S2GRAPH-4: add apache license header using rat

Project: http://git-wip-us.apache.org/repos/asf/incubator-s2graph/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-s2graph/commit/8c04784a
Tree: http://git-wip-us.apache.org/repos/asf/incubator-s2graph/tree/8c04784a
Diff: http://git-wip-us.apache.org/repos/asf/incubator-s2graph/diff/8c04784a

Branch: refs/heads/S2GRAPH-4
Commit: 8c04784a6ae42a85ed3b7bd4d2dcd37b48d40f5f
Parents: d24176a
Author: SteamShon <[email protected]>
Authored: Mon Dec 28 12:25:16 2015 +0900
Committer: SteamShon <[email protected]>
Committed: Mon Dec 28 12:25:16 2015 +0900

----------------------------------------------------------------------
 app/Bootstrap.scala                             | 19 ++++++++++++++++++
 app/actors/QueueActor.scala                     | 19 ++++++++++++++++++
 app/config/Config.scala                         | 19 ++++++++++++++++++
 app/config/CounterConfig.scala                  | 19 ++++++++++++++++++
 app/controllers/AdminController.scala           | 19 ++++++++++++++++++
 app/controllers/ApplicationController.scala     | 19 ++++++++++++++++++
 app/controllers/CounterController.scala         | 19 ++++++++++++++++++
 app/controllers/EdgeController.scala            | 19 ++++++++++++++++++
 app/controllers/ExperimentController.scala      | 19 ++++++++++++++++++
 app/controllers/JsonBodyParser.scala            | 19 ++++++++++++++++++
 app/controllers/PostProcess.scala               | 19 ++++++++++++++++++
 app/controllers/PublishController.scala         | 19 ++++++++++++++++++
 app/controllers/QueryController.scala           | 19 ++++++++++++++++++
 app/controllers/RequestParser.scala             | 19 ++++++++++++++++++
 app/controllers/TestController.scala            | 19 ++++++++++++++++++
 app/controllers/VertexController.scala          | 19 ++++++++++++++++++
 app/models/ExactCounterItem.scala               | 19 ++++++++++++++++++
 app/models/RankCounterItem.scala                | 19 ++++++++++++++++++
 app/models/package.scala                        | 19 ++++++++++++++++++
 app/util/TestDataLoader.scala                   | 19 ++++++++++++++++++
 conf/logger.xml                                 | 20 +++++++++++++++++++
 loader/loader.py                                | 16 +++++++++++++++
 loader/src/main/resources/log4j.properties      | 17 ++++++++++++++++
 .../main/scala/subscriber/GraphSubscriber.scala | 19 ++++++++++++++++++
 .../subscriber/GraphSubscriberStreaming.scala   | 19 ++++++++++++++++++
 .../src/main/scala/subscriber/KafkaToHdfs.scala | 19 ++++++++++++++++++
 .../main/scala/subscriber/TestEdgeBuilder.scala | 19 ++++++++++++++++++
 .../main/scala/subscriber/TransferToHFile.scala | 19 ++++++++++++++++++
 .../scala/subscriber/VertexDegreeBuilder.scala  | 19 ++++++++++++++++++
 .../main/scala/subscriber/WalLogToHDFS.scala    | 19 ++++++++++++++++++
 .../scala/subscriber/GraphSubscriberTest.scala  | 19 ++++++++++++++++++
 s2core/src/main/resources/logback.xml           | 20 +++++++++++++++++++
 .../scala/com/kakao/s2graph/core/Edge.scala     | 19 ++++++++++++++++++
 .../kakao/s2graph/core/ExceptionHandler.scala   | 19 ++++++++++++++++++
 .../scala/com/kakao/s2graph/core/Graph.scala    | 19 ++++++++++++++++++
 .../com/kakao/s2graph/core/GraphElement.scala   | 19 ++++++++++++++++++
 .../kakao/s2graph/core/GraphExceptions.scala    | 19 ++++++++++++++++++
 .../com/kakao/s2graph/core/GraphUtil.scala      | 19 ++++++++++++++++++
 .../com/kakao/s2graph/core/JSONParser.scala     | 19 ++++++++++++++++++
 .../com/kakao/s2graph/core/Management.scala     | 19 ++++++++++++++++++
 .../com/kakao/s2graph/core/OrderingUtil.scala   | 19 ++++++++++++++++++
 .../com/kakao/s2graph/core/QueryParam.scala     | 19 ++++++++++++++++++
 .../com/kakao/s2graph/core/QueryRequest.scala   | 19 ++++++++++++++++++
