| /* |
| * 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 |
| * |
| * http://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. |
| */ |
| package org.apache.calcite.avatica.remote; |
| |
| import org.junit.Test; |
| import org.mockito.Mockito; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.net.HttpURLConnection; |
| import java.net.URL; |
| import java.nio.charset.StandardCharsets; |
| |
| import static org.junit.Assert.assertArrayEquals; |
| |
| /** |
| * Tests for the HTTP transport. |
| */ |
| public class AvaticaHttpClientTest { |
| private static final String REQUEST = |
| "{\"request\":\"createStatement\",\"connectionId\":\"8f3f28ee-d0bb-4cdb-a4b1-8f6e8476c534\"}"; |
| private static final String RESPONSE = |
| "{\"response\":\"createStatement\",\"connectionId\":" |
| + "\"8f3f28ee-d0bb-4cdb-a4b1-8f6e8476c534\",\"statementId\":1608176856}"; |
| |
| @Test |
| public void testRetryOnUnavailable() throws Exception { |
| // HTTP-503, try again |
| URL url = new URL("http://127.0.0.1:8765"); |
| final HttpURLConnection cnxn = Mockito.mock(HttpURLConnection.class); |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| ByteArrayInputStream bais = new ByteArrayInputStream(RESPONSE.getBytes(StandardCharsets.UTF_8)); |
| |
| // Create the HTTP client |
| AvaticaHttpClientImpl client = new AvaticaHttpClientImpl(url) { |
| @Override HttpURLConnection openConnection() throws IOException { |
| return cnxn; |
| } |
| }; |
| |
| // HTTP 503 then 200 |
| Mockito.when(cnxn.getResponseCode()).thenReturn(HttpURLConnection.HTTP_UNAVAILABLE, |
| HttpURLConnection.HTTP_OK); |
| |
| Mockito.when(cnxn.getOutputStream()).thenReturn(baos); |
| Mockito.when(cnxn.getInputStream()).thenReturn(bais); |
| |
| byte[] response = client.send(REQUEST.getBytes(StandardCharsets.UTF_8)); |
| |
| assertArrayEquals(RESPONSE.getBytes(StandardCharsets.UTF_8), response); |
| } |
| |
| @Test(expected = RuntimeException.class) |
| public void testServerError() throws Exception { |
| // HTTP 500 should error out |
| URL url = new URL("http://127.0.0.1:8765"); |
| final HttpURLConnection cnxn = Mockito.mock(HttpURLConnection.class); |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| |
| // Create the HTTP client |
| AvaticaHttpClientImpl client = new AvaticaHttpClientImpl(url) { |
| @Override HttpURLConnection openConnection() throws IOException { |
| return cnxn; |
| } |
| }; |
| |
| // HTTP 500 |
| Mockito.when(cnxn.getResponseCode()).thenReturn(HttpURLConnection.HTTP_INTERNAL_ERROR); |
| |
| Mockito.when(cnxn.getOutputStream()).thenReturn(baos); |
| |
| // Should throw an RTE |
| client.send(REQUEST.getBytes(StandardCharsets.UTF_8)); |
| } |
| |
| } |
| |
| // End AvaticaHttpClientTest.java |