add toRuntimeException (#519)

airbyte-commons/src/main/java/io/airbyte/commons/concurrency/VoidCallable.java

@@ -26,6 +26,7 @@
 
 import java.util.concurrent.Callable;
 
+@FunctionalInterface
 public interface VoidCallable extends Callable<Void> {
 
   default @Override Void call() throws Exception {

airbyte-commons/src/main/java/io/airbyte/commons/lang/Exceptions.java

@@ -0,0 +1,69 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2020 Airbyte
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package io.airbyte.commons.lang;
+
+import java.util.concurrent.Callable;
+
+public class Exceptions {
+
+  /**
+   * Catch a checked exception and rethrow as a {@link RuntimeException}
+   *
+   * @param callable - function that throws a checked exception.
+   * @param <T> - return type of the function.
+   * @return object that the function returns.
+   */
+  public static <T> T toRuntime(Callable<T> callable) {
+    try {
+      return callable.call();
+    } catch (RuntimeException e) {
+      throw e;
+    } catch (Exception e) {
+      throw new RuntimeException(e);
+    }
+  }
+
+  /**
+   * Catch a checked exception and rethrow as a {@link RuntimeException}.
+   *
+   * @param voidCallable - function that throws a checked exception.
+   */
+  public static void toRuntime(Procedure voidCallable) {
+    try {
+      voidCallable.call();
+    } catch (RuntimeException e) {
+      throw e;
+    } catch (Exception e) {
+      throw new RuntimeException(e);
+    }
+  }
+
+  public interface Procedure {
+
+    void call() throws Exception;
+
+  }
+
+}

airbyte-commons/src/test/java/io/airbyte/commons/lang/ExceptionsTest.java

@@ -0,0 +1,70 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2020 Airbyte
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package io.airbyte.commons.lang;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import org.junit.jupiter.api.Test;
+
+class ExceptionsTest {
+
+  @Test
+  void testToRuntime() {
+    assertEquals("hello", Exceptions.toRuntime(() -> callable("hello", false)));
+    assertThrows(RuntimeException.class, () -> Exceptions.toRuntime(() -> callable("goodbye", true)));
+  }
+
+  @Test
+  void testToRuntimeVoid() {
+    List<String> list = new ArrayList<>();
+    assertThrows(RuntimeException.class, () -> Exceptions.toRuntime(() -> voidCallable(list, "hello", true)));
+    assertEquals(0, list.size());
+
+    Exceptions.toRuntime(() -> voidCallable(list, "goodbye", false));
+    assertEquals(1, list.size());
+    assertEquals("goodbye", list.get(0));
+  }
+
+  private String callable(String input, boolean shouldThrow) throws IOException {
+    if (shouldThrow) {
+      throw new IOException();
+    } else {
+      return input;
+    }
+  }
+
+  private void voidCallable(List<String> list, String input, boolean shouldThrow) throws IOException {
+    if (shouldThrow) {
+      throw new IOException();
+    } else {
+      list.add(input);
+    }
+  }
+
+}