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<pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a>
<span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a>
<span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a>
<span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a>
<span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a>
<span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a>
<span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a>
<span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a>
<span class="sourceLineNo">009</span> *<a name="line.9"></a>
<span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a>
<span class="sourceLineNo">011</span> *<a name="line.11"></a>
<span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing,<a name="line.12"></a>
<span class="sourceLineNo">013</span> * software distributed under the License is distributed on an<a name="line.13"></a>
<span class="sourceLineNo">014</span> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY<a name="line.14"></a>
<span class="sourceLineNo">015</span> * KIND, either express or implied. See the License for the<a name="line.15"></a>
<span class="sourceLineNo">016</span> * specific language governing permissions and limitations<a name="line.16"></a>
<span class="sourceLineNo">017</span> * under the License.<a name="line.17"></a>
<span class="sourceLineNo">018</span> *<a name="line.18"></a>
<span class="sourceLineNo">019</span> */<a name="line.19"></a>
<span class="sourceLineNo">020</span>package org.apache.mina.util.byteaccess;<a name="line.20"></a>
<span class="sourceLineNo">021</span><a name="line.21"></a>
<span class="sourceLineNo">022</span>import java.nio.ByteOrder;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import java.util.Collections;<a name="line.23"></a>
<span class="sourceLineNo">024</span><a name="line.24"></a>
<span class="sourceLineNo">025</span>import org.apache.mina.core.buffer.IoBuffer;<a name="line.25"></a>
<span class="sourceLineNo">026</span><a name="line.26"></a>
<span class="sourceLineNo">027</span>/**<a name="line.27"></a>
<span class="sourceLineNo">028</span> * A &lt;code&gt;ByteArray&lt;/code&gt; backed by a &lt;code&gt;IoBuffer&lt;/code&gt;. This class<a name="line.28"></a>
<span class="sourceLineNo">029</span> * is abstract. Subclasses need to override the &lt;code&gt;free()&lt;/code&gt; method. An<a name="line.29"></a>
<span class="sourceLineNo">030</span> * implementation backed by a heap &lt;code&gt;IoBuffer&lt;/code&gt; can be created with<a name="line.30"></a>
<span class="sourceLineNo">031</span> * a &lt;code&gt;SimpleByteArrayFactory&lt;/code&gt;.<a name="line.31"></a>
<span class="sourceLineNo">032</span> *<a name="line.32"></a>
<span class="sourceLineNo">033</span> * @author &lt;a href="http://mina.apache.org"&gt;Apache MINA Project&lt;/a&gt;<a name="line.33"></a>
<span class="sourceLineNo">034</span> */<a name="line.34"></a>
<span class="sourceLineNo">035</span>public abstract class BufferByteArray extends AbstractByteArray {<a name="line.35"></a>
<span class="sourceLineNo">036</span><a name="line.36"></a>
<span class="sourceLineNo">037</span> /**<a name="line.37"></a>
<span class="sourceLineNo">038</span> * The backing &lt;code&gt;IoBuffer&lt;/code&gt;.<a name="line.38"></a>
<span class="sourceLineNo">039</span> */<a name="line.39"></a>
<span class="sourceLineNo">040</span> protected IoBuffer bb;<a name="line.40"></a>
<span class="sourceLineNo">041</span><a name="line.41"></a>
<span class="sourceLineNo">042</span> /**<a name="line.42"></a>
<span class="sourceLineNo">043</span> * <a name="line.43"></a>
<span class="sourceLineNo">044</span> * Creates a new instance of BufferByteArray and uses the supplied<a name="line.44"></a>