 .../com/kakao/s2graph/core/QueryResult.scala    | 19 ++++++++++++++++++
 .../scala/com/kakao/s2graph/core/Vertex.scala   | 19 ++++++++++++++++++
 .../com/kakao/s2graph/core/mysqls/Bucket.scala  | 19 ++++++++++++++++++
 .../kakao/s2graph/core/mysqls/ColumnMeta.scala  | 19 ++++++++++++++++++
 .../kakao/s2graph/core/mysqls/Experiment.scala  | 19 ++++++++++++++++++
 .../com/kakao/s2graph/core/mysqls/Label.scala   | 19 ++++++++++++++++++
 .../kakao/s2graph/core/mysqls/LabelIndex.scala  | 19 ++++++++++++++++++
 .../kakao/s2graph/core/mysqls/LabelMeta.scala   | 19 ++++++++++++++++++
 .../com/kakao/s2graph/core/mysqls/Model.scala   | 19 ++++++++++++++++++
 .../com/kakao/s2graph/core/mysqls/Service.scala | 19 ++++++++++++++++++
 .../s2graph/core/mysqls/ServiceColumn.scala     | 19 ++++++++++++++++++
 .../s2graph/core/parsers/WhereParser.scala      | 19 ++++++++++++++++++
 .../s2graph/core/storage/MutationBuilder.scala  | 19 ++++++++++++++++++
 .../s2graph/core/storage/QueryBuilder.scala     | 19 ++++++++++++++++++
 .../kakao/s2graph/core/storage/SKeyValue.scala  | 19 ++++++++++++++++++
 .../kakao/s2graph/core/storage/Storage.scala    | 19 ++++++++++++++++++
 .../core/storage/StorageDeserializable.scala    | 19 ++++++++++++++++++
 .../core/storage/StorageSerializable.scala      | 19 ++++++++++++++++++
 .../hbase/AsynchbaseMutationBuilder.scala       | 19 ++++++++++++++++++
 .../storage/hbase/AsynchbaseQueryBuilder.scala  | 19 ++++++++++++++++++
 .../core/storage/hbase/AsynchbaseStorage.scala  | 19 ++++++++++++++++++
 .../core/storage/hbase/HDeserializable.scala    | 21 +++++++++++++++++++-
 .../core/storage/hbase/HSerializable.scala      | 19 ++++++++++++++++++
 .../storage/hbase/IndexEdgeDeserializable.scala | 19 ++++++++++++++++++
 .../storage/hbase/IndexEdgeSerializable.scala   | 19 ++++++++++++++++++
 .../hbase/SnapshotEdgeDeserializable.scala      | 19 ++++++++++++++++++
 .../hbase/SnapshotEdgeSerializable.scala        | 19 ++++++++++++++++++
 .../storage/hbase/VertexDeserializable.scala    | 19 ++++++++++++++++++
 .../core/storage/hbase/VertexSerializable.scala | 19 ++++++++++++++++++
 .../kakao/s2graph/core/types/HBaseType.scala    | 21 +++++++++++++++++++-
 .../kakao/s2graph/core/types/InnerValLike.scala | 19 ++++++++++++++++++
 .../s2graph/core/types/LabelWithDirection.scala | 19 ++++++++++++++++++
 .../com/kakao/s2graph/core/types/VertexId.scala | 19 ++++++++++++++++++
 .../kakao/s2graph/core/types/v1/InnerVal.scala  | 19 ++++++++++++++++++
 .../kakao/s2graph/core/types/v2/InnerVal.scala  | 19 ++++++++++++++++++
 .../kakao/s2graph/core/utils/Extentions.scala   | 19 ++++++++++++++++++
 .../com/kakao/s2graph/core/utils/Logger.scala   | 19 ++++++++++++++++++
 .../s2graph/core/utils/SafeUpdateCache.scala    | 19 ++++++++++++++++++
 .../scala/com/kakao/s2graph/core/EdgeTest.scala | 19 ++++++++++++++++++
 .../com/kakao/s2graph/core/GraphTest.scala      | 19 ++++++++++++++++++
 .../com/kakao/s2graph/core/JsonParserTest.scala | 19 ++++++++++++++++++
 .../com/kakao/s2graph/core/ManagementTest.scala | 19 ++++++++++++++++++
 .../kakao/s2graph/core/OrderingUtilTest.scala   | 19 ++++++++++++++++++
 .../com/kakao/s2graph/core/QueryParamTest.scala | 19 ++++++++++++++++++
 .../com/kakao/s2graph/core/TestCommon.scala     | 19 ++++++++++++++++++
 .../s2graph/core/TestCommonWithModels.scala     | 19 ++++++++++++++++++
 .../com/kakao/s2graph/core/VertexTest.scala     | 19 ++++++++++++++++++
 .../kakao/s2graph/core/models/ModelTest.scala   | 19 ++++++++++++++++++
 .../s2graph/core/mysqls/ExperimentSpec.scala    | 19 ++++++++++++++++++
 .../s2graph/core/parsers/WhereParserTest.scala  | 19 ++++++++++++++++++
 .../hbase/AsynchbaseQueryBuilderTest.scala      | 19 ++++++++++++++++++
