1 files changed, 77 insertions, 0 deletions
diff --git a/java/com/google/gerrit/httpd/RequestContextFilter.java b/java/com/google/gerrit/httpd/RequestContextFilter.java
new file mode 100644
index 0000000000..6e027969fa
--- /dev/null
+++ b/java/com/google/gerrit/httpd/RequestContextFilter.java
@@ -0,0 +1,77 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gerrit.httpd;
+
+import com.google.gerrit.server.RequestCleanup;
+import com.google.gerrit.server.util.RequestContext;
+import com.google.gerrit.server.util.ThreadLocalRequestContext;
+import com.google.inject.Inject;
+import com.google.inject.Module;
+import com.google.inject.Provider;
+import com.google.inject.Singleton;
+import com.google.inject.servlet.ServletModule;
+import java.io.IOException;
+import javax.servlet.Filter;
+import javax.servlet.FilterChain;
+import javax.servlet.FilterConfig;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
+
+/** Executes any pending {@link RequestCleanup} at the end of a request. */
+@Singleton
+public class RequestContextFilter implements Filter {
+  public static Module module() {
+    return new ServletModule() {
+      @Override
+      protected void configureServlets() {
+        filter("/*").through(RequestContextFilter.class);
+      }
+    };
+  }
+
+  private final Provider<RequestCleanup> cleanup;
+  private final Provider<HttpRequestContext> requestContext;
+  private final ThreadLocalRequestContext local;
+
+  @Inject
+  RequestContextFilter(
+      Provider<RequestCleanup> r, Provider<HttpRequestContext> c, ThreadLocalRequestContext l) {
+    cleanup = r;
+    requestContext = c;
+    local = l;
+  }
+
+  @Override
+  public void init(FilterConfig filterConfig) {}
+
+  @Override
+  public void destroy() {}
+
+  @Override
+  public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
+      throws IOException, ServletException {
+    RequestContext old = local.setContext(requestContext.get());
+    try {
+      try {
+        chain.doFilter(request, response);
+      } finally {
+        cleanup.get().run();
+      }
+    } finally {
+      local.setContext(old);
+    }
+  }
+}