Remove Guava usage from ContentTypes

1 files changed, 10 insertions, 0 deletions

diff --git a/src/main/java/org/zwobble/mammoth/internal/util/Paths.java b/src/main/java/org/zwobble/mammoth/internal/util/Paths.java
new file mode 100644
index 0000000..7448905
--- /dev/null
+++ b/src/main/java/org/zwobble/mammoth/internal/util/Paths.java
@@ -0,0 +1,10 @@
+package org.zwobble.mammoth.internal.util;
+
+public class Paths {
+    private Paths() {}
+
+    public static String getExtension(String path) {
+        int dotIndex = path.lastIndexOf('.');
+        return dotIndex == -1 ? "" : path.substring(dotIndex + 1);
+    }
+}