From bd01cb87309bcc4a4739b63a6d7548ca1b25910e Mon Sep 17 00:00:00 2001
From: Craig Raw <craigraw@gmail.com>
Date: Thu, 14 Jul 2022 09:55:46 +0200
Subject: [PATCH] add method to warm the pubkey cache

---
 .../java/com/sparrowwallet/drongo/wallet/Wallet.java  | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/main/java/com/sparrowwallet/drongo/wallet/Wallet.java b/src/main/java/com/sparrowwallet/drongo/wallet/Wallet.java
index d69755f..a034dce 100644
--- a/src/main/java/com/sparrowwallet/drongo/wallet/Wallet.java
+++ b/src/main/java/com/sparrowwallet/drongo/wallet/Wallet.java
@@ -740,6 +740,17 @@ public class Wallet extends Persistable implements Comparable<Wallet> {
         }
     }
 
+    public void derivePublicKeys() {
+        for(KeyPurpose keyPurpose : KeyPurpose.DEFAULT_PURPOSES) {
+            WalletNode purposeNode = getNode(keyPurpose);
+            for(WalletNode addressNode : purposeNode.getChildren()) {
+                for(Keystore keystore : getKeystores()) {
+                    keystore.getPubKey(addressNode);
+                }
+            }
+        }
+    }
+
     public boolean isWalletTxo(TransactionInput txInput) {
         return getWalletTxos().keySet().stream().anyMatch(ref -> ref.getHash().equals(txInput.getOutpoint().getHash()) && ref.getIndex() == txInput.getOutpoint().getIndex());
     }