chore: migrate java-spanner to monorepo

.github/CODEOWNERS

@@ -9,3 +9,4 @@
 /java-vertexai/   @googleapis/vertexai-team @googleapis/cloud-sdk-java-team
 /java-bigquerystorage/ @googleapis/bigquery-team @googleapis/cloud-sdk-java-team
 /java-bigquery/ @googleapis/bigquery-team @googleapis/cloud-sdk-java-team
+/java-spanner/ @googleapis/spanner-team @googleapis/cloud-sdk-java-team

.github/workflows/java-spanner-integration-tests-against-emulator.yaml

@@ -0,0 +1,45 @@
+on:
+  push:
+    branches:
+    - main
+  pull_request:
+name: java-spanner integration-tests-against-emulator
+jobs:
+  filter:
+    runs-on: ubuntu-latest
+    outputs:
+      library: ${{ steps.filter.outputs.library }}
+    steps:
+    - uses: actions/checkout@v4
+    - uses: dorny/paths-filter@v3
+      id: filter
+      with:
+        filters: |
+          library:
+            - 'java-spanner/**'
+  units:
+    needs: filter
+    if: ${{ needs.filter.outputs.library == 'true' }}
+    runs-on: ubuntu-latest
+
+    services:
+      emulator:
+        image: gcr.io/cloud-spanner-emulator/emulator:latest
+        ports:
+          - 9010:9010
+          - 9020:9020
+
+    steps:
+    - uses: actions/checkout@v6
+    - uses: actions/setup-java@v5
+      with:
+        distribution: temurin
+        java-version: 11
+    - name: Running tests
+      run: .kokoro/build.sh
+      env:
+        JOB_TYPE: test
+        BUILD_SUBDIR: java-spanner
+        SPANNER_EMULATOR_HOST: localhost:9010
+        GOOGLE_CLOUD_PROJECT: emulator-test-project
+        SUREFIRE_JVM_OPT: '-Penable-integration-tests -DskipUnitTests=true -Dspanner.testenv.instance="" -Dmaven.main.skip=true'

.kokoro/build.sh

@@ -240,9 +240,11 @@ case ${JOB_TYPE} in
                 if [ -f "${dir}/pom.xml" ] && [ "${dir}" != "." ]; then
                     # Filter out directories not participating in the default formatting reactor:
                     # - samples are handwritten by developers
+                    # - benchmarks are handwritten by developers
                     # - proto-*/grpc-* are generated code and should use the compiler format
                     # - *-bom/parents are POM-only and contain no Java source
                     if [[ "${dir}" != *"samples"* ]] && \
+                       [[ "$(basename "${dir}")" != *"benchmark"* ]] && \
                        [[ "$(basename "${dir}")" != "proto-google-"* ]] && \
                        [[ "$(basename "${dir}")" != "grpc-google-"* ]] && \
                        [[ "$(basename "${dir}")" != *"-bom" ]] && \

.kokoro/common.sh

@@ -23,6 +23,7 @@ excluded_modules=(
   'java-bigquerystorage'
   'java-datastore'
   'java-logging-logback'
+  'java-spanner'
 )
 
 function retry_with_backoff {

.kokoro/presubmit/spanner-graalvm-native-presubmit.cfg

@@ -0,0 +1,42 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-public-resources/graalvm_sdk_platform_a:3.57.0" # {x-version-update:google-cloud-shared-dependencies:current}
+}
+
+env_vars: {
+  key: "JOB_TYPE"
+  value: "graalvm-single"
+}
+
+# TODO: remove this after we've migrated all tests and scripts
+env_vars: {
+  key: "GCLOUD_PROJECT"
+  value: "gcloud-devel"
+}
+
+env_vars: {
+  key: "GOOGLE_CLOUD_PROJECT"
+  value: "gcloud-devel"
+}
+
+env_vars: {
+  key: "GOOGLE_APPLICATION_CREDENTIALS"
+  value: "secret_manager/java-it-service-account"
+}
+
+env_vars: {
+  key: "SECRET_MANAGER_KEYS"
+  value: "java-it-service-account"
+}
+
+env_vars: {
+  key: "IT_SERVICE_ACCOUNT_EMAIL"
+  value: "it-service-account@gcloud-devel.iam.gserviceaccount.com"
+}
+env_vars: {
+  key: "BUILD_SUBDIR"
+  value: "java-spanner"
+}

