Implement conversion for Oracle TIMESTAMPZ (#1100)

Fixes #1092

Signed-off-by: Thomas Segismont <tsegismont@gmail.com>

Author: tsegismont

vertx-oracle-client/src/main/java/io/vertx/oracleclient/impl/Helper.java

@@ -15,7 +15,7 @@
 import io.vertx.core.VertxException;
 import io.vertx.core.impl.ContextInternal;
 import io.vertx.sqlclient.Tuple;
-import oracle.jdbc.OraclePreparedStatement;
+import oracle.sql.TIMESTAMPTZ;
 
 import java.math.BigDecimal;
 import java.sql.*;
@@ -191,6 +191,10 @@ public static Object convertSqlValue(Object value) throws SQLException {
       return ((Timestamp) value).toInstant().atOffset(ZoneOffset.UTC);
     }
 
+    if (value instanceof TIMESTAMPTZ) {
+      return ((TIMESTAMPTZ) value).toZonedDateTime().toOffsetDateTime();
+    }
+
     // large objects
     if (value instanceof Clob) {
       Clob c = (Clob) value;

vertx-oracle-client/src/test/java/io/vertx/oracleclient/test/OracleQueriesTest.java

@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2011-2021 Contributors to the Eclipse Foundation
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
+ * which is available at https://www.apache.org/licenses/LICENSE-2.0.
+ *
+ * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
+ */
+
+package io.vertx.oracleclient.test;
+
+import io.vertx.ext.unit.TestContext;
+import io.vertx.ext.unit.junit.VertxUnitRunner;
+import io.vertx.oracleclient.OraclePool;
+import io.vertx.oracleclient.test.junit.OracleRule;
+import io.vertx.sqlclient.PoolOptions;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.ClassRule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.time.OffsetDateTime;
+
+import static java.time.temporal.ChronoUnit.MINUTES;
+import static org.hamcrest.CoreMatchers.instanceOf;
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.junit.Assert.assertEquals;
+
+@RunWith(VertxUnitRunner.class)
+public class OracleQueriesTest extends OracleTestBase {
+
+  @ClassRule
+  public static OracleRule oracle = OracleRule.SHARED_INSTANCE;
+
+  OraclePool pool;
+
+  @Before
+  public void setUp() throws Exception {
+    pool = OraclePool.pool(vertx, oracle.options(), new PoolOptions());
+  }
+
+  @Test
+  public void testCurrentTimestampType(TestContext ctx) {
+    pool.query("SELECT CURRENT_TIMESTAMP FROM dual").execute(ctx.asyncAssertSuccess(rows -> {
+      ctx.verify(v -> {
+        assertEquals(1, rows.size());
+        Object value = rows.iterator().next().getValue(0);
+        assertThat(value, is(instanceOf(OffsetDateTime.class)));
+        assertEquals(0, MINUTES.between((OffsetDateTime) value, OffsetDateTime.now()));
+      });
+    }));
+  }
+
+  @After
+  public void tearDown(TestContext ctx) throws Exception {
+    pool.close(ctx.asyncAssertSuccess());
+  }
+}