1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.io;
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3 |
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4 | import java.io.File;
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5 | import java.io.FileOutputStream;
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6 | import java.io.IOException;
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7 | import java.io.ObjectOutputStream;
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8 |
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9 | import org.openstreetmap.josm.Main;
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10 | import org.openstreetmap.josm.data.Preferences;
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11 | import org.openstreetmap.josm.data.imagery.ImageryInfo.ImageryPreferenceEntry;
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12 | import org.openstreetmap.josm.gui.layer.AbstractTileSourceLayer;
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13 | import org.openstreetmap.josm.gui.layer.Layer;
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14 | import org.openstreetmap.josm.tools.CheckParameterUtil;
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15 |
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16 | /**
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17 | * Export a WMS layer to a serialized binary file that can be imported later via {@link WMSLayerImporter}.
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18 | *
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19 | * @since 5457
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20 | */
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21 | public class WMSLayerExporter extends FileExporter {
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22 |
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23 | /** Which version of the file we export */
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24 | public static final int CURRENT_FILE_VERSION = 6;
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25 |
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26 | /**
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27 | * Constructs a new {@code WMSLayerExporter}
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28 | */
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29 | public WMSLayerExporter() {
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30 | super(WMSLayerImporter.FILE_FILTER);
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31 | }
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32 |
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33 | @Override
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34 | public void exportData(File file, Layer layer) throws IOException {
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35 | CheckParameterUtil.ensureParameterNotNull(file, "file");
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36 | CheckParameterUtil.ensureParameterNotNull(layer, "layer");
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37 |
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38 | if (layer instanceof AbstractTileSourceLayer) {
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39 | try (ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(file))) {
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40 | oos.writeInt(CURRENT_FILE_VERSION); // file version
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41 | oos.writeObject(Main.map.mapView.getCenter());
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42 | ImageryPreferenceEntry entry = new ImageryPreferenceEntry(((AbstractTileSourceLayer) layer).getInfo());
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43 | oos.writeObject(Preferences.serializeStruct(entry, ImageryPreferenceEntry.class));
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44 | }
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45 | }
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46 |
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47 | }
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48 |
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49 | @Override
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50 | public void activeLayerChange(Layer oldLayer, Layer newLayer) {
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51 | setEnabled(newLayer instanceof AbstractTileSourceLayer);
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52 | }
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53 | }
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