| /** |
| * 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.hadoop.hdfs.server.namenode; |
| |
| import static org.apache.hadoop.hdfs.server.namenode.startupprogress.StartupProgressTestHelper.*; |
| import static org.junit.Assert.*; |
| import static org.mockito.Mockito.*; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.Map; |
| |
| import javax.servlet.ServletContext; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| |
| import com.google.common.collect.ImmutableMap; |
| import org.apache.hadoop.hdfs.server.namenode.startupprogress.StartupProgress; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.mortbay.util.ajax.JSON; |
| |
| public class TestStartupProgressServlet { |
| |
| private HttpServletRequest req; |
| private HttpServletResponse resp; |
| private ByteArrayOutputStream respOut; |
| private StartupProgress startupProgress; |
| private StartupProgressServlet servlet; |
| |
| @Before |
| public void setUp() throws Exception { |
| startupProgress = new StartupProgress(); |
| ServletContext context = mock(ServletContext.class); |
| when(context.getAttribute(NameNodeHttpServer.STARTUP_PROGRESS_ATTRIBUTE_KEY)) |
| .thenReturn(startupProgress); |
| servlet = mock(StartupProgressServlet.class); |
| when(servlet.getServletContext()).thenReturn(context); |
| doCallRealMethod().when(servlet).doGet(any(HttpServletRequest.class), |
| any(HttpServletResponse.class)); |
| req = mock(HttpServletRequest.class); |
| respOut = new ByteArrayOutputStream(); |
| PrintWriter writer = new PrintWriter(respOut); |
| resp = mock(HttpServletResponse.class); |
| when(resp.getWriter()).thenReturn(writer); |
| } |
| |
| @Test |
| public void testInitialState() throws Exception { |
| String respBody = doGetAndReturnResponseBody(); |
| assertNotNull(respBody); |
| |
| Map<String, Object> expected = ImmutableMap.<String, Object>builder() |
| .put("percentComplete", 0.0f) |
| .put("phases", Arrays.<Object>asList( |
| ImmutableMap.<String, Object>builder() |
| .put("name", "LoadingFsImage") |
| .put("desc", "Loading fsimage") |
| .put("status", "PENDING") |
| .put("percentComplete", 0.0f) |
| .put("steps", Collections.emptyList()) |
| .build(), |
| ImmutableMap.<String, Object>builder() |
| .put("name", "LoadingEdits") |
| .put("desc", "Loading edits") |
| .put("status", "PENDING") |
| .put("percentComplete", 0.0f) |
| .put("steps", Collections.emptyList()) |
| .build(), |
| ImmutableMap.<String, Object>builder() |
| .put("name", "SavingCheckpoint") |
| .put("desc", "Saving checkpoint") |
| .put("status", "PENDING") |
| .put("percentComplete", 0.0f) |
| .put("steps", Collections.emptyList()) |
| .build(), |
| ImmutableMap.<String, Object>builder() |
| .put("name", "SafeMode") |
| .put("desc", "Safe mode") |
| .put("status", "PENDING") |
| .put("percentComplete", 0.0f) |
| .put("steps", Collections.emptyList()) |
| .build())) |
| .build(); |
| |
| assertEquals(JSON.toString(expected), filterJson(respBody)); |
| } |
| |
| @Test |
| public void testRunningState() throws Exception { |
| setStartupProgressForRunningState(startupProgress); |
| String respBody = doGetAndReturnResponseBody(); |
| assertNotNull(respBody); |
| |
| Map<String, Object> expected = ImmutableMap.<String, Object>builder() |
| .put("percentComplete", 0.375f) |
| .put("phases", Arrays.<Object>asList( |
| ImmutableMap.<String, Object>builder() |
| .put("name", "LoadingFsImage") |
| .put("desc", "Loading fsimage") |
| .put("status", "COMPLETE") |
| .put("percentComplete", 1.0f) |
| .put("steps", Collections.<Object>singletonList( |
| ImmutableMap.<String, Object>builder() |
| .put("name", "Inodes") |
| .put("desc", "inodes") |
| .put("count", 100L) |
| .put("total", 100L) |
| .put("percentComplete", 1.0f) |
| .build() |
| )) |
| .build(), |
| ImmutableMap.<String, Object>builder() |
| .put("name", "LoadingEdits") |
| .put("desc", "Loading edits") |
| .put("status", "RUNNING") |
