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package uk.me.parabola.mkgmap.osmstyle;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.regex.Pattern;
import uk.me.parabola.log.Logger;
import uk.me.parabola.mkgmap.general.LevelInfo;
import uk.me.parabola.mkgmap.reader.osm.FeatureKind;
import uk.me.parabola.mkgmap.reader.osm.GType;
import uk.me.parabola.mkgmap.scan.SyntaxException;
import uk.me.parabola.mkgmap.scan.TokType;
import uk.me.parabola.mkgmap.scan.Token;
import uk.me.parabola.mkgmap.scan.TokenScanner;
/**
* Read a type description from a style file.
*/
public class TypeReader
{
private static final Logger log =
Logger.
getLogger(TypeReader.
class);
private final FeatureKind kind
;
private final LevelInfo
[] levels
;
private static final Pattern HYPHEN_PATTERN =
Pattern.
compile("-");
public TypeReader
(FeatureKind kind, LevelInfo
[] levels
) {
this.
kind = kind
;
this.
levels = levels
;
}
public GType readType
(TokenScanner ts
){
return readType
(ts,
false,
false,
null);
}
public GType readType
(TokenScanner ts,
boolean performChecks,
boolean forRoutableMap,
Map<Integer,
List<Integer>> overlays
) {
// We should have a '[' to start with
Token t = ts.
nextToken();
if (t ==
null || t.
getType() == TokType.
EOF)
throw new SyntaxException
(ts,
"No garmin type information given");
if (!"[".
equals(t.
getValue())) {
throw new SyntaxException
(ts,
"No type definition");
}
ts.
skipSpace();
String type = ts.
nextValue();
if (!Character.
isDigit(type.
charAt(0)))
throw new SyntaxException
(ts,
"Garmin type number must be first. Saw '" + type +
'\'');
log.
debug("gtype", type
);
GType gt =
new GType
(kind, type
);
if (!GType.
checkType(gt.
getFeatureKind(), gt.
getType())) {
if (!performChecks
&& (kind
!= FeatureKind.
POLYLINE || overlays ==
null || overlays.
get(gt.
getType()) ==
null))
throw new SyntaxException
("invalid type " + type +
" for " + kind +
" in style file " + ts.
getFileName() +
", line " + ts.
getLinenumber());
}
while (!ts.
isEndOfFile()) {
ts.
skipSpace();
String w = ts.
nextValue();
if ("]".
equals(w
))
break;
if ("level".
equals(w
)) {
setLevel
(ts, gt
);
} else if ("resolution".
equals(w
)) {
setResolution
(ts, gt
);
} else if ("default_name".
equals(w
)) {
gt.
setDefaultName(nextValue
(ts
));
} else if ("road_class".
equals(w
)) {
gt.
setRoadClass(nextIntValue
(ts
));
} else if ("road_speed".
equals(w
)) {
gt.
setRoadSpeed(nextIntValue
(ts
));
} else if ("copy".
equals(w
)) {
// Reserved
} else if ("continue".
equals(w
)) {
gt.
setContinueSearch(true);
// By default no propagate of actions on continue
gt.
propagateActions(false);
} else if ("propagate".
equals(w
) ||
"with_actions".
equals(w
) ||
"withactions".
equals(w
)) {
gt.
propagateActions(true);
} else if ("no_propagate".
equals(w
)) {
gt.
propagateActions(false);
} else if ("oneway".
equals(w
)) {
// reserved
} else if ("access".
equals(w
)) {
// reserved
} else {
throw new SyntaxException
(ts,
"Unrecognised type command '" + w +
'\'');
}
}
gt.
fixLevels(levels
);
int maxResLevel0 = toResolution
(0);
if (gt.
getMaxResolution() > maxResLevel0
&& gt.
getMinResolution() > maxResLevel0
) {
String msg =
"Type " + GType.
formatType(gt.
getType()) +
" min-res:" + gt.
getMinResolution() +
" will not be written with level 0 at resolution " + maxResLevel0
+
" in style file " + ts.
getFileName() +
", line " + ts.
getLinenumber();
if (performChecks
) {
log.
error(msg
);
} else if (kind == FeatureKind.
POLYLINE && gt.
isRoad() && forRoutableMap
) {
log.
error(msg ,
"-> routing may not work");
}
}
if ("lines".
equals(ts.
getFileName())){
if(gt.
getRoadClass() < 0 || gt.
getRoadClass() > 4)
log.
error("road class value", gt.
getRoadClass(),
"not in the range 0-4 in style file lines, line " + ts.
getLinenumber());
if(gt.
getRoadSpeed() < 0 || gt.
getRoadSpeed() > 7)
log.
error("road speed value", gt.
getRoadSpeed(),
"not in the range 0-7 in style file lines, line " + ts.
getLinenumber());
}
if (performChecks
){
boolean fromOverlays =
false;
List<Integer> usedTypes =
null;
if (gt.
getMaxResolution() < levels
[0].
getBits() || gt.
getMaxResolution() > 24){
System.
out.
println("Warning: Object with max resolution of " + gt.
getMaxResolution() +
" is ignored. Check levels option and style file "+ ts.
getFileName() +
", line " + ts.
getLinenumber());
} else if (gt.
getMinResolution() > 24) {
System.
out.
println("Warning: Object with min resolution of " + gt.
getMinResolution() +
" is ignored. Check levels option and style file "+ ts.
getFileName() +
", line " + ts.
getLinenumber());
}
if (overlays
!=
null && kind == FeatureKind.
