1. Added handler for unique coauthors in csv data format for coauthorship visualization.

2. Added another method for nodes to get yearToPublicationsCouts directly.
3. Changed styling of person level vis.
4. Cleaned up code

webapp/src/edu/cornell/mannlib/vitro/webapp/visualization/coauthorship/VisualizationRequestHandler.java

@@ -2,6 +2,12 @@ package edu.cornell.mannlib.vitro.webapp.visualization.coauthorship;
 
 import java.io.IOException;
 import java.io.PrintWriter;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Set;
+import java.util.TreeMap;
+import java.util.Map.Entry;
 
 import javax.servlet.RequestDispatcher;
 import javax.servlet.ServletException;
@@ -9,6 +15,8 @@ import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
 import org.apache.commons.logging.Log;
+import org.skife.csv.CSVWriter;
+import org.skife.csv.SimpleWriter;
 
 import com.hp.hpl.jena.query.DataSource;
 
@@ -17,6 +25,10 @@ import edu.cornell.mannlib.vitro.webapp.controller.Controllers;
 import edu.cornell.mannlib.vitro.webapp.controller.VitroRequest;
 import edu.cornell.mannlib.vitro.webapp.controller.visualization.VisualizationFrameworkConstants;
 import edu.cornell.mannlib.vitro.webapp.visualization.exceptions.MalformedQueryParametersException;
+import edu.cornell.mannlib.vitro.webapp.visualization.valueobjects.Node;
+import edu.cornell.mannlib.vitro.webapp.visualization.valueobjects.VivoCollegeOrSchool;
+import edu.cornell.mannlib.vitro.webapp.visualization.valueobjects.VivoDepartmentOrDivision;
+import edu.cornell.mannlib.vitro.webapp.visualization.visutils.UtilityFunctions;
 
 public class VisualizationRequestHandler {
 
@@ -48,6 +60,8 @@ public class VisualizationRequestHandler {
 
         String visContainer = vitroRequest.getParameter(VisualizationFrameworkConstants.VIS_CONTAINER_URL_HANDLE);
         
+        String sparklineVisMode = "sparkline";
+        
         QueryHandler queryManager =
         	new QueryHandler(egoURIParam,
 						     resultFormatParam,
@@ -64,19 +78,36 @@ public class VisualizationRequestHandler {
 	    	 * In order to avoid unneeded computations we have pushed this "if" condition up.
 	    	 * This case arises when the render mode is data. In that case we dont want to generate 
 	    	 * HTML code to render sparkline, tables etc. Ideally I would want to avoid this flow.
-	    	 * It is ugly! 
+	    	 * It is ugly!
 	    	 * */
-	    	if (VisualizationFrameworkConstants.DATA_RENDER_MODE_URL_VALUE.equalsIgnoreCase(renderMode)) { 
-			
+	    	
+			if (VisualizationFrameworkConstants.DATA_RENDER_MODE_URL_VALUE.equalsIgnoreCase(renderMode)) {
+				
+		    	/* 
+		    	 * We will be using the same visualization package for both sparkline & coauthorship flash 
+		    	 * vis. We will use "VIS_MODE_URL_HANDLE" as a modifier to differentiate between these two.
+		    	 * The defualt will be to render the coauthorship network vis.
+		    	 * */ 
+				
+				if (sparklineVisMode.equalsIgnoreCase(visMode)) { 
 	    			/*
-	    			 * When just the graphML file is required - based on which actual visualization will 
+	    			 * When the csv file is required - based on which sparkline visualization will 
 	    			 * be rendered.
 	    			 * */
-	    			prepareVisualizationQueryDataResponse(authorNodesAndEdges);
-					return;
-	    		
-	    		
+						prepareVisualizationQuerySparklineDataResponse(authorNodesAndEdges);
+						return;
+		    		
+				} else {
+		    			/*
+		    			 * When the graphML file is required - based on which coauthorship network visualization 
+		    			 * will be rendered.
+		    			 * */
+		    			prepareVisualizationQueryNetworkDataResponse(authorNodesAndEdges);
+						return;
+				}
 			}
+	    			
+			
 	    	
 	    	/*
 	    	 * Computations required to generate HTML for the sparklines & related context.
@@ -137,7 +168,7 @@ public class VisualizationRequestHandler {
 
 	}
 
-	private void prepareVisualizationQueryDataResponse(VisVOContainer authorNodesAndEdges) {
+	private void prepareVisualizationQueryNetworkDataResponse(VisVOContainer authorNodesAndEdges) {
 
 		response.setContentType("text/xml");
 		
