Added metadata conversion to RDF

src/main/java/w2phtml/project.properties

@@ -1,3 +1,3 @@
-#Wed Apr 22 15:32:34 CEST 2020
+#Wed Apr 22 20:17:51 CEST 2020
 releaseVersion=0.5.7
-releaseDate=15\:32\:34 22-04-2020
+releaseDate=20\:17\:51 22-04-2020

src/main/java/w2phtml/rdf/DocumentPart.java

@@ -2,6 +2,7 @@ package w2phtml.rdf;
 
 import java.io.StringWriter;
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.Set;
 
 import javax.xml.transform.OutputKeys;
@@ -15,11 +16,13 @@ import javax.xml.transform.stream.StreamResult;
 
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
+import org.w3c.dom.NamedNodeMap;
 import org.w3c.dom.Node;
 import org.w3c.dom.NodeList;
 import org.w3c.dom.ls.DOMImplementationLS;
 import org.w3c.dom.ls.LSSerializer;
 
+import w2phtml.util.Misc;
 import w2phtml.xhtml.XhtmlDocument;
 
 public class DocumentPart {
@@ -41,8 +44,40 @@ public class DocumentPart {
 		extractNumber();
 		extractBody();
 		calculateParentPath();
+		extractAnnotationMetadata();
+	}
+	private void extractAnnotationMetadata() {
+		metadata = new HashMap<String,Set<String>>();
+		if (excerptDoc == null) {
+			System.out.println("Error. Excerpt doc is null!");
+			return;
+		}
+		Element head = excerptDoc.getHeadNode();
+		if (head == null) {
+			System.out.println("Error. Head node is null!");
+			return;
+		}
+		NodeList metas = head.getElementsByTagName("meta");
+		for (int i = 0; i < metas.getLength();i++) {
+			Node meta = metas.item(i);
+			if (Misc.isElement(meta)) {
+				Element metaElements = (Element) meta;
+				if (metaElements.hasAttribute("name") && metaElements.hasAttribute("content")) {
+					String metaName = metaElements.getAttribute("name");
+					String metaValue = metaElements.getAttribute("content");
+					if (metadata.containsKey(metaName)) {
+						metadata.get(metaName).add(metaValue);
+					} else {
+						Set<String> names = new HashSet<String>();
+						names.add(metaValue);
+						metadata.put(metaName, names);
+					}
+				}
+			}
+		}
 	}
 	public DocumentPart(String path) {
+		metadata = new HashMap<String,Set<String>>();
 		this.path = path;
 		this.name = "";
 		extractNumber();
@@ -103,12 +138,8 @@ public class DocumentPart {
 		this.metadata = metadata;
 	}
 	public HashMap<String,Set<String>> getMetadata(){
-		if (metadata == null) {
-			return new HashMap<String,Set<String>>();
-		} else {
 		return metadata;
 	}
-	}
 	
 	private void extractPath() {
 		Element excerptContentNode = excerptDoc.getContentNode();

src/main/java/w2phtml/xhtml/Converter.java

@@ -252,7 +252,9 @@ public class Converter extends BasicConverter {
 	
     public L10n getL10n() { return l10n; }
     
-    public void setOpenPubStructure(boolean b) { isEPUB = true; }
+    public void setOpenPubStructure(boolean b) { 
+    	isEPUB = b; 
+    }
     
     public boolean isOPS() { return isEPUB; }
     

src/main/java/w2phtml/xhtml/content/Separator.java

@@ -417,6 +417,9 @@ public class Separator {
 	}
 	
 	public void appendMetadata(String name, String value) {
+		if (!greenstoneSeparation) {
+			return;
+		}
 		if (currentComment == null) {
 			System.out.println("Error. No current Comment");
 			return;