[Java] Rename group id and package name. (#7864)

* Initial

* Change streaming's

* Fix

* Fix

* Fix org_ray

* Fix cpp file name

* Fix streaming

* Fix

* Fix

* Fix testlistening

* Fix missing sth in python

* Fix

* Fix

* Fix SPI

* Fix

* Fix complation

* Fix

* Fix CI

* Fix checkstyle

Fix checkstyle

* Fix streaming tests

* Fix streaming CI

* Fix streaming checkstyle.

* Fix build

* Fix bazel dep

* Fix

* Fix ray checkstyle

* Fix streaming checkstyle

* Fix bazel checkstyle

streaming/java/BUILD.bazel

@@ -13,17 +13,17 @@ all_modules = [
 java_import(
     name = "all_modules",
     jars = [
-        "liborg_ray_ray_" + module + ".jar"
+        "libio_ray_ray_" + module + ".jar"
         for module in all_modules
     ] + [
-        "liborg_ray_ray_" + module + "-src.jar"
+        "libio_ray_ray_" + module + "-src.jar"
         for module in all_modules
     ] + [
         "all_streaming_tests_deploy.jar",
         "all_streaming_tests_deploy-src.jar",
     ],
     deps = [
-        ":org_ray_ray_" + module
+        ":io_ray_ray_" + module
         for module in all_modules
     ] + [
         ":all_streaming_tests",
@@ -34,8 +34,8 @@ define_java_module(
     name = "streaming-api",
     define_test_lib = True,
     test_deps = [
-        "//java:org_ray_ray_api",
-        ":org_ray_ray_streaming-api",
+        "//java:io_ray_ray_api",
+        ":io_ray_ray_streaming-api",
         "@ray_streaming_maven//:com_google_guava_guava",
         "@ray_streaming_maven//:org_slf4j_slf4j_api",
         "@ray_streaming_maven//:org_slf4j_slf4j_log4j12",
@@ -93,13 +93,13 @@ define_java_module(
     ],
     define_test_lib = True,
     exclude_srcs = [
-        "streaming-runtime/src/main/java/org/ray/streaming/runtime/generated/*.java",
+        "streaming-runtime/src/main/java/io/ray/streaming/runtime/generated/*.java",
     ],
     test_deps = [
-        "//java:org_ray_ray_api",
-        "//java:org_ray_ray_runtime",
-        ":org_ray_ray_streaming-api",
-        ":org_ray_ray_streaming-runtime",
+        "//java:io_ray_ray_api",
+        "//java:io_ray_ray_runtime",
+        ":io_ray_ray_streaming-api",
+        ":io_ray_ray_streaming-runtime",
         "@ray_streaming_maven//:com_google_guava_guava",
         "@ray_streaming_maven//:de_ruedigermoeller_fst",
         "@ray_streaming_maven//:org_msgpack_msgpack_core",
@@ -110,9 +110,9 @@ define_java_module(
     ],
     visibility = ["//visibility:public"],
     deps = [
-        ":org_ray_ray_streaming-api",
-        "//java:org_ray_ray_api",
-        "//java:org_ray_ray_runtime",
+        ":io_ray_ray_streaming-api",
+        "//java:io_ray_ray_api",
+        "//java:io_ray_ray_runtime",
         "@ray_streaming_maven//:com_github_davidmoten_flatbuffers_java",
         "@ray_streaming_maven//:com_google_guava_guava",
         "@ray_streaming_maven//:com_google_protobuf_protobuf_java",
@@ -130,10 +130,10 @@ java_binary(
     data = ["testng.xml"],
     main_class = "org.testng.TestNG",
     runtime_deps = [
-        ":org_ray_ray_streaming-api_test",
-        ":org_ray_ray_streaming-runtime",
-        ":org_ray_ray_streaming-runtime_test",
-        "//java:org_ray_ray_runtime",
+        ":io_ray_ray_streaming-api_test",
+        ":io_ray_ray_streaming-runtime",
+        ":io_ray_ray_streaming-runtime_test",
+        "//java:io_ray_ray_runtime",
         "@ray_streaming_maven//:com_beust_jcommander",
         "@ray_streaming_maven//:org_testng_testng",
     ],
@@ -161,15 +161,15 @@ filegroup(
 genrule(
     name = "copy_pom_file",
     srcs = [
-        "//streaming/java:org_ray_ray_" + module + "_pom"
+        "//streaming/java:io_ray_ray_" + module + "_pom"
         for module in all_modules
     ],
     outs = ["copy_pom_file.out"],
     cmd = """
         set -x
         WORK_DIR="$$(pwd)"
-        cp -f $(location //streaming/java:org_ray_ray_streaming-api_pom) "$$WORK_DIR/streaming/java/streaming-api/pom.xml"
-        cp -f $(location //streaming/java:org_ray_ray_streaming-runtime_pom) "$$WORK_DIR/streaming/java/streaming-runtime/pom.xml"
+        cp -f $(location //streaming/java:io_ray_ray_streaming-api_pom) "$$WORK_DIR/streaming/java/streaming-api/pom.xml"
+        cp -f $(location //streaming/java:io_ray_ray_streaming-runtime_pom) "$$WORK_DIR/streaming/java/streaming-runtime/pom.xml"
         date > $@
     """,
     local = 1,
@@ -186,7 +186,7 @@ genrule(
     cmd = """
         set -x
         WORK_DIR="$$(pwd)"
-        GENERATED_DIR="$$WORK_DIR/streaming/java/streaming-runtime/src/main/java/org/ray/streaming/runtime/generated"
+        GENERATED_DIR="$$WORK_DIR/streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/generated"
         rm -rf "$$GENERATED_DIR"
         mkdir -p "$$GENERATED_DIR"
         # Copy protobuf-generated files.

streaming/java/checkstyle-suppressions.xml

@@ -10,5 +10,5 @@
   <suppress checks="ClassTypeParameterName" files="OneInputStreamTask.java"/>
   <suppress checks="ClassTypeParameterName" files="StreamTask.java"/>
   <!-- suppress check for flatbuffer-generated files. -->
-  <suppress checks=".*" files="org[\\/]ray[\\/]streaming[\\/]runtime[\\/]generated[\\/]" />
+  <suppress checks=".*" files="io[\\/]ray[\\/]streaming[\\/]runtime[\\/]generated[\\/]" />
 </suppressions>

streaming/java/pom.xml

@@ -8,7 +8,7 @@
     <modelVersion>4.0.0</modelVersion>
     <packaging>pom</packaging>
 
-    <groupId>org.ray</groupId>
+    <groupId>io.ray</groupId>
     <artifactId>ray-streaming</artifactId>
     <version>0.1-SNAPSHOT</version>
     <name>ray streaming</name>

streaming/java/streaming-api/pom.xml

@@ -5,7 +5,7 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <parent>
         <artifactId>ray-streaming</artifactId>
-        <groupId>org.ray</groupId>
+        <groupId>io.ray</groupId>
         <version>0.1-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
@@ -18,7 +18,7 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.ray</groupId>
+            <groupId>io.ray</groupId>
             <artifactId>ray-api</artifactId>
             <version>${project.version}</version>
         </dependency>

streaming/java/streaming-api/pom_template.xml

@@ -5,7 +5,7 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <parent>
         <artifactId>ray-streaming</artifactId>
-        <groupId>org.ray</groupId>
+        <groupId>io.ray</groupId>
         <version>0.1-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
@@ -18,7 +18,7 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.ray</groupId>
+            <groupId>io.ray</groupId>
             <artifactId>ray-api</artifactId>
             <version>${project.version}</version>
         </dependency>

