es.urjc.mctwp.bbeans.research.image.AbstractViewImages.java Source code

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Here is the source code for es.urjc.mctwp.bbeans.research.image.AbstractViewImages.java

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//Copyright 2008, 2009, 2010 Miguel ?ngel Laguna Lobato
//
//This file is part of Multiclinical Trial Web-PACS.
//
//Multiclinical  Trial Web-PACS is free  software: you  can redistribute 
//it and/or modify it under  the terms of the GNU General Public License 
//as published by the Free  Software Foundation, either version 3 of the 
//License, or (at your option) any later version.
//
//Multiclinical  Trial Web-PACS is distributed  in the hope that it will 
//be useful, but WITHOUT ANY WARRANTY; without even the implied warranty 
//of  MERCHANTABILITY or  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU 
//General Public License for more details.
//
//You should have received a copy of the GNU General Public License
//along with Multiclinical Trial Web-PACS.  If not, see 
//<http://www.gnu.org/licenses/>.

package es.urjc.mctwp.bbeans.research.image;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

import javax.faces.event.ActionEvent;

import org.apache.commons.io.FilenameUtils;

import es.urjc.mctwp.bbeans.RequestInvAbstractBean;
import es.urjc.mctwp.image.objects.ThumbNail;
import es.urjc.mctwp.modelo.ImageData;
import es.urjc.mctwp.pacs.DcmDestination;
import es.urjc.mctwp.service.Command;
import es.urjc.mctwp.service.commands.imageCmds.LoadImageData;
import es.urjc.mctwp.service.commands.imageCmds.SendImages;

public class AbstractViewImages extends RequestInvAbstractBean {
    private DcmDestination destination = new DcmDestination();
    private List<ThumbSelectItem> thumbs = null;

    public DcmDestination getDestination() {
        return destination;
    }

    public void setDestination(DcmDestination dest) {
        this.destination = dest;
    }

    public List<ThumbSelectItem> getThumbs() {
        return thumbs;
    }

    public void setThumbs(List<ThumbSelectItem> images) {
        this.thumbs = images;
    }

    /**
     * It retrieve image from ActionEvent and update selected 
     * image into session state and sets list mode to image.
     *  
     * @param event
     */
    public void alUpdateImageSelected(ActionEvent event) {
        getSession().setImage(null);
        ThumbSelectItem tsi = (ThumbSelectItem) selectRowFromEvent(event, ThumbSelectItem.class);

        if (tsi != null) {
            Command cmd = getCommand(LoadImageData.class);
            ((LoadImageData) cmd).setImageId(tsi.getImageId());
            cmd = runCommand(cmd);
            getSession().setImage(((LoadImageData) cmd).getResult());
        }
    }

    /**
     * It sends all selected images to destination
     * @return
     */
    public void sendImages() {
        List<String> images = new ArrayList<String>();

        //Get id's of selected images
        for (ThumbSelectItem tsi : thumbs) {
            if (tsi.getSelected()) {
                images.add(tsi.getThumbId());
            }
        }

        //Send images
        Command cmd = getCommand(SendImages.class);
        ((SendImages) cmd).setDestination(destination);
        ((SendImages) cmd).setImages(images);
        runCommand(cmd);
    }

    /**
     * It prepares a valid thumbnail for JSF from a valid ImageDate. 
     * It writes the thumbnail image into a file contained in the 
     * user session dir.
     * 
     * @param image
     * @return
     * @throws IOException
     * @throws SQLException
     * @throws FileNotFoundException
     */
    protected ThumbSelectItem getThumbnailContent(ImageData image)
            throws IOException, SQLException, FileNotFoundException {
        String base = getSession().getAbsoluteThumbDir();
        String name = image.getImageId() + FilenameUtils.EXTENSION_SEPARATOR_STR + ThumbNail.TBN_EXT;
        int length = image.getThumbnailSize();

        //Create file for thumbnail and get output stream to write it
        File file = new File(FilenameUtils.concat(base, name));
        FileOutputStream fos = new FileOutputStream(file);

        //write thumbnail content into file
        byte[] thContent = new byte[length];
        image.getThumbnailStream().read(thContent, 0, length);
        fos.write(thContent);
        fos.close();

        //Create thumbnail and view layer thumbnail. It is neccesary to
        //reference the thumbnail from a relative path in order to work
        //into view
        base = getSession().getRelativeThumbDir();
        file = new File(FilenameUtils.concat(base, name));
        ThumbNail tn = new ThumbNail();
        tn.setContent(file);
        tn.setId(image.getImageId());

        ThumbSelectItem tsi = new ThumbSelectItem();
        tsi.setThumbId(tn.getId());
        tsi.setPath(tn.getContent().getPath());
        tsi.setImageId(image.getCode());
        return tsi;
    }

    public String accPrepareImagesToDelete() {
        List<Integer> toDelete = null;

        if ((thumbs != null) && (thumbs.size() > 0)) {
            toDelete = new ArrayList<Integer>();
            for (ThumbSelectItem tsi : thumbs) {
                if (tsi.getSelected()) {
                    toDelete.add(tsi.getImageId());
                }
            }
        }

        ImageDeletionBean bean = (ImageDeletionBean) this.getBackBeanReference("imageDeletionBean");
        bean.setToDelete(toDelete);

        return bean.prepareImageDeletion();
    }
}