<span class="sourceLineNo">045</span> * {@link IoBuffer} to back this class<a name="line.45"></a>
<span class="sourceLineNo">046</span> *<a name="line.46"></a>
<span class="sourceLineNo">047</span> * @param bb<a name="line.47"></a>
<span class="sourceLineNo">048</span> * The backing buffer<a name="line.48"></a>
<span class="sourceLineNo">049</span> */<a name="line.49"></a>
<span class="sourceLineNo">050</span> public BufferByteArray(IoBuffer bb) {<a name="line.50"></a>
<span class="sourceLineNo">051</span> this.bb = bb;<a name="line.51"></a>
<span class="sourceLineNo">052</span> }<a name="line.52"></a>
<span class="sourceLineNo">053</span><a name="line.53"></a>
<span class="sourceLineNo">054</span> /**<a name="line.54"></a>
<span class="sourceLineNo">055</span> * {@inheritDoc}<a name="line.55"></a>
<span class="sourceLineNo">056</span> */<a name="line.56"></a>
<span class="sourceLineNo">057</span> public Iterable&lt;IoBuffer&gt; getIoBuffers() {<a name="line.57"></a>
<span class="sourceLineNo">058</span> return Collections.singletonList(bb);<a name="line.58"></a>
<span class="sourceLineNo">059</span> }<a name="line.59"></a>
<span class="sourceLineNo">060</span><a name="line.60"></a>
<span class="sourceLineNo">061</span> /**<a name="line.61"></a>
<span class="sourceLineNo">062</span> * {@inheritDoc}<a name="line.62"></a>
<span class="sourceLineNo">063</span> */<a name="line.63"></a>
<span class="sourceLineNo">064</span> public IoBuffer getSingleIoBuffer() {<a name="line.64"></a>
<span class="sourceLineNo">065</span> return bb;<a name="line.65"></a>
<span class="sourceLineNo">066</span> }<a name="line.66"></a>
<span class="sourceLineNo">067</span><a name="line.67"></a>
<span class="sourceLineNo">068</span> /**<a name="line.68"></a>
<span class="sourceLineNo">069</span> * {@inheritDoc}<a name="line.69"></a>
<span class="sourceLineNo">070</span> * <a name="line.70"></a>
<span class="sourceLineNo">071</span> * Calling &lt;code&gt;free()&lt;/code&gt; on the returned slice has no effect.<a name="line.71"></a>
<span class="sourceLineNo">072</span> */<a name="line.72"></a>
<span class="sourceLineNo">073</span> public ByteArray slice(int index, int length) {<a name="line.73"></a>
<span class="sourceLineNo">074</span> int oldLimit = bb.limit();<a name="line.74"></a>
<span class="sourceLineNo">075</span> bb.position(index);<a name="line.75"></a>
<span class="sourceLineNo">076</span> bb.limit(index + length);<a name="line.76"></a>
<span class="sourceLineNo">077</span> IoBuffer slice = bb.slice();<a name="line.77"></a>
<span class="sourceLineNo">078</span> bb.limit(oldLimit);<a name="line.78"></a>
<span class="sourceLineNo">079</span> return new BufferByteArray(slice) {<a name="line.79"></a>
<span class="sourceLineNo">080</span><a name="line.80"></a>
<span class="sourceLineNo">081</span> @Override<a name="line.81"></a>
<span class="sourceLineNo">082</span> public void free() {<a name="line.82"></a>
<span class="sourceLineNo">083</span> // Do nothing.<a name="line.83"></a>
<span class="sourceLineNo">084</span> }<a name="line.84"></a>
<span class="sourceLineNo">085</span> };<a name="line.85"></a>
<span class="sourceLineNo">086</span> }<a name="line.86"></a>
<span class="sourceLineNo">087</span><a name="line.87"></a>
<span class="sourceLineNo">088</span> /**<a name="line.88"></a>
<span class="sourceLineNo">089</span> * {@inheritDoc}<a name="line.89"></a>
<span class="sourceLineNo">090</span> */<a name="line.90"></a>
<span class="sourceLineNo">091</span> public abstract void free();<a name="line.91"></a>
<span class="sourceLineNo">092</span><a name="line.92"></a>
<span class="sourceLineNo">093</span> /**<a name="line.93"></a>
<span class="sourceLineNo">094</span> * {@inheritDoc}<a name="line.94"></a>