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/Language.java

@@ -1,4 +1,4 @@
-package org.ray.streaming.api;
+package io.ray.streaming.api;
 
 public enum Language {
   JAVA,

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/collector/CollectionCollector.java

@@ -1,7 +1,7 @@
-package org.ray.streaming.api.collector;
+package io.ray.streaming.api.collector;
 
+import io.ray.streaming.message.Record;
 import java.util.List;
-import org.ray.streaming.message.Record;
 
 /**
  * Combination of multiple collectors.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/collector/Collector.java

@@ -1,4 +1,4 @@
-package org.ray.streaming.api.collector;
+package io.ray.streaming.api.collector;
 
 /**
  * The collector that collects data from an upstream operator, and emits data to downstream

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/context/RuntimeContext.java

@@ -1,4 +1,4 @@
-package org.ray.streaming.api.context;
+package io.ray.streaming.api.context;
 
 /**
  * Encapsulate the runtime information of a streaming task.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/context/StreamingContext.java

@@ -1,6 +1,10 @@
-package org.ray.streaming.api.context;
+package io.ray.streaming.api.context;
 
 import com.google.common.base.Preconditions;
+import io.ray.streaming.api.stream.StreamSink;
+import io.ray.streaming.jobgraph.JobGraph;
+import io.ray.streaming.jobgraph.JobGraphBuilder;
+import io.ray.streaming.schedule.JobScheduler;
 import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -9,10 +13,6 @@ import java.util.List;
 import java.util.Map;
 import java.util.ServiceLoader;
 import java.util.concurrent.atomic.AtomicInteger;
-import org.ray.streaming.api.stream.StreamSink;
-import org.ray.streaming.jobgraph.JobGraph;
-import org.ray.streaming.jobgraph.JobGraphBuilder;
-import org.ray.streaming.schedule.JobScheduler;
 
 /**
  * Encapsulate the context information of a streaming Job.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/function/Function.java

@@ -1,4 +1,4 @@
-package org.ray.streaming.api.function;
+package io.ray.streaming.api.function;
 
 import java.io.Serializable;
 

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/function/impl/AggregateFunction.java

@@ -1,6 +1,6 @@
-package org.ray.streaming.api.function.impl;
+package io.ray.streaming.api.function.impl;
 
-import org.ray.streaming.api.function.Function;
+import io.ray.streaming.api.function.Function;
 
 /**
  * Interface of aggregate functions.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/function/impl/FilterFunction.java

@@ -1,6 +1,6 @@
-package org.ray.streaming.api.function.impl;
+package io.ray.streaming.api.function.impl;
 
-import org.ray.streaming.api.function.Function;
+import io.ray.streaming.api.function.Function;
 
 /**
  * A filter function is a predicate applied individually to each record.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/function/impl/FlatMapFunction.java

@@ -1,7 +1,7 @@
-package org.ray.streaming.api.function.impl;
+package io.ray.streaming.api.function.impl;
 
-import org.ray.streaming.api.collector.Collector;
-import org.ray.streaming.api.function.Function;
+import io.ray.streaming.api.collector.Collector;
+import io.ray.streaming.api.function.Function;
 
 /**
  * Interface of flat-map functions.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/function/impl/JoinFunction.java

@@ -1,6 +1,6 @@
-package org.ray.streaming.api.function.impl;
+package io.ray.streaming.api.function.impl;
 
-import org.ray.streaming.api.function.Function;
+import io.ray.streaming.api.function.Function;
 
 /**
  * Interface of join functions.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/function/impl/KeyFunction.java

@@ -1,6 +1,6 @@
-package org.ray.streaming.api.function.impl;
+package io.ray.streaming.api.function.impl;
 
-import org.ray.streaming.api.function.Function;
+import io.ray.streaming.api.function.Function;
 
 /**
  * Interface of key-by functions.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/function/impl/MapFunction.java

@@ -1,6 +1,6 @@
-package org.ray.streaming.api.function.impl;
+package io.ray.streaming.api.function.impl;
 
-import org.ray.streaming.api.function.Function;
+import io.ray.streaming.api.function.Function;
 
 /**
  * Interface of map functions.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/function/impl/ProcessFunction.java

@@ -1,6 +1,6 @@
-package org.ray.streaming.api.function.impl;
+package io.ray.streaming.api.function.impl;
 
-import org.ray.streaming.api.function.Function;
+import io.ray.streaming.api.function.Function;
 
 /**
  * Interface of process functions.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/function/impl/ReduceFunction.java

@@ -1,6 +1,6 @@
-package org.ray.streaming.api.function.impl;
+package io.ray.streaming.api.function.impl;
 
-import org.ray.streaming.api.function.Function;
+import io.ray.streaming.api.function.Function;
 
 /**
  * Interface of reduce functions.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/function/impl/SinkFunction.java

@@ -1,6 +1,6 @@
-package org.ray.streaming.api.function.impl;
+package io.ray.streaming.api.function.impl;
 
-import org.ray.streaming.api.function.Function;
+import io.ray.streaming.api.function.Function;
 
 /**
  * Interface of sink functions.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/function/impl/SourceFunction.java

@@ -1,6 +1,6 @@
-package org.ray.streaming.api.function.impl;
+package io.ray.streaming.api.function.impl;
 
-import org.ray.streaming.api.function.Function;
+import io.ray.streaming.api.function.Function;
 
 /**
  * Interface of Source functions.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/function/internal/CollectionSourceFunction.java

@@ -1,8 +1,8 @@
-package org.ray.streaming.api.function.internal;
+package io.ray.streaming.api.function.internal;
 
+import io.ray.streaming.api.function.impl.SourceFunction;
 import java.util.ArrayList;
 import java.util.Collection;
-import org.ray.streaming.api.function.impl.SourceFunction;
 
 /**
  * The SourceFunction that fetch data from a Java Collection object.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/partition/Partition.java

@@ -1,6 +1,6 @@
-package org.ray.streaming.api.partition;
+package io.ray.streaming.api.partition;
 
-import org.ray.streaming.api.function.Function;
+import io.ray.streaming.api.function.Function;
 
 /**
  * Interface of the partitioning strategy.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/partition/impl/BroadcastPartition.java

@@ -1,7 +1,7 @@
-package org.ray.streaming.api.partition.impl;
+package io.ray.streaming.api.partition.impl;
 
+import io.ray.streaming.api.partition.Partition;
 import java.util.stream.IntStream;
-import org.ray.streaming.api.partition.Partition;
 
 /**
  * Broadcast the record to all downstream partitions.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/partition/impl/KeyPartition.java

@@ -1,7 +1,7 @@
-package org.ray.streaming.api.partition.impl;
+package io.ray.streaming.api.partition.impl;
 
-import org.ray.streaming.api.partition.Partition;
-import org.ray.streaming.message.KeyRecord;
+import io.ray.streaming.api.partition.Partition;
+import io.ray.streaming.message.KeyRecord;
 
