Configuration methods .getX (int/double/etc) now try to cast existing values where possible. This fixes BUKKIT-290

By: Nathan Adams <dinnerbone@dinnerbone.com>

paper-api/src/main/java/org/bukkit/util/NumberConversions.java

@@ -0,0 +1,92 @@
+package org.bukkit.util;
+
+/**
+ * Utils for casting number types to other number types
+ */
+public final class NumberConversions {
+    private NumberConversions() {}
+
+    public static int toInt(Object object) {
+        if (object instanceof Number) {
+            return ((Number)object).intValue();
+        } else {
+            int result = 0;
+
+            try {
+                result = Integer.valueOf((String)object);
+            } catch (Throwable ex) {}
+
+            return result;
+        }
+    }
+
+    public static float toFloat(Object object) {
+        if (object instanceof Number) {
+            return ((Number)object).floatValue();
+        } else {
+            float result = 0;
+
+            try {
+                result = Float.valueOf((String)object);
+            } catch (Throwable ex) {}
+
+            return result;
+        }
+    }
+
+    public static double toDouble(Object object) {
+        if (object instanceof Number) {
+            return ((Number)object).doubleValue();
+        } else {
+            double result = 0;
+
+            try {
+                result = Double.valueOf((String)object);
+            } catch (Throwable ex) {}
+
+            return result;
+        }
+    }
+
+    public static long toLong(Object object) {
+        if (object instanceof Number) {
+            return ((Number)object).longValue();
+        } else {
+            long result = 0;
+
+            try {
+                result = Long.valueOf((String)object);
+            } catch (Throwable ex) {}
+
+            return result;
+        }
+    }
+
+    public static short toShort(Object object) {
+        if (object instanceof Number) {
+            return ((Number)object).shortValue();
+        } else {
+            short result = 0;
+
+            try {
+                result = Short.valueOf((String)object);
+            } catch (Throwable ex) {}
+
+            return result;
+        }
+    }
+
+    public static byte toByte(Object object) {
+        if (object instanceof Number) {
+            return ((Number)object).byteValue();
+        } else {
+            byte result = 0;
+
+            try {
+                result = Byte.valueOf((String)object);
+            } catch (Throwable ex) {}
+
+            return result;
+        }
+    }
+}