<span class="sourceLineNo">095</span> */<a name="line.95"></a>
<span class="sourceLineNo">096</span> public Cursor cursor() {<a name="line.96"></a>
<span class="sourceLineNo">097</span> return new CursorImpl();<a name="line.97"></a>
<span class="sourceLineNo">098</span> }<a name="line.98"></a>
<span class="sourceLineNo">099</span><a name="line.99"></a>
<span class="sourceLineNo">100</span> /**<a name="line.100"></a>
<span class="sourceLineNo">101</span> * {@inheritDoc}<a name="line.101"></a>
<span class="sourceLineNo">102</span> */<a name="line.102"></a>
<span class="sourceLineNo">103</span> public Cursor cursor(int index) {<a name="line.103"></a>
<span class="sourceLineNo">104</span> return new CursorImpl(index);<a name="line.104"></a>
<span class="sourceLineNo">105</span> }<a name="line.105"></a>
<span class="sourceLineNo">106</span><a name="line.106"></a>
<span class="sourceLineNo">107</span> /**<a name="line.107"></a>
<span class="sourceLineNo">108</span> * {@inheritDoc}<a name="line.108"></a>
<span class="sourceLineNo">109</span> */<a name="line.109"></a>
<span class="sourceLineNo">110</span> public int first() {<a name="line.110"></a>
<span class="sourceLineNo">111</span> return 0;<a name="line.111"></a>
<span class="sourceLineNo">112</span> }<a name="line.112"></a>
<span class="sourceLineNo">113</span><a name="line.113"></a>
<span class="sourceLineNo">114</span> /**<a name="line.114"></a>
<span class="sourceLineNo">115</span> * {@inheritDoc}<a name="line.115"></a>
<span class="sourceLineNo">116</span> */<a name="line.116"></a>
<span class="sourceLineNo">117</span> public int last() {<a name="line.117"></a>
<span class="sourceLineNo">118</span> return bb.limit();<a name="line.118"></a>
<span class="sourceLineNo">119</span> }<a name="line.119"></a>
<span class="sourceLineNo">120</span><a name="line.120"></a>
<span class="sourceLineNo">121</span> /**<a name="line.121"></a>
<span class="sourceLineNo">122</span> * {@inheritDoc}<a name="line.122"></a>
<span class="sourceLineNo">123</span> */<a name="line.123"></a>
<span class="sourceLineNo">124</span> public ByteOrder order() {<a name="line.124"></a>
<span class="sourceLineNo">125</span> return bb.order();<a name="line.125"></a>
<span class="sourceLineNo">126</span> }<a name="line.126"></a>
<span class="sourceLineNo">127</span><a name="line.127"></a>
<span class="sourceLineNo">128</span> /**<a name="line.128"></a>
<span class="sourceLineNo">129</span> * {@inheritDoc}<a name="line.129"></a>
<span class="sourceLineNo">130</span> */<a name="line.130"></a>
<span class="sourceLineNo">131</span> public void order(ByteOrder order) {<a name="line.131"></a>
<span class="sourceLineNo">132</span> bb.order(order);<a name="line.132"></a>
<span class="sourceLineNo">133</span> }<a name="line.133"></a>
<span class="sourceLineNo">134</span><a name="line.134"></a>
<span class="sourceLineNo">135</span> /**<a name="line.135"></a>
<span class="sourceLineNo">136</span> * {@inheritDoc}<a name="line.136"></a>
<span class="sourceLineNo">137</span> */<a name="line.137"></a>
<span class="sourceLineNo">138</span> public byte get(int index) {<a name="line.138"></a>
<span class="sourceLineNo">139</span> return bb.get(index);<a name="line.139"></a>
<span class="sourceLineNo">140</span> }<a name="line.140"></a>
<span class="sourceLineNo">141</span><a name="line.141"></a>
<span class="sourceLineNo">142</span> /**<a name="line.142"></a>
<span class="sourceLineNo">143</span> * {@inheritDoc}<a name="line.143"></a>
<span class="sourceLineNo">144</span> */<a name="line.144"></a>
<span class="sourceLineNo">145</span> public void put(int index, byte b) {<a name="line.145"></a>
<span class="sourceLineNo">146</span> bb.put(index, b);<a name="line.146"></a>
