From 30eb1f80431ef30dee21107fac077a68496ede5b Mon Sep 17 00:00:00 2001
From: Mike Hearn <hearn@google.com>
Date: Fri, 12 Apr 2013 15:28:46 +0200
Subject: [PATCH] DownloadListener: don't print redundant noise after catching
 up with the chain.

---
 .../com/google/bitcoin/core/DownloadListener.java   | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/core/src/main/java/com/google/bitcoin/core/DownloadListener.java b/core/src/main/java/com/google/bitcoin/core/DownloadListener.java
index b7cc9e1e..bd8a9728 100644
--- a/core/src/main/java/com/google/bitcoin/core/DownloadListener.java
+++ b/core/src/main/java/com/google/bitcoin/core/DownloadListener.java
@@ -29,6 +29,7 @@ public class DownloadListener extends AbstractPeerEventListener {
     private int originalBlocksLeft = -1;
     private int lastPercent = 0;
     private Semaphore done = new Semaphore(0);
+    private boolean caughtUp = false;
 
     @Override
     public void onChainDownloadStarted(Peer peer, int blocksLeft) {
@@ -42,7 +43,11 @@ public class DownloadListener extends AbstractPeerEventListener {
 
     @Override
     public void onBlocksDownloaded(Peer peer, Block block, int blocksLeft) {
+        if (caughtUp)
+            return;
+
         if (blocksLeft == 0) {
+            caughtUp = true;
             doneDownload();
             done.release();
         }
@@ -74,15 +79,15 @@ public class DownloadListener extends AbstractPeerEventListener {
      * @param blocks the number of blocks to download, estimated
      */
     protected void startDownload(int blocks) {
-        System.out.println("Downloading block chain of size " + blocks + ". " +
-                (blocks > 1000 ? "This may take a while." : ""));
+        if (blocks > 0)
+            System.out.println("Downloading block chain of size " + blocks + ". " +
+                    (blocks > 1000 ? "This may take a while." : ""));
     }
 
     /**
      * Called when we are done downloading the block chain.
      */
     protected void doneDownload() {
-        System.out.println("Done downloading block chain");
     }
 
     /**
@@ -91,4 +96,4 @@ public class DownloadListener extends AbstractPeerEventListener {
     public void await() throws InterruptedException {
         done.acquire();
     }
-}
\ No newline at end of file
+}