feat: store WheelchairAttributes in EncodedValues

WheelchairAttributes are stored in EncodedValues instead of GraphStorage:
- implement parsers for all attributes
- read WheelchairValues from EncodedValues

Author: jarinox

ors-engine/src/main/java/com/graphhopper/routing/ev/WheelchairIncline.java

@@ -0,0 +1,19 @@
+package com.graphhopper.routing.ev;
+
+/**
+ * EncodedValue for wheelchair incline attribute.
+ * Stores incline percentage as a signed integer value (range: -50 to +50).
+ */
+public class WheelchairIncline {
+    public static final String KEY = "wheelchair_incline";
+
+    private WheelchairIncline() {
+        // Private constructor to prevent instantiation
+    }
+
+    public static IntEncodedValue create() {
+        // 6 bits signed to store 0% to +50% incline
+        return new UnsignedIntEncodedValue(KEY, 6, false) {
+        };
+    }
+}

ors-engine/src/main/java/com/graphhopper/routing/ev/WheelchairKerb.java

@@ -0,0 +1,19 @@
+package com.graphhopper.routing.ev;
+
+/**
+ * EncodedValue for wheelchair kerb/curb height attribute.
+ * Stores kerb height in centimeters as an unsigned integer value (range: 0-30cm).
+ */
+public class WheelchairKerb {
+    public static final String KEY = "wheelchair_kerb";
+
+    private WheelchairKerb() {
+        // Private constructor to prevent instantiation
+    }
+
+    public static IntEncodedValue create() {
+        // 6 bits unsigned to store 0-30cm kerb height
+        return new UnsignedIntEncodedValue(KEY, 6, false);
+    }
+}
+

ors-engine/src/main/java/com/graphhopper/routing/ev/WheelchairSide.java

@@ -0,0 +1,12 @@
+package com.graphhopper.routing.ev;
+
+import org.heigit.ors.routing.graphhopper.extensions.WheelchairAttributes;
+
+// Side of the sidewalk, if attached.
+public class WheelchairSide {
+    public static final String KEY = "wheelchair_side";
+
+    public static EnumEncodedValue<WheelchairAttributes.Side> create() {
+        return new EnumEncodedValue<>(KEY, WheelchairAttributes.Side.class);
+    }
+}

ors-engine/src/main/java/com/graphhopper/routing/ev/WheelchairSmoothness.java

@@ -0,0 +1,9 @@
+package com.graphhopper.routing.ev;
+
+public class WheelchairSmoothness {
+    public static final String KEY = "wheelchair_smoothness";
+
+    public static IntEncodedValue create() {
+        return new UnsignedIntEncodedValue(KEY, 4, false);
+    }
+}

ors-engine/src/main/java/com/graphhopper/routing/ev/WheelchairSuitable.java

@@ -0,0 +1,17 @@
+package com.graphhopper.routing.ev;
+
+/**
+ * EncodedValue for wheelchair suitable attribute.
+ */
+public class WheelchairSuitable {
+    public static final String KEY = "wheelchair_suitable";
+
+    private WheelchairSuitable() {
+        // Private constructor to prevent instantiation
+    }
+
+    public static SimpleBooleanEncodedValue create() {
+        return new SimpleBooleanEncodedValue(KEY);
+    }
+}
+

ors-engine/src/main/java/com/graphhopper/routing/ev/WheelchairSurface.java

@@ -0,0 +1,9 @@
+package com.graphhopper.routing.ev;
+
+public class WheelchairSurface {
+    public static final String KEY = "wheelchair_surface";
+
+    public static IntEncodedValue create() {
+        return new UnsignedIntEncodedValue(KEY, 5, false);
+    }
+}

ors-engine/src/main/java/com/graphhopper/routing/ev/WheelchairSurfaceQualityKnown.java

@@ -0,0 +1,13 @@
+package com.graphhopper.routing.ev;
+
+public class WheelchairSurfaceQualityKnown {
+    public static final String KEY = "wheelchair_surface_quality_known";
+
+    private WheelchairSurfaceQualityKnown() {
+        // Private constructor to prevent instantiation
+    }
+
+    public static SimpleBooleanEncodedValue create() {
+        return new SimpleBooleanEncodedValue(KEY, false);
+    }
+}

ors-engine/src/main/java/com/graphhopper/routing/ev/WheelchairTrackType.java

@@ -0,0 +1,9 @@
+package com.graphhopper.routing.ev;
+
+public class WheelchairTrackType {
+    public static final String KEY = "wheelchair_track_type";
+
+    public static IntEncodedValue create() {
+        return new UnsignedIntEncodedValue(KEY, 3, false);
+    }
+}

ors-engine/src/main/java/com/graphhopper/routing/ev/WheelchairWidth.java

@@ -0,0 +1,19 @@
+package com.graphhopper.routing.ev;
+
+/**
+ * EncodedValue for wheelchair width attribute.
+ * Stores width in centimeters as an unsigned integer value (range: 0-500cm).
+ */
+public class WheelchairWidth {
+    public static final String KEY = "wheelchair_width";
+
+    private WheelchairWidth() {
+        // Private constructor to prevent instantiation
+    }
+
+    public static IntEncodedValue create() {
+        // 9 bits unsigned to store 0-500cm (0-5 meters)
+        return new UnsignedIntEncodedValue(KEY, 9, false);
+    }
+}
+

ors-engine/src/main/java/org/heigit/ors/config/profile/BuildProperties.java

@@ -111,6 +111,7 @@ public void initExtStorages() {
                 case TOLLWAYS -> handleTollways();
                 case HILL_INDEX -> handleHillIndex();
                 case TRAIL_DIFFICULTY -> handleTrailDifficulty();
+                case WHEELCHAIR -> handleWheelchair();
                 default -> {
                     storage.initialize(extendedStorageName);
                     this.extStorages.put(key, storage);
@@ -226,6 +227,36 @@ private void handleTrailDifficulty() {
         }
     }
 
+    private void handleWheelchair() {
+        if (encodedValues.getWheelchairSurface() == null) {
+            encodedValues.setWheelchairSurface(true);
+        }
+        if (encodedValues.getWheelchairSmoothness() == null) {
+            encodedValues.setWheelchairSmoothness(true);
+        }
+        if (encodedValues.getWheelchairTrackType() == null) {
+            encodedValues.setWheelchairTrackType(true);
+        }
+        if (encodedValues.getWheelchairIncline() == null) {
+            encodedValues.setWheelchairIncline(true);
+        }
+        if (encodedValues.getWheelchairWidth() == null) {
+            encodedValues.setWheelchairWidth(true);
+        }
+        if (encodedValues.getWheelchairKerb() == null) {
+            encodedValues.setWheelchairKerb(true);
+        }
+        if(encodedValues.getWheelchairSuitable() == null) {
+            encodedValues.setWheelchairSuitable(true);
+        }
+        if (encodedValues.getWheelchairSide() == null) {
+            encodedValues.setWheelchairSide(true);
+        }
+        if(encodedValues.getWheelchairSurfaceQualityKnown() == null) {
+            encodedValues.setWheelchairSurfaceQualityKnown(true);
+        }
+    }
+
     @JsonIgnore
     public String getEncoderOptionsString() {
         if (encoderOptions == null) return "";