1/ Support nested message and repeated fields in statsd.
2/ Filter gauge fields by FieldMatcher.
3/ Wire up wakelock attribution chain.
4/ e2e test: wakelock duration metric with aggregated predicate dimensions.
5/ e2e test: count metric with multiple metric condition links for 2 predicates and 1 non-sliced predicate.
Test: statsd unit test passed.
Change-Id: I89db31cb068184a54e0a892fad710966d3127bc9
diff --git a/cmds/statsd/src/stats_log_util.h b/cmds/statsd/src/stats_log_util.h
new file mode 100644
index 0000000..1f81860
--- /dev/null
+++ b/cmds/statsd/src/stats_log_util.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2017 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.
+ */
+
+#pragma once
+
+#include <android/util/ProtoOutputStream.h>
+#include "frameworks/base/cmds/statsd/src/stats_log.pb.h"
+#include "field_util.h"
+
+namespace android {
+namespace os {
+namespace statsd {
+
+// Helper function to write DimensionsValue proto to ProtoOutputStream.
+void writeDimensionsValueProtoToStream(
+ const DimensionsValue& fieldValue, util::ProtoOutputStream* protoOutput);
+
+// Helper function to write Field proto to ProtoOutputStream.
+void writeFieldProtoToStream(
+ const Field& field, util::ProtoOutputStream* protoOutput);
+
+// Helper function to construct the field value tree and write to ProtoOutputStream
+void writeFieldValueTreeToStream(const FieldValueMap &fieldValueMap,
+ util::ProtoOutputStream* protoOutput);
+
+} // namespace statsd
+} // namespace os
+} // namespace android
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