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<FONT color="green">001</FONT> /*<a name="line.1"></a>
<FONT color="green">002</FONT> * Licensed to the Apache Software Foundation (ASF) under one or more<a name="line.2"></a>
<FONT color="green">003</FONT> * contributor license agreements. See the NOTICE file distributed with<a name="line.3"></a>
<FONT color="green">004</FONT> * this work for additional information regarding copyright ownership.<a name="line.4"></a>
<FONT color="green">005</FONT> * The ASF licenses this file to You under the Apache license, Version 2.0<a name="line.5"></a>
<FONT color="green">006</FONT> * (the "License"); you may not use this file except in compliance with<a name="line.6"></a>
<FONT color="green">007</FONT> * the License. You may obtain a copy of the License at<a name="line.7"></a>
<FONT color="green">008</FONT> *<a name="line.8"></a>
<FONT color="green">009</FONT> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a>
<FONT color="green">010</FONT> *<a name="line.10"></a>
<FONT color="green">011</FONT> * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a>
<FONT color="green">012</FONT> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.12"></a>
<FONT color="green">013</FONT> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a>
<FONT color="green">014</FONT> * See the license for the specific language governing permissions and<a name="line.14"></a>
<FONT color="green">015</FONT> * limitations under the license.<a name="line.15"></a>
<FONT color="green">016</FONT> */<a name="line.16"></a>
<FONT color="green">017</FONT> package org.apache.logging.log4j.core.config;<a name="line.17"></a>
<FONT color="green">018</FONT> <a name="line.18"></a>
<FONT color="green">019</FONT> import org.apache.logging.log4j.Level;<a name="line.19"></a>
<FONT color="green">020</FONT> import org.apache.logging.log4j.core.config.plugins.PluginManager;<a name="line.20"></a>
<FONT color="green">021</FONT> import org.apache.logging.log4j.core.config.plugins.PluginType;<a name="line.21"></a>
<FONT color="green">022</FONT> import org.apache.logging.log4j.core.config.plugins.ResolverUtil;<a name="line.22"></a>
<FONT color="green">023</FONT> import org.apache.logging.log4j.status.StatusConsoleListener;<a name="line.23"></a>
<FONT color="green">024</FONT> import org.apache.logging.log4j.status.StatusListener;<a name="line.24"></a>
<FONT color="green">025</FONT> import org.apache.logging.log4j.status.StatusLogger;<a name="line.25"></a>
<FONT color="green">026</FONT> import org.codehaus.jackson.JsonNode;<a name="line.26"></a>
<FONT color="green">027</FONT> import org.codehaus.jackson.JsonParser;<a name="line.27"></a>
<FONT color="green">028</FONT> import org.codehaus.jackson.map.ObjectMapper;<a name="line.28"></a>
<FONT color="green">029</FONT> import org.xml.sax.InputSource;<a name="line.29"></a>
<FONT color="green">030</FONT> <a name="line.30"></a>
<FONT color="green">031</FONT> import java.io.ByteArrayInputStream;<a name="line.31"></a>
<FONT color="green">032</FONT> import java.io.ByteArrayOutputStream;<a name="line.32"></a>
<FONT color="green">033</FONT> import java.io.File;<a name="line.33"></a>
<FONT color="green">034</FONT> import java.io.IOException;<a name="line.34"></a>
<FONT color="green">035</FONT> import java.io.InputStream;<a name="line.35"></a>
<FONT color="green">036</FONT> import java.util.ArrayList;<a name="line.36"></a>
<FONT color="green">037</FONT> import java.util.Iterator;<a name="line.37"></a>
<FONT color="green">038</FONT> import java.util.List;<a name="line.38"></a>
<FONT color="green">039</FONT> import java.util.Map;<a name="line.39"></a>
<FONT color="green">040</FONT> <a name="line.40"></a>