@@ -161,6 +192,107 @@ public class VisualizationRequestHandler {
 		}
 	}
 	
+	private void prepareVisualizationQuerySparklineDataResponse(VisVOContainer authorNodesAndEdges) {
+		
+		
+		Map<String, Set<Node>> yearToCoauthors = getCoAuthorsStats(authorNodesAndEdges); 
+			
+		String outputFileName = UtilityFunctions.slugify(authorNodesAndEdges.getEgoNode().getNodeName()) 
+										+ "-coauthors" + ".csv";
+
+		response.setContentType("application/octet-stream");
+		response.setHeader("Content-Disposition", "attachment;filename=" + outputFileName);
+		
+		try {
+		
+		PrintWriter responseWriter = response.getWriter();
+		
+		/*
+		 * We are side-effecting responseWriter since we are directly manipulating the response 
+		 * object of the servlet.
+		 * */
+		generateCsvFileBuffer(yearToCoauthors, 
+							  responseWriter);
+
+		responseWriter.close();
+		
+		} catch (IOException e) {
+		e.printStackTrace();
+		}
+	}
+	
+	private void generateCsvFileBuffer(Map<String, Set<Node>> yearToCoauthors, PrintWriter printWriter) {
+		
+        CSVWriter csvWriter = new SimpleWriter(printWriter);
+        
+        try {
+			csvWriter.append(new String[]{"Year", "Number of Authors", "Authors"});
+			
+			for (Entry<String, Set<Node>> currentEntry : yearToCoauthors.entrySet()) {
+				
+				csvWriter.append(new Object[]{currentEntry.getKey(),
+											  currentEntry.getValue().size(), 
+											  getCoauthorsString(currentEntry.getValue())});
+			}
+			
+	        
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+		
+		printWriter.flush();
+		
+	}
+	
+	private String getCoauthorsString(Set<Node> coAuthors) {
+		
+		StringBuilder coAuthorsMerged = new StringBuilder();
+		
+		for (Node currCoAuthor : coAuthors) {
+			coAuthorsMerged.append(currCoAuthor.getNodeName() + ", ");
+		}
+		
+		return coAuthorsMerged.toString();
+	}
+	
+	private Map<String, Set<Node>> getCoAuthorsStats(VisVOContainer authorNodesAndEdges) {
+
+		Map<String, Set<Node>> yearToCoAuthors = new TreeMap<String, Set<Node>>();
+		
+		Node egoNode = authorNodesAndEdges.getEgoNode();
+		
+		for (Node currNode : authorNodesAndEdges.getNodes()) {
+					
+				/*
+				 * We have already printed the Ego Node info.
+				 * */
+				if (currNode != egoNode) {
+					
+					for (String year : currNode.getYearToPublicationCount().keySet()) {
+						
+						Set<Node> coAuthorNodes;
+						
+						if (yearToCoAuthors.containsKey(year)) {
+							
+							coAuthorNodes = yearToCoAuthors.get(year);
+							coAuthorNodes.add(currNode);
+							
+						} else {
+							
+							coAuthorNodes = new HashSet<Node>();
+							coAuthorNodes.add(currNode);
+							yearToCoAuthors.put(year, coAuthorNodes);
+						}
+						
+					}
+					
+				}
+		}
+		
+		
+		return yearToCoAuthors;
+	}
+
 	private void prepareVisualizationQueryStandaloneResponse(String egoURIParam, 
 															 HttpServletRequest request,
 															 HttpServletResponse response, 

webapp/src/edu/cornell/mannlib/vitro/webapp/visualization/personpubcount/VisualizationCodeGenerator.java

@@ -82,13 +82,6 @@ public class VisualizationCodeGenerator {
     	
 	}
 
-//	public VisVOContainer getValueObjectContainer() {
-//		
-//		
-//		
-//		return valueObjectContainer;
-//	}
-	
 	private String getMainVisualizationCode(List<BiboDocument> authorDocuments,
 										    String visMode, 
 										    String providedVisContainerID) {
@@ -514,7 +507,7 @@ public class VisualizationCodeGenerator {
 							+ "=" + URLEncoder.encode(VisualizationFrameworkConstants.STANDALONE_RENDER_MODE_URL_VALUE, 
 					 				 VisualizationController.URL_ENCODING_SCHEME).toString();
 			
-			fullTimelineLink = "<a href='" + fullTimelineNetworkURL + "'>View full timeline and network.</a><br />";
+			fullTimelineLink = "<a href='" + fullTimelineNetworkURL + "'>View full timeline and co-author network</a><br />";
 			
 			valueObjectContainer.setFullTimelineNetworkLink(fullTimelineNetworkURL);
 			

webapp/src/edu/cornell/mannlib/vitro/webapp/visualization/valueobjects/Node.java

@@ -20,6 +20,7 @@ public class Node extends Individual {
 
 	private int nodeID;
 	private Map<String, Integer> yearToPublicationCount;
+
 	private Set<BiboDocument> authorDocuments = new HashSet<BiboDocument>();
 
 	public Node(String nodeURL,
@@ -57,6 +58,12 @@ public class Node extends Individual {
 	}
 	
 	
+	public Map<String, Integer> getYearToPublicationCount() {
+		if (yearToPublicationCount == null) {
+			yearToPublicationCount = UtilityFunctions.getYearToPublicationCount(authorDocuments);
+		}
+		return yearToPublicationCount;
+	}
 	/*
 	 * getEarliest, Latest & Unknown Publication YearCount should only be used after 
 	 * the parsing of the entire sparql is done. Else it will give results based on
@@ -66,7 +73,6 @@ public class Node extends Individual {
 	public Map<String, Integer> getEarliestPublicationYearCount() {
 		if (yearToPublicationCount == null) {
 			yearToPublicationCount = UtilityFunctions.getYearToPublicationCount(authorDocuments);
-			System.out.println("early - " + yearToPublicationCount);
 		}
 		
 		/*