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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"><head><meta http-equiv="content-type" content="text/html; charset=ISO-8859-1" /><title>StreamingTest xref</title><link type="text/css" rel="stylesheet" href="../../../../stylesheet.css" /></head><body><pre><a name="1" href="#1">1</a> <em class="comment">/*</em><a name="2" href="#2">2</a> <em class="comment"> * Licensed to the Apache Software Foundation (ASF) under one or more</em><a name="3" href="#3">3</a> <em class="comment"> * contributor license agreements. See the NOTICE file distributed with</em><a name="4" href="#4">4</a> <em class="comment"> * this work for additional information regarding copyright ownership.</em><a name="5" href="#5">5</a> <em class="comment"> * The ASF licenses this file to You under the Apache License, Version 2.0</em><a name="6" href="#6">6</a> <em class="comment"> * (the "License"); you may not use this file except in compliance with</em><a name="7" href="#7">7</a> <em class="comment"> * the License. You may obtain a copy of the License at</em><a name="8" href="#8">8</a> <em class="comment"> *</em><a name="9" href="#9">9</a> <em class="comment"> * <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em><a name="10" href="#10">10</a> <em class="comment"> *</em><a name="11" href="#11">11</a> <em class="comment"> * Unless required by applicable law or agreed to in writing, software</em><a name="12" href="#12">12</a> <em class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</em><a name="13" href="#13">13</a> <em class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em><a name="14" href="#14">14</a> <em class="comment"> * See the License for the specific language governing permissions and</em><a name="15" href="#15">15</a> <em class="comment"> * limitations under the License.</em><a name="16" href="#16">16</a> <em class="comment"> */</em><a name="17" href="#17">17</a> <strong>package</strong> org.apache.commons.fileupload;<a name="18" href="#18">18</a> <a name="19" href="#19">19</a> <strong>import</strong> java.io.ByteArrayInputStream;<a name="20" href="#20">20</a> <strong>import</strong> java.io.ByteArrayOutputStream;<a name="21" href="#21">21</a> <strong>import</strong> java.io.FilterInputStream;<a name="22" href="#22">22</a> <strong>import</strong> java.io.IOException;<a name="23" href="#23">23</a> <strong>import</strong> java.io.InputStream;<a name="24" href="#24">24</a> <strong>import</strong> java.util.Iterator;<a name="25" href="#25">25</a> <strong>import</strong> java.util.List;<a name="26" href="#26">26</a> <strong>import</strong> javax.servlet.http.HttpServletRequest;<a name="27" href="#27">27</a> <a name="28" href="#28">28</a> <strong>import</strong> org.apache.commons.fileupload.FileUploadBase.FileUploadIOException;<a name="29" href="#29">29</a> <strong>import</strong> org.apache.commons.fileupload.FileUploadBase.IOFileUploadException;<a name="30" href="#30">30</a> <strong>import</strong> org.apache.commons.fileupload.disk.DiskFileItemFactory;<a name="31" href="#31">31</a> <strong>import</strong> org.apache.commons.fileupload.servlet.ServletFileUpload;<a name="32" href="#32">32</a> <strong>import</strong> org.apache.commons.fileupload.servlet.ServletRequestContext;<a name="33" href="#33">33</a> <a name="34" href="#34">34</a> <strong>import</strong> junit.framework.TestCase;<a name="35" href="#35">35</a> <a name="36" href="#36">36</a> <a name="37" href="#37">37</a> <em>/**</em><a name="38" href="#38">38</a> <em> * Unit test for items with varying sizes.</em><a name="39" href="#39">39</a> <em> */</em><a name="40" href="#40">40</a> <strong>public</strong> <strong>class</strong> <a href="../../../../org/apache/commons/fileupload/StreamingTest.html">StreamingTest</a> <strong>extends</strong> TestCase<a name="41" href="#41">41</a> {<a name="42" href="#42">42</a> <em>/**</em><a name="43" href="#43">43</a> <em> * Tests a file upload with varying file sizes.