Nano protobufs.

Like micro protobufs except:

- No setter/getter/hazzer functions.
- Has state is not available. Outputs all fields != their default.
- CodedInputStream can only take byte[] (not InputStream).
- Repeated fields are in arrays, not ArrayList or Vector.
- Unset messages/groups are null, not "defaultInstance()".
- Required fields are always serialized.

To use:

- Link libprotobuf-java-2.3.0-nano runtime.
- Use LOCAL_PROTOC_OPTIMIZE_TYPE := nano

Change-Id: I7429015b3c5f7f38b7be01eb2d4927f7a9999c80

Author: ukirazci

Android.mk

@@ -106,6 +106,15 @@ COMPILER_SRC_FILES :=  \
     src/google/protobuf/compiler/javamicro/javamicro_message.cc \
     src/google/protobuf/compiler/javamicro/javamicro_message_field.cc \
     src/google/protobuf/compiler/javamicro/javamicro_primitive_field.cc \
+    src/google/protobuf/compiler/javanano/javanano_enum.cc \
+    src/google/protobuf/compiler/javanano/javanano_enum_field.cc \
+    src/google/protobuf/compiler/javanano/javanano_field.cc \
+    src/google/protobuf/compiler/javanano/javanano_file.cc \
+    src/google/protobuf/compiler/javanano/javanano_generator.cc \
+    src/google/protobuf/compiler/javanano/javanano_helpers.cc \
+    src/google/protobuf/compiler/javanano/javanano_message.cc \
+    src/google/protobuf/compiler/javanano/javanano_message_field.cc \
+    src/google/protobuf/compiler/javanano/javanano_primitive_field.cc \
     src/google/protobuf/compiler/python/python_generator.cc \
     src/google/protobuf/io/coded_stream.cc \
     src/google/protobuf/io/gzip_stream.cc \
@@ -121,6 +130,29 @@ COMPILER_SRC_FILES :=  \
     src/google/protobuf/stubs/strutil.cc \
     src/google/protobuf/stubs/substitute.cc
 
+# Java nano library (for device-side users)
+# =======================================================
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := libprotobuf-java-2.3.0-nano
+LOCAL_MODULE_TAGS := optional
+LOCAL_SDK_VERSION := 8
+
+LOCAL_SRC_FILES := $(call all-java-files-under, java/src/main/java/com/google/protobuf/nano)
+
+include $(BUILD_STATIC_JAVA_LIBRARY)
+
+# Java nano library (for host-side users)
+# =======================================================
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := host-libprotobuf-java-2.3.0-nano
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_SRC_FILES := $(call all-java-files-under, java/src/main/java/com/google/protobuf/nano)
+
+include $(BUILD_HOST_JAVA_LIBRARY)
+
 # Java micro library (for device-side users)
 # =======================================================
 include $(CLEAR_VARS)