OpenLinkAction.java

//    JOSM tag2link plugin.
//    Copyright (C) 2011-2012 Don-vip & FrViPofm
//
//    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 3 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, see <http://www.gnu.org/licenses/>.
package org.openstreetmap.josm.plugins.tag2link.action;

import static org.openstreetmap.josm.tools.I18n.tr;

import java.awt.event.ActionEvent;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;

import org.openstreetmap.josm.Main;
import org.openstreetmap.josm.actions.JosmAction;
import org.openstreetmap.josm.plugins.tag2link.Tag2LinkConstants;
import org.openstreetmap.josm.plugins.tag2link.data.Link;
import org.openstreetmap.josm.plugins.tag2link.data.LinkPost;
import org.openstreetmap.josm.tools.HttpClient;
import org.openstreetmap.josm.tools.OpenBrowser;

/**
 * Action allowing to open a general link.
 * @author Don-vip
 */
@SuppressWarnings("serial")
public class OpenLinkAction extends JosmAction implements Tag2LinkConstants {

    private Link link;
    
    /**
     * Constructs a new {@code OpenLinkAction}.
     * @param link The link to open
     */
    public OpenLinkAction(Link link) {
        super(link.name, ICON_24, tr("Launch browser with information about the selected object"), null, false);
        this.link = link;
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        if (link instanceof LinkPost) {
            try {
                LinkPost lp = (LinkPost) link;
                String data = "";
                for (String param : lp.params.keySet()) {
                    if (!data.isEmpty()) {
                        data += "&";
                    }
                    data += param+"="+lp.params.get(param);
                }
                
                String filename = "output.pdf";// FIXME: should work for PDF files only (not even tested)
                try (InputStream is = HttpClient.create(new URL(lp.url), "POST").setHeaders(lp.headers)
                        .setRequestBody(data.getBytes(StandardCharsets.UTF_8)).connect().getContent()) {
                    Files.copy(is, new File(filename).toPath());
                }
                
                Main.info("Opening "+filename);
                String result = OpenBrowser.displayUrl("file://"+filename);
                if (result != null) {
                    Main.error(result);
                }
            } catch (IOException ex) {
                Main.error(ex);
            }
        } else {
            Main.info("Opening "+link.url);
            String result = OpenBrowser.displayUrl(link.url);
            if (result != null) {
                Main.error(result);
            }
        }
    }
}