 .../s2graph/core/types/CompositeIdTest.scala    | 19 ++++++++++++++++++
 .../kakao/s2graph/core/types/EdgeTypeTest.scala | 19 ++++++++++++++++++
 .../kakao/s2graph/core/types/InnerValTest.scala | 19 ++++++++++++++++++
 .../s2graph/core/types/SourceVertexIdTest.scala | 19 ++++++++++++++++++
 .../s2graph/core/types/TargetVertexIdTest.scala | 19 ++++++++++++++++++
 .../kakao/s2graph/core/types/VertexIdTest.scala | 19 ++++++++++++++++++
 .../s2graph/core/types/VertexTypeTest.scala     | 19 ++++++++++++++++++
 .../main/scala/s2/config/ConfigFunctions.scala  | 19 ++++++++++++++++++
 .../main/scala/s2/config/S2CounterConfig.scala  | 19 ++++++++++++++++++
 .../src/main/scala/s2/counter/TrxLog.scala      | 19 ++++++++++++++++++
 .../main/scala/s2/counter/core/BytesUtil.scala  | 19 ++++++++++++++++++
 .../scala/s2/counter/core/ExactCounter.scala    | 19 ++++++++++++++++++
 .../main/scala/s2/counter/core/ExactKey.scala   | 19 ++++++++++++++++++
 .../scala/s2/counter/core/ExactQualifier.scala  | 19 ++++++++++++++++++
 .../scala/s2/counter/core/ExactStorage.scala    | 19 ++++++++++++++++++
 .../scala/s2/counter/core/RankingCounter.scala  | 21 +++++++++++++++++++-
 .../main/scala/s2/counter/core/RankingKey.scala | 19 ++++++++++++++++++
 .../scala/s2/counter/core/RankingResult.scala   | 19 ++++++++++++++++++
 .../scala/s2/counter/core/RankingStorage.scala  | 19 ++++++++++++++++++
 .../scala/s2/counter/core/RankingValue.scala    | 19 ++++++++++++++++++
 .../s2/counter/core/RateRankingValue.scala      | 19 ++++++++++++++++++
 .../scala/s2/counter/core/TimedQualifier.scala  | 19 ++++++++++++++++++
 .../scala/s2/counter/core/v1/BytesUtilV1.scala  | 19 ++++++++++++++++++
 .../core/v1/ExactStorageAsyncHBase.scala        | 19 ++++++++++++++++++
 .../s2/counter/core/v1/ExactStorageHBase.scala  | 19 ++++++++++++++++++
 .../counter/core/v1/RankingStorageRedis.scala   | 19 ++++++++++++++++++
 .../scala/s2/counter/core/v2/BytesUtilV2.scala  | 19 ++++++++++++++++++
 .../s2/counter/core/v2/ExactStorageGraph.scala  | 19 ++++++++++++++++++
 .../s2/counter/core/v2/GraphOperation.scala     | 19 ++++++++++++++++++
 .../counter/core/v2/RankingStorageGraph.scala   | 19 ++++++++++++++++++
 .../scala/s2/counter/decay/DecayFormula.scala   | 19 ++++++++++++++++++
 .../s2/counter/decay/ExpDecayFormula.scala      | 19 ++++++++++++++++++
 .../src/main/scala/s2/counter/package.scala     | 19 ++++++++++++++++++
 .../src/main/scala/s2/helper/CounterAdmin.scala | 19 ++++++++++++++++++
 .../scala/s2/helper/DistributedScanner.scala    | 19 ++++++++++++++++++
 .../scala/s2/helper/HashShardingJedis.scala     | 19 ++++++++++++++++++
 .../src/main/scala/s2/helper/Management.scala   | 19 ++++++++++++++++++
 .../src/main/scala/s2/helper/WithHBase.scala    | 19 ++++++++++++++++++
 .../src/main/scala/s2/helper/WithRedis.scala    | 19 ++++++++++++++++++
 .../main/scala/s2/models/CachedDBModel.scala    | 19 ++++++++++++++++++
 .../src/main/scala/s2/models/Counter.scala      | 19 ++++++++++++++++++
 .../src/main/scala/s2/models/DBModel.scala      | 19 ++++++++++++++++++
 .../main/scala/s2/util/CartesianProduct.scala   | 19 ++++++++++++++++++
 .../main/scala/s2/util/CollectionCache.scala    | 19 ++++++++++++++++++
 .../src/main/scala/s2/util/FunctionParser.scala | 19 ++++++++++++++++++
 .../src/main/scala/s2/util/Hashes.scala         | 19 ++++++++++++++++++
 .../src/main/scala/s2/util/ReduceMapValue.scala | 19 ++++++++++++++++++
 .../src/main/scala/s2/util/Retry.scala          | 19 ++++++++++++++++++
 .../src/main/scala/s2/util/SplitBytes.scala     | 19 ++++++++++++++++++
 .../src/main/scala/s2/util/UnitConverter.scala  | 19 ++++++++++++++++++
 .../src/test/resources/log4j.properties         | 17 ++++++++++++++++
 .../s2/counter/core/RankingCounterSpec.scala    | 19 ++++++++++++++++++