<FONT color="green">041</FONT> /**<a name="line.41"></a>
<FONT color="green">042</FONT> * Creates a Node hierarchy from a JSON file.<a name="line.42"></a>
<FONT color="green">043</FONT> */<a name="line.43"></a>
<FONT color="green">044</FONT> public class JSONConfiguration extends BaseConfiguration {<a name="line.44"></a>
<FONT color="green">045</FONT> <a name="line.45"></a>
<FONT color="green">046</FONT> private static final String[] VERBOSE_CLASSES = new String[] {ResolverUtil.class.getName()};<a name="line.46"></a>
<FONT color="green">047</FONT> <a name="line.47"></a>
<FONT color="green">048</FONT> private static final int BUF_SIZE = 16384;<a name="line.48"></a>
<FONT color="green">049</FONT> <a name="line.49"></a>
<FONT color="green">050</FONT> private List&lt;Status&gt; status = new ArrayList&lt;Status&gt;();<a name="line.50"></a>
<FONT color="green">051</FONT> <a name="line.51"></a>
<FONT color="green">052</FONT> private JsonNode root;<a name="line.52"></a>
<FONT color="green">053</FONT> <a name="line.53"></a>
<FONT color="green">054</FONT> public JSONConfiguration(InputSource source, File configFile) {<a name="line.54"></a>
<FONT color="green">055</FONT> byte[] buffer;<a name="line.55"></a>
<FONT color="green">056</FONT> <a name="line.56"></a>
<FONT color="green">057</FONT> try {<a name="line.57"></a>
<FONT color="green">058</FONT> buffer = toByteArray(source.getByteStream());<a name="line.58"></a>
<FONT color="green">059</FONT> InputStream is = new ByteArrayInputStream(buffer);<a name="line.59"></a>
<FONT color="green">060</FONT> source = new InputSource(is);<a name="line.60"></a>
<FONT color="green">061</FONT> ObjectMapper mapper = new ObjectMapper().configure(JsonParser.Feature.ALLOW_COMMENTS, true);<a name="line.61"></a>
<FONT color="green">062</FONT> root = mapper.readTree(is);<a name="line.62"></a>
<FONT color="green">063</FONT> if (root.size() == 1) {<a name="line.63"></a>
<FONT color="green">064</FONT> Iterator&lt;JsonNode&gt; i = root.getElements();<a name="line.64"></a>
<FONT color="green">065</FONT> root = i.next();<a name="line.65"></a>
<FONT color="green">066</FONT> }<a name="line.66"></a>
<FONT color="green">067</FONT> processAttributes(rootNode, root);<a name="line.67"></a>
<FONT color="green">068</FONT> Level status = Level.OFF;<a name="line.68"></a>
<FONT color="green">069</FONT> boolean verbose = false;<a name="line.69"></a>
<FONT color="green">070</FONT> for (Map.Entry&lt;String, String&gt; entry : rootNode.getAttributes().entrySet()) {<a name="line.70"></a>
<FONT color="green">071</FONT> if ("status".equalsIgnoreCase(entry.getKey())) {<a name="line.71"></a>
<FONT color="green">072</FONT> status = Level.toLevel(entry.getValue().toUpperCase(), Level.OFF);<a name="line.72"></a>
<FONT color="green">073</FONT> } else if ("verbose".equalsIgnoreCase(entry.getKey())) {<a name="line.73"></a>
<FONT color="green">074</FONT> verbose = Boolean.parseBoolean(entry.getValue());<a name="line.74"></a>
<FONT color="green">075</FONT> } else if ("packages".equalsIgnoreCase(entry.getKey())) {<a name="line.75"></a>
<FONT color="green">076</FONT> String[] packages = entry.getValue().split(",");<a name="line.76"></a>
<FONT color="green">077</FONT> for (String p : packages) {<a name="line.77"></a>
<FONT color="green">078</FONT> PluginManager.addPackage(p);<a name="line.78"></a>
<FONT color="green">079</FONT> }<a name="line.79"></a>
<FONT color="green">080</FONT> } else if ("name".equalsIgnoreCase(entry.getKey())) {<a name="line.80"></a>
<FONT color="green">081</FONT> setName(entry.getValue());<a name="line.81"></a>
<FONT color="green">082</FONT> } else if ("monitorInterval".equalsIgnoreCase(entry.getKey())) {<a name="line.82"></a>