<span class="sourceLineNo">147</span> }<a name="line.147"></a>
<span class="sourceLineNo">148</span><a name="line.148"></a>
<span class="sourceLineNo">149</span> /**<a name="line.149"></a>
<span class="sourceLineNo">150</span> * {@inheritDoc}<a name="line.150"></a>
<span class="sourceLineNo">151</span> */<a name="line.151"></a>
<span class="sourceLineNo">152</span> public void get(int index, IoBuffer other) {<a name="line.152"></a>
<span class="sourceLineNo">153</span> bb.position(index);<a name="line.153"></a>
<span class="sourceLineNo">154</span> other.put(bb);<a name="line.154"></a>
<span class="sourceLineNo">155</span> }<a name="line.155"></a>
<span class="sourceLineNo">156</span><a name="line.156"></a>
<span class="sourceLineNo">157</span> /**<a name="line.157"></a>
<span class="sourceLineNo">158</span> * {@inheritDoc}<a name="line.158"></a>
<span class="sourceLineNo">159</span> */<a name="line.159"></a>
<span class="sourceLineNo">160</span> public void put(int index, IoBuffer other) {<a name="line.160"></a>
<span class="sourceLineNo">161</span> bb.position(index);<a name="line.161"></a>
<span class="sourceLineNo">162</span> bb.put(other);<a name="line.162"></a>
<span class="sourceLineNo">163</span> }<a name="line.163"></a>
<span class="sourceLineNo">164</span><a name="line.164"></a>
<span class="sourceLineNo">165</span> /**<a name="line.165"></a>
<span class="sourceLineNo">166</span> * {@inheritDoc}<a name="line.166"></a>
<span class="sourceLineNo">167</span> */<a name="line.167"></a>
<span class="sourceLineNo">168</span> public short getShort(int index) {<a name="line.168"></a>
<span class="sourceLineNo">169</span> return bb.getShort(index);<a name="line.169"></a>
<span class="sourceLineNo">170</span> }<a name="line.170"></a>
<span class="sourceLineNo">171</span><a name="line.171"></a>
<span class="sourceLineNo">172</span> /**<a name="line.172"></a>
<span class="sourceLineNo">173</span> * {@inheritDoc}<a name="line.173"></a>
<span class="sourceLineNo">174</span> */<a name="line.174"></a>
<span class="sourceLineNo">175</span> public void putShort(int index, short s) {<a name="line.175"></a>
<span class="sourceLineNo">176</span> bb.putShort(index, s);<a name="line.176"></a>
<span class="sourceLineNo">177</span> }<a name="line.177"></a>
<span class="sourceLineNo">178</span><a name="line.178"></a>
<span class="sourceLineNo">179</span> /**<a name="line.179"></a>
<span class="sourceLineNo">180</span> * {@inheritDoc}<a name="line.180"></a>
<span class="sourceLineNo">181</span> */<a name="line.181"></a>
<span class="sourceLineNo">182</span> public int getInt(int index) {<a name="line.182"></a>
<span class="sourceLineNo">183</span> return bb.getInt(index);<a name="line.183"></a>
<span class="sourceLineNo">184</span> }<a name="line.184"></a>
<span class="sourceLineNo">185</span><a name="line.185"></a>
<span class="sourceLineNo">186</span> /**<a name="line.186"></a>
<span class="sourceLineNo">187</span> * {@inheritDoc}<a name="line.187"></a>
<span class="sourceLineNo">188</span> */<a name="line.188"></a>
<span class="sourceLineNo">189</span> public void putInt(int index, int i) {<a name="line.189"></a>
<span class="sourceLineNo">190</span> bb.putInt(index, i);<a name="line.190"></a>
<span class="sourceLineNo">191</span> }<a name="line.191"></a>
<span class="sourceLineNo">192</span><a name="line.192"></a>
<span class="sourceLineNo">193</span> /**<a name="line.193"></a>
<span class="sourceLineNo">194</span> * {@inheritDoc}<a name="line.194"></a>
<span class="sourceLineNo">195</span> */<a name="line.195"></a>
<span class="sourceLineNo">196</span> public long getLong(int index) {<a name="line.196"></a>
<span class="sourceLineNo">197</span> return bb.getLong(index);<a name="line.197"></a>
<span class="sourceLineNo">198</span> }<a name="line.198"></a>
