aggregate similar way-descriptions

brouter-core/src/main/java/btools/router/MessageData.java

@@ -5,10 +5,9 @@
  */
 package btools.router;
 
-import btools.expressions.BExpressionContext;
 
 
-final class MessageData
+final class MessageData implements Cloneable
 {
   int linkdist = 0;
   int linkelevationcost = 0;
@@ -44,5 +43,25 @@ final class MessageData
          + "\t" + wayKeyValues
          + "\t" + ( nodeKeyValues == null ? "" : nodeKeyValues );
   }
-    
+
+  void add( MessageData d )
+  {
+    linkdist += d.linkdist;
+    linkelevationcost += d.linkelevationcost;
+    linkturncost += d.linkturncost;
+    linknodecost += d.linknodecost;
+    linkinitcost+= d.linkinitcost;
+  }
+
+  MessageData copy()
+  {
+    try
+    {
+      return (MessageData)clone();
+    }
+    catch( CloneNotSupportedException e )
+    {
+      throw new RuntimeException( e );
+    }
+  }
 }

brouter-core/src/main/java/btools/router/OsmPath.java

@@ -42,7 +42,7 @@ final class OsmPath implements OsmLinkHolder
   // the costfactor of the segment just before this paths position
   public float lastClassifier;
 
-  public String message;
+  public MessageData message;
 
   OsmPath()
   {
@@ -122,7 +122,7 @@ final class OsmPath implements OsmLinkHolder
       // if way description changed, store message
       if ( msgData.wayKeyValues != null && !sameData )
       {
-        originElement.message = msgData.toMessage();
+        originElement.message = msgData;
         msgData = new MessageData();
       }
 
@@ -291,7 +291,7 @@ final class OsmPath implements OsmLinkHolder
         {
           originElement = new OsmPathElement( rc.ilonshortest, rc.ilatshortest, ele2, originElement );
           originElement.cost = cost;
-          originElement.message = msgData.toMessage();
+          originElement.message = msgData;
         }
         if ( rc.nogomatch )
         {
@@ -356,7 +356,7 @@ final class OsmPath implements OsmLinkHolder
         }
     }
 
-    message = msgData.toMessage();
+    message = msgData;
 
   }
 

brouter-core/src/main/java/btools/router/OsmPathElement.java

@@ -19,7 +19,7 @@ public final class OsmPathElement implements OsmPos
   private int ilon; // longitude
   private short selev; // longitude
 
-  public String message = null; // description
+  public MessageData message = null; // description
 
   public int cost;
 

brouter-core/src/main/java/btools/router/OsmTrack.java

@@ -27,7 +27,7 @@ import btools.util.FrozenLongMap;
 public final class OsmTrack
 {
   // csv-header-line
-  private static final String MESSAGES_HEADER = "Longitude\tLatitude\tElevation\tDistance\tCostPerKm\tElevCost\tTurnCost\tNodeCost\tInitialCost\tOsmTags";
+  private static final String MESSAGES_HEADER = "Longitude\tLatitude\tElevation\tDistance\tCostPerKm\tElevCost\tTurnCost\tNodeCost\tInitialCost\tWayTags\tNodeTags";
 
   public MatchedWaypoint endPoint;
   public long[] nogoChecksums;
@@ -78,6 +78,36 @@ public final class OsmTrack
 	nodesMap = new FrozenLongMap<OsmPathElementHolder>( nodesMap );
   }
   
+  private ArrayList<String> aggregateMessages()
+  {
+    ArrayList<String> res = new ArrayList<String>();
+    MessageData current = null;
+    for( OsmPathElement n : nodes )
+    {
+      if ( n.message != null )
+      {
+        MessageData md = n.message.copy();
+        if ( current != null )
+        {
+          if ( current.nodeKeyValues != null || !current.wayKeyValues.equals( md.wayKeyValues ) )
+          {
+            res.add( current.toMessage() );
+          }
+          else
+          {
+            md.add( current );
+          }
+        }
+        current = md;
+      }
+    }
+    if ( current != null )
+    {
+      res.add( current.toMessage() );
+    }
+    return res;
+  }
+
   /**
    * writes the track in binary-format to a file
    * @param filename the filename to write to
@@ -310,12 +340,9 @@ public final class OsmTrack
     sb.append( "        \"cost\": \"" ).append( cost ).append( "\",\n" );
     sb.append( "        \"messages\": [\n" );
     sb.append( "          [\"").append( MESSAGES_HEADER.replaceAll("\t", "\", \"") ).append( "\"],\n" );
-    for( OsmPathElement n : nodes )
+    for( String m : aggregateMessages() )
     {
-      if ( n.message != null )
-      {
-        sb.append( "          [\"").append( n.message.replaceAll("\t", "\", \"") ).append( "\"],\n" );
-      }
+      sb.append( "          [\"").append( m.replaceAll("\t", "\", \"") ).append( "\"],\n" );
     }
     sb.deleteCharAt( sb.lastIndexOf( "," ) );
     sb.append( "        ]\n" );
@@ -377,12 +404,9 @@ public final class OsmTrack
   public void writeMessages( BufferedWriter bw, RoutingContext rc ) throws Exception
   {
     dumpLine( bw, MESSAGES_HEADER );
-    for( OsmPathElement n : nodes )
+    for( String m : aggregateMessages() )
     {
-      if ( n.message != null )
-      {
-        dumpLine( bw, n.message );
-      }
+      dumpLine( bw, m );
     }
     if ( bw != null ) bw.close();
   }