1 files changed, 42 insertions, 0 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/buildeventstream/NullConfiguration.java b/src/main/java/com/google/devtools/build/lib/buildeventstream/NullConfiguration.java
new file mode 100644
index 0000000000..a95e5a3d72
--- /dev/null
+++ b/src/main/java/com/google/devtools/build/lib/buildeventstream/NullConfiguration.java
@@ -0,0 +1,42 @@
+// Copyright 2017 The Bazel Authors. All rights reserved.
+//
+// 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.devtools.build.lib.buildeventstream;
+
+import com.google.common.collect.ImmutableList;
+import java.util.Collection;
+
+/**
+ * {@link BuildEvent} presenting the configuration in the build event protocol
+ * that internally is just a null pointer.
+ */
+public class NullConfiguration implements BuildEvent {
+
+  @Override
+  public BuildEventId getEventId() {
+    return BuildEventId.nullConfigurationId();
+  }
+
+  @Override
+  public Collection<BuildEventId> getChildrenEvents() {
+    return ImmutableList.of();
+  }
+
+  @Override
+  public BuildEventStreamProtos.BuildEvent asStreamProto(BuildEventConverters converters) {
+    return GenericBuildEvent.protoChaining(this)
+        .setConfiguration(BuildEventStreamProtos.Configuration.getDefaultInstance())
+        .build();
+  }
+}