 .../test/scala/s2/models/CounterModelSpec.scala | 19 ++++++++++++++++++
 .../src/test/scala/s2/models/CounterSpec.scala  | 19 ++++++++++++++++++
 .../main/scala/s2/config/StreamingConfig.scala  | 19 ++++++++++++++++++
 .../scala/s2/counter/CounterBulkLoader.scala    | 21 +++++++++++++++++++-
 .../scala/s2/counter/EraseDailyCounter.scala    | 19 ++++++++++++++++++
 .../s2/counter/core/CounterEtlFunctions.scala   | 19 ++++++++++++++++++
 .../scala/s2/counter/core/CounterEtlItem.scala  | 19 ++++++++++++++++++
 .../s2/counter/core/CounterFunctions.scala      | 19 ++++++++++++++++++
 .../scala/s2/counter/core/DimensionProps.scala  | 19 ++++++++++++++++++
 .../scala/s2/counter/stream/EtlStreaming.scala  | 19 ++++++++++++++++++
 .../counter/stream/ExactCounterStreaming.scala  | 19 ++++++++++++++++++
 .../s2/counter/stream/GraphToETLStreaming.scala | 19 ++++++++++++++++++
 .../stream/RankingCounterStreaming.scala        | 19 ++++++++++++++++++
 .../scala/s2/models/DefaultCounterModel.scala   | 19 ++++++++++++++++++
 .../src/test/resources/log4j.properties         | 17 ++++++++++++++++
 .../counter/core/CounterEtlFunctionsSpec.scala  | 19 ++++++++++++++++++
 .../s2/counter/core/DimensionPropsTest.scala    | 19 ++++++++++++++++++
 .../stream/RankingCounterStreamingSpec.scala    | 19 ++++++++++++++++++
 script/test.sh                                  | 16 +++++++++++++++
 spark/src/main/scala/kafka/KafkaHelper.scala    | 19 ++++++++++++++++++
 .../streaming/kafka/KafkaRDDFunctions.scala     | 19 ++++++++++++++++++
 .../spark/streaming/kafka/StreamHelper.scala    | 19 ++++++++++++++++++
 .../main/scala/s2/config/S2ConfigFactory.scala  | 19 ++++++++++++++++++
 .../src/main/scala/s2/spark/HashMapParam.scala  | 21 +++++++++++++++++++-
 spark/src/main/scala/s2/spark/RDDUtil.scala     | 19 ++++++++++++++++++
 spark/src/main/scala/s2/spark/SparkApp.scala    | 19 ++++++++++++++++++
 .../scala/s2/spark/SubscriberListener.scala     | 19 ++++++++++++++++++
 spark/src/main/scala/s2/spark/WithKafka.scala   | 21 +++++++++++++++++++-
 .../src/test/scala/s2/spark/SparkAppTest.scala  | 19 ++++++++++++++++++
 .../test/scala/s2/spark/TestStreamingSpec.scala | 19 ++++++++++++++++++
 test.sh                                         | 16 +++++++++++++++
 test/benchmark/BenchmarkCommon.scala            | 19 ++++++++++++++++++
 test/benchmark/GraphUtilSpec.scala              | 19 ++++++++++++++++++
 test/benchmark/JsonBenchmarkSpec.scala          | 19 ++++++++++++++++++
 test/benchmark/OrderingUtilBenchmarkSpec.scala  | 19 ++++++++++++++++++
 test/benchmark/PostProcessBenchmarkSpec.scala   | 19 ++++++++++++++++++
 test/benchmark/SamplingBenchmarkSpec.scala      | 19 ++++++++++++++++++
 test/controllers/AdminControllerSpec.scala      | 19 ++++++++++++++++++
 test/controllers/BasicCrudSpec.scala            | 19 ++++++++++++++++++
 test/controllers/EdgeControllerSpec.scala       | 19 ++++++++++++++++++
 test/controllers/PostProcessSpec.scala          | 19 ++++++++++++++++++
 test/controllers/QueryCacheSpec.scala           | 19 ++++++++++++++++++
 test/controllers/QuerySpec.scala                | 19 ++++++++++++++++++
 test/controllers/SpecCommon.scala               | 19 ++++++++++++++++++
 test/controllers/StrongLabelDeleteSpec.scala    | 19 ++++++++++++++++++
 test/controllers/VertexSpec.scala               | 19 ++++++++++++++++++
 test/controllers/WeakLabelDeleteSpec.scala      | 19 ++++++++++++++++++
 193 files changed, 3660 insertions(+), 6 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/app/Bootstrap.scala
----------------------------------------------------------------------
diff --git a/app/Bootstrap.scala b/app/Bootstrap.scala
index 1879d90..5df02f2 100644
--- a/app/Bootstrap.scala
+++ b/app/Bootstrap.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.rest
 
