From d88d26418edb5bca31ad4c5caa5d9274f7fac10d Mon Sep 17 00:00:00 2001
From: Xavier Fournet <xavier.fournet@gmail.com>
Date: Thu, 6 Sep 2012 16:47:43 +0200
Subject: [PATCH] [IDEA-91145] Add methods to find Maven root projects

---
 .../idea/maven/project/MavenProjectsTree.java | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/plugins/maven/src/main/java/org/jetbrains/idea/maven/project/MavenProjectsTree.java b/plugins/maven/src/main/java/org/jetbrains/idea/maven/project/MavenProjectsTree.java
index 1c92e44d2432..a6d1d74eb6af 100644
--- a/plugins/maven/src/main/java/org/jetbrains/idea/maven/project/MavenProjectsTree.java
+++ b/plugins/maven/src/main/java/org/jetbrains/idea/maven/project/MavenProjectsTree.java
@@ -918,6 +918,33 @@ public class MavenProjectsTree {
     }
   }
 
+  public MavenProject findRootProject(@NotNull MavenProject project) {
+    readLock();
+    try {
+      MavenProject rootProject = project;
+      while (true) {
+        MavenProject aggregator = myModuleToAggregatorMapping.get(project);
+        if (aggregator == null) {
+          return rootProject;
+        }
+        rootProject = aggregator;
+      }
+    }
+    finally {
+      readUnlock();
+    }
+  }
+
+  public boolean isRootProject(@NotNull MavenProject project) {
+    readLock();
+    try {
+      return myModuleToAggregatorMapping.get(project) == null;
+    }
+    finally {
+      readUnlock();
+    }
+  }
+
   public List<MavenProject> getModules(MavenProject aggregator) {
     readLock();
     try {