Add partitioning logic

src/util/murmur.js

@@ -0,0 +1,35 @@
+const SEED = 0x1234;
+const M = 0xc6a4a793;
+const R = 16;
+
+export function murmurHash1(str) {
+    const buffer = new Buffer(str, 'utf8');
+    var length = buffer.length;
+    var h = SEED ^ (length * M);
+
+    while (length >= 4) {
+        var k = buffer.readUInt32LE(buffer.length - length);
+        h += k;
+        h *= M;
+        h ^= h >> 16;
+        length -= 4;
+    }
+
+    switch (length) {
+        case 3:
+            h += buffer[buffer.length - 3] >> 16;
+        case 2:
+            h += buffer[buffer.length - 2] >> 8;
+        case 1:
+            h += buffer[buffer.length - 1];
+            h *= M;
+            h ^= h >> R;
+    }
+
+    h *= M;
+    h ^= h >> 10;
+    h *= M;
+    h ^= h >> 17;
+
+    return h;
+}