From 6e2caf0d9ffd11b5cd425d7af153b653da95ab8d Mon Sep 17 00:00:00 2001
From: Peter Wu <peter@lekensteyn.nl>
Date: Sat, 3 May 2014 17:54:16 +0200
Subject: DataWriter: first read, then open for writing

Prevents occasional "Unexpected end of ZLIB input stream" errors.
---
 src/io/DataWriter.java | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/io/DataWriter.java b/src/io/DataWriter.java
index b4cf4d5..578c3a7 100644
--- a/src/io/DataWriter.java
+++ b/src/io/DataWriter.java
@@ -70,10 +70,11 @@ public class DataWriter implements ResultListener, Closeable {
      */
     public void open() throws IOException {
         try {
-            m_profile.open();
-            m_tweet.open();
             readIds(m_profileIdSet, m_profile);
             readIds(m_tweetIdSet, m_tweet);
+            // open after reading input to prevent simultaneous r/w access
+            m_profile.open();
+            m_tweet.open();
         } catch (IOException ex) {
             m_profile.close();
             m_tweet.close();
-- 
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