 /**
  * Partition the record by the key.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/partition/impl/RoundRobinPartition.java

@@ -1,6 +1,6 @@
-package org.ray.streaming.api.partition.impl;
+package io.ray.streaming.api.partition.impl;
 
-import org.ray.streaming.api.partition.Partition;
+import io.ray.streaming.api.partition.Partition;
 
 /**
  * Partition record to downstream tasks in a round-robin matter.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/stream/DataStream.java

@@ -1,20 +1,20 @@
-package org.ray.streaming.api.stream;
+package io.ray.streaming.api.stream;
 
 
-import org.ray.streaming.api.context.StreamingContext;
-import org.ray.streaming.api.function.impl.FilterFunction;
-import org.ray.streaming.api.function.impl.FlatMapFunction;
-import org.ray.streaming.api.function.impl.KeyFunction;
-import org.ray.streaming.api.function.impl.MapFunction;
-import org.ray.streaming.api.function.impl.SinkFunction;
-import org.ray.streaming.api.partition.Partition;
-import org.ray.streaming.api.partition.impl.BroadcastPartition;
-import org.ray.streaming.operator.StreamOperator;
-import org.ray.streaming.operator.impl.FilterOperator;
-import org.ray.streaming.operator.impl.FlatMapOperator;
-import org.ray.streaming.operator.impl.KeyByOperator;
-import org.ray.streaming.operator.impl.MapOperator;
-import org.ray.streaming.operator.impl.SinkOperator;
+import io.ray.streaming.api.context.StreamingContext;
+import io.ray.streaming.api.function.impl.FilterFunction;
+import io.ray.streaming.api.function.impl.FlatMapFunction;
+import io.ray.streaming.api.function.impl.KeyFunction;
+import io.ray.streaming.api.function.impl.MapFunction;
+import io.ray.streaming.api.function.impl.SinkFunction;
+import io.ray.streaming.api.partition.Partition;
+import io.ray.streaming.api.partition.impl.BroadcastPartition;
+import io.ray.streaming.operator.StreamOperator;
+import io.ray.streaming.operator.impl.FilterOperator;
+import io.ray.streaming.operator.impl.FlatMapOperator;
+import io.ray.streaming.operator.impl.KeyByOperator;
+import io.ray.streaming.operator.impl.MapOperator;
+import io.ray.streaming.operator.impl.SinkOperator;
 
 /**
  * Represents a stream of data.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/stream/DataStreamSink.java

@@ -1,6 +1,6 @@
-package org.ray.streaming.api.stream;
+package io.ray.streaming.api.stream;
 
-import org.ray.streaming.operator.impl.SinkOperator;
+import io.ray.streaming.operator.impl.SinkOperator;
 
 /**
  * Represents a sink of the DataStream.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/stream/DataStreamSource.java

@@ -1,11 +1,11 @@
-package org.ray.streaming.api.stream;
+package io.ray.streaming.api.stream;
 
+import io.ray.streaming.api.context.StreamingContext;
+import io.ray.streaming.api.function.impl.SourceFunction;
+import io.ray.streaming.api.function.internal.CollectionSourceFunction;
+import io.ray.streaming.api.partition.impl.RoundRobinPartition;
+import io.ray.streaming.operator.impl.SourceOperator;
 import java.util.Collection;
-import org.ray.streaming.api.context.StreamingContext;
-import org.ray.streaming.api.function.impl.SourceFunction;
-import org.ray.streaming.api.function.internal.CollectionSourceFunction;
-import org.ray.streaming.api.partition.impl.RoundRobinPartition;
-import org.ray.streaming.operator.impl.SourceOperator;
 
 /**
  * Represents a source of the DataStream.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/stream/JoinStream.java

@@ -1,8 +1,8 @@
-package org.ray.streaming.api.stream;
+package io.ray.streaming.api.stream;
 
+import io.ray.streaming.api.function.impl.JoinFunction;
+import io.ray.streaming.api.function.impl.KeyFunction;
 import java.io.Serializable;
-import org.ray.streaming.api.function.impl.JoinFunction;
-import org.ray.streaming.api.function.impl.KeyFunction;
 
 /**
  * Represents a DataStream of two joined DataStream.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/stream/KeyDataStream.java

@@ -1,10 +1,10 @@
-package org.ray.streaming.api.stream;
+package io.ray.streaming.api.stream;
 
-import org.ray.streaming.api.function.impl.AggregateFunction;
-import org.ray.streaming.api.function.impl.ReduceFunction;
-import org.ray.streaming.api.partition.impl.KeyPartition;
-import org.ray.streaming.operator.StreamOperator;
-import org.ray.streaming.operator.impl.ReduceOperator;
+import io.ray.streaming.api.function.impl.AggregateFunction;
+import io.ray.streaming.api.function.impl.ReduceFunction;
+import io.ray.streaming.api.partition.impl.KeyPartition;
+import io.ray.streaming.operator.StreamOperator;
+import io.ray.streaming.operator.impl.ReduceOperator;
 
 /**
  * Represents a DataStream returned by a key-by operation.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/stream/Stream.java

@@ -1,13 +1,13 @@
-package org.ray.streaming.api.stream;
+package io.ray.streaming.api.stream;
 
+import io.ray.streaming.api.context.StreamingContext;
+import io.ray.streaming.api.partition.Partition;
+import io.ray.streaming.api.partition.impl.RoundRobinPartition;
+import io.ray.streaming.operator.StreamOperator;
+import io.ray.streaming.python.PythonOperator;
+import io.ray.streaming.python.PythonPartition;
+import io.ray.streaming.python.stream.PythonStream;
 import java.io.Serializable;
-import org.ray.streaming.api.context.StreamingContext;
-import org.ray.streaming.api.partition.Partition;
-import org.ray.streaming.api.partition.impl.RoundRobinPartition;
-import org.ray.streaming.operator.StreamOperator;
-import org.ray.streaming.python.PythonOperator;
-import org.ray.streaming.python.PythonPartition;
-import org.ray.streaming.python.stream.PythonStream;
 
 /**
  * Abstract base class of all stream types.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/stream/StreamSink.java

@@ -1,6 +1,6 @@
-package org.ray.streaming.api.stream;
+package io.ray.streaming.api.stream;
 
-import org.ray.streaming.operator.StreamOperator;
+import io.ray.streaming.operator.StreamOperator;
 
 /**
  * Represents a sink of the Stream.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/stream/StreamSource.java

@@ -1,4 +1,4 @@
-package org.ray.streaming.api.stream;
+package io.ray.streaming.api.stream;
 
 /**
  * A mark interface that represents a source of the Stream.

streaming/java/streaming-api/src/main/java/io/ray/streaming/api/stream/UnionStream.java

@@ -1,8 +1,8 @@
-package org.ray.streaming.api.stream;
+package io.ray.streaming.api.stream;
 
+import io.ray.streaming.operator.StreamOperator;
 import java.util.ArrayList;
 import java.util.List;
-import org.ray.streaming.operator.StreamOperator;
 
 /**
  * Represents a union DataStream.

streaming/java/streaming-api/src/main/java/io/ray/streaming/jobgraph/JobEdge.java

