ben/brouter
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions 3

performance

Browse source
This commit is contained in:
Arndt 2016-09-10 16:03:15 +02:00
parent 9d00b0181e
commit 448bb11ad4
13 changed files with 204 additions and 125 deletions
Download patch file Download diff file Expand all files Collapse all files

17
brouter-expressions/src/main/java/btools/expressions/BExpressionContext.java
View file

@ -44,6 +44,8 @@ public abstract class BExpressionContext implements IByteArrayUnifier
private int[] lookupData = new int[0];
private byte[] abBuf = new byte[256];
private BitCoderContext ctxEndode = new BitCoderContext( abBuf );
private BitCoderContext ctxDecode = new BitCoderContext( new byte[0] );
private Map<String,Integer> variableNumbers = new HashMap<String,Integer>();
@ -121,11 +123,13 @@ public abstract class BExpressionContext implements IByteArrayUnifier
public byte[] encode( int[] ld )
{
// start with first bit hardwired ("reversedirection")
BitCoderContext ctx = new BitCoderContext( abBuf );
BitCoderContext ctx = ctxEndode;
ctx.reset();
int skippedTags = 0;
int nonNullTags= 0;
int skippedTags = 0;
int nonNullTags= 0;
// (skip first bit ("reversedirection") )
// all others are generic
for( int inum = 1; inum < lookupValues.size(); inum++ ) // loop over lookup names
@ -174,13 +178,16 @@ public abstract class BExpressionContext implements IByteArrayUnifier
decode( lookupData, false, ab );
lookupDataValid = true;
}
/**
* decode a byte-array into a lookup data array
*/
private void decode( int[] ld, boolean inverseDirection, byte[] ab )
{
BitCoderContext ctx = new BitCoderContext(ab);
BitCoderContext ctx = ctxDecode;
ctx.reset( ab );
// start with first bit hardwired ("reversedirection")
ld[0] = inverseDirection ? 2 : 0;