<FONT color="green">083</FONT> int interval = Integer.parseInt(entry.getValue());<a name="line.83"></a>
<FONT color="green">084</FONT> if (interval &gt; 0 &amp;&amp; configFile != null) {<a name="line.84"></a>
<FONT color="green">085</FONT> monitor = new FileConfigurationMonitor(configFile, listeners, interval);<a name="line.85"></a>
<FONT color="green">086</FONT> }<a name="line.86"></a>
<FONT color="green">087</FONT> }<a name="line.87"></a>
<FONT color="green">088</FONT> }<a name="line.88"></a>
<FONT color="green">089</FONT> <a name="line.89"></a>
<FONT color="green">090</FONT> Iterator&lt;StatusListener&gt; statusIter = ((StatusLogger) LOGGER).getListeners();<a name="line.90"></a>
<FONT color="green">091</FONT> boolean found = false;<a name="line.91"></a>
<FONT color="green">092</FONT> while (statusIter.hasNext()) {<a name="line.92"></a>
<FONT color="green">093</FONT> StatusListener listener = statusIter.next();<a name="line.93"></a>
<FONT color="green">094</FONT> if (listener instanceof StatusConsoleListener) {<a name="line.94"></a>
<FONT color="green">095</FONT> found = true;<a name="line.95"></a>
<FONT color="green">096</FONT> ((StatusConsoleListener) listener).setLevel(status);<a name="line.96"></a>
<FONT color="green">097</FONT> if (!verbose) {<a name="line.97"></a>
<FONT color="green">098</FONT> ((StatusConsoleListener) listener).setFilters(VERBOSE_CLASSES);<a name="line.98"></a>
<FONT color="green">099</FONT> }<a name="line.99"></a>
<FONT color="green">100</FONT> }<a name="line.100"></a>
<FONT color="green">101</FONT> }<a name="line.101"></a>
<FONT color="green">102</FONT> if (!found &amp;&amp; status != Level.OFF) {<a name="line.102"></a>
<FONT color="green">103</FONT> StatusConsoleListener listener = new StatusConsoleListener(status);<a name="line.103"></a>
<FONT color="green">104</FONT> if (!verbose) {<a name="line.104"></a>
<FONT color="green">105</FONT> listener.setFilters(VERBOSE_CLASSES);<a name="line.105"></a>
<FONT color="green">106</FONT> }<a name="line.106"></a>
<FONT color="green">107</FONT> ((StatusLogger) LOGGER).registerListener(listener);<a name="line.107"></a>
<FONT color="green">108</FONT> }<a name="line.108"></a>
<FONT color="green">109</FONT> if (getName() == null) {<a name="line.109"></a>
<FONT color="green">110</FONT> setName(source.getSystemId());<a name="line.110"></a>
<FONT color="green">111</FONT> }<a name="line.111"></a>
<FONT color="green">112</FONT> } catch (Exception ex) {<a name="line.112"></a>
<FONT color="green">113</FONT> LOGGER.error("Error parsing " + source.getSystemId(), ex);<a name="line.113"></a>
<FONT color="green">114</FONT> ex.printStackTrace();<a name="line.114"></a>
<FONT color="green">115</FONT> }<a name="line.115"></a>
<FONT color="green">116</FONT> }<a name="line.116"></a>
<FONT color="green">117</FONT> <a name="line.117"></a>
<FONT color="green">118</FONT> public void setup() {<a name="line.118"></a>
<FONT color="green">119</FONT> Iterator&lt;Map.Entry&lt;String, JsonNode&gt;&gt; iter = root.getFields();<a name="line.119"></a>
<FONT color="green">120</FONT> List&lt;Node&gt; children = rootNode.getChildren();<a name="line.120"></a>
<FONT color="green">121</FONT> while (iter.hasNext()) {<a name="line.121"></a>
<FONT color="green">122</FONT> Map.Entry&lt;String, JsonNode&gt; entry = iter.next();<a name="line.122"></a>
<FONT color="green">123</FONT> JsonNode n = entry.getValue();<a name="line.123"></a>
<FONT color="green">124</FONT> if (n.isObject()) {<a name="line.124"></a>
<FONT color="green">125</FONT> LOGGER.debug("Processing node for object " + entry.getKey());<a name="line.125"></a>