@@ -1,7 +1,7 @@
-package org.ray.streaming.jobgraph;
+package io.ray.streaming.jobgraph;
 
+import io.ray.streaming.api.partition.Partition;
 import java.io.Serializable;
-import org.ray.streaming.api.partition.Partition;
 
 /**
  * Job edge is connection and partition rules of upstream and downstream execution nodes.

streaming/java/streaming-api/src/main/java/io/ray/streaming/jobgraph/JobGraph.java

@@ -1,4 +1,4 @@
-package org.ray.streaming.jobgraph;
+package io.ray.streaming.jobgraph;
 
 import java.io.Serializable;
 import java.util.ArrayList;

streaming/java/streaming-api/src/main/java/io/ray/streaming/jobgraph/JobGraphBuilder.java

@@ -1,15 +1,15 @@
-package org.ray.streaming.jobgraph;
+package io.ray.streaming.jobgraph;
 
+import io.ray.streaming.api.stream.DataStream;
+import io.ray.streaming.api.stream.Stream;
+import io.ray.streaming.api.stream.StreamSink;
+import io.ray.streaming.api.stream.StreamSource;
+import io.ray.streaming.operator.StreamOperator;
+import io.ray.streaming.python.stream.PythonDataStream;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.atomic.AtomicInteger;
-import org.ray.streaming.api.stream.DataStream;
-import org.ray.streaming.api.stream.Stream;
-import org.ray.streaming.api.stream.StreamSink;
-import org.ray.streaming.api.stream.StreamSource;
-import org.ray.streaming.operator.StreamOperator;
-import org.ray.streaming.python.stream.PythonDataStream;
 
 public class JobGraphBuilder {
 

streaming/java/streaming-api/src/main/java/io/ray/streaming/jobgraph/JobVertex.java

@@ -1,9 +1,9 @@
-package org.ray.streaming.jobgraph;
+package io.ray.streaming.jobgraph;
 
 import com.google.common.base.MoreObjects;
+import io.ray.streaming.api.Language;
+import io.ray.streaming.operator.StreamOperator;
 import java.io.Serializable;
-import org.ray.streaming.api.Language;
-import org.ray.streaming.operator.StreamOperator;
 
 /**
  * Job vertex is a cell node where logic is executed.

streaming/java/streaming-api/src/main/java/io/ray/streaming/jobgraph/VertexType.java

@@ -1,4 +1,4 @@
-package org.ray.streaming.jobgraph;
+package io.ray.streaming.jobgraph;
 
 /**
  * Different roles for a node.

streaming/java/streaming-api/src/main/java/io/ray/streaming/message/KeyRecord.java

@@ -1,4 +1,4 @@
-package org.ray.streaming.message;
+package io.ray.streaming.message;
 
 
 public class KeyRecord<K, T> extends Record<T> {

streaming/java/streaming-api/src/main/java/io/ray/streaming/message/Message.java

@@ -1,4 +1,4 @@
-package org.ray.streaming.message;
+package io.ray.streaming.message;
 
 import com.google.common.collect.Lists;
 import java.io.Serializable;

streaming/java/streaming-api/src/main/java/io/ray/streaming/message/Record.java

@@ -1,4 +1,4 @@
-package org.ray.streaming.message;
+package io.ray.streaming.message;
 
 import java.io.Serializable;
 

streaming/java/streaming-api/src/main/java/io/ray/streaming/operator/OneInputOperator.java

@@ -1,6 +1,6 @@
-package org.ray.streaming.operator;
+package io.ray.streaming.operator;
 
-import org.ray.streaming.message.Record;
+import io.ray.streaming.message.Record;
 
 
 public interface OneInputOperator<T> extends Operator {

streaming/java/streaming-api/src/main/java/io/ray/streaming/operator/Operator.java

@@ -1,11 +1,11 @@
-package org.ray.streaming.operator;
+package io.ray.streaming.operator;
 
+import io.ray.streaming.api.Language;
+import io.ray.streaming.api.collector.Collector;
+import io.ray.streaming.api.context.RuntimeContext;
+import io.ray.streaming.api.function.Function;
 import java.io.Serializable;
 import java.util.List;
-import org.ray.streaming.api.Language;
-import org.ray.streaming.api.collector.Collector;
-import org.ray.streaming.api.context.RuntimeContext;
-import org.ray.streaming.api.function.Function;
 
 public interface Operator extends Serializable {
 

streaming/java/streaming-api/src/main/java/io/ray/streaming/operator/OperatorType.java

@@ -1,4 +1,4 @@
-package org.ray.streaming.operator;
+package io.ray.streaming.operator;
 
 public enum OperatorType {
   SOURCE,

streaming/java/streaming-api/src/main/java/io/ray/streaming/operator/StreamOperator.java

@@ -1,12 +1,12 @@
-package org.ray.streaming.operator;
+package io.ray.streaming.operator;
 
+import io.ray.streaming.api.Language;
+import io.ray.streaming.api.collector.Collector;
+import io.ray.streaming.api.context.RuntimeContext;
+import io.ray.streaming.api.function.Function;
+import io.ray.streaming.message.KeyRecord;
+import io.ray.streaming.message.Record;
 import java.util.List;
-import org.ray.streaming.api.Language;
-import org.ray.streaming.api.collector.Collector;
-import org.ray.streaming.api.context.RuntimeContext;
-import org.ray.streaming.api.function.Function;
-import org.ray.streaming.message.KeyRecord;
-import org.ray.streaming.message.Record;
 
 public abstract class StreamOperator<F extends Function> implements Operator {
   protected String name;

streaming/java/streaming-api/src/main/java/io/ray/streaming/operator/TwoInputOperator.java

@@ -1,6 +1,6 @@
-package org.ray.streaming.operator;
+package io.ray.streaming.operator;
 
-import org.ray.streaming.message.Record;
+import io.ray.streaming.message.Record;
 
 
 public interface TwoInputOperator<T, O> extends Operator {

streaming/java/streaming-api/src/main/java/io/ray/streaming/operator/impl/FilterOperator.java

@@ -1,9 +1,9 @@
-package org.ray.streaming.operator.impl;
+package io.ray.streaming.operator.impl;
 
-import org.ray.streaming.api.function.impl.FilterFunction;
-import org.ray.streaming.message.Record;
-import org.ray.streaming.operator.OneInputOperator;
-import org.ray.streaming.operator.StreamOperator;
+import io.ray.streaming.api.function.impl.FilterFunction;
+import io.ray.streaming.message.Record;
+import io.ray.streaming.operator.OneInputOperator;
+import io.ray.streaming.operator.StreamOperator;
 
 public class FilterOperator<T> extends StreamOperator<FilterFunction<T>> implements
     OneInputOperator<T> {

streaming/java/streaming-api/src/main/java/io/ray/streaming/operator/impl/FlatMapOperator.java

@@ -1,13 +1,13 @@
-package org.ray.streaming.operator.impl;
+package io.ray.streaming.operator.impl;
 