 import java.util.concurrent.Executors

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/app/actors/QueueActor.scala
----------------------------------------------------------------------
diff --git a/app/actors/QueueActor.scala b/app/actors/QueueActor.scala
index 74bc65d..1f49cfe 100644
--- a/app/actors/QueueActor.scala
+++ b/app/actors/QueueActor.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 actors
 
 import java.util.concurrent.TimeUnit

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/app/config/Config.scala
----------------------------------------------------------------------
diff --git a/app/config/Config.scala b/app/config/Config.scala
index 98b87c5..b3b3b91 100644
--- a/app/config/Config.scala
+++ b/app/config/Config.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 config
 
 import play.api.Play

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/app/config/CounterConfig.scala
----------------------------------------------------------------------
diff --git a/app/config/CounterConfig.scala b/app/config/CounterConfig.scala
index 2569d55..26d9564 100644
--- a/app/config/CounterConfig.scala
+++ b/app/config/CounterConfig.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 config
 
 /**

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/app/controllers/AdminController.scala
----------------------------------------------------------------------
diff --git a/app/controllers/AdminController.scala 
b/app/controllers/AdminController.scala
index b31f01f..58c09bf 100644
--- a/app/controllers/AdminController.scala
+++ b/app/controllers/AdminController.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 controllers
 
 import com.kakao.s2graph.core._

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/app/controllers/ApplicationController.scala
----------------------------------------------------------------------
diff --git a/app/controllers/ApplicationController.scala 
b/app/controllers/ApplicationController.scala
index fefe93e..d1d3909 100644
--- a/app/controllers/ApplicationController.scala
+++ b/app/controllers/ApplicationController.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 controllers
 
 import com.kakao.s2graph.core.utils.logger

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/app/controllers/CounterController.scala
----------------------------------------------------------------------
diff --git a/app/controllers/CounterController.scala 
b/app/controllers/CounterController.scala
index c2b4dc2..7d0b5eb 100644
--- a/app/controllers/CounterController.scala
+++ b/app/controllers/CounterController.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 controllers
 
 import com.kakao.s2graph.core.ExceptionHandler

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/app/controllers/EdgeController.scala
----------------------------------------------------------------------
diff --git a/app/controllers/EdgeController.scala 
b/app/controllers/EdgeController.scala
index 6279b2c..96e8149 100644
--- a/app/controllers/EdgeController.scala
+++ b/app/controllers/EdgeController.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 controllers
 
 import actors.QueueActor

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/app/controllers/ExperimentController.scala
----------------------------------------------------------------------
diff --git a/app/controllers/ExperimentController.scala 
b/app/controllers/ExperimentController.scala
index 41614ef..9488950 100644
--- a/app/controllers/ExperimentController.scala
+++ b/app/controllers/ExperimentController.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 controllers
 
 

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/app/controllers/JsonBodyParser.scala
----------------------------------------------------------------------
diff --git a/app/controllers/JsonBodyParser.scala 
b/app/controllers/JsonBodyParser.scala
index 3e3d40c..36ecaae 100644
--- a/app/controllers/JsonBodyParser.scala
+++ b/app/controllers/JsonBodyParser.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 controllers
 
 import com.kakao.s2graph.core.utils.logger

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/app/controllers/PostProcess.scala
----------------------------------------------------------------------
diff --git a/app/controllers/PostProcess.scala 
b/app/controllers/PostProcess.scala
index bbc7266..a64346f 100644
--- a/app/controllers/PostProcess.scala
+++ b/app/controllers/PostProcess.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 controllers
 
 import com.kakao.s2graph.core._

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/app/controllers/PublishController.scala
----------------------------------------------------------------------
diff --git a/app/controllers/PublishController.scala 
b/app/controllers/PublishController.scala
index b1495d5..fdb27ee 100644
--- a/app/controllers/PublishController.scala
+++ b/app/controllers/PublishController.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 controllers
 
 import com.kakao.s2graph.core.ExceptionHandler

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/app/controllers/QueryController.scala
----------------------------------------------------------------------
diff --git a/app/controllers/QueryController.scala 
b/app/controllers/QueryController.scala
index f545b89..782c21a 100644
--- a/app/controllers/QueryController.scala
+++ b/app/controllers/QueryController.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 controllers
 
 

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/app/controllers/RequestParser.scala
----------------------------------------------------------------------
diff --git a/app/controllers/RequestParser.scala 
b/app/controllers/RequestParser.scala
index e2ac8d6..09554ee 100644
--- a/app/controllers/RequestParser.scala
+++ b/app/controllers/RequestParser.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 controllers
 
 import com.kakao.s2graph.core.GraphExceptions.{BadQueryException, 
ModelNotFoundException}

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/app/controllers/TestController.scala
----------------------------------------------------------------------
diff --git a/app/controllers/TestController.scala 
b/app/controllers/TestController.scala
index 8558ae5..7433993 100644
--- a/app/controllers/TestController.scala
+++ b/app/controllers/TestController.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 controllers
 
 import play.api.mvc.{Action, Controller}

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/app/controllers/VertexController.scala
----------------------------------------------------------------------
diff --git a/app/controllers/VertexController.scala 
b/app/controllers/VertexController.scala
index 9c6de20..0831082 100644
--- a/app/controllers/VertexController.scala
+++ b/app/controllers/VertexController.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 controllers
 
