1 files changed, 22 insertions, 0 deletions
diff --git a/src/main/java/com/keuin/crosslink/util/HttpQuery.java b/src/main/java/com/keuin/crosslink/util/HttpQuery.java
new file mode 100644
index 0000000..af06e4d
--- /dev/null
+++ b/src/main/java/com/keuin/crosslink/util/HttpQuery.java
@@ -0,0 +1,22 @@
+package com.keuin.crosslink.util;
+
+import java.util.Collections;
+import java.util.Map;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+public class HttpQuery {
+    // Copied from https://stackoverflow.com/a/63976481 (modified)
+    public static Map<String, String> getParamMap(String query) {
+        // query is null if not provided (e.g. localhost/path )
+        // query is empty if '?' is supplied (e.g. localhost/path? )
+        if (query == null || query.isEmpty()) return Collections.emptyMap();
+
+        return Stream.of(query.split("&"))
+                .filter(s -> !s.isEmpty())
+                .map(kv -> kv.split("=", 2))
+                .collect(Collectors.toMap(
+                        x -> x[0],
+                        x -> ((x.length == 2) ? x[1] : "")));
+    }
+}