From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Wed, 11 May 2016 00:33:00 +0000 (-0400)
Subject: Fix: Java agent should use LTTNG_HOME
X-Git-Tag: v2.8.0~23
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=abe7b884875a0826d356db59f69b15a96384c7f2;p=lttng-ust.git

Fix: Java agent should use LTTNG_HOME

Both in UST C/C++ support and Python agent, LTTNG_HOME can be used to
override HOME for lttng-ust. Ensure the Java agent has the same
behavior.

Fixes: #881

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/liblttng-ust-java-agent/java/lttng-ust-agent-common/org/lttng/ust/agent/client/LttngTcpSessiondClient.java b/liblttng-ust-java-agent/java/lttng-ust-agent-common/org/lttng/ust/agent/client/LttngTcpSessiondClient.java
index 6177feac..e9b52f1d 100644
--- a/liblttng-ust-java-agent/java/lttng-ust-agent-common/org/lttng/ust/agent/client/LttngTcpSessiondClient.java
+++ b/liblttng-ust-java-agent/java/lttng-ust-agent-common/org/lttng/ust/agent/client/LttngTcpSessiondClient.java
@@ -179,7 +179,16 @@ public class LttngTcpSessiondClient implements Runnable {
 	}
 
 	private static String getHomePath() {
-		return System.getProperty("user.home");
+		/*
+		 * The environment variable LTTNG_HOME overrides HOME if
+		 * defined.
+		 */
+		String homePath = System.getenv("LTTNG_HOME");
+
+		if (homePath == null) {
+			homePath = System.getProperty("user.home");
+		}
+		return homePath;
 	}
 
 	/**