 

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/app/models/ExactCounterItem.scala
----------------------------------------------------------------------
diff --git a/app/models/ExactCounterItem.scala 
b/app/models/ExactCounterItem.scala
index 244c046..55891ab 100644
--- a/app/models/ExactCounterItem.scala
+++ b/app/models/ExactCounterItem.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 models
 
 import play.api.libs.json.{Json, Writes}

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/app/models/RankCounterItem.scala
----------------------------------------------------------------------
diff --git a/app/models/RankCounterItem.scala b/app/models/RankCounterItem.scala
index aaa7df7..8f20407 100644
--- a/app/models/RankCounterItem.scala
+++ b/app/models/RankCounterItem.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 models
 
 import play.api.libs.json.{Json, Writes}

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/app/models/package.scala
----------------------------------------------------------------------
diff --git a/app/models/package.scala b/app/models/package.scala
index 17fa8e1..fd8a01f 100644
--- a/app/models/package.scala
+++ b/app/models/package.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
 import java.text.SimpleDateFormat
 
 /**

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/app/util/TestDataLoader.scala
----------------------------------------------------------------------
diff --git a/app/util/TestDataLoader.scala b/app/util/TestDataLoader.scala
index 45a9b61..c97feb4 100644
--- a/app/util/TestDataLoader.scala
+++ b/app/util/TestDataLoader.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 util
 
 import java.io.File

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/conf/logger.xml
----------------------------------------------------------------------
diff --git a/conf/logger.xml b/conf/logger.xml
index 2d767c2..0fe2b69 100644
--- a/conf/logger.xml
+++ b/conf/logger.xml
@@ -1,3 +1,23 @@
+<?xml version='1.0'?>
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you 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.
+-->
+
 <configuration>
 
     <conversionRule conversionWord="coloredLevel" 
converterClass="play.api.Logger$ColoredLevel"/>

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/loader/loader.py
----------------------------------------------------------------------
diff --git a/loader/loader.py b/loader/loader.py
index 1345736..1d4dc32 100644
--- a/loader/loader.py
+++ b/loader/loader.py
@@ -1,4 +1,20 @@
 #!/usr/bin/python
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
 
 import os, sys, urllib2, urllib
 

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/loader/src/main/resources/log4j.properties
----------------------------------------------------------------------
diff --git a/loader/src/main/resources/log4j.properties 
b/loader/src/main/resources/log4j.properties
old mode 100755
new mode 100644
index 09e570a..9a4b8ef
--- a/loader/src/main/resources/log4j.properties
+++ b/loader/src/main/resources/log4j.properties
@@ -1,3 +1,20 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+
 log4j.rootLogger=${root.logger}
 root.logger=WARN,console
 log4j.appender.console=org.apache.log4j.ConsoleAppender

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/loader/src/main/scala/subscriber/GraphSubscriber.scala
----------------------------------------------------------------------
diff --git a/loader/src/main/scala/subscriber/GraphSubscriber.scala 
b/loader/src/main/scala/subscriber/GraphSubscriber.scala
index 88de3d7..14e8259 100644
--- a/loader/src/main/scala/subscriber/GraphSubscriber.scala
+++ b/loader/src/main/scala/subscriber/GraphSubscriber.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 subscriber
 
 

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/loader/src/main/scala/subscriber/GraphSubscriberStreaming.scala
----------------------------------------------------------------------
diff --git a/loader/src/main/scala/subscriber/GraphSubscriberStreaming.scala 
b/loader/src/main/scala/subscriber/GraphSubscriberStreaming.scala
index 1063560..73c1ed4 100644
--- a/loader/src/main/scala/subscriber/GraphSubscriberStreaming.scala
+++ b/loader/src/main/scala/subscriber/GraphSubscriberStreaming.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 subscriber
 
 import org.apache.hadoop.hbase.HBaseConfiguration

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/loader/src/main/scala/subscriber/KafkaToHdfs.scala
----------------------------------------------------------------------
diff --git a/loader/src/main/scala/subscriber/KafkaToHdfs.scala 
b/loader/src/main/scala/subscriber/KafkaToHdfs.scala
index 785cb69..4f92cd8 100644
--- a/loader/src/main/scala/subscriber/KafkaToHdfs.scala
+++ b/loader/src/main/scala/subscriber/KafkaToHdfs.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 subscriber
 
 import org.apache.spark.streaming.Durations._

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/loader/src/main/scala/subscriber/TestEdgeBuilder.scala
----------------------------------------------------------------------
diff --git a/loader/src/main/scala/subscriber/TestEdgeBuilder.scala 
b/loader/src/main/scala/subscriber/TestEdgeBuilder.scala
index f5f43f8..9b4083a 100644
--- a/loader/src/main/scala/subscriber/TestEdgeBuilder.scala
+++ b/loader/src/main/scala/subscriber/TestEdgeBuilder.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 subscriber
 
 import org.apache.spark.SparkContext

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/loader/src/main/scala/subscriber/TransferToHFile.scala
----------------------------------------------------------------------
diff --git a/loader/src/main/scala/subscriber/TransferToHFile.scala 
b/loader/src/main/scala/subscriber/TransferToHFile.scala
index aba9673..8bd986b 100644
--- a/loader/src/main/scala/subscriber/TransferToHFile.scala
+++ b/loader/src/main/scala/subscriber/TransferToHFile.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 subscriber
 
