first pass at creating a csv download option. TODO icons on page, debug failing load

webapp/src/edu/cornell/mannlib/vitro/webapp/search/controller/PagedSearchController.java

@@ -70,6 +70,7 @@ public class PagedSearchController extends FreemarkerHttpServlet {
     protected static final int DEFAULT_MAX_HIT_COUNT = 1000;   
 
     private static final String PARAM_XML_REQUEST = "xml";
+    private static final String PARAM_CSV_REQUEST = "csv";
     private static final String PARAM_START_INDEX = "startIndex";
     private static final String PARAM_HITS_PER_PAGE = "hitsPerPage";
     private static final String PARAM_CLASSGROUP = "classgroup";
@@ -79,7 +80,7 @@ public class PagedSearchController extends FreemarkerHttpServlet {
     protected static final Map<Format,Map<Result,String>> templateTable;
 
     protected enum Format { 
-        HTML, XML; 
+        HTML, XML, CSV; 
     }
     
     protected enum Result {
@@ -101,9 +102,10 @@ public class PagedSearchController extends FreemarkerHttpServlet {
             throws IOException, ServletException {
         VitroRequest vreq = new VitroRequest(request);
         boolean wasXmlRequested = isRequestedFormatXml(vreq);
-        if( ! wasXmlRequested ){
+        boolean wasCSVRequested = isRequestedFormatCSV(vreq);
+        if( !wasXmlRequested && !wasCSVRequested){
             super.doGet(vreq,response);
-        }else{
+        }else if (wasXMLRequested){
             try {                
                 ResponseValues rvalues = processRequest(vreq);
                 
@@ -113,6 +115,16 @@ public class PagedSearchController extends FreemarkerHttpServlet {
             } catch (Exception e) {
                 log.error(e, e);
             }
+        }else if (wasCSVRequested){
+        	try {                
+                ResponseValues rvalues = processRequest(vreq);
+                
+                response.setCharacterEncoding("UTF-8");
+                response.setContentType("text/csv;charset=UTF-8");
+                writeTemplate(rvalues.getTemplateName(), rvalues.getMap(), request, response);
+            } catch (Exception e) {
+                log.error(e, e);
+            }
         }
     }
 
@@ -672,10 +684,25 @@ public class PagedSearchController extends FreemarkerHttpServlet {
             return false;
         }
     }
+    
+    protected boolean isRequestedFormatCSV(VitroRequest req){
+        if( req != null ){
+            String param = req.getParameter(PARAM_CSV_REQUEST);
+            if( param != null && "1".equals(param)){
+                return true;
+            }else{
+                return false;
+            }
+        }else{
+            return false;
+        }
+    }
 
     protected Format getFormat(VitroRequest req){
         if( req != null && req.getParameter("xml") != null && "1".equals(req.getParameter("xml")))
             return Format.XML;
+        else if ( req != null && req.getParameter("csv") != null && "1".equals(req.getParameter("csv")))
+        	return Format.CSV;
         else 
             return Format.HTML;
     }
@@ -705,9 +732,20 @@ public class PagedSearchController extends FreemarkerHttpServlet {
         resultsToTemplates = new HashMap<Result,String>();
         resultsToTemplates.put(Result.PAGED, "search-xmlResults.ftl");
         resultsToTemplates.put(Result.ERROR, "search-xmlError.ftl");
+
         // resultsToTemplates.put(Result.BAD_QUERY, "search-xmlBadQuery.ftl");        
         templateTable.put(Format.XML, Collections.unmodifiableMap(resultsToTemplates));
         
+        
+        // set up CSV format
+        resultsToTemplates = new HashMap<Result,String>();
+        resultsToTemplates.put(Result.PAGED, "search-csvResults.ftl");
+        resultsToTemplates.put(Result.ERROR, "search-csvError.ftl");
+        
+        // resultsToTemplates.put(Result.BAD_QUERY, "search-xmlBadQuery.ftl");        
+        templateTable.put(Format.CSV, Collections.unmodifiableMap(resultsToTemplates));
+
+        
         return Collections.unmodifiableMap(templateTable);
     }
 }

webapp/web/templates/freemarker/body/search/search-csvResults.ftl

@@ -0,0 +1,5 @@
+<#-- $This file is distributed under the terms of the license in /doc/license.txt$ -->
+URI,Name
+    <#list individuals as individual>                 
+          ${individual.uri?xml},${individual.name?xml}
+    </#list>

webapp/web/templates/freemarker/body/search/search-pagedResults.ftl

@@ -8,8 +8,14 @@
     <#if classGroupName?has_content>limited to type '${classGroupName}'</#if>
     <#if typeName?has_content>limited to type '${typeName}'</#if>
 </#escape>
+<span id="downloadResults">
+	<img src="images/share-uri-icon.png" alt="XML/RDF Results" />
+	
+</span>
 </h2>
+
 <span id="searchHelp"><a href="${urls.base}/searchHelp" title="search help">Not the results you expected?</a></span>
+
 <div class="contentsBrowseGroup">
 
     <#-- Refinement links -->