| .put("percentComplete", 0.5f) |
| .put("steps", Collections.<Object>singletonList( |
| ImmutableMap.<String, Object>builder() |
| .put("count", 100L) |
| .put("file", "file") |
| .put("size", 1000L) |
| .put("total", 200L) |
| .put("percentComplete", 0.5f) |
| .build() |
| )) |
| .build(), |
| ImmutableMap.<String, Object>builder() |
| .put("name", "SavingCheckpoint") |
| .put("desc", "Saving checkpoint") |
| .put("status", "PENDING") |
| .put("percentComplete", 0.0f) |
| .put("steps", Collections.emptyList()) |
| .build(), |
| ImmutableMap.<String, Object>builder() |
| .put("name", "SafeMode") |
| .put("desc", "Safe mode") |
| .put("status", "PENDING") |
| .put("percentComplete", 0.0f) |
| .put("steps", Collections.emptyList()) |
| .build())) |
| .build(); |
| |
| assertEquals(JSON.toString(expected), filterJson(respBody)); |
| } |
| |
| @Test |
| public void testFinalState() throws Exception { |
| setStartupProgressForFinalState(startupProgress); |
| String respBody = doGetAndReturnResponseBody(); |
| assertNotNull(respBody); |
| |
| Map<String, Object> expected = ImmutableMap.<String, Object>builder() |
| .put("percentComplete", 1.0f) |
| .put("phases", Arrays.<Object>asList( |
| ImmutableMap.<String, Object>builder() |
| .put("name", "LoadingFsImage") |
| .put("desc", "Loading fsimage") |
| .put("status", "COMPLETE") |
| .put("percentComplete", 1.0f) |
| .put("steps", Collections.<Object>singletonList( |
| ImmutableMap.<String, Object>builder() |
| .put("name", "Inodes") |
| .put("desc", "inodes") |
| .put("count", 100L) |
| .put("total", 100L) |
| .put("percentComplete", 1.0f) |
| .build() |
| )) |
| .build(), |
| ImmutableMap.<String, Object>builder() |
| .put("name", "LoadingEdits") |
| .put("desc", "Loading edits") |
| .put("status", "COMPLETE") |
| .put("percentComplete", 1.0f) |
| .put("steps", Collections.<Object>singletonList( |
| ImmutableMap.<String, Object>builder() |
| .put("count", 200L) |
| .put("file", "file") |
| .put("size", 1000L) |
| .put("total", 200L) |
| .put("percentComplete", 1.0f) |
| .build() |
| )) |
| .build(), |
| ImmutableMap.<String, Object>builder() |
| .put("name", "SavingCheckpoint") |
| .put("desc", "Saving checkpoint") |
| .put("status", "COMPLETE") |
| .put("percentComplete", 1.0f) |
| .put("steps", Collections.<Object>singletonList( |
| ImmutableMap.<String, Object>builder() |
| .put("name", "Inodes") |
| .put("desc", "inodes") |
| .put("count", 300L) |
| .put("total", 300L) |
| .put("percentComplete", 1.0f) |
| .build() |
| )) |
| .build(), |
| ImmutableMap.<String, Object>builder() |
| .put("name", "SafeMode") |
| .put("desc", "Safe mode") |
| .put("status", "COMPLETE") |
| .put("percentComplete", 1.0f) |
| .put("steps", Collections.<Object>singletonList( |
| ImmutableMap.<String, Object>builder() |
| .put("name", "AwaitingReportedBlocks") |
| .put("desc", "awaiting reported blocks") |
| .put("count", 400L) |
| .put("total", 400L) |
| .put("percentComplete", 1.0f) |
| .build() |
| )) |
| .build())) |
| .build(); |
| |
| assertEquals(JSON.toString(expected), filterJson(respBody)); |
| } |
| |
| /** |
| * Calls doGet on the servlet, captures the response body as a string, and |
| * returns it to the caller. |
| * |
| * @return String response body |
| * @throws IOException thrown if there is an I/O error |
| */ |
| private String doGetAndReturnResponseBody() throws IOException { |
| servlet.doGet(req, resp); |
| return new String(respOut.toByteArray(), "UTF-8"); |
| } |
| |
| /** |
| * Filters the given JSON response body, removing elements that would impede |
| * testing. Specifically, it removes elapsedTime fields, because we cannot |
| * predict the exact values. |
| * |
| * @param str String to filter |
| * @return String filtered value |
| */ |
| private String filterJson(String str) { |
| return str.replaceAll("\"elapsedTime\":\\d+\\,", "") |
| .replaceAll("\\,\"elapsedTime\":\\d+", ""); |
| } |
| } |