fix out of scope exception on access hgcontext

scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/repository/HgContextProvider.java

@@ -30,12 +30,17 @@
  */
 
 
+
 package sonia.scm.repository;
 
 //~--- non-JDK imports --------------------------------------------------------
 
+import com.google.inject.Inject;
 import com.google.inject.Provider;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 /**
  *
  * @author Sebastian Sdorra
@@ -43,6 +48,14 @@ import com.google.inject.Provider;
 public class HgContextProvider implements Provider<HgContext>
 {
 
+  /**
+   * the logger for HgContextProvider
+   */
+  private static final Logger logger =
+    LoggerFactory.getLogger(HgContextProvider.class);
+
+  //~--- get methods ----------------------------------------------------------
+
   /**
    * Method description
    *
@@ -52,6 +65,20 @@ public class HgContextProvider implements Provider<HgContext>
   @Override
   public HgContext get()
   {
-    return new HgContext();
+    HgContext ctx = context;
+
+    if (ctx == null)
+    {
+      ctx = new HgContext();
+      logger.trace("context is null, we are probably out of request scope");
+    }
+
+    return ctx;
   }
+
+  //~--- fields ---------------------------------------------------------------
+
+  /** Field description */
+  @Inject(optional = true)
+  private HgContext context;
 }

scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/web/HgServletModule.java

@@ -40,6 +40,7 @@ import com.google.inject.servlet.ServletModule;
 import sonia.scm.installer.HgPackageReader;
 import sonia.scm.plugin.ext.Extension;
 import sonia.scm.repository.HgContext;
+import sonia.scm.repository.HgContextProvider;
 import sonia.scm.repository.HgHookManager;
 import sonia.scm.web.filter.BasicAuthenticationFilter;
 
@@ -66,7 +67,7 @@ public class HgServletModule extends ServletModule
   @Override
   protected void configureServlets()
   {
-    bind(HgContext.class);
+    bind(HgContext.class).toProvider(HgContextProvider.class);
     bind(HgHookManager.class);
     bind(HgPackageReader.class);