<span class="sourceLineNo">199</span><a name="line.199"></a>
<span class="sourceLineNo">200</span> /**<a name="line.200"></a>
<span class="sourceLineNo">201</span> * {@inheritDoc}<a name="line.201"></a>
<span class="sourceLineNo">202</span> */<a name="line.202"></a>
<span class="sourceLineNo">203</span> public void putLong(int index, long l) {<a name="line.203"></a>
<span class="sourceLineNo">204</span> bb.putLong(index, l);<a name="line.204"></a>
<span class="sourceLineNo">205</span> }<a name="line.205"></a>
<span class="sourceLineNo">206</span><a name="line.206"></a>
<span class="sourceLineNo">207</span> /**<a name="line.207"></a>
<span class="sourceLineNo">208</span> * {@inheritDoc}<a name="line.208"></a>
<span class="sourceLineNo">209</span> */<a name="line.209"></a>
<span class="sourceLineNo">210</span> public float getFloat(int index) {<a name="line.210"></a>
<span class="sourceLineNo">211</span> return bb.getFloat(index);<a name="line.211"></a>
<span class="sourceLineNo">212</span> }<a name="line.212"></a>
<span class="sourceLineNo">213</span><a name="line.213"></a>
<span class="sourceLineNo">214</span> /**<a name="line.214"></a>
<span class="sourceLineNo">215</span> * {@inheritDoc}<a name="line.215"></a>
<span class="sourceLineNo">216</span> */<a name="line.216"></a>
<span class="sourceLineNo">217</span> public void putFloat(int index, float f) {<a name="line.217"></a>
<span class="sourceLineNo">218</span> bb.putFloat(index, f);<a name="line.218"></a>
<span class="sourceLineNo">219</span> }<a name="line.219"></a>
<span class="sourceLineNo">220</span><a name="line.220"></a>
<span class="sourceLineNo">221</span> /**<a name="line.221"></a>
<span class="sourceLineNo">222</span> * {@inheritDoc}<a name="line.222"></a>
<span class="sourceLineNo">223</span> */<a name="line.223"></a>
<span class="sourceLineNo">224</span> public double getDouble(int index) {<a name="line.224"></a>
<span class="sourceLineNo">225</span> return bb.getDouble(index);<a name="line.225"></a>
<span class="sourceLineNo">226</span> }<a name="line.226"></a>
<span class="sourceLineNo">227</span><a name="line.227"></a>
<span class="sourceLineNo">228</span> /**<a name="line.228"></a>
<span class="sourceLineNo">229</span> * {@inheritDoc}<a name="line.229"></a>
<span class="sourceLineNo">230</span> */<a name="line.230"></a>
<span class="sourceLineNo">231</span> public void putDouble(int index, double d) {<a name="line.231"></a>
<span class="sourceLineNo">232</span> bb.putDouble(index, d);<a name="line.232"></a>
<span class="sourceLineNo">233</span> }<a name="line.233"></a>
<span class="sourceLineNo">234</span><a name="line.234"></a>
<span class="sourceLineNo">235</span> /**<a name="line.235"></a>
<span class="sourceLineNo">236</span> * {@inheritDoc}<a name="line.236"></a>
<span class="sourceLineNo">237</span> */<a name="line.237"></a>
<span class="sourceLineNo">238</span> public char getChar(int index) {<a name="line.238"></a>
<span class="sourceLineNo">239</span> return bb.getChar(index);<a name="line.239"></a>
<span class="sourceLineNo">240</span> }<a name="line.240"></a>
<span class="sourceLineNo">241</span><a name="line.241"></a>
<span class="sourceLineNo">242</span> /**<a name="line.242"></a>
<span class="sourceLineNo">243</span> * {@inheritDoc}<a name="line.243"></a>
<span class="sourceLineNo">244</span> */<a name="line.244"></a>
<span class="sourceLineNo">245</span> public void putChar(int index, char c) {<a name="line.245"></a>
<span class="sourceLineNo">246</span> bb.putChar(index, c);<a name="line.246"></a>
<span class="sourceLineNo">247</span> }<a name="line.247"></a>
<span class="sourceLineNo">248</span><a name="line.248"></a>
<span class="sourceLineNo">249</span> private class CursorImpl implements Cursor {<a name="line.249"></a>
