), thumbnailOffsetMs);
        }
        FacesContext.getCurrentInstance().getExternalContext().redirect("dashboard.xhtml");
    }
}