Changeset 6873

Timestamp:

2004-02-24T11:13:42+13:00 (20 years ago)

Author:

kjdon

Message:

added some code to replace macros that come out of the GDBM db - the replacements need to be specified in the collectionConfig.xml file, at the top level <replace from= to=> in a <replaceList>

File:

• trunk/gsdl3/src/java/org/greenstone/gsdl3/service/GS2Retrieve.java (modified) (10 diffs)

trunk/gsdl3/src/java/org/greenstone/gsdl3/service/GS2Retrieve.java

@@ -35 +35 @@
 import java.util.Set;
 import java.util.Iterator;
+import java.util.ArrayList;
 
 /** Implements the generic retrieval and classifier services for GS2 
@@ -78 +79 @@
     protected Element config_info = null; // the xml from the config file
 
+    protected ArrayList replacements = null;
     /** constructor */
     protected GS2Retrieve()
@@ -185 +187 @@
         this.format_info_map.put(DOCUMENT_CONTENT_RETRIEVE_SERVICE, this.doc.importNode(display_format, true));
         // shoudl we make a copy?
+    }
+
+    // set up the replacement list
+    Element replacement_elem = (Element)GSXML.getChildByTagName(extra_info, "replaceList");
+    if (replacement_elem != null) {
+        this.replacements = new ArrayList();
+        NodeList replaces = replacement_elem.getElementsByTagName("replace");
+        for (int i=0; i<replaces.getLength(); i++) {
+        Element e = (Element)replaces.item(i);
+        String from = e.getAttribute("from");
+        String to = e.getAttribute("to");
+        System.out.println("replace "+from+" with "+to);
+        this.replacements.add(from);
+        this.replacements.add(to);
+        }
     }
     return true;
@@ -746 +763 @@
             String key = (String)it.next();
             String value = info.getInfo(key);
-            GSXML.addMetadata(this.doc, node_meta_list, key, value);
+            GSXML.addMetadata(this.doc, node_meta_list, key, replaceMacros(value));
         }
         } else { // just get the selected ones
@@ -771 +788 @@
     if (pos ==-1) {
         // just a plain meta entry eg dc.Title
-        return info.getInfo(metadata);
+        return replaceMacros((String)info.getInfo(metadata));
     }
     
@@ -831 +848 @@
 
     if (!multiple) {
-        result.append(relation_info.getInfo(metadata));
+        result.append(replaceMacros(relation_info.getInfo(metadata)));
     } else {
         // we have multiple meta
@@ -843 +860 @@
             result.append(separator);
             }
-            result.append(values.elementAt(i));
+            result.append(replaceMacros((String)values.elementAt(i)));
         }
         }
@@ -860 +877 @@
         if (!multiple) {
         result.insert(0, separator);
-        result.insert(0, relation_info.getInfo(metadata));
+        result.insert(0, replaceMacros(relation_info.getInfo(metadata)));
         } else {
         Vector values = relation_info.getMultiInfo(metadata);
@@ -866 +883 @@
             for (int i=values.size()-1; i>=0; i--) {
             result.insert(0, separator);
-            result.insert(0, values.elementAt(i));
+            result.insert(0, replaceMacros((String)values.elementAt(i)));
             }
         }
@@ -877 +894 @@
     }
     
+
+    protected String replaceMacros(String text) {
+    if (this.replacements == null) {
+        return text;
+    }
+    for (int i=0; i<this.replacements.size()-1; i+=2) {
+        String from  = (String)this.replacements.get(i);
+        String to = (String)this.replacements.get(i+1);
+        text = text.replaceAll(from, to);
+    }
+    return text;
+    }
     /** Retrieve the content of a document - implemented by concrete subclasses */
     protected abstract Element processDocumentContentRetrieve(Element request);