Add Narayana Transaction Logs QuickStart

README.md

@@ -131,6 +131,7 @@ See [CONTRIBUTING](CONTRIBUTING.md) for how to build these examples.
 * [Google Cloud Functions](./google-cloud-functions-quickstart): How to create Google Cloud Functions
 * [Google Cloud Functions HTTP](./google-cloud-functions-http-quickstart): How to bind our HTTP layer (JAX-RS, Servlet or Reactive Route) to Google Cloud Functions
 * [JTA](./jta-quickstart): How use JTA transactions with HTTP/REST
+* [Quarkus transaction logs in a database](https://quarkus.io/guides/transaction#jdbcstore) How to configure app for automatic transaction recovery
 * [Reactive Messaging with HTTP](./reactive-messaging-http-quickstart): How to consume and produce HTTP messages with Reactive Messaging
 * [Reactive Messaging with Web Sockets](./reactive-messaging-websockets-quickstart): How to consume and produce messages via Web Sockets with Reactive Messaging
 * [Elasticsearch](./elasticsearch-quickstart): How to use the Elasticsearch REST client and the Java API client

narayana-transaction-logs-quickstart/.dockerignore

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+*
+!target/*-runner
+!target/*-runner.jar
+!target/lib/*

narayana-transaction-logs-quickstart/.gitignore

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+# Eclipse
+.project
+.classpath
+.settings/
+bin/
+
+# IntelliJ
+.idea
+*.ipr
+*.iml
+*.iws
+
+# NetBeans
+nb-configuration.xml
+
+# Visual Studio Code
+.vscode
+
+# OSX
+.DS_Store
+
+# Vim
+*.swp
+*.swo
+
+# patch
+*.orig
+*.rej
+
+# Maven
+target/
+pom.xml.tag
+pom.xml.releaseBackup
+pom.xml.versionsBackup
+release.properties

narayana-transaction-logs-quickstart/.mvn/wrapper/maven-wrapper.properties

@@ -0,0 +1,18 @@
+# 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
+#
+#   https://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.
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.6/apache-maven-3.8.6-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.1/maven-wrapper-3.1.1.jar

narayana-transaction-logs-quickstart/README.md

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+Quarkus - Narayana - Transaction logs
+========================
+
+This QuickStart demonstrates how your Quarkus application can be configured for automatic transaction recovery.
+
+## Test crash recovery
+
+- build application: 
+  - `./mvnw clean package -DskipTests -DskipITs`
+- remove previous database volumes, so that we start with a clean sheet:
+  - `docker-compose down --volumes`
+- start database: 
+  - `docker compose up`
+- wait until container has started and is ready to accept connections
+- start application: 
+  - `java -jar ./target/quarkus-app/quarkus-run.jar`
+- send a message to make transaction and crash application: 
+  - `curl -v localhost:8080/transaction-logs/transaction-recovery`
+- inspect JDBC Object Store:
+  - connect to Postgres container:
+    - execute `docker exec -it $(docker ps | grep 'postgres' | awk '{print $1}') psql -U quarkus_test -W narayana_transaction_logs_db`
+    - enter password `quarkus_test`
+  - now you can see that JDBC object store contains transaction waiting for recovery:
+    - enter `SELECT * FROM quarkus_jbosststxtable;`
+  - table we were trying to insert when application crashed is empty:
+    - enter `SELECT * FROM audit_log;`
+- start application again:
+  - `java -jar ./target/quarkus-app/quarkus-run.jar`
+- in a moment, you will see that the `audit_log` database table contains 2 inserts:
+  - enter `SELECT * FROM audit_log;`
+    ```
+     id | message |   datasource    
+    ----+---------+-----------------
+      1 | crash   | <default>
+      2 | crash   | object-store-ds
+    ```

narayana-transaction-logs-quickstart/docker-compose.yml

@@ -0,0 +1,16 @@
+version: '2.4'
+
+services:
+  postgres:
+    container_name: narayana-transaction-logs-database
+    image: "postgres:latest"
+    restart: always
+    volumes:
+      - ./init-script.sql:/docker-entrypoint-initdb.d/init-script.sql
+    command: "--max_prepared_transactions=100"
+    environment:
+      POSTGRES_USER: "quarkus_test"
+      POSTGRES_PASSWORD: "quarkus_test"
+      POSTGRES_DB: "narayana_transaction_logs_db"
+    ports:
+      - "5432:5432"

narayana-transaction-logs-quickstart/init-script.sql

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+CREATE TABLE quarkus_jbosststxtable (statetype integer not null, hidden integer not null, typename character varying(255) not null, uidstring character varying(255) not null, objectstate bytea);
+CREATE TABLE quarkus_jbosststxtable_historical_data AS SELECT * FROM quarkus_jbosststxtable;
+CREATE OR REPLACE FUNCTION object_store_historical_data() RETURNS TRIGGER AS '
+    BEGIN
+        INSERT INTO quarkus_jbosststxtable_historical_data(statetype, hidden, typename, uidstring, objectstate) VALUES (NEW.statetype, NEW.hidden, NEW.typename, NEW.uidstring, NEW.objectstate);
+        RETURN NULL;
+    END;
+' LANGUAGE plpgsql;
+CREATE TRIGGER object_store_historical_data_trigger AFTER INSERT ON quarkus_jbosststxtable FOR EACH ROW EXECUTE FUNCTION object_store_historical_data();
+CREATE TABLE audit_log (id BIGSERIAL PRIMARY KEY, message VARCHAR(10), datasource VARCHAR(40));
+CREATE TABLE example (data VARCHAR(6) NOT NULL);
+INSERT INTO example VALUES ('first');
+INSERT INTO example VALUES ('second');
+INSERT INTO example VALUES ('third');