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| <a name="1" href="#1">1</a> <em class="jxr_comment">/*</em> |
| <a name="2" href="#2">2</a> <em class="jxr_comment"> * Licensed to the Apache Software Foundation (ASF) under one or more</em> |
| <a name="3" href="#3">3</a> <em class="jxr_comment"> * contributor license agreements. See the NOTICE file distributed with</em> |
| <a name="4" href="#4">4</a> <em class="jxr_comment"> * this work for additional information regarding copyright ownership.</em> |
| <a name="5" href="#5">5</a> <em class="jxr_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="jxr_comment"> * (the "License"); you may not use this file except in compliance with</em> |
| <a name="7" href="#7">7</a> <em class="jxr_comment"> * the License. You may obtain a copy of the License at</em> |
| <a name="8" href="#8">8</a> <em class="jxr_comment"> * </em> |
| <a name="9" href="#9">9</a> <em class="jxr_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="jxr_comment"> * </em> |
| <a name="11" href="#11">11</a> <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing, software</em> |
| <a name="12" href="#12">12</a> <em class="jxr_comment"> * distributed under the License is distributed on an "AS IS" BASIS,</em> |
| <a name="13" href="#13">13</a> <em class="jxr_comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em> |
| <a name="14" href="#14">14</a> <em class="jxr_comment"> * See the License for the specific language governing permissions and</em> |
| <a name="15" href="#15">15</a> <em class="jxr_comment"> * limitations under the License.</em> |
| <a name="16" href="#16">16</a> <em class="jxr_comment"> */</em> |
| <a name="17" href="#17">17</a> |
| <a name="18" href="#18">18</a> <strong class="jxr_keyword">package</strong> org.apache.log4j.xml; |
| <a name="19" href="#19">19</a> |
| <a name="20" href="#20">20</a> <strong class="jxr_keyword">import</strong> org.apache.log4j.helpers.LogLog; |
| <a name="21" href="#21">21</a> <strong class="jxr_keyword">import</strong> org.xml.sax.EntityResolver; |
| <a name="22" href="#22">22</a> <strong class="jxr_keyword">import</strong> org.xml.sax.InputSource; |
| <a name="23" href="#23">23</a> |
| <a name="24" href="#24">24</a> <strong class="jxr_keyword">import</strong> java.io.InputStream; |
| <a name="25" href="#25">25</a> <strong class="jxr_keyword">import</strong> java.io.ByteArrayInputStream; |
| <a name="26" href="#26">26</a> |
| <a name="27" href="#27">27</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="28" href="#28">28</a> <em class="jxr_javadoccomment"> * An {@link EntityResolver} specifically designed to return</em> |
| <a name="29" href="#29">29</a> <em class="jxr_javadoccomment"> * <code>log4j.dtd</code> which is embedded within the log4j jar</em> |
| <a name="30" href="#30">30</a> <em class="jxr_javadoccomment"> * file. </em> |
| <a name="31" href="#31">31</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="32" href="#32">32</a> <em class="jxr_javadoccomment"> * @author Paul Austin</em> |
| <a name="33" href="#33">33</a> <em class="jxr_javadoccomment"> * */</em> |
| <a name="34" href="#34">34</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> Log4jEntityResolver implements EntityResolver { |
| <a name="35" href="#35">35</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String PUBLIC_ID = <span class="jxr_string">"-//APACHE//DTD LOG4J 1.2//EN"</span>; |
| <a name="36" href="#36">36</a> |
| <a name="37" href="#37">37</a> <strong class="jxr_keyword">public</strong> InputSource resolveEntity (String publicId, String systemId) { |
| <a name="38" href="#38">38</a> <strong class="jxr_keyword">if</strong> (systemId.endsWith(<span class="jxr_string">"log4j.dtd"</span>) || PUBLIC_ID.equals(publicId)) { |
| <a name="39" href="#39">39</a> Class clazz = getClass(); |
| <a name="40" href="#40">40</a> InputStream in = clazz.getResourceAsStream(<span class="jxr_string">"/org/apache/log4j/xml/log4j.dtd"</span>); |
| <a name="41" href="#41">41</a> <strong class="jxr_keyword">if</strong> (in == <strong class="jxr_keyword">null</strong>) { |
| <a name="42" href="#42">42</a> LogLog.warn(<span class="jxr_string">"Could not find [log4j.dtd] using ["</span> + clazz.getClassLoader() |
| <a name="43" href="#43">43</a> + <span class="jxr_string">"] class loader, parsed without DTD."</span>); |
| <a name="44" href="#44">44</a> in = <strong class="jxr_keyword">new</strong> ByteArrayInputStream(<strong class="jxr_keyword">new</strong> byte[0]); |
| <a name="45" href="#45">45</a> } |
| <a name="46" href="#46">46</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> InputSource(in); |
| <a name="47" href="#47">47</a> } <strong class="jxr_keyword">else</strong> { |
| <a name="48" href="#48">48</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>; |
| <a name="49" href="#49">49</a> } |
| <a name="50" href="#50">50</a> } |
| <a name="51" href="#51">51</a> } |
| </pre> |
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