+import io.ray.streaming.api.collector.CollectionCollector;
+import io.ray.streaming.api.collector.Collector;
+import io.ray.streaming.api.context.RuntimeContext;
+import io.ray.streaming.api.function.impl.FlatMapFunction;
+import io.ray.streaming.message.Record;
+import io.ray.streaming.operator.OneInputOperator;
+import io.ray.streaming.operator.StreamOperator;
 import java.util.List;
-import org.ray.streaming.api.collector.CollectionCollector;
-import org.ray.streaming.api.collector.Collector;
-import org.ray.streaming.api.context.RuntimeContext;
-import org.ray.streaming.api.function.impl.FlatMapFunction;
-import org.ray.streaming.message.Record;
-import org.ray.streaming.operator.OneInputOperator;
-import org.ray.streaming.operator.StreamOperator;
 
 public class FlatMapOperator<T, R> extends StreamOperator<FlatMapFunction<T, R>> implements
     OneInputOperator<T> {

streaming/java/streaming-api/src/main/java/io/ray/streaming/operator/impl/KeyByOperator.java

@@ -1,10 +1,10 @@
-package org.ray.streaming.operator.impl;
+package io.ray.streaming.operator.impl;
 
-import org.ray.streaming.api.function.impl.KeyFunction;
-import org.ray.streaming.message.KeyRecord;
-import org.ray.streaming.message.Record;
-import org.ray.streaming.operator.OneInputOperator;
-import org.ray.streaming.operator.StreamOperator;
+import io.ray.streaming.api.function.impl.KeyFunction;
+import io.ray.streaming.message.KeyRecord;
+import io.ray.streaming.message.Record;
+import io.ray.streaming.operator.OneInputOperator;
+import io.ray.streaming.operator.StreamOperator;
 
 public class KeyByOperator<T, K> extends StreamOperator<KeyFunction<T, K>> implements
     OneInputOperator<T> {

streaming/java/streaming-api/src/main/java/io/ray/streaming/operator/impl/MapOperator.java

@@ -1,9 +1,9 @@
-package org.ray.streaming.operator.impl;
+package io.ray.streaming.operator.impl;
 
-import org.ray.streaming.api.function.impl.MapFunction;
-import org.ray.streaming.message.Record;
-import org.ray.streaming.operator.OneInputOperator;
-import org.ray.streaming.operator.StreamOperator;
+import io.ray.streaming.api.function.impl.MapFunction;
+import io.ray.streaming.message.Record;
+import io.ray.streaming.operator.OneInputOperator;
+import io.ray.streaming.operator.StreamOperator;
 
 
 public class MapOperator<T, R> extends StreamOperator<MapFunction<T, R>> implements

streaming/java/streaming-api/src/main/java/io/ray/streaming/operator/impl/ReduceOperator.java

@@ -1,15 +1,15 @@
-package org.ray.streaming.operator.impl;
+package io.ray.streaming.operator.impl;
 
+import io.ray.streaming.api.collector.Collector;
+import io.ray.streaming.api.context.RuntimeContext;
+import io.ray.streaming.api.function.impl.ReduceFunction;
+import io.ray.streaming.message.KeyRecord;
+import io.ray.streaming.message.Record;
+import io.ray.streaming.operator.OneInputOperator;
+import io.ray.streaming.operator.StreamOperator;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
-import org.ray.streaming.api.collector.Collector;
-import org.ray.streaming.api.context.RuntimeContext;
-import org.ray.streaming.api.function.impl.ReduceFunction;
-import org.ray.streaming.message.KeyRecord;
-import org.ray.streaming.message.Record;
-import org.ray.streaming.operator.OneInputOperator;
-import org.ray.streaming.operator.StreamOperator;
 
 public class ReduceOperator<K, T> extends StreamOperator<ReduceFunction<T>> implements
     OneInputOperator<T> {

streaming/java/streaming-api/src/main/java/io/ray/streaming/operator/impl/SinkOperator.java

@@ -1,9 +1,9 @@
-package org.ray.streaming.operator.impl;
+package io.ray.streaming.operator.impl;
 
-import org.ray.streaming.api.function.impl.SinkFunction;
-import org.ray.streaming.message.Record;
-import org.ray.streaming.operator.OneInputOperator;
-import org.ray.streaming.operator.StreamOperator;
+import io.ray.streaming.api.function.impl.SinkFunction;
+import io.ray.streaming.message.Record;
+import io.ray.streaming.operator.OneInputOperator;
+import io.ray.streaming.operator.StreamOperator;
 
 
 public class SinkOperator<T> extends StreamOperator<SinkFunction<T>> implements

streaming/java/streaming-api/src/main/java/io/ray/streaming/operator/impl/SourceOperator.java

@@ -1,13 +1,13 @@
-package org.ray.streaming.operator.impl;
+package io.ray.streaming.operator.impl;
 
+import io.ray.streaming.api.collector.Collector;
+import io.ray.streaming.api.context.RuntimeContext;
+import io.ray.streaming.api.function.impl.SourceFunction;
+import io.ray.streaming.api.function.impl.SourceFunction.SourceContext;
+import io.ray.streaming.message.Record;
+import io.ray.streaming.operator.OperatorType;
+import io.ray.streaming.operator.StreamOperator;
 import java.util.List;
-import org.ray.streaming.api.collector.Collector;
-import org.ray.streaming.api.context.RuntimeContext;
-import org.ray.streaming.api.function.impl.SourceFunction;
-import org.ray.streaming.api.function.impl.SourceFunction.SourceContext;
-import org.ray.streaming.message.Record;
-import org.ray.streaming.operator.OperatorType;
-import org.ray.streaming.operator.StreamOperator;
 
 public class SourceOperator<T> extends StreamOperator<SourceFunction<T>> {
 

streaming/java/streaming-api/src/main/java/io/ray/streaming/python/PythonFunction.java

@@ -1,6 +1,6 @@
-package org.ray.streaming.python;
+package io.ray.streaming.python;
 
-import org.ray.streaming.api.function.Function;
+import io.ray.streaming.api.function.Function;
 
 /**
  * Represents a user defined python function.

streaming/java/streaming-api/src/main/java/io/ray/streaming/python/PythonOperator.java

@@ -1,10 +1,10 @@
-package org.ray.streaming.python;
+package io.ray.streaming.python;
 
+import io.ray.streaming.api.Language;
+import io.ray.streaming.api.context.RuntimeContext;
+import io.ray.streaming.operator.OperatorType;
+import io.ray.streaming.operator.StreamOperator;
 import java.util.List;
-import org.ray.streaming.api.Language;
-import org.ray.streaming.api.context.RuntimeContext;
-import org.ray.streaming.operator.OperatorType;
-import org.ray.streaming.operator.StreamOperator;
 
 /**
  * Represents a {@link StreamOperator} that wraps python {@link PythonFunction}.

streaming/java/streaming-api/src/main/java/io/ray/streaming/python/PythonPartition.java

@@ -1,6 +1,6 @@
-package org.ray.streaming.python;
+package io.ray.streaming.python;
 
-import org.ray.streaming.api.partition.Partition;
+import io.ray.streaming.api.partition.Partition;
 
 /**
  * Represents a python partition function.

streaming/java/streaming-api/src/main/java/io/ray/streaming/python/stream/PythonDataStream.java

@@ -1,11 +1,11 @@
-package org.ray.streaming.python.stream;
+package io.ray.streaming.python.stream;
 
