SigExporter.java

// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.plugins.trustosm.io;

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

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

import javax.swing.JOptionPane;

import org.openstreetmap.josm.Main;
import org.openstreetmap.josm.actions.ExtensionFileFilter;
import org.openstreetmap.josm.gui.layer.Layer;
import org.openstreetmap.josm.io.FileExporter;
import org.openstreetmap.josm.plugins.trustosm.TrustOSMplugin;
import org.openstreetmap.josm.tools.CheckParameterUtil;

public class SigExporter extends FileExporter {

    public SigExporter(ExtensionFileFilter filter) {
        super(filter);
        // TODO Auto-generated constructor stub
    }

    public SigExporter() {
        super(new ExtensionFileFilter("txml,xml", "txml", tr("Signature Files") + " (*.txml *.xml)"));
    }

    @Override
    public void exportData(File file, Layer layer) throws IOException {
        CheckParameterUtil.ensureParameterNotNull(file, "file");

        String fn = file.getPath();
        if (fn.indexOf('.') == -1) {
            fn += ".tosm";
            file = new File(fn);
        }
        try (FileOutputStream fo = new FileOutputStream(file)) {
            new SigWriter(fo).write(TrustOSMplugin.signedItems.values());
            fo.flush();
        } catch (IOException x) {
            x.printStackTrace();
            JOptionPane.showMessageDialog(Main.parent, tr("Error while exporting {0}:\n{1}", fn, x.getMessage()),
                    tr("Error"), JOptionPane.ERROR_MESSAGE);
        }
    }

}