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 ac4a1b78ce68a071570939e0f9fda6e4fa6b509e..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
@@ -35,20 +35,23 @@ import org.apache.fop.apps.FOPException;
 import org.apache.fop.apps.Fop;
 import org.apache.fop.apps.FopFactory;
 import org.apache.fop.apps.FopFactoryBuilder;
-import org.apache.xalan.processor.TransformerFactoryImpl;
 import org.apache.xmlgraphics.io.Resource;
 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.util.LangUtils;
-import org.geotools.data.collection.ListFeatureCollection;
-import org.geotools.data.simple.SimpleFeatureCollection;
-import org.opengis.feature.simple.SimpleFeature;
+import org.argeo.cms.util.LangUtils;
+import org.locationtech.jts.geom.Geometry;
+import org.locationtech.jts.geom.Polygon;
+
+import net.sf.saxon.BasicTransformerFactory;
 
 /**
  * A servlet transforming an XML view of the data to either FOP or PDF.
@@ -77,9 +80,6 @@ public class FopServlet extends HttpServlet {
                boolean pdf = ".pdf".equals(ext);
                ContentSession session = RemoteAuthUtils.doAs(() -> contentRepository.get(), new ServletHttpRequest(req));
                Content content = session.get(path);
-               Source xmlInput = content.adapt(Source.class);
-               String systemId = req.getRequestURL().toString();
-               xmlInput.setSystemId(systemId);
 
                // dev only
                final boolean DEV = true;
@@ -92,8 +92,15 @@ public class FopServlet extends HttpServlet {
                        } catch (TransformerConfigurationException | IOException e) {
                                throw new IllegalStateException("Cannot instantiate XSL " + xslUrl, e);
                        }
+
+                       Source xmlInput = content.adapt(Source.class);
+                       XmlNormalizer.print(xmlInput, 0);
                }
 
+               Source xmlInput = content.adapt(Source.class);
+               String systemId = req.getRequestURL().toString();
+               xmlInput.setSystemId(systemId);
+
                URIResolver uriResolver = (href, base) -> {
                        try {
                                URI url = URI.create(href);
@@ -103,29 +110,44 @@ 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;
                                                }
                                        }
                                }
                        } catch (IOException e) {
                                throw new RuntimeException("Cannot process " + href);
                        }
-                       
-                       String p = href.startsWith("/")?href:path+'/'+href;
+
+                       String p = href.startsWith("/") ? href : path + '/' + href;
+                       p = URLDecoder.decode(p, StandardCharsets.UTF_8);
                        Content subContent = session.get(p);
                        return subContent.adapt(Source.class);
                };
@@ -186,9 +208,7 @@ public class FopServlet extends HttpServlet {
                documentBuilderFactory.setXIncludeAware(true);
                documentBuilderFactory.setNamespaceAware(true);
 
-               // We must explicitly use the non-XSLTC transformer, as XSLTC is not working
-               // with DocBook stylesheets
-               transformerFactory = new TransformerFactoryImpl();
+               transformerFactory = new BasicTransformerFactory();
 //             transformerFactory = TransformerFactory.newDefaultInstance();
                try {
                        String xslStr = LangUtils.get(properties, PROP_ARGEO_FO_XSL);