introduce Context service

build.gradle

@@ -30,6 +30,7 @@ dependencies {
     implementation 'org.springframework.boot:spring-boot-starter-web'
     implementation 'org.liquibase:liquibase-core'
     implementation 'org.springframework.data:spring-data-rest-hal-explorer'
+    implementation 'com.vladmihalcea:hibernate-types-55:2.17.1'
 
     compileOnly 'org.projectlombok:lombok'
 

src/main/java/net/hostsharing/hsadminng/config/PostgreSQL95CustomDialect.java

@@ -0,0 +1,13 @@
+package net.hostsharing.hsadminng.config;
+
+import com.vladmihalcea.hibernate.type.array.StringArrayType;
+import org.hibernate.dialect.PostgreSQL95Dialect;
+
+@SuppressWarnings("unused") // configured in application.yml
+public class PostgreSQL95CustomDialect extends PostgreSQL95Dialect {
+
+    public PostgreSQL95CustomDialect() {
+        this.registerHibernateType(2003, StringArrayType.class.getName());
+    }
+
+}

src/main/java/net/hostsharing/hsadminng/context/Context.java

@@ -0,0 +1,51 @@
+package net.hostsharing.hsadminng.context;
+
+import org.springframework.stereotype.Service;
+
+import javax.persistence.EntityManager;
+import javax.persistence.PersistenceContext;
+import javax.transaction.Transactional;
+
+@Service
+public class Context {
+
+    @PersistenceContext
+    private EntityManager em;
+
+    @Transactional(Transactional.TxType.MANDATORY)
+    public void setCurrentUser(final String userName) {
+        em.createNativeQuery(
+            String.format(
+                "set local hsadminng.currentUser = '%s';",
+                userName
+            )
+        ).executeUpdate();
+        assumeNoSpecialRole();
+    }
+
+    public String getCurrentUser() {
+        return String.valueOf(em.createNativeQuery("select currentUser()").getSingleResult());
+    }
+
+    @Transactional(Transactional.TxType.MANDATORY)
+    public void assumeRoles(final String roles) {
+        em.createNativeQuery(
+            String.format(
+                "set local hsadminng.assumedRoles = '%s';",
+                roles
+            )
+        ).executeUpdate();
+    }
+
+    @Transactional(Transactional.TxType.MANDATORY)
+    public void assumeNoSpecialRole() {
+        em.createNativeQuery(
+            "set local hsadminng.assumedRoles = '';"
+        ).executeUpdate();
+    }
+
+    public String[] getAssumedRoles() {
+        return (String[]) em.createNativeQuery("select assumedRoles()").getSingleResult();
+    }
+
+}

src/main/java/net/hostsharing/hsadminng/controller/TestController.java

@@ -1,5 +1,7 @@
-package net.hostsharing.hsadminng;
+package net.hostsharing.hsadminng.controller;
 
+import net.hostsharing.hsadminng.context.Context;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
@@ -15,6 +17,9 @@ public class TestController {
     @PersistenceContext
     private EntityManager em;
 
+    @Autowired
+    private Context context;
+
     @ResponseBody
     @RequestMapping(value = "/api/ping", method = RequestMethod.GET)
     public String ping() {
@@ -25,8 +30,8 @@ public class TestController {
     @ResponseBody
     @RequestMapping(value = "/api/currentUser", method = RequestMethod.GET)
     public String currentUser() {
-        em.createNativeQuery("SET LOCAL hsadminng.currentUser = 'mike@hostsharing.net';").executeUpdate();
-        em.createNativeQuery("SET LOCAL hsadminng.assumedRoles = '';").executeUpdate();
+        context.setCurrentUser("mike@hostsharing.net");
+
         final var query = em.createNativeQuery("select currentUser()");
         return query.getSingleResult() + "\n";
     }

src/main/resources/application.yml

@@ -10,5 +10,10 @@ spring:
         init:
             mode: never
 
+    jpa:
+        properties:
+            hibernate:
+                dialect: net.hostsharing.hsadminng.config.PostgreSQL95CustomDialect
+
 liquibase:
     contexts: dev

src/test/java/net/hostsharing/hsadminng/RbacIntegrationTests.java

@@ -1,26 +0,0 @@
-package net.hostsharing.hsadminng;
-
-import org.assertj.core.api.Assertions;
-import org.junit.jupiter.api.Test;
-import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
-
-import javax.persistence.EntityManager;
-import javax.persistence.PersistenceContext;
-import javax.transaction.Transactional;
-
-@DataJpaTest
-class RbacIntegrationTests {
-
-    @PersistenceContext
-    private EntityManager em;
-
-    @Test
-    @Transactional
-    void currentUser() {
-        em.createNativeQuery("SET LOCAL hsadminng.currentUser = 'mike@hostsharing.net';").executeUpdate();
-        em.createNativeQuery("SET LOCAL hsadminng.assumedRoles = '';").executeUpdate();
-
-        final var result = em.createNativeQuery("select currentUser()").getSingleResult();
-        Assertions.assertThat(result).isEqualTo("mike@hostsharing.net");
-    }
-}

src/test/java/net/hostsharing/hsadminng/context/ContextIntegrationTests.java

@@ -0,0 +1,43 @@
+package net.hostsharing.hsadminng.context;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
+import org.springframework.context.annotation.ComponentScan;
+
+import javax.transaction.Transactional;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+@DataJpaTest
+@ComponentScan(basePackageClasses = Context.class)
+class ContextIntegrationTests {
+
+    @Autowired
+    private Context context;
+
+    @Test
+    @Transactional
+    void setCurrentUser() {
+        context.setCurrentUser("mike@hostsharing.net");
+
+        final var currentUser = context.getCurrentUser();
+        assertThat(currentUser).isEqualTo("mike@hostsharing.net");
+
+        final var assumedRoles = context.getAssumedRoles();
+        assertThat(assumedRoles).isEmpty();
+    }
+
+    @Test
+    @Transactional
+    void assumeRoles() {
+        context.setCurrentUser("mike@hostsharing.net");
+        context.assumeRoles("customer#aaa.owner;customer#aab.owner");
+
+        final var currentUser = context.getCurrentUser();
+        assertThat(currentUser).isEqualTo("mike@hostsharing.net");
+
+        final var assumedRoles = context.getAssumedRoles();
+        assertThat(assumedRoles).containsExactlyInAnyOrder("customer#aaa.owner", "customer#aab.owner");
+    }
+}

src/test/resources/application.yml

@@ -12,7 +12,7 @@ spring:
         properties:
             hibernate:
                 default_schema: public
-                dialect: org.hibernate.dialect.PostgreSQLDialect
+                dialect: net.hostsharing.hsadminng.config.PostgreSQL95CustomDialect
         hibernate:
             ddl-auto: none
         show-sql: true
@@ -29,9 +29,5 @@ logging:
     level:
         liquibase: INFO
 
-    #    spring.datasource.driver-class-name=org.postgresql.Driver
-#    spring.datasource.url=${DB_URL}
-#    spring.datasource.username=${DB_USERNAME}
-#    spring.datasource.password=${DB_PASSWORD}
-
-#    spring.jpa.properties.hibernate.default-schema=public
+liquibase:
+    contexts: dev,tc