<FONT color="green">126</FONT> children.add(constructNode(entry.getKey(), rootNode, n));<a name="line.126"></a>
<FONT color="green">127</FONT> } else if (n.isArray()) {<a name="line.127"></a>
<FONT color="green">128</FONT> LOGGER.error("Arrays are not supported at the root configuration.");<a name="line.128"></a>
<FONT color="green">129</FONT> }<a name="line.129"></a>
<FONT color="green">130</FONT> }<a name="line.130"></a>
<FONT color="green">131</FONT> LOGGER.debug("Completed parsing configuration");<a name="line.131"></a>
<FONT color="green">132</FONT> if (status.size() &gt; 0) {<a name="line.132"></a>
<FONT color="green">133</FONT> for (Status s : status) {<a name="line.133"></a>
<FONT color="green">134</FONT> LOGGER.error("Error processing element " + s.name + ": " + s.errorType);<a name="line.134"></a>
<FONT color="green">135</FONT> }<a name="line.135"></a>
<FONT color="green">136</FONT> return;<a name="line.136"></a>
<FONT color="green">137</FONT> }<a name="line.137"></a>
<FONT color="green">138</FONT> }<a name="line.138"></a>
<FONT color="green">139</FONT> <a name="line.139"></a>
<FONT color="green">140</FONT> private Node constructNode(String name, Node parent, JsonNode jsonNode) {<a name="line.140"></a>
<FONT color="green">141</FONT> PluginType type = getPluginManager().getPluginType(name);<a name="line.141"></a>
<FONT color="green">142</FONT> Node node = new Node(parent, name, type);<a name="line.142"></a>
<FONT color="green">143</FONT> processAttributes(node, jsonNode);<a name="line.143"></a>
<FONT color="green">144</FONT> Iterator&lt;Map.Entry&lt;String, JsonNode&gt;&gt; iter = jsonNode.getFields();<a name="line.144"></a>
<FONT color="green">145</FONT> List&lt;Node&gt; children = node.getChildren();<a name="line.145"></a>
<FONT color="green">146</FONT> while (iter.hasNext()) {<a name="line.146"></a>
<FONT color="green">147</FONT> Map.Entry&lt;String, JsonNode&gt; entry = iter.next();<a name="line.147"></a>
<FONT color="green">148</FONT> JsonNode n = entry.getValue();<a name="line.148"></a>
<FONT color="green">149</FONT> if (n.isArray() || n.isObject()) {<a name="line.149"></a>
<FONT color="green">150</FONT> if (type == null) {<a name="line.150"></a>
<FONT color="green">151</FONT> status.add(new Status(name, n, ErrorType.CLASS_NOT_FOUND));<a name="line.151"></a>
<FONT color="green">152</FONT> }<a name="line.152"></a>
<FONT color="green">153</FONT> if (n.isArray()) {<a name="line.153"></a>
<FONT color="green">154</FONT> LOGGER.debug("Processing node for array " + entry.getKey());<a name="line.154"></a>
<FONT color="green">155</FONT> for (int i = 0; i &lt; n.size(); ++i) {<a name="line.155"></a>
<FONT color="green">156</FONT> String pluginType = getType(n.get(i), entry.getKey());<a name="line.156"></a>
<FONT color="green">157</FONT> PluginType entryType = getPluginManager().getPluginType(pluginType);<a name="line.157"></a>
<FONT color="green">158</FONT> Node item = new Node(node, entry.getKey(), entryType);<a name="line.158"></a>
<FONT color="green">159</FONT> processAttributes(item, n.get(i));<a name="line.159"></a>
<FONT color="green">160</FONT> if (pluginType.equals(entry.getKey())) {<a name="line.160"></a>
<FONT color="green">161</FONT> LOGGER.debug("Processing " + entry.getKey() + "[" + i + "]");<a name="line.161"></a>
<FONT color="green">162</FONT> } else {<a name="line.162"></a>
<FONT color="green">163</FONT> LOGGER.debug("Processing " + pluginType + " " + entry.getKey() + "[" + i + "]");<a name="line.163"></a>
<FONT color="green">164</FONT> }<a name="line.164"></a>
<FONT color="green">165</FONT> Iterator&lt;Map.Entry&lt;String, JsonNode&gt;&gt; itemIter = n.get(i).getFields();<a name="line.165"></a>