POLYLINE){
usedTypes = overlays.
get(gt.
getType());
if (usedTypes
!=
null)
fromOverlays =
true;
}
if (usedTypes ==
null)
usedTypes =
Arrays.
asList(gt.
getType());
boolean foundRoutableType =
false;
for (int i =
0; i
< usedTypes.
size(); i++
){
int usedType = usedTypes.
get(i
);
String typeOverlaidMsg =
". Type is overlaid with " + GType.
formatType(usedType
);
if (!GType.
checkType(kind, usedType
)) {
String msg =
"Warning: invalid type " + type +
" for " + kind +
" in style file " + ts.
getFileName() +
", line " + ts.
getLinenumber();
if (fromOverlays
)
msg += typeOverlaidMsg
;
System.
out.
println(msg
);
}
if (kind == FeatureKind.
POLYLINE && gt.
getMinLevel() ==
0 && gt.
getMaxLevel() >=
0){
if (GType.
isSpecialRoutableLineType(usedType
)){
if (!gt.
hasRoadAttribute()) {
String msg =
"Warning: routable type " + type +
" is used for non-routable line with level 0. This may break routing. Style file "+ ts.
getFileName() +
", line " + ts.
getLinenumber();
if (fromOverlays
)
msg += typeOverlaidMsg
;
System.
out.
println(msg
);
}
else if (i
> 0){
System.
out.
println("Warning: routable type " + type +
" is used for non-routable line with level 0. " +
"This may break routing. Style file " + ts.
getFileName() +
", line " + ts.
getLinenumber() +
typeOverlaidMsg +
" which is used for adding the non-routable copy of the way.");
}
}
}
if (kind == FeatureKind.
POLYLINE && GType.
isRoutableLineType(usedType
)){
foundRoutableType =
true;
}
}
if (gt.
hasRoadAttribute() && !foundRoutableType
&& gt.
getMinLevel() ==
0 && gt.
getMaxLevel() >=
0){
String msg =
"Warning: non-routable type " + type +
" is used in combination with road_class/road_speed. Line will not be routable. Style file "+ ts.
getFileName() +
", line " + ts.
getLinenumber();
if (fromOverlays
)
msg +=
". Type is overlaid, but not with a routable type";
System.
out.
println(msg
);
}
}
return gt
;
}
private static int nextIntValue
(TokenScanner ts
) {
if (ts.
checkToken("="))
ts.
nextToken();
try {
return ts.
nextInt();
} catch (NumberFormatException e
) {
throw new SyntaxException
(ts,
"Expecting numeric value");
}
}
/**
* Get the value in a 'name=value' pair.
*/
private static String nextValue
(TokenScanner ts
) {
if (ts.
checkToken("="))
ts.
nextToken();
return ts.
nextWord();
}
/**
* A resolution can be just a single number, in which case that is the
* min resolution and the max defaults to 24. Or a min to max range.
*/
private static void setResolution
(TokenScanner ts, GType gt
) {
String str = ts.
nextWord();
log.
debug("res word value", str
);
try {
if (str.
indexOf('-') >=
0) {
String[] minmax = HYPHEN_PATTERN.
split(str,
2);
int val1 =
Integer.
parseInt(minmax
[0]);
int val2 =
Integer.
parseInt(minmax
[1]);
if (val1
> val2
) {
// Previously there was a bug where the order was reversed, so we swap the numbers if they are
// the wrong way round.
int h = val1
;
val1 = val2
;
val2 = h
;
}
gt.
setMinResolution(val1
);
gt.
setMaxResolution(val2
);
} else {
gt.
setMinResolution(Integer.
parseInt(str
));
}
} catch (NumberFormatException e
) {
throw new SyntaxException
(ts,
"Invalid value for resolution: '" + str +
'\'');
}
}
/**
* Read a level spec, which is either the max level or a min to max range.
* This is immediately converted to resolution(s).
*/
private void setLevel
(TokenScanner ts, GType gt
) {
String str = ts.
nextWord();
try {
if (str.
indexOf('-') >=
0) {
String[] minmax = HYPHEN_PATTERN.
split(str,
2);
int val1 = toResolution
(Integer.
parseInt(minmax
[0]));
int val2 = toResolution
(Integer.
parseInt(minmax
[1]));
if (val1
> val2
) {
// Previously there was a bug where the order was reversed, so we swap the numbers if they are
// the wrong way round.
int h = val1
;
val1 = val2
;
val2 = h
;
}
gt.
setMinResolution(val1
);
gt.
setMaxResolution(val2
);
} else {
gt.
setMinResolution(toResolution
(Integer.
parseInt(str
)));
}
} catch (NumberFormatException e
) {
throw new SyntaxException
(ts,
"Invalid value for level: '" + str +
'\'');
}
}
private int toResolution
(int level
) {
int max = levels.
length -
1;
if (level
> max
)
throw new SyntaxException
("Level number too large, max=" + max
);
return levels
[max - level
].
getBits();
}
}