</em><a name="44" href="#44">44</a> <em> */</em><a name="45" href="#45">45</a> <strong>public</strong> <strong>void</strong> testFileUpload()<a name="46" href="#46">46</a> throws IOException, FileUploadException<a name="47" href="#47">47</a> {<a name="48" href="#48">48</a> byte[] request = newRequest();<a name="49" href="#49">49</a> List fileItems = parseUpload(request);<a name="50" href="#50">50</a> Iterator fileIter = fileItems.iterator();<a name="51" href="#51">51</a> <strong>int</strong> add = 16;<a name="52" href="#52">52</a> <strong>int</strong> num = 0;<a name="53" href="#53">53</a> <strong>for</strong> (<strong>int</strong> i = 0; i < 16384; i += add) {<a name="54" href="#54">54</a> <strong>if</strong> (++add == 32) {<a name="55" href="#55">55</a> add = 16;<a name="56" href="#56">56</a> }<a name="57" href="#57">57</a> FileItem item = (FileItem) fileIter.next();<a name="58" href="#58">58</a> assertEquals(<span class="string">"field"</span> + (num++), item.getFieldName());<a name="59" href="#59">59</a> byte[] bytes = item.get();<a name="60" href="#60">60</a> assertEquals(i, bytes.length);<a name="61" href="#61">61</a> <strong>for</strong> (<strong>int</strong> j = 0; j < i; j++) {<a name="62" href="#62">62</a> assertEquals((byte) j, bytes[j]);<a name="63" href="#63">63</a> }<a name="64" href="#64">64</a> }<a name="65" href="#65">65</a> assertTrue(!fileIter.hasNext());<a name="66" href="#66">66</a> }<a name="67" href="#67">67</a> <a name="68" href="#68">68</a> <a name="69" href="#69">69</a> <em>/**</em><a name="70" href="#70">70</a> <em> * Tests, whether an invalid request throws a proper</em><a name="71" href="#71">71</a> <em> * exception.</em><a name="72" href="#72">72</a> <em> */</em><a name="73" href="#73">73</a> <strong>public</strong> <strong>void</strong> testFileUploadException()<a name="74" href="#74">74</a> throws IOException, FileUploadException {<a name="75" href="#75">75</a> byte[] request = newRequest();<a name="76" href="#76">76</a> byte[] invalidRequest = <strong>new</strong> byte[request.length-11];<a name="77" href="#77">77</a> System.arraycopy(request, 0, invalidRequest, 0, request.length-11);<a name="78" href="#78">78</a> <strong>try</strong> {<a name="79" href="#79">79</a> parseUpload(invalidRequest);<a name="80" href="#80">80</a> fail(<span class="string">"Expected EndOfStreamException"</span>);<a name="81" href="#81">81</a> } <strong>catch</strong> (IOFileUploadException e) {<a name="82" href="#82">82</a> assertTrue(e.getCause() instanceof MultipartStream.MalformedStreamException);<a name="83" href="#83">83</a> }<a name="84" href="#84">84</a> }<a name="85" href="#85">85</a> <a name="86" href="#86">86</a> <em>/**</em><a name="87" href="#87">87</a> <em> * Tests, whether an IOException is properly delegated.</em><a name="88" href="#88">88</a> <em> */</em><a name="89" href="#89">89</a> <strong>public</strong> <strong>void</strong> testIOException()<a name="90" href="#90">90</a> throws IOException, FileUploadException {<a name="91" href="#91">91</a> byte[] request = newRequest();<a name="92" href="#92">92</a> InputStream stream = <strong>new</strong> FilterInputStream(<strong>new</strong> ByteArrayInputStream(request)){<a name="93" href="#93">93</a> <strong>private</strong> <strong>int</strong> num;<a name="94" href="#94">94</a> <strong>public</strong> <strong>int</strong> read() throws IOException {<a name="95" href="#95">95</a> <strong>if</strong> (++num > 123) {<a name="96" href="#96">96</a> <strong>throw</strong> <strong>new</strong> IOException(<span class="string">"123"</span>);<a name="97" href="#97">97</a> }<a name="98" href="#98">98</a> <strong>return</strong> <strong>super</strong>.read();<a name="99" href="#99">99</a> }<a name="100" href="#100">100</a> <strong>public</strong> <strong>int</strong> read(byte[] pB, <strong>int</strong> pOff, <strong>int</strong> pLen)<a name="101" href="#101">101</a> throws IOException {<a name="102" href="#102">102</a> <strong>for</strong> (<strong>int</strong> i = 0; i < pLen; i++) {<a name="103" href="#103">103</a> <strong>int</strong> res = read();<a name="104" href="#104">104</a> <strong>if</strong> (res == -1) {<a