-import org.ray.streaming.api.context.StreamingContext;
-import org.ray.streaming.api.stream.Stream;
-import org.ray.streaming.python.PythonFunction;
-import org.ray.streaming.python.PythonFunction.FunctionInterface;
-import org.ray.streaming.python.PythonOperator;
-import org.ray.streaming.python.PythonPartition;
+import io.ray.streaming.api.context.StreamingContext;
+import io.ray.streaming.api.stream.Stream;
+import io.ray.streaming.python.PythonFunction;
+import io.ray.streaming.python.PythonFunction.FunctionInterface;
+import io.ray.streaming.python.PythonOperator;
+import io.ray.streaming.python.PythonPartition;
 
 /**
  * Represents a stream of data whose transformations will be executed in python.

streaming/java/streaming-api/src/main/java/io/ray/streaming/python/stream/PythonKeyDataStream.java

@@ -1,9 +1,9 @@
-package org.ray.streaming.python.stream;
+package io.ray.streaming.python.stream;
 
-import org.ray.streaming.python.PythonFunction;
-import org.ray.streaming.python.PythonFunction.FunctionInterface;
-import org.ray.streaming.python.PythonOperator;
-import org.ray.streaming.python.PythonPartition;
+import io.ray.streaming.python.PythonFunction;
+import io.ray.streaming.python.PythonFunction.FunctionInterface;
+import io.ray.streaming.python.PythonOperator;
+import io.ray.streaming.python.PythonPartition;
 
 /**
  * Represents a python DataStream returned by a key-by operation.

streaming/java/streaming-api/src/main/java/io/ray/streaming/python/stream/PythonStream.java

@@ -1,4 +1,4 @@
-package org.ray.streaming.python.stream;
+package io.ray.streaming.python.stream;
 
 /**
  * A marker interface used to identify all python streams.

streaming/java/streaming-api/src/main/java/io/ray/streaming/python/stream/PythonStreamSink.java

@@ -1,7 +1,7 @@
-package org.ray.streaming.python.stream;
+package io.ray.streaming.python.stream;
 
-import org.ray.streaming.api.stream.StreamSink;
-import org.ray.streaming.python.PythonOperator;
+import io.ray.streaming.api.stream.StreamSink;
+import io.ray.streaming.python.PythonOperator;
 
 /**
  * Represents a sink of the PythonStream.

streaming/java/streaming-api/src/main/java/io/ray/streaming/python/stream/PythonStreamSource.java

@@ -1,11 +1,11 @@
-package org.ray.streaming.python.stream;
+package io.ray.streaming.python.stream;
 
-import org.ray.streaming.api.context.StreamingContext;
-import org.ray.streaming.api.stream.StreamSource;
-import org.ray.streaming.python.PythonFunction;
-import org.ray.streaming.python.PythonFunction.FunctionInterface;
-import org.ray.streaming.python.PythonOperator;
-import org.ray.streaming.python.PythonPartition;
+import io.ray.streaming.api.context.StreamingContext;
+import io.ray.streaming.api.stream.StreamSource;
+import io.ray.streaming.python.PythonFunction;
+import io.ray.streaming.python.PythonFunction.FunctionInterface;
+import io.ray.streaming.python.PythonOperator;
+import io.ray.streaming.python.PythonPartition;
 
 /**
  * Represents a source of the PythonStream.

streaming/java/streaming-api/src/main/java/io/ray/streaming/schedule/JobScheduler.java

@@ -1,8 +1,8 @@
-package org.ray.streaming.schedule;
+package io.ray.streaming.schedule;
 
 
+import io.ray.streaming.jobgraph.JobGraph;
 import java.util.Map;
-import org.ray.streaming.jobgraph.JobGraph;
 
 /**
  * Interface of the job scheduler.

streaming/java/streaming-api/src/main/java/io/ray/streaming/util/Config.java

@@ -1,4 +1,4 @@
-package org.ray.streaming.util;
+package io.ray.streaming.util;
 
 public class Config {
 

streaming/java/streaming-api/src/test/java/io/ray/streaming/jobgraph/JobGraphBuilderTest.java

@@ -1,13 +1,13 @@
-package org.ray.streaming.jobgraph;
+package io.ray.streaming.jobgraph;
 
 import com.google.common.collect.Lists;
+import io.ray.streaming.api.context.StreamingContext;
+import io.ray.streaming.api.partition.impl.KeyPartition;
+import io.ray.streaming.api.partition.impl.RoundRobinPartition;
+import io.ray.streaming.api.stream.DataStream;
+import io.ray.streaming.api.stream.DataStreamSource;
+import io.ray.streaming.api.stream.StreamSink;
 import java.util.List;
-import org.ray.streaming.api.context.StreamingContext;
-import org.ray.streaming.api.partition.impl.KeyPartition;
-import org.ray.streaming.api.partition.impl.RoundRobinPartition;
-import org.ray.streaming.api.stream.DataStream;
-import org.ray.streaming.api.stream.DataStreamSource;
-import org.ray.streaming.api.stream.StreamSink;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.testng.Assert;

streaming/java/streaming-runtime/pom.xml

@@ -5,7 +5,7 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <parent>
         <artifactId>ray-streaming</artifactId>
-        <groupId>org.ray</groupId>
+        <groupId>io.ray</groupId>
         <version>0.1-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
@@ -17,17 +17,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.ray</groupId>
+            <groupId>io.ray</groupId>
             <artifactId>ray-api</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>org.ray</groupId>
+            <groupId>io.ray</groupId>
             <artifactId>ray-runtime</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>org.ray</groupId>
+            <groupId>io.ray</groupId>
             <artifactId>streaming-api</artifactId>
             <version>${project.version}</version>
         </dependency>

streaming/java/streaming-runtime/pom_template.xml

@@ -5,7 +5,7 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <parent>
         <artifactId>ray-streaming</artifactId>
-        <groupId>org.ray</groupId>
+        <groupId>io.ray</groupId>
         <version>0.1-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
@@ -17,17 +17,17 @@
 
     <dependencies>
         <dependency>
-            <groupId>org.ray</groupId>
+            <groupId>io.ray</groupId>
             <artifactId>ray-api</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>org.ray</groupId>
+            <groupId>io.ray</groupId>
             <artifactId>ray-runtime</artifactId>
             <version>${project.version}</version>
         </dependency>
         <dependency>
-            <groupId>org.ray</groupId>
+            <groupId>io.ray</groupId>
             <artifactId>streaming-api</artifactId>
             <version>${project.version}</version>
         </dependency>

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/config/Config.java

@@ -1,4 +1,4 @@
-package org.ray.streaming.runtime.config;
+package io.ray.streaming.runtime.config;
 
 import java.io.Serializable;
 import javax.accessibility.Accessible;

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/config/StreamingConfig.java

@@ -1,4 +1,4 @@
-package org.ray.streaming.runtime.config;
+package io.ray.streaming.runtime.config;
 
 import java.io.Serializable;
 import java.util.Map;

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/config/StreamingGlobalConfig.java

