138 lines
3.5 KiB
Java
138 lines
3.5 KiB
Java
package btools.routingapp;
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import java.io.File;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import android.os.Environment;
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import btools.router.OsmNodeNamed;
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/**
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* Read coordinates from a gpx-file
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*/
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public abstract class CoordinateReader
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{
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public List<OsmNodeNamed> waypoints;
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public List<OsmNodeNamed> nogopoints;
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public String basedir;
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public String rootdir;
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public String tracksdir;
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public Map<String,OsmNodeNamed> allpoints;
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private HashMap<String,OsmNodeNamed> pointmap;
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protected static String[] posnames
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= new String[]{ "from", "via1", "via2", "via3", "via4", "via5", "via6", "via7", "via8", "via9", "to" };
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public CoordinateReader( String basedir )
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{
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this.basedir = basedir;
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}
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public abstract long getTimeStamp() throws Exception;
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/*
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* read the from, to and via-positions from a gpx-file
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*/
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public void readFromTo() throws Exception
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{
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pointmap = new HashMap<String,OsmNodeNamed>();
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waypoints = new ArrayList<OsmNodeNamed>();
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nogopoints = new ArrayList<OsmNodeNamed>();
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readPointmap();
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boolean fromToMissing = false;
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for( int i=0; i<posnames.length; i++ )
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{
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String name = posnames[i];
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OsmNodeNamed n = pointmap.get(name);
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if ( n != null )
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{
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waypoints.add( n );
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}
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else
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{
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if ( "from".equals( name ) ) fromToMissing = true;
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if ( "to".equals( name ) ) fromToMissing = true;
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}
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}
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if ( fromToMissing ) waypoints.clear();
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}
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protected void checkAddPoint( OsmNodeNamed n )
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{
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if ( allpoints != null )
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{
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allpoints.put( n.name, n );
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return;
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}
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boolean isKnown = false;
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for( int i=0; i<posnames.length; i++ )
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{
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if ( posnames[i].equals( n.name ) )
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{
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isKnown = true;
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break;
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}
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}
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if ( isKnown )
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{
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if ( pointmap.put( n.name, n ) != null )
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{
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throw new IllegalArgumentException( "multiple " + n.name + "-positions!" );
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}
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}
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else if ( n.name != null && n.name.startsWith( "nogo" ) )
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{
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n.isNogo = true;
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nogopoints.add( n );
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}
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}
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protected abstract void readPointmap() throws Exception;
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public static CoordinateReader obtainValidReader( String basedir ) throws Exception
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{
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CoordinateReader cor = null;
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ArrayList<CoordinateReader> rl = new ArrayList<CoordinateReader>();
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rl.add( new CoordinateReaderOsmAnd(basedir) );
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rl.add( new CoordinateReaderLocus(basedir) );
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rl.add( new CoordinateReaderOrux(basedir) );
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// eventually add standard-sd
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File standardbase = Environment.getExternalStorageDirectory();
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if ( standardbase != null )
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{
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String base2 = standardbase.getAbsolutePath();
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if ( !base2.equals( basedir ) )
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{
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rl.add( new CoordinateReaderOsmAnd(base2) );
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rl.add( new CoordinateReaderLocus(base2) );
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rl.add( new CoordinateReaderOrux(base2) );
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}
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}
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long tmax = 0;
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for( CoordinateReader r : rl )
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{
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long t = r.getTimeStamp();
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if ( t > tmax )
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{
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tmax = t;
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cor = r;
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}
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}
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if ( cor == null )
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{
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cor = new CoordinateReaderNone();
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}
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cor.readFromTo();
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return cor;
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}
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}
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