org.fao.geonet.services.logo.Set.java Source code

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Here is the source code for org.fao.geonet.services.logo.Set.java

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//=============================================================================
//===   Copyright (C) 2010 Food and Agriculture Organization of the
//===   United Nations (FAO-UN), United Nations World Food Programme (WFP)
//===   and United Nations Environment Programme (UNEP)
//===
//===   This program 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 2 of the License, or (at
//===   your option) any later version.
//===
//===   This program 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 this program; if not, write to the Free Software
//===   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
//===
//===   Contact: Jeroen Ticheler - FAO - Viale delle Terme di Caracalla 2,
//===   Rome - Italy. email: geonetwork@osgeo.org
//==============================================================================

package org.fao.geonet.services.logo;

import jeeves.interfaces.Service;
import jeeves.server.ServiceConfig;
import jeeves.server.context.ServiceContext;

import org.apache.commons.lang.StringUtils;
import org.fao.geonet.Util;
import org.fao.geonet.constants.Params;
import org.fao.geonet.exceptions.BadParameterEx;
import org.fao.geonet.kernel.setting.SettingManager;
import org.fao.geonet.resources.Resources;
import org.fao.geonet.utils.FilePathChecker;
import org.fao.geonet.utils.IO;
import org.jdom.Element;

import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.file.Files;
import java.nio.file.Path;

import javax.imageio.ImageIO;

/**
 * Set the logo of the current node.
 *
 * @author francois
 */
@Deprecated
public class Set implements Service {
    public void init(Path appPath, ServiceConfig params) throws Exception {
    }

    public Element exec(Element params, ServiceContext context) throws Exception {

        Path harvestingLogoDirectory = Resources.locateHarvesterLogosDir(context);
        Path nodeLogoDirectory = Resources.locateLogosDir(context);

        String file = Util.getParam(params, Params.FNAME);
        String asFavicon = Util.getParam(params, Params.FAVICON, "0");

        FilePathChecker.verify(file);

        if (StringUtils.isEmpty(file)) {
            throw new Exception("Logo name is not defined.");
        }

        SettingManager settingMan = context.getBean(SettingManager.class);
        String nodeUuid = settingMan.getSiteId();

        try {
            Path logoFilePath = harvestingLogoDirectory.resolve(file);
            if (!Files.exists(logoFilePath)) {
                logoFilePath = context.getAppPath().resolve("images/harvesting/" + file);
            }
            try (InputStream inputStream = Files.newInputStream(logoFilePath)) {
                BufferedImage source = ImageIO.read(inputStream);

                if ("1".equals(asFavicon)) {
                    createFavicon(source, nodeLogoDirectory.resolve("favicon.png"));
                } else {
                    Path logo = nodeLogoDirectory.resolve(nodeUuid + ".png");
                    Path defaultLogo = nodeLogoDirectory.resolve("logo.png");

                    if (!file.endsWith(".png")) {
                        try (OutputStream logoOut = Files.newOutputStream(logo);
                                OutputStream defLogoOut = Files.newOutputStream(defaultLogo);) {
                            ImageIO.write(source, "png", logoOut);
                            ImageIO.write(source, "png", defLogoOut);
                        }
                    } else {
                        Files.deleteIfExists(logo);
                        IO.copyDirectoryOrFile(logoFilePath, logo, false);
                        Files.deleteIfExists(defaultLogo);
                        IO.copyDirectoryOrFile(logoFilePath, defaultLogo, false);
                    }
                }
            }
        } catch (Exception e) {
            throw new Exception(
                    "Unable to move uploaded thumbnail to destination directory. Error: " + e.getMessage());
        }

        Element response = new Element("response");
        response.addContent(new Element("status").setText("Logo set."));
        return response;
    }

    private void createFavicon(Image img, Path outFile) throws IOException {
        int width = 32;
        int height = 32;
        String type = "png";

        Image thumb = img.getScaledInstance(width, height, BufferedImage.SCALE_SMOOTH);

        BufferedImage bimg = new BufferedImage(width, height, BufferedImage.TRANSLUCENT);

        Graphics2D g = bimg.createGraphics();
        g.drawImage(thumb, 0, 0, null);
        g.dispose();

        try (OutputStream out = Files.newOutputStream(outFile)) {
            ImageIO.write(bimg, type, out);
        }
    }
}