Bazel build for the combined GRPC runtime jar file

Change-Id: I76ff5f1b81a0985cb45c70c8f63640668207cd4e
diff --git a/tools/build/bazel/grpc_workspace.bzl b/tools/build/bazel/grpc_workspace.bzl
new file mode 100644
index 0000000..826d304
--- /dev/null
+++ b/tools/build/bazel/grpc_workspace.bzl
@@ -0,0 +1,92 @@
+"""
+ Copyright 2018-present Open Networking Foundation
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+"""
+
+
+"""
+    Workspace to build GRPC java binaries. please see the injected bazel build file
+    grpc_BUILD for additional information.
+"""
+
+def generate_grpc():
+    native.new_http_archive(
+        name = "grpc_src_zip_131",
+        urls = ["https://github.com/grpc/grpc-java/archive/v1.3.1.zip"],
+        sha256 = "c529b4c2d80a6df8ddc0aa25d7599e46ffcd155cb67122513f8fb536cd96eca4",
+        build_file = "//tools/build/bazel:grpc_BUILD",
+        strip_prefix = "grpc-java-1.3.1",
+    )
+
+def generated_maven_jars():
+    native.maven_jar(
+        name = "guava",
+        artifact = "com.google.guava:guava:22.0",
+        sha1 = "3564ef3803de51fb0530a8377ec6100b33b0d073",
+    )
+
+    native.maven_jar(
+        name = "google_instrumentation_0_3_0",
+        artifact = "com.google.instrumentation:instrumentation-api:0.3.0",
+        sha1 = "a2e145e7a7567c6372738f5c5a6f3ba6407ac354",
+    )
+
+    native.maven_jar(
+        name = "javax_annotation_api",
+        artifact = "javax.annotation:javax.annotation-api:1.2",
+        sha1 = "479c1e06db31c432330183f5cae684163f186146",
+    )
+
+    native.maven_jar(
+        name = "jsr305",
+        artifact = "com.google.code.findbugs:jsr305:3.0.1",
+        sha1 = "f7be08ec23c21485b9b5a1cf1654c2ec8c58168d",
+    )
+
+    native.java_library(
+        name = "google_errorprone_2_0_19",
+        visibility = ["//visibility:public"],
+        exports = ["@google_errorprone_2_0_19//jar"],
+    )
+
+def generated_java_libraries():
+    native.java_library(
+        name = "guava",
+        visibility = ["//visibility:public"],
+        exports = ["@guava//jar"],
+    )
+
+    native.java_library(
+        name = "google_instrumentation_0_3_0",
+        visibility = ["//visibility:public"],
+        exports = ["@google_instrumentation_0_3_0//jar"],
+    )
+
+    native.java_library(
+        name = "javax_annotation_api",
+        visibility = ["//visibility:public"],
+        exports = ["@javax_annotation_api//jar"],
+    )
+
+    native.java_library(
+        name = "jsr305",
+        visibility = ["//visibility:public"],
+        exports = ["@jsr305//jar"],
+    )
+
+    native.java_library(
+        name = "google_errorprone_2_0_19",
+        visibility = ["//visibility:public"],
+        exports = ["@google_errorprone_2_0_19//jar"],
+    )