<FONT color="green">166</FONT> List&lt;Node&gt; itemChildren = item.getChildren();<a name="line.166"></a>
<FONT color="green">167</FONT> while (itemIter.hasNext()) {<a name="line.167"></a>
<FONT color="green">168</FONT> Map.Entry&lt;String, JsonNode&gt; itemEntry = itemIter.next();<a name="line.168"></a>
<FONT color="green">169</FONT> if (itemEntry.getValue().isObject()) {<a name="line.169"></a>
<FONT color="green">170</FONT> LOGGER.debug("Processing node for object " + itemEntry.getKey());<a name="line.170"></a>
<FONT color="green">171</FONT> itemChildren.add(constructNode(itemEntry.getKey(), item, itemEntry.getValue()));<a name="line.171"></a>
<FONT color="green">172</FONT> }<a name="line.172"></a>
<FONT color="green">173</FONT> }<a name="line.173"></a>
<FONT color="green">174</FONT> children.add(item);<a name="line.174"></a>
<FONT color="green">175</FONT> }<a name="line.175"></a>
<FONT color="green">176</FONT> } else {<a name="line.176"></a>
<FONT color="green">177</FONT> LOGGER.debug("Processing node for object " + entry.getKey());<a name="line.177"></a>
<FONT color="green">178</FONT> children.add(constructNode(entry.getKey(), node, n));<a name="line.178"></a>
<FONT color="green">179</FONT> }<a name="line.179"></a>
<FONT color="green">180</FONT> }<a name="line.180"></a>
<FONT color="green">181</FONT> }<a name="line.181"></a>
<FONT color="green">182</FONT> <a name="line.182"></a>
<FONT color="green">183</FONT> String t;<a name="line.183"></a>
<FONT color="green">184</FONT> if (type == null) {<a name="line.184"></a>
<FONT color="green">185</FONT> t = "null";<a name="line.185"></a>
<FONT color="green">186</FONT> } else {<a name="line.186"></a>
<FONT color="green">187</FONT> t = type.getElementName() + ":" + type.getPluginClass();<a name="line.187"></a>
<FONT color="green">188</FONT> }<a name="line.188"></a>
<FONT color="green">189</FONT> <a name="line.189"></a>
<FONT color="green">190</FONT> String p = node.getParent() == null ? "null" : node.getParent().getName() == null ?<a name="line.190"></a>
<FONT color="green">191</FONT> "root" : node.getParent().getName();<a name="line.191"></a>
<FONT color="green">192</FONT> LOGGER.debug("Returning " + node.getName() + " with parent " + p + " of type " + t);<a name="line.192"></a>
<FONT color="green">193</FONT> return node;<a name="line.193"></a>
<FONT color="green">194</FONT> }<a name="line.194"></a>
<FONT color="green">195</FONT> <a name="line.195"></a>
<FONT color="green">196</FONT> private String getType(JsonNode node, String name) {<a name="line.196"></a>
<FONT color="green">197</FONT> Iterator&lt;Map.Entry&lt;String, JsonNode&gt;&gt; iter = node.getFields();<a name="line.197"></a>
<FONT color="green">198</FONT> while (iter.hasNext()) {<a name="line.198"></a>
<FONT color="green">199</FONT> Map.Entry&lt;String, JsonNode&gt; entry = iter.next();<a name="line.199"></a>
<FONT color="green">200</FONT> if (entry.getKey().equalsIgnoreCase("type")) {<a name="line.200"></a>
<FONT color="green">201</FONT> JsonNode n = entry.getValue();<a name="line.201"></a>
<FONT color="green">202</FONT> if (n.isValueNode()) {<a name="line.202"></a>
<FONT color="green">203</FONT> return n.asText();<a name="line.203"></a>
<FONT color="green">204</FONT> }<a name="line.204"></a>
<FONT color="green">205</FONT> }<a name="line.205"></a>
<FONT color="green">206</FONT> }<a name="line.206"></a>
<FONT color="green">207</FONT> return name;<a name="line.207"></a>
<FONT color="green">208</FONT> }<a name="line.208"></a>
<FONT color="green">209</FONT> <a name="line.209"></a>
<FONT color="green">210</FONT> private void processAttributes(Node parent, JsonNode node) {<a name="line.210"></a>
