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initial commit of BRouter Version 0.98

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Arndt Brenschede 2014-01-18 15:29:05 +01:00
parent e4ae2b37d3
commit 91e62f1164
120 changed files with 15382 additions and 0 deletions
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240
brouter-map-creator/src/main/java/btools/mapcreator/OsmParser.java Normal file
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package btools.mapcreator;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.zip.GZIPInputStream;
/**
* Parser for OSM data
*
* @author ab
*/
public class OsmParser extends MapCreatorBase
{
private BufferedReader _br;
private NodeListener nListener;
private WayListener wListener;
private RelationListener rListener;
public void readMap( File mapFile,
NodeListener nListener,
WayListener wListener,
RelationListener rListener ) throws Exception
{
this.nListener = nListener;
this.wListener = wListener;
this.rListener = rListener;
if ( mapFile == null )
{
_br = new BufferedReader(new InputStreamReader(System.in));
}
else
{
if ( mapFile.getName().endsWith( ".gz" ) )
{
_br = new BufferedReader(new InputStreamReader( new GZIPInputStream( new FileInputStream( mapFile ) ) ) );
}
else
{
_br = new BufferedReader(new InputStreamReader( new FileInputStream( mapFile ) ) );
}
}
for(;;)
{
String line = _br.readLine();
if ( line == null ) break;
if ( checkNode( line ) ) continue;
if ( checkWay( line ) ) continue;
if ( checkRelation( line ) ) continue;
if ( checkChangeset( line ) ) continue;
}
if ( mapFile != null )
{
_br.close();
}
}
private boolean checkNode( String line ) throws Exception
{
int idx0 = line.indexOf( "<node id=\"" );
if ( idx0 < 0 ) return false;
idx0 += 10;
int idx1 = line.indexOf( '"', idx0 );
long nodeId = Long.parseLong( line.substring( idx0, idx1 ) );
int idx2 = line.indexOf( " lat=\"" );
if ( idx2 < 0 ) return false;
idx2 += 6;
int idx3 = line.indexOf( '"', idx2 );
double lat = Double.parseDouble( line.substring( idx2, idx3 ) );
int idx4 = line.indexOf( " lon=\"" );
if ( idx4 < 0 ) return false;
idx4 += 6;
int idx5 = line.indexOf( '"', idx4 );
double lon = Double.parseDouble( line.substring( idx4, idx5 ) );
NodeData n = new NodeData( nodeId, lon, lat );
if ( !line.endsWith( "/>" ) )
{
// read additional tags
for(;;)
{
String l2 = _br.readLine();
if ( l2 == null ) return false;
int i2;
if ( (i2 = l2.indexOf( "<tag k=\"" )) >= 0 )
{ // property-tag
i2 += 8;
int ri2 = l2.indexOf( '"', i2 );
String key = l2.substring( i2, ri2 );
i2 = l2.indexOf( " v=\"", ri2 );
if ( i2 >= 0 )
{
i2 += 4;
int ri3 = l2.indexOf( '"', i2 );
String value = l2.substring( i2, ri3 );
n.putTag( key, value );
}
}
else if ( l2.indexOf( "</node>" ) >= 0 )
{ // end-tag
break;
}
}
}
nListener.nextNode( n );
return true;
}
private boolean checkWay( String line ) throws Exception
{
int idx0 = line.indexOf( "<way id=\"" );
if ( idx0 < 0 ) return false;
idx0 += 9;
int idx1 = line.indexOf( '"', idx0 );
long id = Long.parseLong( line.substring( idx0, idx1 ) );
WayData w = new WayData( id );
// read the nodes
for(;;)
{
String l2 = _br.readLine();
if ( l2 == null ) return false;
int i2;
if ( (i2 = l2.indexOf( "<nd ref=\"" )) >= 0 )
{ // node reference
i2 += 9;
int ri2 = l2.indexOf( '"', i2 );
long nid = Long.parseLong( l2.substring( i2, ri2 ) );
w.nodes.add( nid );
}
else if ( (i2 = l2.indexOf( "<tag k=\"" )) >= 0 )
{ // property-tag
i2 += 8;
int ri2 = l2.indexOf( '"', i2 );
String key = l2.substring( i2, ri2 );
i2 = l2.indexOf( " v=\"", ri2 );
if ( i2 >= 0 )
{
i2 += 4;
int ri3 = l2.indexOf( '"', i2 );
String value = l2.substring( i2, ri3 );
w.putTag( key, value );
}
}
else if ( l2.indexOf( "</way>" ) >= 0 )
{ // end-tag
break;
}
}
wListener.nextWay( w );
return true;
}
private boolean checkChangeset( String line ) throws Exception
{
int idx0 = line.indexOf( "<changeset id=\"" );
if ( idx0 < 0 ) return false;
if ( !line.endsWith( "/>" ) )
{
int loopcheck = 0;
for(;;)
{
String l2 = _br.readLine();
if ( l2.indexOf("</changeset>") >= 0 || ++loopcheck > 10000 ) break;
}
}
return true;
}
private boolean checkRelation( String line ) throws Exception
{
int idx0 = line.indexOf( "<relation id=\"" );
if ( idx0 < 0 ) return false;
idx0 += 14;
int idx1 = line.indexOf( '"', idx0 );
long rid = Long.parseLong( line.substring( idx0, idx1 ) );
RelationData r = new RelationData( rid );
// read the nodes
for(;;)
{
String l2 = _br.readLine();
if ( l2 == null ) return false;
int i2;
if ( (i2 = l2.indexOf( "<member type=\"way\" ref=\"" )) >= 0 )
{ // node reference
i2 += 24;
int ri2 = l2.indexOf( '"', i2 );
long wid = Long.parseLong( l2.substring( i2, ri2 ) );
r.ways.add( wid );
}
else if ( (i2 = l2.indexOf( "<tag k=\"" )) >= 0 )
{ // property-tag
i2 += 8;
int ri2 = l2.indexOf( '"', i2 );
String key = l2.substring( i2, ri2 );
i2 = l2.indexOf( " v=\"", ri2 );
if ( i2 >= 0 )
{
i2 += 4;
int ri3 = l2.indexOf( '"', i2 );
String value = l2.substring( i2, ri3 );
r.putTag( key, value );
}
}
else if ( l2.indexOf( "</relation>" ) >= 0 )
{ // end-tag
break;
}
}
rListener.nextRelation( r );
return true;
}
}