| /** |
| * 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 java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.DataInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.util.Arrays; |
| import java.util.Enumeration; |
| import java.util.List; |
| import java.util.Vector; |
| import javax.servlet.http.HttpServletResponse; |
| import junit.framework.TestCase; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.fs.FSInputStream; |
| import org.apache.hadoop.hdfs.server.namenode.StreamFile; |
| import org.mortbay.jetty.InclusiveByteRange; |
| import static org.junit.Assert.*; |
| |
| /* |
| Mock input stream class that always outputs the current position of the stream |
| */ |
| class MockFSInputStream extends FSInputStream { |
| long currentPos = 0; |
| public int read() throws IOException { |
| return (int)(currentPos++); |
| } |
| |
| public void close() throws IOException { |
| } |
| |
| public void seek(long pos) throws IOException { |
| currentPos = pos; |
| } |
| |
| public long getPos() throws IOException { |
| return currentPos; |
| } |
| |
| public boolean seekToNewSource(long targetPos) throws IOException { |
| return false; |
| } |
| } |
| |
| |
| class MockHttpServletResponse implements HttpServletResponse { |
| |
| private int status = -1; |
| |
| public MockHttpServletResponse() { |
| } |
| |
| public int getStatus() { |
| return status; |
| } |
| |
| |
| public void setStatus(int sc) { |
| status = sc; |
| } |
| |
| @SuppressWarnings("deprecation") |
| public void setStatus(int sc, java.lang.String sm) { |
| } |
| |
| public void addIntHeader(String name, int value) { |
| } |
| |
| public void setIntHeader(String name, int value) { |
| } |
| |
| public void addHeader(String name, String value) { |
| } |
| |
| public void setHeader(String name, String value) { |
| } |
| |
| public void addDateHeader(java.lang.String name, long date) { |
| } |
| |
| public void setDateHeader(java.lang.String name, long date) { |
| } |
| |
| public void sendRedirect(java.lang.String location) { |
| } |
| |
| public void sendError(int e) { |
| } |
| |
| public void sendError(int a, java.lang.String b) { |
| } |
| |
| public String encodeRedirectUrl(java.lang.String a) { |
| return null; |
| } |
| |
| public String encodeUrl(java.lang.String url) { |
| return null; |
| } |
| |
| public String encodeRedirectURL(java.lang.String url) { |
| return null; |
| } |
| |
| public String encodeURL(java.lang.String url) { |
| return null; |
| } |
| |
| public boolean containsHeader(java.lang.String name) { |
| return false; |
| } |
| |
| public void addCookie(javax.servlet.http.Cookie cookie) { |
| } |
| |
| public java.util.Locale getLocale() { |
| return null; |
| } |
| |
| public void setLocale(java.util.Locale loc) { |
| } |
| |
| public void reset() { |
| } |
| |
| public boolean isCommitted() { |
| return false; |
| } |
| |
| public void resetBuffer() { |
| } |
| |
| public void flushBuffer() { |
| } |
| |
| public int getBufferSize() { |
| return 0; |
| } |
| |
| public void setBufferSize(int size) { |
| } |
| |
| public void setContentType(java.lang.String type) { |
| } |
| |
| public void setContentLength(int len) { |
| } |
| |
| public void setCharacterEncoding(java.lang.String charset) { |
| } |
| |
| public java.io.PrintWriter getWriter() { |
| return null; |
| } |
| |
| public javax.servlet.ServletOutputStream getOutputStream() { |
| return null; |
| } |
| |
| public java.lang.String getContentType() { |
| return null; |
| } |
| |
| public java.lang.String getCharacterEncoding() { |
| return null; |
| } |
| } |
| |
| |
| |
| public class TestStreamFile extends TestCase { |
| |
| private static final Log LOG = LogFactory.getLog(TestStreamFile.class); |
| |
| // return an array matching the output of mockfsinputstream |
| private static byte[] getOutputArray(int start, int count) { |
| byte[] a = new byte[count]; |
| |
| for (int i = 0; i < count; i++) { |
| a[i] = (byte)(start+i); |
| } |
| |
| return a; |
| } |
| |
| public void testWriteTo() throws IOException, InterruptedException { |
| |
| FSInputStream fsin = new MockFSInputStream(); |
| ByteArrayOutputStream os = new ByteArrayOutputStream(); |
| |
| // new int[]{s_1, c_1, s_2, c_2, ..., s_n, c_n} means to test |
| // reading c_i bytes starting at s_i |
| int[] pairs = new int[]{ 0, 10000, |
| 50, 100, |
| 50, 6000, |
| 1000, 2000, |
| 0, 1, |
| 0, 0, |
| 5000, 0, |
| }; |
| |
| assertTrue("Pairs array must be even", pairs.length % 2 == 0); |
| |
| for (int i = 0; i < pairs.length; i+=2) { |
| StreamFile.writeTo(fsin, os, pairs[i], pairs[i+1]); |
| assertArrayEquals("Reading " + pairs[i+1] |
| + " bytes from offset " + pairs[i], |
| getOutputArray(pairs[i], pairs[i+1]), |
| os.toByteArray()); |
| os.reset(); |
| } |
| |
| } |
| |
| private List strToRanges(String s, int contentLength) { |
| List<String> l = Arrays.asList(new String[]{"bytes="+s}); |
| Enumeration e = (new Vector<String>(l)).elements(); |
| return InclusiveByteRange.satisfiableRanges(e, contentLength); |
| } |
| |
| public void testSendPartialData() throws IOException, InterruptedException { |
| FSInputStream in = new MockFSInputStream(); |
| ByteArrayOutputStream os = new ByteArrayOutputStream(); |
| |
| // test if multiple ranges, then 416 |
| { |
| List ranges = strToRanges("0-,10-300", 500); |
| MockHttpServletResponse response = new MockHttpServletResponse(); |
| StreamFile.sendPartialData(in, os, response, 500, ranges); |
| assertEquals("Multiple ranges should result in a 416 error", |
| 416, response.getStatus()); |
| } |
| |
| // test if no ranges, then 416 |
| { |
| os.reset(); |
| MockHttpServletResponse response = new MockHttpServletResponse(); |
| StreamFile.sendPartialData(in, os, response, 500, null); |
| assertEquals("No ranges should result in a 416 error", |
| 416, response.getStatus()); |
| } |
| |
| // test if invalid single range (out of bounds), then 416 |
| { |
| List ranges = strToRanges("600-800", 500); |
| MockHttpServletResponse response = new MockHttpServletResponse(); |
| StreamFile.sendPartialData(in, os, response, 500, ranges); |
| assertEquals("Single (but invalid) range should result in a 416", |
| 416, response.getStatus()); |
| } |
| |
| |
| // test if one (valid) range, then 206 |
| { |
| List ranges = strToRanges("100-300", 500); |
| MockHttpServletResponse response = new MockHttpServletResponse(); |
| StreamFile.sendPartialData(in, os, response, 500, ranges); |
| assertEquals("Single (valid) range should result in a 206", |
| 206, response.getStatus()); |
| assertArrayEquals("Byte range from 100-300", |
| getOutputArray(100, 201), |
| os.toByteArray()); |
| } |
| |
| } |
| } |