X-Git-Url: https://git.nmode.ca/signal-cli/blobdiff_plain/701328b8c26d6ad4f98cf8213dd57e4b06aa1281..35c72f692f13b12594ecdbe8f59f31d3b396d356:/src/main/java/org/asamk/signal/util/Util.java

diff --git a/src/main/java/org/asamk/signal/util/Util.java b/src/main/java/org/asamk/signal/util/Util.java
index eec7d2f7..93a595d1 100644
--- a/src/main/java/org/asamk/signal/util/Util.java
+++ b/src/main/java/org/asamk/signal/util/Util.java
@@ -1,5 +1,8 @@
 package org.asamk.signal.util;
 
+import com.fasterxml.jackson.databind.JsonNode;
+
+import java.io.InvalidObjectException;
 import java.io.UnsupportedEncodingException;
 import java.net.URLDecoder;
 import java.util.HashMap;
@@ -53,4 +56,13 @@ public class Util {
 
         return buf.toString();
     }
+
+    public static JsonNode getNotNullNode(JsonNode parent, String name) throws InvalidObjectException {
+        JsonNode node = parent.get(name);
+        if (node == null) {
+            throw new InvalidObjectException(String.format("Incorrect file format: expected parameter %s not found ", name));
+        }
+
+        return node;
+    }
 }