Changeset 30585

Timestamp:

2016-06-20T12:40:19+12:00 (7 years ago)

Author:

kjdon

Message:

added method findExtraMetadataNames. This looks through xsl to find gsf:metadata, gsf:image etc and creates a list of metadata names that should be retrieved. Will replace methods in action and transforming receptionist, which both are doing this but doing it differently.

File:

• main/trunk/greenstone3/src/java/org/greenstone/gsdl3/util/GSXSLT.java (modified) (2 diffs)

main/trunk/greenstone3/src/java/org/greenstone/gsdl3/util/GSXSLT.java

@@ -22 +22 @@
 import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.Vector;
 
@@ -404 +405 @@
     }
 
+
+  public static void findExtraMetadataNames(Element xsl_elem, HashSet<String> meta_names) {
+
+    // gsf:metadata and gsf:foreach-metadata
+    NodeList metadata_nodes = xsl_elem.getElementsByTagNameNS(GSXML.GSF_NAMESPACE, "metadata"); 
+    NodeList foreach_metadata_nodes = xsl_elem.getElementsByTagNameNS(GSXML.GSF_NAMESPACE, "foreach-metadata");
+    int num_meta_nodes = metadata_nodes.getLength();
+    int total_nodes = num_meta_nodes +foreach_metadata_nodes.getLength();
+    for (int i = 0; i < total_nodes; i++) {
+      Element current;
+      if (i<num_meta_nodes) {
+    current = (Element) metadata_nodes.item(i);
+      } else {
+    current = (Element) foreach_metadata_nodes.item(i-num_meta_nodes);
+      }
+      String full_name = current.getAttribute("name");
+      String select = current.getAttribute("select");
+      
+      String [] names = full_name.split(",");
+      for(int j=0; j<names.length; j++) {
+    
+    String name = names[j];
+    if (!name.equals("")) {
+      if (!select.equals("")) {
+        name = select + GSConstants.META_RELATION_SEP + name;
+      }
+      meta_names.add(name);
+    }
+      }
+    }
+    
+    // gsf:link
+    boolean getEquivLinkMeta = false;
+    NodeList link_nodes = xsl_elem.getElementsByTagNameNS(GSXML.GSF_NAMESPACE, "link");
+    for (int i = 0; i < link_nodes.getLength(); i++) {
+      
+      Element elem = (Element) link_nodes.item(i);
+      String type = elem.getAttribute("type");
+      if (type.equals("source"))
+    {
+      meta_names.add("assocfilepath");
+      meta_names.add("srclinkFile");
+    }
+      else if (type.equals("web"))
+    {
+      meta_names.add("weblink");
+      meta_names.add("webicon");
+      meta_names.add("/weblink");
+    }
+      else if (type.equals("equivdoc"))
+    {
+      getEquivLinkMeta = true; // equivalent to gsf:equivlinkgs3
+    }
+    }
+    // gsf:equivlinkgs3
+    link_nodes = xsl_elem.getElementsByTagNameNS(GSXML.GSF_NAMESPACE, "equivlinkgs3");
+    if (getEquivLinkMeta || link_nodes.getLength() > 0) {
+      
+      String[] equivlink_metanames = { "equivDocIcon", "equivDocLink", "/equivDocLink" };
+
+      for (int i = 0; i < equivlink_metanames.length; i++)
+    {
+      StringBuffer metadata = new StringBuffer();
+      metadata.append("all"); // this means the attr multiple = true;
+      metadata.append(GSConstants.META_RELATION_SEP);
+      
+      metadata.append(GSConstants.META_SEPARATOR_SEP);
+      metadata.append(','); // attr separator = ","
+      metadata.append(GSConstants.META_SEPARATOR_SEP);
+      metadata.append(GSConstants.META_RELATION_SEP);
+      
+      // the name of the metadata we're retrieving
+      metadata.append(equivlink_metanames[i]);
+      meta_names.add(metadata.toString());
+    }
+    }
+    
+    // gsf:icon
+    NodeList icon_nodes = xsl_elem.getElementsByTagNameNS(GSXML.GSF_NAMESPACE, "icon");
+    for (int i = 0; i < icon_nodes.getLength(); i++) {
+      Element current = (Element) icon_nodes.item(i);
+      String type = current.getAttribute(GSXML.TYPE_ATT);
+      if (type == null || type.length() == 0) {
+    continue;
+      }
+      if (type.equals("web")) {
+    meta_names.add("webicon");
+    break; // this is the only one we are looking for at the moment
+      }
+    }
+    
+    // gsf:image
+    NodeList image_nodes = xsl_elem.getElementsByTagNameNS(GSXML.GSF_NAMESPACE, "image");
+    for (int i = 0; i < image_nodes.getLength(); i++) {
+      Element current = (Element) image_nodes.item(i);
+      String type = current.getAttribute(GSXML.TYPE_ATT);
+      if (type == null || type.length() == 0) {
+    continue;
+      }
+      
+      if (type.equals("source")) {
+    
+    String[] standardSourceMeta = new String[] { "SourceFile", "ImageHeight", "ImageWidth", "ImageType", "srcicon" };
+    for (String meta : standardSourceMeta) {
+      meta_names.add(meta);
+    }
+    
+      }
+      else if (type.equals("screen")) {
+    
+    String[] standardScreenMeta = new String[] { "Screen", "ScreenHeight", "ScreenWidth", "ScreenType", "screenicon" };
+    for (String meta : standardScreenMeta) {
+      meta_names.add(meta);
+    }
+      }
+      else if (type.equals("thumb")) {
+    String[] standardThumbMeta = new String[] { "Thumb", "ThumbHeight", "ThumbWidth", "ThumbType", "thumbicon" };
+    for (String meta : standardThumbMeta) {
+      meta_names.add(meta);
+    }
+      }
+      else if (type.equals("cover")) {
+    meta_names.add("hascover");
+    logger.error("adding hascover");
+      }
+    }  
+  }
+  
     /**
      * looks through a stylesheet for <xxx:template match='template_name'>