From 055dbeb0b284573c1c78fe7927d55413036cbdbd Mon Sep 17 00:00:00 2001
From: djKooks <inylove82@gmail.com>
Date: Fri, 28 May 2021 08:29:34 +0900
Subject: [PATCH] Add Extend and FromIterator impls to ClientConfig

Fix #366.
---
 .gitignore    |    1 +
 Cargo.lock    | 1576 -------------------------------------------------
 src/config.rs |   38 ++
 3 files changed, 39 insertions(+), 1576 deletions(-)
 delete mode 100644 Cargo.lock

diff --git a/.gitignore b/.gitignore
index 4a1ac7035..9e2bf22bc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 target
 src/*.bk
 .idea
+Cargo.lock
diff --git a/Cargo.lock b/Cargo.lock
deleted file mode 100644
index 1153c6d35..000000000
--- a/Cargo.lock
+++ /dev/null
@@ -1,1576 +0,0 @@
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diff --git a/src/config.rs b/src/config.rs
index 2d173249c..2375f888b 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -24,6 +24,7 @@
 
 use std::collections::HashMap;
 use std::ffi::{CStr, CString};
+use std::iter::FromIterator;
 use std::mem;
 use std::os::raw::c_char;
 use std::ptr;
@@ -273,6 +274,26 @@ impl ClientConfig {
     }
 }
 
+impl FromIterator<(String, String)> for ClientConfig {
+    fn from_iter<I>(iter: I) -> ClientConfig
+    where
+        I: IntoIterator<Item = (String, String)>,
+    {
+        let mut config = ClientConfig::new();
+        config.extend(iter);
+        config
+    }
+}
+
+impl Extend<(String, String)> for ClientConfig {
+    fn extend<I>(&mut self, iter: I)
+    where
+        I: IntoIterator<Item = (String, String)>,
+    {
+        self.conf_map.extend(iter)
+    }
+}
+
 /// Return the log level
 fn log_level_from_global_config() -> RDKafkaLogLevel {
     if log_enabled!(target: "librdkafka", Level::Debug) {
@@ -298,3 +319,20 @@ pub trait FromClientConfigAndContext<C: ClientContext>: Sized {
     /// Creates a client from a client configuration and a client context.
     fn from_config_and_context(_: &ClientConfig, _: C) -> KafkaResult<Self>;
 }
+
+#[cfg(test)]
+mod tests {
+    use super::ClientConfig;
+
+    #[test]
+    fn test_client_config_set_map() {
+        let mut config: ClientConfig = vec![("a".into(), "1".into()), ("b".into(), "1".into())]
+            .into_iter()
+            .collect();
+        config.extend([("b".into(), "2".into()), ("c".into(), "3".into())]);
+
+        assert_eq!(config.get("a").unwrap(), "1");
+        assert_eq!(config.get("b").unwrap(), "2");
+        assert_eq!(config.get("c").unwrap(), "3");
+    }
+}