Introduce geometry to SVG

[gpl/argeo-suite.git] / org.argeo.app.servlet.publish / src / org / argeo / app / servlet / publish / FopServlet.java

diff --git a/org.argeo.app.servlet.publish/src/org/argeo/app/servlet/publish/FopServlet.java b/org.argeo.app.servlet.publish/src/org/argeo/app/servlet/publish/FopServlet.java
index 3344d75c112af1ab7a6806c60d3082f421451b30..c81619860d248a2a5f93e9dfce99fe3fecefbf93 100644 (file)
--- a/org.argeo.app.servlet.publish/src/org/argeo/app/servlet/publish/FopServlet.java
+++ b/org.argeo.app.servlet.publish/src/org/argeo/app/servlet/publish/FopServlet.java
@@ -40,15 +40,16 @@ import org.apache.xmlgraphics.io.ResourceResolver;
 import org.argeo.api.acr.Content;
 import org.argeo.api.acr.ContentRepository;
 import org.argeo.api.acr.ContentSession;
+import org.argeo.api.acr.NamespaceUtils;
 import org.argeo.app.geo.GeoUtils;
 import org.argeo.app.geo.GpxUtils;
+import org.argeo.app.geo.acr.GeoEntityUtils;
 import org.argeo.cms.acr.xml.XmlNormalizer;
 import org.argeo.cms.auth.RemoteAuthUtils;
 import org.argeo.cms.servlet.ServletHttpRequest;
 import org.argeo.cms.util.LangUtils;
-import org.geotools.api.feature.simple.SimpleFeature;
-import org.geotools.data.collection.ListFeatureCollection;
-import org.geotools.data.simple.SimpleFeatureCollection;
+import org.locationtech.jts.geom.Geometry;
+import org.locationtech.jts.geom.Polygon;
 
 import net.sf.saxon.BasicTransformerFactory;
 
@@ -81,7 +82,7 @@ public class FopServlet extends HttpServlet {
                Content content = session.get(path);
 
                // dev only
-               final boolean DEV = false;
+               final boolean DEV = true;
                if (DEV) {
                        try (InputStream in = xslUrl.openStream()) {
                                Source xslSource = new StreamSource(in);
@@ -109,21 +110,35 @@ public class FopServlet extends HttpServlet {
                                                return new StreamSource(in);
                                        }
                                        if (url.getScheme().equals("geo2svg")) {
-                                               String includePath = path + url.getPath();
-                                               String geoExt = includePath.substring(includePath.lastIndexOf('.'));
-                                               Content geoContent = session.get(includePath);
-                                               if (".gpx".equals(geoExt)) {
-                                                       try (InputStream in = geoContent.open(InputStream.class)) {
-                                                               SimpleFeature field = GpxUtils.parseGpxToPolygon(in);
-                                                               SimpleFeatureCollection features = new ListFeatureCollection(field.getType(), field);
-                                                               try (StringWriter writer = new StringWriter()) {
-                                                                       GeoUtils.exportToSvg(features, writer, 100, 100);
-                                                                       StreamSource res = new StreamSource(new StringReader(writer.toString()));
-                                                                       return res;
+                                               int lastDot = url.getPath().lastIndexOf('.');
+                                               Polygon polygon;
+                                               if (lastDot > 0) {
+                                                       String includePath = path + url.getPath();
+                                                       Content geoContent = session.get(includePath);
+                                                       String geoExt = includePath.substring(lastDot);
+                                                       if (".gpx".equals(geoExt)) {
+                                                               try (InputStream in = geoContent.open(InputStream.class)) {
+                                                                       polygon = GpxUtils.parseGpxTrackTo(in, Polygon.class);
                                                                }
+                                                       } else {
+                                                               throw new UnsupportedOperationException(geoExt + " is not supported");
                                                        }
                                                } else {
-                                                       throw new UnsupportedOperationException(geoExt + " is not supported");
+                                                       Content geoContent;
+                                                       String attrName;
+                                                       if (url.getPath().startsWith("/@")) {
+                                                               geoContent = content;
+                                                               attrName = url.getPath().substring(2);// remove /@
+                                                       } else {
+                                                               throw new IllegalArgumentException("Only direct attributes are currently supported");
+                                                       }
+                                                       polygon = GeoEntityUtils.getGeometry(geoContent, NamespaceUtils.parsePrefixedName(attrName),
+                                                                       Polygon.class);
+                                               }
+                                               try (StringWriter writer = new StringWriter()) {
+                                                       GeoUtils.exportToSvg(new Geometry[] { polygon }, writer, 100, 100);
+                                                       StreamSource res = new StreamSource(new StringReader(writer.toString()));
+                                                       return res;
                                                }
                                        }
                                }