Bug 538432 - NoStackTrace in PerfCore.getPerfVersion

- expose getProject() method in PerfCore
- change getPerfVersion() in PerfCore to issue warning instead of
  error when perf is missing
- add check in initializeFrom() method in PerfOptionsTab to set
  the error message for the option page if perf is missing

Change-Id: Id920b9cf0e938a0ceef518ebc2f873fb8f2c36c2
Reviewed-on: https://git.eclipse.org/r/128400
Tested-by: CI Bot
Reviewed-by: Jeff Johnston <jjohnstn@redhat.com>
(cherry picked from commit d3b17fe579879895200a3beef65abdee04a7378b)
Reviewed-on: https://git.eclipse.org/r/128469

2 files changed, 13 insertions, 2 deletions

diff --git a/perf/org.eclipse.linuxtools.perf/src/org/eclipse/linuxtools/internal/perf/PerfCore.java b/perf/org.eclipse.linuxtools.perf/src/org/eclipse/linuxtools/internal/perf/PerfCore.java
index 5f21f87659..bc3e529af2 100644
--- a/perf/org.eclipse.linuxtools.perf/src/org/eclipse/linuxtools/internal/perf/PerfCore.java
+++ b/perf/org.eclipse.linuxtools.perf/src/org/eclipse/linuxtools/internal/perf/PerfCore.java
@@ -121,7 +121,7 @@ public class PerfCore {
 
     }
 
-    private static IProject getProject(ILaunchConfiguration config){
+    public static IProject getProject(ILaunchConfiguration config){
         if(config == null){
             return null;
         } else {
@@ -217,8 +217,12 @@ public class PerfCore {
         try {
             p = RuntimeProcessFactory.getFactory().exec(new String [] {PerfPlugin.PERF_COMMAND, "--version"}, project); //$NON-NLS-1$
         } catch (IOException e) {
-            logException(e);
+        	// Issue warning to avoid AERI reports whenever user is missing perf
+            Status status = new Status(IStatus.WARNING, PerfPlugin.PLUGIN_ID,
+                    e.getMessage());
+            PerfPlugin.getDefault().getLog().log(status);
         }
+
         if (p == null) {
             return null;
         }
diff --git a/perf/org.eclipse.linuxtools.perf/src/org/eclipse/linuxtools/internal/perf/launch/PerfOptionsTab.java b/perf/org.eclipse.linuxtools.perf/src/org/eclipse/linuxtools/internal/perf/launch/PerfOptionsTab.java
index 64483958fb..40f1d7ba1a 100644
--- a/perf/org.eclipse.linuxtools.perf/src/org/eclipse/linuxtools/internal/perf/launch/PerfOptionsTab.java
+++ b/perf/org.eclipse.linuxtools.perf/src/org/eclipse/linuxtools/internal/perf/launch/PerfOptionsTab.java
@@ -284,8 +284,15 @@ public class PerfOptionsTab extends AbstractLaunchConfigurationTab {
 
         // Keep track of the last configuration loaded
         lastConfig = config;
+
         PerfVersion perfVersion = PerfCore.getPerfVersion(config);
 
+        if (perfVersion == null) {
+        	setErrorMessage(Messages.PerfLaunchConfigDelegate_perf_not_found);
+        } else {
+        	setErrorMessage(null);
+        }
+
         try {
 
             if (perfVersion != null && multiplexEventsVersion.isNewer(perfVersion)) {