<span class="sourceLineNo">250</span><a name="line.250"></a>
<span class="sourceLineNo">251</span> private int index;<a name="line.251"></a>
<span class="sourceLineNo">252</span><a name="line.252"></a>
<span class="sourceLineNo">253</span> public CursorImpl() {<a name="line.253"></a>
<span class="sourceLineNo">254</span> // This space intentionally blank.<a name="line.254"></a>
<span class="sourceLineNo">255</span> }<a name="line.255"></a>
<span class="sourceLineNo">256</span><a name="line.256"></a>
<span class="sourceLineNo">257</span> public CursorImpl(int index) {<a name="line.257"></a>
<span class="sourceLineNo">258</span> setIndex(index);<a name="line.258"></a>
<span class="sourceLineNo">259</span> }<a name="line.259"></a>
<span class="sourceLineNo">260</span><a name="line.260"></a>
<span class="sourceLineNo">261</span> /**<a name="line.261"></a>
<span class="sourceLineNo">262</span> * {@inheritDoc}<a name="line.262"></a>
<span class="sourceLineNo">263</span> */<a name="line.263"></a>
<span class="sourceLineNo">264</span> public int getRemaining() {<a name="line.264"></a>
<span class="sourceLineNo">265</span> return last() - index;<a name="line.265"></a>
<span class="sourceLineNo">266</span> }<a name="line.266"></a>
<span class="sourceLineNo">267</span><a name="line.267"></a>
<span class="sourceLineNo">268</span> /**<a name="line.268"></a>
<span class="sourceLineNo">269</span> * {@inheritDoc}<a name="line.269"></a>
<span class="sourceLineNo">270</span> */<a name="line.270"></a>
<span class="sourceLineNo">271</span> public boolean hasRemaining() {<a name="line.271"></a>
<span class="sourceLineNo">272</span> return getRemaining() &gt; 0;<a name="line.272"></a>
<span class="sourceLineNo">273</span> }<a name="line.273"></a>
<span class="sourceLineNo">274</span><a name="line.274"></a>
<span class="sourceLineNo">275</span> /**<a name="line.275"></a>
<span class="sourceLineNo">276</span> * {@inheritDoc}<a name="line.276"></a>
<span class="sourceLineNo">277</span> */<a name="line.277"></a>
<span class="sourceLineNo">278</span> public int getIndex() {<a name="line.278"></a>
<span class="sourceLineNo">279</span> return index;<a name="line.279"></a>
<span class="sourceLineNo">280</span> }<a name="line.280"></a>
<span class="sourceLineNo">281</span><a name="line.281"></a>
<span class="sourceLineNo">282</span> /**<a name="line.282"></a>
<span class="sourceLineNo">283</span> * {@inheritDoc}<a name="line.283"></a>
<span class="sourceLineNo">284</span> */<a name="line.284"></a>
<span class="sourceLineNo">285</span> public void setIndex(int index) {<a name="line.285"></a>
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<span class="sourceLineNo">424</span> public void putDouble(double d) {<a name="line.424"></a>
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<span class="sourceLineNo">426</span> index += 8;<a name="line.426"></a>
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<span class="sourceLineNo">432</span> public char getChar() {<a name="line.432"></a>
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<span class="sourceLineNo">434</span> index += 2;<a name="line.434"></a>
<span class="sourceLineNo">435</span> return c;<a name="line.435"></a>
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<span class="sourceLineNo">441</span> public void putChar(char c) {<a name="line.441"></a>
<span class="sourceLineNo">442</span> BufferByteArray.this.putChar(index, c);<a name="line.442"></a>
<span class="sourceLineNo">443</span> index += 2;<a name="line.443"></a>
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<span class="sourceLineNo">446</span>}<a name="line.446"></a>
</pre>
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