.kokoro/presubmit/spanner-integration.cfg

@@ -0,0 +1,39 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java11"
+}
+
+env_vars: {
+  key: "JOB_TYPE"
+  value: "integration-single"
+}
+
+# TODO: remove this after we've migrated all tests and scripts
+env_vars: {
+  key: "GCLOUD_PROJECT"
+  value: "gcloud-devel"
+}
+
+env_vars: {
+  key: "GOOGLE_CLOUD_PROJECT"
+  value: "gcloud-devel"
+}
+
+env_vars: {
+  key: "GOOGLE_APPLICATION_CREDENTIALS"
+  value: "secret_manager/java-it-service-account"
+}
+
+env_vars: {
+  key: "SECRET_MANAGER_KEYS"
+  value: "java-it-service-account"
+}
+
+
+env_vars: {
+  key: "BUILD_SUBDIR"
+  value: "java-spanner"
+}

gapic-libraries-bom/pom.xml

@@ -1242,6 +1242,13 @@
         <type>pom</type>
         <scope>import</scope>
       </dependency>
+      <dependency>
+        <groupId>com.google.cloud</groupId>
+        <artifactId>google-cloud-spanner-bom</artifactId>
+        <version>6.112.0</version><!-- {x-version-update:google-cloud-spanner:current} -->
+        <type>pom</type>
+        <scope>import</scope>
+      </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-spanneradapter-bom</artifactId>

generation/check_non_release_please_versions.sh

@@ -12,6 +12,7 @@ for pomFile in $(find . -mindepth 2 -name pom.xml | sort ); do
       [[ "${pomFile}" =~ .*java-datastore.* ]] || \
       [[ "${pomFile}" =~ .*java-logging-logback.* ]] || \
       [[ "${pomFile}" =~ .*java-bigquery.* ]] || \
+      [[ "${pomFile}" =~ .*java-spanner.* ]] || \
       [[ "${pomFile}" =~ .*.github*. ]]; then
     continue
   fi

generation_config.yaml

@@ -2464,6 +2464,32 @@ libraries:
   - proto_path: google/shopping/merchant/reviews/v1beta
   requires_billing: true
   library_name: shopping-merchant-reviews
+- api_shortname: spanner
+  name_pretty: Cloud Spanner
+  product_documentation: https://cloud.google.com/spanner/docs/
+  client_documentation: https://cloud.google.com/java/docs/reference/google-cloud-spanner/latest/history
+  api_description: is a fully managed, mission-critical,  relational database service
+    that offers transactional consistency at global scale, schemas, SQL (ANSI 2011
+    with extensions), and automatic, synchronous replication for high availability.
+    Be sure to activate the Cloud Spanner API on the Developer's Console to use Cloud
+    Spanner from your project.
+  issue_tracker: https://issuetracker.google.com/issues?q=componentid:190851%2B%20status:open
+  release_level: stable
+  language: java
+  min_java_version: 8
+  distribution_name: com.google.cloud:google-cloud-spanner
+  api_id: spanner.googleapis.com
+  transport: grpc
+  requires_billing: true
+  codeowner_team: '@googleapis/spanner-team'
+  library_type: GAPIC_COMBO
+  excluded_poms: google-cloud-spanner-bom,google-cloud-spanner
+  recommended_package: com.google.cloud.spanner
+  GAPICs:
+  - proto_path: google/spanner/admin/database/v1
+  - proto_path: google/spanner/admin/instance/v1
+  - proto_path: google/spanner/executor/v1
+  - proto_path: google/spanner/v1
 - api_shortname: spanneradapter
   name_pretty: Cloud Spanner Adapter API
   product_documentation: https://cloud.google.com/java/docs/reference/google-cloud-spanneradapter/latest/overview

java-spanner/.OwlBot-hermetic.yaml

@@ -0,0 +1,48 @@
+# Copyright 2021 Google LLC
+#
+# 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.
+
+deep-remove-regex:
+- /java-spanner/grpc-google-.*/src
+- /java-spanner/proto-google-.*/src
+- /java-spanner/google-cloud-spanner/src/main/java/com/google/cloud/spanner/v1
+- /java-spanner/google-cloud-spanner/src/main/java/com/google/cloud/spanner/admin
+deep-preserve-regex:
+- /java-spanner/google-.*/src/test/java/com/google/cloud/.*/v.*/it/IT.*Test.java
+- /java-spanner/proto-google-cloud-spanner-admin-database-v1/src/main/java/com/google/spanner/admin/database/v1/CryptoKeyName.java
+- /java-spanner/proto-google-cloud-spanner-admin-database-v1/src/main/java/com/google/spanner/admin/database/v1/CryptoKeyVersionName.java
+deep-copy-regex:
+- source: /google/spanner/(v.*)/.*-java/proto-google-.*/src
+  dest: /owl-bot-staging/java-spanner/$1/proto-google-cloud-spanner-$1/src
+- source: /google/spanner/(v.*)/.*-java/grpc-google-.*/src
+  dest: /owl-bot-staging/java-spanner/$1/grpc-google-cloud-spanner-$1/src
+- source: /google/spanner/(v.*)/.*-java/gapic-google-.*/src
+  dest: /owl-bot-staging/java-spanner/$1/google-cloud-spanner/src/
+- source: /google/spanner/admin/database/(v.*)/.*-java/proto-google-.*/src
+  dest: /owl-bot-staging/java-spanner/$1/proto-google-cloud-spanner-admin-database-$1/src
+- source: /google/spanner/admin/database/(v.*)/.*-java/grpc-google-.*/src
+  dest: /owl-bot-staging/java-spanner/$1/grpc-google-cloud-spanner-admin-database-$1/src
+- source: /google/spanner/admin/database/(v.*)/.*-java/gapic-google-.*/src
+  dest: /owl-bot-staging/java-spanner/$1/google-cloud-spanner/src/
+- source: /google/spanner/admin/instance/(v.*)/.*-java/proto-google-.*/src
+  dest: /owl-bot-staging/java-spanner/$1/proto-google-cloud-spanner-admin-instance-$1/src
+- source: /google/spanner/admin/instance/(v.*)/.*-java/grpc-google-.*/src
+  dest: /owl-bot-staging/java-spanner/$1/grpc-google-cloud-spanner-admin-instance-$1/src
+- source: /google/spanner/admin/instance/(v.*)/.*-java/gapic-google-.*/src
+  dest: /owl-bot-staging/java-spanner/$1/google-cloud-spanner/src/
+- source: /google/spanner/executor/(v.*)/.*-java/proto-google-.*/src
+  dest: /owl-bot-staging/java-spanner/$1/proto-google-cloud-spanner-executor-$1/src
+- source: /google/spanner/executor/(v.*)/.*-java/grpc-google-.*/src
+  dest: /owl-bot-staging/java-spanner/$1/grpc-google-cloud-spanner-executor-$1/src
+- source: /google/spanner/executor/(v.*)/.*-java/gapic-google-.*/src
+  dest: /owl-bot-staging/java-spanner/$1/google-cloud-spanner-executor/src/

