001 // License: GPL. For details, see LICENSE file. 002 package org.openstreetmap.josm.io.session; 003 004 import static org.openstreetmap.josm.tools.I18n.tr; 005 006 import java.io.IOException; 007 import java.util.HashMap; 008 import java.util.Map; 009 010 import org.openstreetmap.josm.data.Preferences; 011 import org.openstreetmap.josm.data.imagery.ImageryInfo; 012 import org.openstreetmap.josm.data.imagery.ImageryInfo.ImageryPreferenceEntry; 013 import org.openstreetmap.josm.gui.layer.ImageryLayer; 014 import org.openstreetmap.josm.gui.layer.Layer; 015 import org.openstreetmap.josm.gui.progress.ProgressMonitor; 016 import org.openstreetmap.josm.io.IllegalDataException; 017 import org.openstreetmap.josm.io.session.SessionReader.ImportSupport; 018 import org.w3c.dom.Element; 019 import org.w3c.dom.Node; 020 import org.w3c.dom.NodeList; 021 022 /** 023 * Session importer for both TMSLayer and WMSLayer. 024 */ 025 public class ImagerySessionImporter implements SessionLayerImporter { 026 027 @Override 028 public Layer load(Element elem, ImportSupport support, ProgressMonitor progressMonitor) throws IOException, IllegalDataException { 029 String version = elem.getAttribute("version"); 030 if (!"0.1".equals(version)) { 031 throw new IllegalDataException(tr("Version ''{0}'' of meta data for imagery layer is not supported. Expected: 0.1", version)); 032 } 033 Map<String, String> attributes = new HashMap<String, String>(); 034 035 NodeList nodes = elem.getChildNodes(); 036 037 for (int i=0; i<nodes.getLength(); ++i) { 038 Node node = nodes.item(i); 039 if (node.getNodeType() == Node.ELEMENT_NODE) { 040 Element e = (Element) node; 041 attributes.put(e.getTagName(), e.getTextContent()); 042 } 043 } 044 ImageryPreferenceEntry prefEntry = Preferences.deserializeStruct(attributes, ImageryPreferenceEntry.class); 045 ImageryInfo i = new ImageryInfo(prefEntry); 046 final ImageryLayer layer = ImageryLayer.create(i); 047 return layer; 048 } 049 050 }