 

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/loader/src/main/scala/subscriber/VertexDegreeBuilder.scala
----------------------------------------------------------------------
diff --git a/loader/src/main/scala/subscriber/VertexDegreeBuilder.scala 
b/loader/src/main/scala/subscriber/VertexDegreeBuilder.scala
index c8255dd..031e94b 100644
--- a/loader/src/main/scala/subscriber/VertexDegreeBuilder.scala
+++ b/loader/src/main/scala/subscriber/VertexDegreeBuilder.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 subscriber
 
 /**

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/loader/src/main/scala/subscriber/WalLogToHDFS.scala
----------------------------------------------------------------------
diff --git a/loader/src/main/scala/subscriber/WalLogToHDFS.scala 
b/loader/src/main/scala/subscriber/WalLogToHDFS.scala
index 2c37aef..061b97a 100644
--- a/loader/src/main/scala/subscriber/WalLogToHDFS.scala
+++ b/loader/src/main/scala/subscriber/WalLogToHDFS.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 subscriber
 
 import java.text.SimpleDateFormat

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/loader/src/test/scala/subscriber/GraphSubscriberTest.scala
----------------------------------------------------------------------
diff --git a/loader/src/test/scala/subscriber/GraphSubscriberTest.scala 
b/loader/src/test/scala/subscriber/GraphSubscriberTest.scala
index a70c0f6..b1b9133 100644
--- a/loader/src/test/scala/subscriber/GraphSubscriberTest.scala
+++ b/loader/src/test/scala/subscriber/GraphSubscriberTest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 subscriber
 
 import com.kakao.s2graph.core.{Label, Service, Management}

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/resources/logback.xml
----------------------------------------------------------------------
diff --git a/s2core/src/main/resources/logback.xml 
b/s2core/src/main/resources/logback.xml
index 94f4920..2331d18 100644
--- a/s2core/src/main/resources/logback.xml
+++ b/s2core/src/main/resources/logback.xml
@@ -1,4 +1,24 @@
 <?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you 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.
+-->
+
 <configuration>
   <jmxConfigurator/>
   <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/scala/com/kakao/s2graph/core/Edge.scala
----------------------------------------------------------------------
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/Edge.scala 
b/s2core/src/main/scala/com/kakao/s2graph/core/Edge.scala
index 10443c3..6ebda32 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/Edge.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/Edge.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.core
 
 

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/scala/com/kakao/s2graph/core/ExceptionHandler.scala
----------------------------------------------------------------------
diff --git 
a/s2core/src/main/scala/com/kakao/s2graph/core/ExceptionHandler.scala 
b/s2core/src/main/scala/com/kakao/s2graph/core/ExceptionHandler.scala
index a965e90..1a55441 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/ExceptionHandler.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/ExceptionHandler.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.core
 
 import java.util.Properties

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/scala/com/kakao/s2graph/core/Graph.scala
----------------------------------------------------------------------
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/Graph.scala 
b/s2core/src/main/scala/com/kakao/s2graph/core/Graph.scala
index 727a3be..e600ff4 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/Graph.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/Graph.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.core
 
 import java.util

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/scala/com/kakao/s2graph/core/GraphElement.scala
----------------------------------------------------------------------
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/GraphElement.scala 
b/s2core/src/main/scala/com/kakao/s2graph/core/GraphElement.scala
index e6c043d..ed27981 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/GraphElement.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/GraphElement.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.core
 
 import org.hbase.async.{HBaseRpc}

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/scala/com/kakao/s2graph/core/GraphExceptions.scala
----------------------------------------------------------------------
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/GraphExceptions.scala 
b/s2core/src/main/scala/com/kakao/s2graph/core/GraphExceptions.scala
index fa186c2..669b664 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/GraphExceptions.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/GraphExceptions.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.core
 
 

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/scala/com/kakao/s2graph/core/GraphUtil.scala
----------------------------------------------------------------------
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/GraphUtil.scala 
b/s2core/src/main/scala/com/kakao/s2graph/core/GraphUtil.scala
index 0359963..821332e 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/GraphUtil.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/GraphUtil.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.core
 
 import scala.util.Random

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/scala/com/kakao/s2graph/core/JSONParser.scala
----------------------------------------------------------------------
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/JSONParser.scala 
b/s2core/src/main/scala/com/kakao/s2graph/core/JSONParser.scala
index 3b6d529..a229430 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/JSONParser.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/JSONParser.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.core
 
 import com.kakao.s2graph.core.types.{InnerVal, InnerValLike}

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/scala/com/kakao/s2graph/core/Management.scala
----------------------------------------------------------------------
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/Management.scala 
b/s2core/src/main/scala/com/kakao/s2graph/core/Management.scala
index 5258a3a..ffb5fec 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/Management.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/Management.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.core
 