java-spanner/.devcontainer/Dockerfile

@@ -0,0 +1,21 @@
+# Reference - https://github.com/microsoft/vscode-dev-containers/tree/main/containers/java-8/.devcontainer
+# [Choice] Debian OS version (use bullseye on local arm64/Apple Silicon): buster, bullseye
+# [Choice] Java version (use -bullseye variants on local arm64/Apple Silicon): 11, 17, 11-bullseye, 17-bullseye, 11-buster, 17-buster
+ARG VARIANT="bullseye"
+FROM mcr.microsoft.com/vscode/devcontainers/java:11-${VARIANT}
+
+# [Option] Install Maven
+ARG INSTALL_MAVEN="true"
+ARG MAVEN_VERSION=""
+# [Option] Install Gradle
+ARG INSTALL_GRADLE="false"
+ARG GRADLE_VERSION=""
+RUN if [ "${INSTALL_MAVEN}" = "true" ]; then su vscode -c "umask 0002 && . /usr/local/sdkman/bin/sdkman-init.sh && sdk install maven \"${MAVEN_VERSION}\""; fi \
+    && if [ "${INSTALL_GRADLE}" = "true" ]; then su vscode -c "umask 0002 && . /usr/local/sdkman/bin/sdkman-init.sh && sdk install gradle \"${GRADLE_VERSION}\""; fi
+
+# [Choice] Node.js version: none, lts/*, 16, 14, 12, 10
+ARG NODE_VERSION="lts/*"
+RUN if [ "${NODE_VERSION}" != "none" ]; then su vscode -c "umask 0002 && . /usr/local/share/nvm/nvm.sh && nvm install ${NODE_VERSION} 2>&1"; fi
+
+# install gloud sdk
+RUN echo "deb [signed-by=/usr/share/keyrings/cloud.google.gpg] http://packages.cloud.google.com/apt cloud-sdk main" | tee -a /etc/apt/sources.list.d/google-cloud-sdk.list && curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key --keyring /usr/share/keyrings/cloud.google.gpg  add - && apt-get update -y && apt-get install google-cloud-cli -y

java-spanner/.devcontainer/devcontainer.json

@@ -0,0 +1,43 @@
+{
+  "name": "Java 11",
+  "build": {
+    "dockerfile": "Dockerfile",
+    "args": {
+      // Use the VARIANT arg to pick a Debian OS version: buster, bullseye
+      // Use bullseye when running on local arm64/Apple Silicon.
+      "VARIANT": "bullseye",
+      // Options
+      "INSTALL_MAVEN": "true",
+      "INSTALL_GRADLE": "false",
+      "NODE_VERSION": "lts/*"
+    }
+  },
+
+  // Configure tool-specific properties.
+  "customizations": {
+    // Configure properties specific to VS Code.
+    "vscode": {
+      // Set *default* container specific settings.json values on container create.
+      "settings": {
+        "java.import.gradle.java.home": "/usr/local/sdkman/candidates/java/current",
+        "java.configuration.runtimes": [{
+          "default": true,
+          "name": "JavaSE-11",
+          "path": "/usr/local/sdkman/candidates/java/current"
+        }]
+      },
+
+      // Add the IDs of extensions you want installed when the container is created.
+      "extensions": [
+        "vscjava.vscode-java-pack",
+        "ms-azuretools.vscode-docker"
+      ]
+    }
+  },
+
+  // Use 'postCreateCommand' to run commands after the container is created.
+  "postCreateCommand": "bash .devcontainer/postCreate.sh",
+
+  // Comment out to connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
+  "remoteUser": "vscode"
+}

java-spanner/.devcontainer/postCreate.sh

@@ -0,0 +1,6 @@
+echo "Post Create Starting"
+
+mvn clean install -B -V -ntp \
+    -DskipTests=true \
+    -Dmaven.javadoc.skip=true \
+    -Dclirr.skip=true