1 files changed, 69 insertions, 0 deletions
diff --git a/src/main/java/org/geojson/jackson/LngLatAltDeserializer.java b/src/main/java/org/geojson/jackson/LngLatAltDeserializer.java
new file mode 100644
index 0000000..ff888c6
--- /dev/null
+++ b/src/main/java/org/geojson/jackson/LngLatAltDeserializer.java
@@ -0,0 +1,69 @@
+package org.geojson.jackson;
+
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.core.JsonToken;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.JsonDeserializer;
+import org.geojson.LngLatAlt;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+public class LngLatAltDeserializer extends JsonDeserializer<LngLatAlt> {
+
+    @Override
+    public LngLatAlt deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException {
+        if (jp.isExpectedStartArrayToken()) {
+            return deserializeArray(jp, ctxt);
+        }
+        throw ctxt.mappingException(LngLatAlt.class);
+    }
+
+    protected LngLatAlt deserializeArray(JsonParser jp, DeserializationContext ctxt) throws IOException {
+        LngLatAlt node = new LngLatAlt();
+        node.setLongitude(extractDouble(jp, ctxt, false));
+        node.setLatitude(extractDouble(jp, ctxt, false));
+        node.setAltitude(extractDouble(jp, ctxt, true));
+        List<Double> additionalElementsList = new ArrayList<Double>();
+        while (jp.hasCurrentToken() && jp.getCurrentToken() != JsonToken.END_ARRAY) {
+            double element = extractDouble(jp, ctxt, true);
+            if (!Double.isNaN(element)) {
+                additionalElementsList.add(element);
+            }
+        }
+        double[] additionalElements = new double[additionalElementsList.size()];
+        for (int i = 0; i < additionalElements.length; i++) {
+            additionalElements[i] = additionalElementsList.get(i);
+        }
+        node.setAdditionalElements(additionalElements);
+        return node;
+    }
+
+    private double extractDouble(JsonParser jp, DeserializationContext ctxt, boolean optional) throws IOException {
+        JsonToken token = jp.nextToken();
+        if (token == null) {
+            if (optional)
+                return Double.NaN;
+            else
+                throw ctxt.mappingException("Unexpected end-of-input when binding data into LngLatAlt");
+        } else {
+            switch (token) {
+                case END_ARRAY:
+                    if (optional)
+                        return Double.NaN;
+                    else
+                        throw ctxt.mappingException("Unexpected end-of-input when binding data into LngLatAlt");
+                case VALUE_NUMBER_FLOAT:
+                    return jp.getDoubleValue();
+                case VALUE_NUMBER_INT:
+                    return jp.getLongValue();
+                case VALUE_STRING:
+                    return jp.getValueAsDouble();
+                default:
+                    throw ctxt.mappingException(
+                            "Unexpected token (" + token.name() + ") when binding data into LngLatAlt");
+            }
+        }
+    }
+}