Java tutorial
/* * 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.sling.launchpad.webapp.integrationtest; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import org.apache.commons.httpclient.Header; import org.apache.commons.httpclient.methods.GetMethod; import org.apache.sling.commons.testing.integration.HttpTestBase; /** * The <code>RangeStreamingTest</code> tests the Range request header support * for the StreamRendererServlet introduced with SLING-1814 */ public class RangeStreamingTest extends HttpTestBase { private String rootUrl; @Override protected void setUp() throws Exception { super.setUp(); // Create the test nodes under a path that's specific to this class to // allow collisions final String path = "/" + getClass().getSimpleName() + "/" + System.currentTimeMillis(); testClient.mkdirs(WEBDAV_BASE_URL, path); rootUrl = uploadTestScript(path, "rangestreaming.txt", "rangestreaming.txt"); } @Override protected void tearDown() throws Exception { testClient.delete(rootUrl); super.tearDown(); } public void test_full_range() throws IOException { GetMethod get = new GetMethod(rootUrl); int status = httpClient.executeMethod(get); assertEquals(200, status); assertEquals(79, get.getResponseContentLength()); } public void test_wrong_ranges() throws IOException { GetMethod get = new GetMethod(rootUrl); get.setRequestHeader(new Header("Range", "unit 1-10")); int status = httpClient.executeMethod(get); assertEquals("Expect 416 for unsupported unit", 416, status); get = new GetMethod(rootUrl); get.setRequestHeader(new Header("Range", "bytes 5")); status = httpClient.executeMethod(get); assertEquals("Expect 416 for missing dash", 416, status); get = new GetMethod(rootUrl); get.setRequestHeader(new Header("Range", "bytes -x")); status = httpClient.executeMethod(get); assertEquals("Expect 416 for illegal negative number", 416, status); get = new GetMethod(rootUrl); get.setRequestHeader(new Header("Range", "bytes -x")); status = httpClient.executeMethod(get); assertEquals("Expect 416 for illegal negative number", 416, status); get = new GetMethod(rootUrl); get.setRequestHeader(new Header("Range", "bytes y-10")); status = httpClient.executeMethod(get); assertEquals("Expect 416 for unparseable number", 416, status); get = new GetMethod(rootUrl); get.setRequestHeader(new Header("Range", "bytes 10-5")); status = httpClient.executeMethod(get); assertEquals("Expect 416 for end < start", 416, status); } public void test_single_range() throws IOException { GetMethod get = new GetMethod(rootUrl); get.setRequestHeader(new Header("Range", "bytes 0-9")); int status = httpClient.executeMethod(get); assertEquals("Expect 206/PARTIAL CONTENT", 206, status); assertEquals(10, get.getResponseContentLength()); assertEquals("The quick ", get.getResponseBodyAsString()); get = new GetMethod(rootUrl); get.setRequestHeader(new Header("Range", "bytes -10")); status = httpClient.executeMethod(get); assertEquals("Expect 206/PARTIAL CONTENT", 206, status); assertEquals(10, get.getResponseContentLength()); assertEquals("corpus sic", get.getResponseBodyAsString()); get = new GetMethod(rootUrl); get.setRequestHeader(new Header("Range", "bytes 16-38")); status = httpClient.executeMethod(get); assertEquals("Expect 206/PARTIAL CONTENT", 206, status); assertEquals(23, get.getResponseContentLength()); assertEquals("fox jumps over the lazy", get.getResponseBodyAsString()); } public void test_multiple_ranges() throws IOException { GetMethod get = new GetMethod(rootUrl); get.setRequestHeader(new Header("Range", "bytes 0-9,-10")); int status = httpClient.executeMethod(get); assertEquals("Expect 206/PARTIAL CONTENT", 206, status); String contentType = get.getResponseHeader("Content-Type").getValue(); assertTrue("Content Type must be multipart/byteranges", contentType.contains("multipart/byteranges")); String boundary = contentType.substring(contentType.indexOf("boundary=") + "boundary=".length()); BufferedReader reader = new BufferedReader(new InputStreamReader(get.getResponseBodyAsStream())); String line = reader.readLine(); while (!("--" + boundary).equals(line)) { line = reader.readLine(); } assertEquals("Expected content to start with boundary", "--" + boundary, line); assertEntityHeaders(reader, "text/plain", "bytes 0-9/79"); assertEquals("The quick ", reader.readLine()); assertEquals("Expected content to start with boundary", "--" + boundary, reader.readLine()); assertEntityHeaders(reader, "text/plain", "bytes 69-78/79"); assertEquals("corpus sic", reader.readLine()); char[] buf = new char[boundary.length() + 4]; reader.read(buf); assertEquals("Expected content to start with boundary", "--" + boundary + "--", new String(buf)); } private void assertEntityHeaders(final BufferedReader reader, final String expectedContentType, final String expectedRange) throws IOException { for (String line = reader.readLine(); line != null; line = reader.readLine()) { line = line.toLowerCase(); if (line.startsWith("content-type:")) { assertTrue("Wrong content type: " + line + "; expected=" + expectedContentType, line.contains(expectedContentType)); } else if (line.startsWith("content-range:")) { assertTrue("Wrong content range: " + line + "; expected=" + expectedRange, line.contains(expectedRange)); } else if (line.length() == 0) { return; } } // exhausted reader without reaching end of headers fail("Unexpected end of data"); } }