Fixes from trial guide testing

* StatisticsTracker.java
    allow Crawl Summary report to complete even pre-launch
* BeanBrowseResource.java, ScriptResource.java
    add page title, backlink to job
* EngineResource.java, PagedRepresentation.java
    better in-page labeling

engine/src/main/java/org/archive/crawler/reporting/StatisticsTracker.java

@@ -989,7 +989,7 @@ public class StatisticsTracker
         for (Iterator<String> i = getSeedsIterator();i.hasNext();) {
             SeedRecord sr = processedSeedsRecords.get(i.next());
             seedsTotal++;
-            if((sr.getStatusCode() > 0)) {
+            if(sr!=null &&(sr.getStatusCode() > 0)) {
                 seedsCrawled++;
             }
         }

engine/src/main/java/org/archive/crawler/restlet/BeanBrowseResource.java

@@ -30,6 +30,7 @@ import java.util.Set;
 
 import org.apache.commons.lang.StringUtils;
 import org.archive.spring.PathSharingContext;
+import org.archive.util.TextUtils;
 import org.restlet.Context;
 import org.restlet.data.CharacterSet;
 import org.restlet.data.Form;
@@ -128,9 +129,10 @@ public class BeanBrowseResource extends JobRelatedResource {
     
     protected void writeHtml(Writer writer) {
         PrintWriter pw = new PrintWriter(writer); 
-        
-        
-        pw.println("<h1>Crawl beans in built job <i>"+cj.getShortName()+"</i></h1>");
+        pw.println("<head><title>Crawl beans in "+cj.getShortName()+"</title></head>");
+        pw.println("<h1>Crawl beans in built job <i><a href='/engine/job/"
+                +TextUtils.urlEscape(cj.getShortName())
+                +"'>"+cj.getShortName()+"</a></i></h1>");
         pw.println("Enter a bean path of the form <i>beanName</i>, <i>beanName.property</i>, <i>beanName.property[indexOrKey]</i>, etc.");
         pw.println("<form method='POST'><input type='text' name='beanPath' style='width:400px' value='"+beanPath+"'/>");
         pw.println("<input type='submit' value='view'/></form>");

engine/src/main/java/org/archive/crawler/restlet/EngineResource.java

@@ -19,6 +19,7 @@
 
 package org.archive.crawler.restlet;
 
+import java.io.File;
 import java.io.IOException;
 import java.io.PrintWriter;
 import java.io.Writer;
@@ -79,6 +80,12 @@ public class EngineResource extends Resource {
     protected void writeHtml(Writer writer) {
         Engine engine = getEngine();
         String engineTitle = "Heritrix Engine "+engine.getHeritrixVersion();
+        File jobsDir = engine.getJobsDir();
+        try {
+            jobsDir = jobsDir.getCanonicalFile();
+        } catch (IOException ioe) {
+            // live with the noncanonical file
+        }
         String baseRef = getRequest().getResourceRef().getBaseRef().toString();
         if(!baseRef.endsWith("/")) {
             baseRef += "/";
@@ -91,21 +98,28 @@ public class EngineResource extends Resource {
         
         pw.println("<b>Memory: </b>");
         pw.println(engine.heapReport());
-        
-        pw.println("<h2>Browse <a href='jobsdir'>Jobs Directory</a></h2>");
+        pw.println("<br/><br/>");
+        pw.println("<b>Jobs Directory</b>: <a href='jobsdir'>"+jobsDir.getAbsolutePath()+"</a></h2>");
         
         ArrayList<CrawlJob> jobs = new ArrayList<CrawlJob>();
         jobs.addAll(engine.getJobConfigs().values());
          
-        pw.println("<form method=\'POST\'><h2>Job Configs ("+jobs.size()+")");
+        pw.println("<form method=\'POST\'><h2>Job Directories ("+jobs.size()+")");
         pw.println("<input style='width:6em' type='submit' name='action' value='rescan'>");
         pw.println("</h2></form>");
         Collections.sort(jobs);
+        pw.println("<ul>");
         for(CrawlJob cj: jobs) {
             pw.println("<li>");
             cj.writeHtmlTo(pw,"job/");
             pw.println("</li>");
         }
+        pw.println("</ul>");
+        pw.println(
+            "To create a new job, use the 'copy' functionality on " +
+            "an existing job's detail page, or create a new job " +
+            "directory outside this interface and use the 'rescan' " +
+            "button.");
         pw.println("</body>");
         pw.flush();
     }

engine/src/main/java/org/archive/crawler/restlet/PagedRepresentation.java

@@ -130,7 +130,7 @@ public class PagedRepresentation extends CharacterRepresentation {
         loadLines();
         
         PrintWriter pw = new PrintWriter(writer); 
-        pw.println(file);
+        pw.println("<b>Paged view:</b> "+file);
         emitControls(pw); 
         
         pw.println("<pre>");
@@ -198,7 +198,7 @@ public class PagedRepresentation extends CharacterRepresentation {
             pw.println("</td>");
             
             pw.println("<td style='text-align:right'>");
-            pw.println("<a href='"+getControlUri(position,lineCount,false)+"'>normal</a>");
+            pw.println("<a href='"+getControlUri(position,lineCount,false)+"'>forward</a>");
             pw.println("| <b>reversed</b>"); 
         } else {
             pw.print("<td style='text-align:left'>");
@@ -224,7 +224,7 @@ public class PagedRepresentation extends CharacterRepresentation {
             pw.println("'>end &raquo;</a>");
             pw.println("</td>");
             
-            pw.println("<td style='text-align:right'><b>normal</b>"); 
+            pw.println("<td style='text-align:right'><b>forward</b>"); 
             pw.println("| <a href='"+getControlUri(position,lineCount,true)+"'>reversed</a>"); 
         }
                 

engine/src/main/java/org/archive/crawler/restlet/ScriptResource.java

@@ -32,6 +32,7 @@ import javax.script.ScriptException;
 
 import org.apache.commons.lang.StringEscapeUtils;
 import org.apache.commons.lang.StringUtils;
+import org.archive.util.TextUtils;
 import org.restlet.Context;
 import org.restlet.data.CharacterSet;
 import org.restlet.data.Form;
@@ -122,7 +123,11 @@ public class ScriptResource extends JobRelatedResource {
 
     protected void writeHtml(Writer writer) {
         PrintWriter pw = new PrintWriter(writer); 
-        pw.println("<h1>Execute script for job <i>"+cj.getShortName()+"</i></h1>");
+        pw.println("<head><title>Script in "+cj.getShortName()+"</title></head>");
+        pw.println("<h1>Execute script for job <i><a href='/engine/job/"
+                    +TextUtils.urlEscape(cj.getShortName())
+                    +"'>"+cj.getShortName()+"</a></i></h1>");
+
         // output of previous script, if any
 
         if(ex!=null) {