@@ -1,6 +1,7 @@
-package org.ray.streaming.runtime.config;
+package io.ray.streaming.runtime.config;
 
 import com.google.common.base.Preconditions;
+import io.ray.streaming.runtime.config.global.CommonConfig;
 import java.io.Serializable;
 import java.lang.reflect.Method;
 import java.util.HashMap;
@@ -8,7 +9,6 @@ import java.util.Map;
 import org.aeonbits.owner.Config.DefaultValue;
 import org.aeonbits.owner.Config.Key;
 import org.aeonbits.owner.ConfigFactory;
-import org.ray.streaming.runtime.config.global.CommonConfig;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/config/StreamingMasterConfig.java

@@ -1,8 +1,8 @@
-package org.ray.streaming.runtime.config;
+package io.ray.streaming.runtime.config;
 
+import io.ray.streaming.runtime.config.master.ResourceConfig;
 import java.util.Map;
 import org.aeonbits.owner.ConfigFactory;
-import org.ray.streaming.runtime.config.master.ResourceConfig;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/config/StreamingWorkerConfig.java

@@ -1,4 +1,4 @@
-package org.ray.streaming.runtime.config;
+package io.ray.streaming.runtime.config;
 
 import java.util.Map;
 import org.slf4j.Logger;

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/config/global/CommonConfig.java

@@ -1,6 +1,6 @@
-package org.ray.streaming.runtime.config.global;
+package io.ray.streaming.runtime.config.global;
 
-import org.ray.streaming.runtime.config.Config;
+import io.ray.streaming.runtime.config.Config;
 
 /**
  * Job common config.

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/config/master/ResourceConfig.java

@@ -1,6 +1,6 @@
-package org.ray.streaming.runtime.config.master;
+package io.ray.streaming.runtime.config.master;
 
-import org.ray.streaming.runtime.config.Config;
+import io.ray.streaming.runtime.config.Config;
 
 /**
  * Job resource management config.

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/config/types/SlotAssignStrategyType.java

@@ -1,4 +1,4 @@
-package org.ray.streaming.runtime.config.types;
+package io.ray.streaming.runtime.config.types;
 
 public enum SlotAssignStrategyType {
 

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/collector/OutputCollector.java

@@ -1,13 +1,13 @@
-package org.ray.streaming.runtime.core.collector;
+package io.ray.streaming.runtime.core.collector;
 
+import io.ray.runtime.serializer.Serializer;
+import io.ray.streaming.api.collector.Collector;
+import io.ray.streaming.api.partition.Partition;
+import io.ray.streaming.message.Record;
+import io.ray.streaming.runtime.transfer.ChannelID;
+import io.ray.streaming.runtime.transfer.DataWriter;
 import java.nio.ByteBuffer;
 import java.util.Collection;
-import org.ray.runtime.serializer.Serializer;
-import org.ray.streaming.api.collector.Collector;
-import org.ray.streaming.api.partition.Partition;
-import org.ray.streaming.message.Record;
-import org.ray.streaming.runtime.transfer.ChannelID;
-import org.ray.streaming.runtime.transfer.DataWriter;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/command/BatchInfo.java

@@ -1,4 +1,4 @@
-package org.ray.streaming.runtime.core.command;
+package io.ray.streaming.runtime.core.command;
 
 import java.io.Serializable;
 

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/common/AbstractID.java

@@ -1,11 +1,11 @@
-package org.ray.streaming.runtime.core.common;
+package io.ray.streaming.runtime.core.common;
 
 import java.io.Serializable;
 import java.util.Random;
 
 /**
  * Streaming system unique identity base class.
- * For example, ${@link org.ray.streaming.runtime.core.resource.ContainerID }
+ * For example, ${@link io.ray.streaming.runtime.core.resource.ContainerID }
  */
 public class AbstractID implements Comparable<AbstractID>, Serializable {
 

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/graph/ExecutionEdge.java

@@ -1,7 +1,7 @@
-package org.ray.streaming.runtime.core.graph;
+package io.ray.streaming.runtime.core.graph;
 
+import io.ray.streaming.api.partition.Partition;
 import java.io.Serializable;
-import org.ray.streaming.api.partition.Partition;
 
 /**
  * An edge in the physical execution graph.

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/graph/ExecutionGraph.java

@@ -1,18 +1,18 @@
-package org.ray.streaming.runtime.core.graph;
+package io.ray.streaming.runtime.core.graph;
 
+import io.ray.api.BaseActor;
 import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
-import org.ray.api.BaseActor;
 
 /**
  * Physical execution graph.
  *
  * <p>Notice: Temporary implementation for now to keep functional. This will be changed to
- * {@link org.ray.streaming.runtime.core.graph.executiongraph.ExecutionGraph} later when
+ * {@link io.ray.streaming.runtime.core.graph.executiongraph.ExecutionGraph} later when
  * new stream task implementation is ready.
  */
 public class ExecutionGraph implements Serializable {

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/graph/ExecutionNode.java

@@ -1,11 +1,11 @@
-package org.ray.streaming.runtime.core.graph;
+package io.ray.streaming.runtime.core.graph;
 
+import io.ray.streaming.api.Language;
+import io.ray.streaming.jobgraph.VertexType;
+import io.ray.streaming.operator.StreamOperator;
 import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.List;
-import org.ray.streaming.api.Language;
-import org.ray.streaming.jobgraph.VertexType;
-import org.ray.streaming.operator.StreamOperator;
 
 /**
  * A node in the physical execution graph.

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/graph/ExecutionTask.java

@@ -1,7 +1,7 @@
-package org.ray.streaming.runtime.core.graph;
+package io.ray.streaming.runtime.core.graph;
 
+import io.ray.api.BaseActor;
 import java.io.Serializable;
-import org.ray.api.BaseActor;
 
 /**
  * ExecutionTask is minimal execution unit.

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/graph/executiongraph/ExecutionEdge.java

@@ -1,8 +1,8 @@
-package org.ray.streaming.runtime.core.graph.executiongraph;
+package io.ray.streaming.runtime.core.graph.executiongraph;
 
 import com.google.common.base.MoreObjects;
+import io.ray.streaming.api.partition.Partition;
 import java.io.Serializable;
-import org.ray.streaming.api.partition.Partition;
 
 /**
  * An edge that connects two execution vertices.

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/graph/executiongraph/ExecutionGraph.java

@@ -1,4 +1,4 @@
-package org.ray.streaming.runtime.core.graph.executiongraph;
+package io.ray.streaming.runtime.core.graph.executiongraph;
 
 import java.io.Serializable;
 import java.util.ArrayList;

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/graph/executiongraph/ExecutionJobEdge.java

@@ -1,8 +1,8 @@
-package org.ray.streaming.runtime.core.graph.executiongraph;
+package io.ray.streaming.runtime.core.graph.executiongraph;
 
 import com.google.common.base.MoreObjects;
-import org.ray.streaming.api.partition.Partition;
-import org.ray.streaming.jobgraph.JobEdge;
+import io.ray.streaming.api.partition.Partition;
+import io.ray.streaming.jobgraph.JobEdge;
 
 /**
  * An edge that connects two execution job vertices.