name="105" href="#105">105</a> <strong>return</strong> i == 0 ? -1 : i;<a name="106" href="#106">106</a> }<a name="107" href="#107">107</a> pB[pOff+i] = (byte) res;<a name="108" href="#108">108</a> }<a name="109" href="#109">109</a> <strong>return</strong> pLen;<a name="110" href="#110">110</a> }<a name="111" href="#111">111</a> };<a name="112" href="#112">112</a> <strong>try</strong> {<a name="113" href="#113">113</a> parseUpload(stream, request.length);<a name="114" href="#114">114</a> } <strong>catch</strong> (IOFileUploadException e) {<a name="115" href="#115">115</a> assertTrue(e.getCause() instanceof IOException);<a name="116" href="#116">116</a> assertEquals(<span class="string">"123"</span>, e.getCause().getMessage());<a name="117" href="#117">117</a> }<a name="118" href="#118">118</a> }<a name="119" href="#119">119</a> <a name="120" href="#120">120</a> <strong>private</strong> List parseUpload(byte[] bytes) throws FileUploadException {<a name="121" href="#121">121</a> <strong>return</strong> parseUpload(<strong>new</strong> ByteArrayInputStream(bytes), bytes.length);<a name="122" href="#122">122</a> }<a name="123" href="#123">123</a> <a name="124" href="#124">124</a> <strong>private</strong> List parseUpload(InputStream pStream, <strong>int</strong> pLength)<a name="125" href="#125">125</a> throws FileUploadException {<a name="126" href="#126">126</a> String contentType = <span class="string">"multipart/form-data; boundary=---1234"</span>;<a name="127" href="#127">127</a> <a name="128" href="#128">128</a> FileUploadBase upload = <strong>new</strong> ServletFileUpload();<a name="129" href="#129">129</a> upload.setFileItemFactory(<strong>new</strong> DiskFileItemFactory());<a name="130" href="#130">130</a> HttpServletRequest request = <strong>new</strong> <a href="../../../../org/apache/commons/fileupload/MockHttpServletRequest.html">MockHttpServletRequest</a>(pStream,<a name="131" href="#131">131</a> pLength, contentType);<a name="132" href="#132">132</a> <a name="133" href="#133">133</a> List fileItems = upload.parseRequest(<strong>new</strong> ServletRequestContext(request));<a name="134" href="#134">134</a> <strong>return</strong> fileItems;<a name="135" href="#135">135</a> }<a name="136" href="#136">136</a> <a name="137" href="#137">137</a> <strong>private</strong> byte[] newRequest() throws IOException {<a name="138" href="#138">138</a> ByteArrayOutputStream baos = <strong>new</strong> ByteArrayOutputStream();<a name="139" href="#139">139</a> <strong>int</strong> add = 16;<a name="140" href="#140">140</a> <strong>int</strong> num = 0;<a name="141" href="#141">141</a> <strong>for</strong> (<strong>int</strong> i = 0; i < 16384; i += add) {<a name="142" href="#142">142</a> <strong>if</strong> (++add == 32) {<a name="143" href="#143">143</a> add = 16;<a name="144" href="#144">144</a> }<a name="145" href="#145">145</a> String header = <span class="string">"-----1234\r\n"</span><a name="146" href="#146">146</a> + <span class="string">"Content-Disposition: form-data; name=\"field"</span> + (num++) + <span class="string">"\"\r\n"</span><a name="147" href="#147">147</a> + <span class="string">"\r\n"</span>;<a name="148" href="#148">148</a> baos.write(header.getBytes(<span class="string">"US-ASCII"</span>));<a name="149" href="#149">149</a> <strong>for</strong> (<strong>int</strong> j = 0; j < i; j++) {<a name="150" href="#150">150</a> baos.write((byte) j);<a name="151" href="#151">151</a> }<a name="152" href="#152">152</a> baos.write(<span class="string">"\r\n"</span>.getBytes(<span class="string">"US-ASCII"</span>));<a name="153" href="#153">153</a> }<a name="154" href="#154">154</a> baos.write(<span class="string">"-----1234--\r\n"</span>.getBytes(<span class="string">"US-ASCII"</span>));<a name="155" href="#155">155</a> <strong>return</strong> baos.toByteArray();<a name="156" href="#156">156</a> }<a name="157" href="#157">157</a> }</pre><hr/><div id="footer">This page was automatically generated by <a href="http://maven.apache.org/">Maven</a></div></body></html>⌨️ 快捷键说明
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