<FONT color="green">211</FONT> Map&lt;String, String&gt; attrs = parent.getAttributes();<a name="line.211"></a>
<FONT color="green">212</FONT> Iterator&lt;Map.Entry&lt;String, JsonNode&gt;&gt; iter = node.getFields();<a name="line.212"></a>
<FONT color="green">213</FONT> while (iter.hasNext()) {<a name="line.213"></a>
<FONT color="green">214</FONT> Map.Entry&lt;String, JsonNode&gt; entry = iter.next();<a name="line.214"></a>
<FONT color="green">215</FONT> if (!entry.getKey().equalsIgnoreCase("type")) {<a name="line.215"></a>
<FONT color="green">216</FONT> JsonNode n = entry.getValue();<a name="line.216"></a>
<FONT color="green">217</FONT> if (n.isValueNode()) {<a name="line.217"></a>
<FONT color="green">218</FONT> attrs.put(entry.getKey(), n.asText());<a name="line.218"></a>
<FONT color="green">219</FONT> }<a name="line.219"></a>
<FONT color="green">220</FONT> }<a name="line.220"></a>
<FONT color="green">221</FONT> }<a name="line.221"></a>
<FONT color="green">222</FONT> }<a name="line.222"></a>
<FONT color="green">223</FONT> <a name="line.223"></a>
<FONT color="green">224</FONT> protected byte[] toByteArray(InputStream is) throws IOException {<a name="line.224"></a>
<FONT color="green">225</FONT> ByteArrayOutputStream buffer = new ByteArrayOutputStream();<a name="line.225"></a>
<FONT color="green">226</FONT> <a name="line.226"></a>
<FONT color="green">227</FONT> int nRead;<a name="line.227"></a>
<FONT color="green">228</FONT> byte[] data = new byte[BUF_SIZE];<a name="line.228"></a>
<FONT color="green">229</FONT> <a name="line.229"></a>
<FONT color="green">230</FONT> while ((nRead = is.read(data, 0, data.length)) != -1) {<a name="line.230"></a>
<FONT color="green">231</FONT> buffer.write(data, 0, nRead);<a name="line.231"></a>
<FONT color="green">232</FONT> }<a name="line.232"></a>
<FONT color="green">233</FONT> <a name="line.233"></a>
<FONT color="green">234</FONT> return buffer.toByteArray();<a name="line.234"></a>
<FONT color="green">235</FONT> }<a name="line.235"></a>
<FONT color="green">236</FONT> <a name="line.236"></a>
<FONT color="green">237</FONT> /**<a name="line.237"></a>
<FONT color="green">238</FONT> * The error that occurred.<a name="line.238"></a>
<FONT color="green">239</FONT> */<a name="line.239"></a>
<FONT color="green">240</FONT> private enum ErrorType {<a name="line.240"></a>
<FONT color="green">241</FONT> CLASS_NOT_FOUND<a name="line.241"></a>
<FONT color="green">242</FONT> }<a name="line.242"></a>
<FONT color="green">243</FONT> <a name="line.243"></a>
<FONT color="green">244</FONT> /**<a name="line.244"></a>
<FONT color="green">245</FONT> * Status for recording errors.<a name="line.245"></a>
<FONT color="green">246</FONT> */<a name="line.246"></a>
<FONT color="green">247</FONT> private class Status {<a name="line.247"></a>
<FONT color="green">248</FONT> private JsonNode node;<a name="line.248"></a>
<FONT color="green">249</FONT> private String name;<a name="line.249"></a>
<FONT color="green">250</FONT> private ErrorType errorType;<a name="line.250"></a>
<FONT color="green">251</FONT> <a name="line.251"></a>
<FONT color="green">252</FONT> public Status(String name, JsonNode node, ErrorType errorType) {<a name="line.252"></a>
<FONT color="green">253</FONT> this.name = name;<a name="line.253"></a>
<FONT color="green">254</FONT> this.node = node;<a name="line.254"></a>
<FONT color="green">255</FONT> this.errorType = errorType;<a name="line.255"></a>
<FONT color="green">256</FONT> }<a name="line.256"></a>
<FONT color="green">257</FONT> }<a name="line.257"></a>
<FONT color="green">258</FONT> }<a name="line.258"></a>
</PRE>
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