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/graph/executiongraph/ExecutionJobVertex.java

@@ -1,20 +1,20 @@
-package org.ray.streaming.runtime.core.graph.executiongraph;
+package io.ray.streaming.runtime.core.graph.executiongraph;
 
 import com.google.common.base.MoreObjects;
 import com.google.common.base.Preconditions;
+import io.ray.api.RayActor;
+import io.ray.streaming.api.Language;
+import io.ray.streaming.jobgraph.JobVertex;
+import io.ray.streaming.jobgraph.VertexType;
+import io.ray.streaming.operator.StreamOperator;
+import io.ray.streaming.runtime.config.master.ResourceConfig;
+import io.ray.streaming.runtime.worker.JobWorker;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.atomic.AtomicInteger;
 import org.aeonbits.owner.ConfigFactory;
-import org.ray.api.RayActor;
-import org.ray.streaming.api.Language;
-import org.ray.streaming.jobgraph.JobVertex;
-import org.ray.streaming.jobgraph.VertexType;
-import org.ray.streaming.operator.StreamOperator;
-import org.ray.streaming.runtime.config.master.ResourceConfig;
-import org.ray.streaming.runtime.worker.JobWorker;
 
 /**
  * Physical job vertex.

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/graph/executiongraph/ExecutionVertex.java

@@ -1,20 +1,20 @@
-package org.ray.streaming.runtime.core.graph.executiongraph;
+package io.ray.streaming.runtime.core.graph.executiongraph;
 
 import com.google.common.base.MoreObjects;
+import io.ray.api.RayActor;
+import io.ray.api.id.ActorId;
+import io.ray.streaming.api.Language;
+import io.ray.streaming.jobgraph.VertexType;
+import io.ray.streaming.operator.StreamOperator;
+import io.ray.streaming.runtime.config.master.ResourceConfig;
+import io.ray.streaming.runtime.core.resource.ResourceType;
+import io.ray.streaming.runtime.core.resource.Slot;
+import io.ray.streaming.runtime.worker.JobWorker;
 import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
-import org.ray.api.RayActor;
-import org.ray.api.id.ActorId;
-import org.ray.streaming.api.Language;
-import org.ray.streaming.jobgraph.VertexType;
-import org.ray.streaming.operator.StreamOperator;
-import org.ray.streaming.runtime.config.master.ResourceConfig;
-import org.ray.streaming.runtime.core.resource.ResourceType;
-import org.ray.streaming.runtime.core.resource.Slot;
-import org.ray.streaming.runtime.worker.JobWorker;
 
 /**
  * Physical vertex, correspond to {@link ExecutionJobVertex}.

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/graph/executiongraph/ExecutionVertexState.java

@@ -1,4 +1,4 @@
-package org.ray.streaming.runtime.core.graph.executiongraph;
+package io.ray.streaming.runtime.core.graph.executiongraph;
 
 import java.io.Serializable;
 

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/processor/OneInputProcessor.java

@@ -1,7 +1,7 @@
-package org.ray.streaming.runtime.core.processor;
+package io.ray.streaming.runtime.core.processor;
 
-import org.ray.streaming.message.Record;
-import org.ray.streaming.operator.OneInputOperator;
+import io.ray.streaming.message.Record;
+import io.ray.streaming.operator.OneInputOperator;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/processor/ProcessBuilder.java

@@ -1,10 +1,10 @@
-package org.ray.streaming.runtime.core.processor;
+package io.ray.streaming.runtime.core.processor;
 
-import org.ray.streaming.operator.OneInputOperator;
-import org.ray.streaming.operator.OperatorType;
-import org.ray.streaming.operator.StreamOperator;
-import org.ray.streaming.operator.TwoInputOperator;
-import org.ray.streaming.operator.impl.SourceOperator;
+import io.ray.streaming.operator.OneInputOperator;
+import io.ray.streaming.operator.OperatorType;
+import io.ray.streaming.operator.StreamOperator;
+import io.ray.streaming.operator.TwoInputOperator;
+import io.ray.streaming.operator.impl.SourceOperator;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/processor/Processor.java

@@ -1,9 +1,9 @@
-package org.ray.streaming.runtime.core.processor;
+package io.ray.streaming.runtime.core.processor;
 
+import io.ray.streaming.api.collector.Collector;
+import io.ray.streaming.api.context.RuntimeContext;
 import java.io.Serializable;
 import java.util.List;
-import org.ray.streaming.api.collector.Collector;
-import org.ray.streaming.api.context.RuntimeContext;
 
 public interface Processor<T> extends Serializable {
 

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/processor/SourceProcessor.java

@@ -1,7 +1,7 @@
-package org.ray.streaming.runtime.core.processor;
+package io.ray.streaming.runtime.core.processor;
 
-import org.ray.streaming.message.Record;
-import org.ray.streaming.operator.impl.SourceOperator;
+import io.ray.streaming.message.Record;
+import io.ray.streaming.operator.impl.SourceOperator;
 
 /**
  * The processor for the stream sources, containing a SourceOperator.

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/processor/StreamProcessor.java

@@ -1,9 +1,9 @@
-package org.ray.streaming.runtime.core.processor;
+package io.ray.streaming.runtime.core.processor;
 
+import io.ray.streaming.api.collector.Collector;
+import io.ray.streaming.api.context.RuntimeContext;
+import io.ray.streaming.operator.Operator;
 import java.util.List;
-import org.ray.streaming.api.collector.Collector;
-import org.ray.streaming.api.context.RuntimeContext;
-import org.ray.streaming.operator.Operator;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/processor/TwoInputProcessor.java

@@ -1,7 +1,7 @@
-package org.ray.streaming.runtime.core.processor;
+package io.ray.streaming.runtime.core.processor;
 
-import org.ray.streaming.message.Record;
-import org.ray.streaming.operator.TwoInputOperator;
+import io.ray.streaming.message.Record;
+import io.ray.streaming.operator.TwoInputOperator;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/resource/Container.java

@@ -1,12 +1,12 @@
-package org.ray.streaming.runtime.core.resource;
+package io.ray.streaming.runtime.core.resource;
 
 import com.google.common.base.MoreObjects;
+import io.ray.api.id.UniqueId;
 import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
-import org.ray.api.id.UniqueId;
 
 /**
  * Resource manager unit abstraction.

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/resource/ContainerID.java

@@ -0,0 +1,9 @@
+package io.ray.streaming.runtime.core.resource;
+
+import io.ray.streaming.runtime.core.common.AbstractID;
+
+/**
+ * Container unique identifier.
+ */
+public class ContainerID extends AbstractID {
+}

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/resource/ResourceType.java

@@ -1,4 +1,4 @@
-package org.ray.streaming.runtime.core.resource;
+package io.ray.streaming.runtime.core.resource;
 
 /**
  * Key for different type of resources.

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/resource/Resources.java

@@ -1,13 +1,13 @@
-package org.ray.streaming.runtime.core.resource;
+package io.ray.streaming.runtime.core.resource;
 
 import com.google.common.base.MoreObjects;
+import io.ray.api.id.UniqueId;
+import io.ray.streaming.runtime.config.master.ResourceConfig;
 import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
-import org.ray.api.id.UniqueId;
-import org.ray.streaming.runtime.config.master.ResourceConfig;
 
 /**
  * Resource description of ResourceManager.

streaming/java/streaming-runtime/src/main/java/io/ray/streaming/runtime/core/resource/Slot.java

@@ -1,4 +1,4 @@
-package org.ray.streaming.runtime.core.resource;
+package io.ray.streaming.runtime.core.resource;
 
 import com.google.common.base.MoreObjects;
 import java.io.Serializable;