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worldedit-core/src/main/java/com/sk89q/worldedit/util/gson/GsonUtil.java

@@ -0,0 +1,44 @@
+/*
+ * WorldEdit, a Minecraft world manipulation toolkit
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.sk89q.worldedit.util.gson;
+
+import com.google.gson.GsonBuilder;
+import com.sk89q.worldedit.Vector;
+
+/**
+ * Utility methods for Google's GSON library.
+ */
+public final class GsonUtil {
+
+    private GsonUtil() {
+    }
+
+    /**
+     * Create a standard {@link GsonBuilder} for WorldEdit.
+     *
+     * @return a builder
+     */
+    public static GsonBuilder createBuilder() {
+        GsonBuilder gsonBuilder = new GsonBuilder();
+        gsonBuilder.registerTypeAdapter(Vector.class, new VectorAdapter());
+        return gsonBuilder;
+    }
+
+}

worldedit-core/src/main/java/com/sk89q/worldedit/util/gson/VectorAdapter.java

@@ -0,0 +1,49 @@
+/*
+ * WorldEdit, a Minecraft world manipulation toolkit
+ * Copyright (C) sk89q <http://www.sk89q.com>
+ * Copyright (C) WorldEdit team and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.sk89q.worldedit.util.gson;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonDeserializationContext;
+import com.google.gson.JsonDeserializer;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonParseException;
+import com.sk89q.worldedit.Vector;
+
+import java.lang.reflect.Type;
+
+/**
+ * Deserializes {@code Vector}s for GSON.
+ */
+public class VectorAdapter implements JsonDeserializer<Vector> {
+
+    @Override
+    public Vector deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
+        JsonArray jsonArray = json.getAsJsonArray();
+        if (jsonArray.size() != 3) {
+            throw new JsonParseException("Expected array of 3 length for Vector");
+        }
+
+        double x = jsonArray.get(0).getAsDouble();
+        double y = jsonArray.get(1).getAsDouble();
+        double z = jsonArray.get(2).getAsDouble();
+
+        return new Vector(x, y, z);
+    }
+}