separated build-in vars from BExpressionContext

brouter-mem-router/src/main/java/btools/memrouter/TwinRoutingEngine.java

@@ -0,0 +1,98 @@
+package btools.memrouter;
+
+import java.io.File;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import btools.expressions.BExpressionContext;
+import btools.router.OsmNodeNamed;
+import btools.router.OsmTrack;
+import btools.router.RoutingContext;
+import btools.router.RoutingEngine;
+
+public class TwinRoutingEngine extends RoutingEngine
+{
+  private static Object graphSync = new Object();
+  private static GraphLoader graph;
+  
+  public TwinRoutingEngine( String outfileBase, String logfileBase, String segmentDir,
+          List<OsmNodeNamed> waypoints, RoutingContext rc )
+  {
+    super( outfileBase, logfileBase, segmentDir, waypoints, rc );
+  }
+
+  public void doRun( long maxRunningTime )
+  {
+	if ( routingContext.localFunction != null && routingContext.localFunction.startsWith( "../im/") )
+	{
+	  doMemoryRun( maxRunningTime );
+	}
+	else
+	{
+      super.doRun( maxRunningTime );
+	}
+  }
+
+  static private Map<String,BExpressionContext[]> expressionCache = new HashMap<String,BExpressionContext[]>();
+  
+  private void doMemoryRun( long maxRunningTime )
+  {
+    try
+    {
+	  synchronized( graphSync )
+	  {
+	    if ( graph == null )
+	    {
+	    	loadGraph();
+	    }
+	    
+/*	    // reuse old expression-caches
+	    BExpressionContext[] exp = expressionCache.get( routingContext.localFunction );
+	    if ( exp == null )
+	    {
+	    	exp = new BExpressionContext[2];
+	    	exp[0] = routingContext.expctxWay;
+	    	exp[1] = routingContext.expctxNode;
+	    	expressionCache.put( routingContext.localFunction, exp );
+	    }
+	    else
+	    {
+	      System.out.println( "re-using exp-ctx for : " + routingContext.localFunction );
+	      routingContext.expctxWay = exp[0];
+	      routingContext.expctxNode = exp[1];
+	    }	    
+*/
+	    OsmLinkP.currentserial++;
+	    ScheduledRouter router = new ScheduledRouter( graph, routingContext, this );
+	    foundTrack = router.findRoute( waypoints.get(0), waypoints.get(1), "17.12.2014-19:00", routingContext.getAlternativeIdx() );
+        System.out.println( "linksProcessed=" + router.linksProcessed + " linksReProcessed=" +  router.linksReProcessed);
+        System.out.println( "skippedChained=" + router.skippedChained + " closedSkippedChained=" +  router.closedSkippedChained);
+        
+	    System.out.println( "expCtxWay: requests: " + routingContext.expctxWay.requests + " requests2: " + routingContext.expctxWay.requests2 + " cache-misses: " + routingContext.expctxWay.cachemisses );
+        
+	  }
+    }
+    catch( Exception e )
+    {
+    	e.printStackTrace();
+    	errorMessage = e.getMessage();
+    }
+  }
+
+  
+  private void loadGraph() throws Exception
+  {
+	  File parentDir = new File( segmentDir ).getParentFile();
+	  File nodeTilesIn = new File( parentDir, "unodes55");
+	  File wayTilesIn = new File( parentDir, "waytiles55");
+	  File[] fahrplanFiles = new File[2];
+      fahrplanFiles[0] = new File( parentDir, "fahrplan_nahverkehr.txt" );
+      fahrplanFiles[1] = new File( parentDir, "fahrplan.txt" );
+      
+	  graph = new GraphLoader();
+	  graph.process( nodeTilesIn, wayTilesIn, fahrplanFiles, routingContext.expctxWay );
+  }
+
+  
+}