Add tutorial files for ResultSet2JSON Article (#11912)

* Add tutorial files * Move script to new folder * Use Maven/H2 instead of JBang/DuckDB * Use Java 8 * Usen an older versio of JOOQ * Format according to Beldung Intellij guide * Remove dangling commit * Use 2-space indentation * Apply formatting from Eclipse * Add unit test * Add assertion * Change test names * Change method names Co-authored-by: root <root@localhost.localdomain> Co-authored-by: Alireza Ghasemi <alireza.ghasemi1@swisscom.com>
2022-05-16 17:34:55 +02:00
parent b3a7e039f1
commit 365f029e3a
4 changed files with 231 additions and 3 deletions
@@ -0,0 +1,75 @@
+package com.baeldung.resultset2json;
+
+import static com.baeldung.resultset2json.ResultSet2JSON.resultSet2JdbcWithoutJOOQ;
+import static com.baeldung.resultset2json.ResultSet2JSON.resultSet2JdbcUsingJOOQDefaultApproach;
+import static com.baeldung.resultset2json.ResultSet2JSON.resultSet2JdbcUsingCustomisedJOOQ;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+public class ResultSet2JSONUnitTest {
+  JSONObject object = new JSONObject(
+    "{\"records\":[[\"doe1\",\"7173\",\"John\",\"Doe\"],[\"smith3\",\"3722\",\"Dana\",\"Smith\"],[\"john22\",\"5490\",\"John\",\"Wang\"]],\"fields\":[{\"schema\":\"PUBLIC\",\"name\":\"USERNAME\",\"type\":\"VARCHAR\",\"table\":\"WORDS\"},{\"schema\":\"PUBLIC\",\"name\":\"ID\",\"type\":\"VARCHAR\",\"table\":\"WORDS\"},{\"schema\":\"PUBLIC\",\"name\":\"First name\",\"type\":\"VARCHAR\",\"table\":\"WORDS\"},{\"schema\":\"PUBLIC\",\"name\":\"Last name\",\"type\":\"VARCHAR\",\"table\":\"WORDS\"}]}");
+
+  JSONArray array = new JSONArray(
+    "[{\"USERNAME\":\"doe1\",\"First name\":\"John\",\"ID\":\"7173\",\"Last name\":\"Doe\"},{\"USERNAME\":\"smith3\",\"First name\":\"Dana\",\"ID\":\"3722\",\"Last name\":\"Smith\"},{\"USERNAME\":\"john22\",\"First name\":\"John\",\"ID\":\"5490\",\"Last name\":\"Wang\"}]");
+
+  @Test
+  void whenResultSetConvertedWithoutJOOQ_shouldMatchJSON() throws SQLException, ClassNotFoundException {
+    Class.forName("org.h2.Driver");
+    Connection dbConnection = DriverManager.getConnection("jdbc:h2:mem:rs2jdbc1", "user", "password");
+
+    // Create a table
+    Statement stmt = dbConnection.createStatement();
+    stmt.execute("CREATE TABLE words AS SELECT * FROM CSVREAD('./example.csv')");
+    ResultSet resultSet = stmt.executeQuery("SELECT * FROM words");
+
+    JSONArray result1 = resultSet2JdbcWithoutJOOQ(resultSet);
+
+    resultSet.close();
+
+    assertTrue(array.similar(result1));
+  }
+
+  @Test
+  void whenResultSetConvertedUsingJOOQDefaultApproach_shouldMatchJSON() throws SQLException, ClassNotFoundException {
+    Class.forName("org.h2.Driver");
+    Connection dbConnection = DriverManager.getConnection("jdbc:h2:mem:rs2jdbc2", "user", "password");
+    // Create a table
+    Statement stmt = dbConnection.createStatement();
+    stmt.execute("CREATE TABLE words AS SELECT * FROM CSVREAD('./example.csv')");
+    ResultSet resultSet = stmt.executeQuery("SELECT * FROM words");
+
+    JSONObject result2 = resultSet2JdbcUsingJOOQDefaultApproach(resultSet, dbConnection);
+
+    resultSet.close();
+
+    assertTrue(object.similar(result2));
+  }
+
+  @Test
+  void whenResultSetConvertedUsingCustomisedJOOQ_shouldMatchJSON() throws SQLException, ClassNotFoundException {
+    Class.forName("org.h2.Driver");
+    Connection dbConnection = DriverManager.getConnection("jdbc:h2:mem:rs2jdbc3", "user", "password");
+    // Create a table
+    Statement stmt = dbConnection.createStatement();
+    stmt.execute("CREATE TABLE words AS SELECT * FROM CSVREAD('./example.csv')");
+    ResultSet resultSet = stmt.executeQuery("SELECT * FROM words");
+
+    JSONArray result3 = resultSet2JdbcUsingCustomisedJOOQ(resultSet, dbConnection);
+
+    resultSet.close();
+
+    assertTrue(array.similar(result3));
+  }
+
+}