 

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/scala/com/kakao/s2graph/core/OrderingUtil.scala
----------------------------------------------------------------------
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/OrderingUtil.scala 
b/s2core/src/main/scala/com/kakao/s2graph/core/OrderingUtil.scala
index 217b6eb..254f288 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/OrderingUtil.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/OrderingUtil.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.core
 
 import com.kakao.s2graph.core.types.InnerValLike

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/scala/com/kakao/s2graph/core/QueryParam.scala
----------------------------------------------------------------------
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/QueryParam.scala 
b/s2core/src/main/scala/com/kakao/s2graph/core/QueryParam.scala
index 449764b..38a4d5e 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/QueryParam.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/QueryParam.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.core
 
 import com.google.common.hash.Hashing

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/scala/com/kakao/s2graph/core/QueryRequest.scala
----------------------------------------------------------------------
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/QueryRequest.scala 
b/s2core/src/main/scala/com/kakao/s2graph/core/QueryRequest.scala
index 413bfdb..3e2b33a 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/QueryRequest.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/QueryRequest.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.core
 //
 //import scala.collection.Seq

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/scala/com/kakao/s2graph/core/QueryResult.scala
----------------------------------------------------------------------
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/QueryResult.scala 
b/s2core/src/main/scala/com/kakao/s2graph/core/QueryResult.scala
index 36c5a01..0afcf83 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/QueryResult.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/QueryResult.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.core
 
 import com.kakao.s2graph.core.mysqls.LabelMeta

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/scala/com/kakao/s2graph/core/Vertex.scala
----------------------------------------------------------------------
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/Vertex.scala 
b/s2core/src/main/scala/com/kakao/s2graph/core/Vertex.scala
index 9cc0607..9ecbc34 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/Vertex.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/Vertex.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.core
 
 import com.kakao.s2graph.core.mysqls._

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Bucket.scala
----------------------------------------------------------------------
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Bucket.scala 
b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Bucket.scala
index edc6147..93c4b61 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Bucket.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Bucket.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.core.mysqls
 
 /**

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/ColumnMeta.scala
----------------------------------------------------------------------
diff --git 
a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/ColumnMeta.scala 
b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/ColumnMeta.scala
index 1b6d55f..1081fdf 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/ColumnMeta.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/ColumnMeta.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.core.mysqls
 
 import play.api.libs.json.Json

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Experiment.scala
----------------------------------------------------------------------
diff --git 
a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Experiment.scala 
b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Experiment.scala
index 93cc374..6a4d543 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Experiment.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Experiment.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.core.mysqls
 
 import com.kakao.s2graph.core.GraphUtil

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Label.scala
----------------------------------------------------------------------
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Label.scala 
b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Label.scala
index 1e49abd..33492da 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Label.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Label.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.core.mysqls
 
 /**

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/LabelIndex.scala
----------------------------------------------------------------------
diff --git 
a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/LabelIndex.scala 
b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/LabelIndex.scala
index 47f4a2a..bb13fc4 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/LabelIndex.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/LabelIndex.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.core.mysqls
 
 /**

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/LabelMeta.scala
----------------------------------------------------------------------
diff --git 
a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/LabelMeta.scala 
b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/LabelMeta.scala
index 3cd7995..a846cfc 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/LabelMeta.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/LabelMeta.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.core.mysqls
 
 /**

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Model.scala
----------------------------------------------------------------------
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Model.scala 
b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Model.scala
index f40afab..e133a10 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Model.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Model.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.core.mysqls
 
 import java.util.concurrent.Executors

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Service.scala
----------------------------------------------------------------------
diff --git a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Service.scala 
b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Service.scala
index edd36df..4b14d12 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Service.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/Service.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.core.mysqls
 
 /**

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/ServiceColumn.scala
----------------------------------------------------------------------
diff --git 
a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/ServiceColumn.scala 
b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/ServiceColumn.scala
index 9ca32a0..8ae07b7 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/ServiceColumn.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/mysqls/ServiceColumn.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.core.mysqls
 
 /**

http://git-wip-us.apache.org/repos/asf/incubator-s2graph/blob/8c04784a/s2core/src/main/scala/com/kakao/s2graph/core/parsers/WhereParser.scala
----------------------------------------------------------------------
diff --git 
a/s2core/src/main/scala/com/kakao/s2graph/core/parsers/WhereParser.scala 
b/s2core/src/main/scala/com/kakao/s2graph/core/parsers/WhereParser.scala
index db28eee..2255b01 100644
--- a/s2core/src/main/scala/com/kakao/s2graph/core/parsers/WhereParser.scala
+++ b/s2core/src/main/scala/com/kakao/s2graph/core/parsers/WhereParser.scala
@@ -1,3 +1,22 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.kakao.s2graph.core.parsers
 
 import com.kakao.s2graph.core.GraphExceptions.WhereParserException


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