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access to way-context vars from (no caching) node-context

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Arndt Brenschede 2017-07-02 22:55:54 +02:00
parent 313592ebd3
commit d4f592732f
41 changed files with 4695 additions and 3 deletions
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44
brouter-map-creator/src/main/java/btools/mapdecoder/CharDecoder.java Normal file
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package btools.mapdecoder;
/**
* Decoder for unicode characters, using simple (1st order) huffmann
*/
public final class CharDecoder extends HuffmannTreeDecoder<Character>
{
private long[] alphabet;
private int range;
private char[] buffer = new char[64];
public CharDecoder( BitReadBuffer brb )
{
super( brb );
}
@Override
protected Object decodeTree()
{
alphabet = brb.decodeSortedArray();
range = alphabet.length - 1;
System.out.println( "decoded alphabet of length " + alphabet.length + " idx3 = " + alphabet[3] );
return super.decodeTree();
}
protected Character decodeItem()
{
int idx = (int)brb.decodeBounded( range );
long lc = alphabet[idx];
System.out.println( "decoded item: c=" + ((char)lc) + " idx=" + idx );
return Character.valueOf( (char)lc );
}
public String decodeString()
{
int n = brb.decodeInt();
char[] b = n <= buffer.length ? buffer : new char[n];
for( int i=0; i<n; i++ )
{
b[i] = decode().charValue();
}
return new String( b, 0, n );
}
}