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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 or more contributor license agreements. See the NOTICE file *<a name="line.2"></a> |
| <span class="sourceLineNo">003</span>// * distributed with this work for additional information regarding copyright ownership. The ASF licenses this file *<a name="line.3"></a> |
| <span class="sourceLineNo">004</span>// * to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance *<a name="line.4"></a> |
| <span class="sourceLineNo">005</span>// * with the License. You may obtain a copy of the License at *<a name="line.5"></a> |
| <span class="sourceLineNo">006</span>// * *<a name="line.6"></a> |
| <span class="sourceLineNo">007</span>// * http://www.apache.org/licenses/LICENSE-2.0 *<a name="line.7"></a> |
| <span class="sourceLineNo">008</span>// * *<a name="line.8"></a> |
| <span class="sourceLineNo">009</span>// * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span>// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the *<a name="line.10"></a> |
| <span class="sourceLineNo">011</span>// * specific language governing permissions and limitations under the License. *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span>// ***************************************************************************************************************************<a name="line.12"></a> |
| <span class="sourceLineNo">013</span>package org.apache.juneau.msgpack;<a name="line.13"></a> |
| <span class="sourceLineNo">014</span><a name="line.14"></a> |
| <span class="sourceLineNo">015</span>import static org.apache.juneau.internal.IOUtils.*;<a name="line.15"></a> |
| <span class="sourceLineNo">016</span>import static org.apache.juneau.msgpack.DataType.*;<a name="line.16"></a> |
| <span class="sourceLineNo">017</span><a name="line.17"></a> |
| <span class="sourceLineNo">018</span>import java.io.*;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import org.apache.juneau.parser.*;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span><a name="line.21"></a> |
| <span class="sourceLineNo">022</span>/**<a name="line.22"></a> |
| <span class="sourceLineNo">023</span> * Specialized input stream for parsing MessagePack streams.<a name="line.23"></a> |
| <span class="sourceLineNo">024</span> *<a name="line.24"></a> |
| <span class="sourceLineNo">025</span> * <ul class='notes'><a name="line.25"></a> |
| <span class="sourceLineNo">026</span> * <li><a name="line.26"></a> |
| <span class="sourceLineNo">027</span> * This class is not intended for external use.<a name="line.27"></a> |
| <span class="sourceLineNo">028</span> * </ul><a name="line.28"></a> |
| <span class="sourceLineNo">029</span> */<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>public final class MsgPackInputStream extends ParserInputStream {<a name="line.30"></a> |
| <span class="sourceLineNo">031</span><a name="line.31"></a> |
| <span class="sourceLineNo">032</span> private DataType currentDataType;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span> private long length;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span> private int lastByte;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span> private int extType;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span> int pos = 0;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span><a name="line.37"></a> |
| <span class="sourceLineNo">038</span> // Data type quick-lookup table.<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> private static final DataType[] TYPES = new DataType[] {<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> /*0x0?*/ INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> /*0x1?*/ INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> /*0x2?*/ INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> /*0x3?*/ INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> /*0x4?*/ INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> /*0x5?*/ INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> /*0x6?*/ INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> /*0x7?*/ INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> /*0x8?*/ MAP,MAP,MAP,MAP,MAP,MAP,MAP,MAP,MAP,MAP,MAP,MAP,MAP,MAP,MAP,MAP,<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> /*0x9?*/ ARRAY,ARRAY,ARRAY,ARRAY,ARRAY,ARRAY,ARRAY,ARRAY,ARRAY,ARRAY,ARRAY,ARRAY,ARRAY,ARRAY,ARRAY,ARRAY,<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> /*0xA?*/ STRING,STRING,STRING,STRING,STRING,STRING,STRING,STRING,STRING,STRING,STRING,STRING,STRING,STRING,STRING,STRING,<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> /*0xB?*/ STRING,STRING,STRING,STRING,STRING,STRING,STRING,STRING,STRING,STRING,STRING,STRING,STRING,STRING,STRING,STRING,<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> /*0xC?*/ NULL, INVALID, BOOLEAN, BOOLEAN, BIN, BIN, BIN, EXT, EXT, EXT, FLOAT, DOUBLE, INT, INT, LONG, LONG,<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> /*0xD?*/ INT, INT, INT, LONG, EXT, EXT, EXT, EXT, EXT, STRING, STRING, STRING, ARRAY, ARRAY, MAP, MAP,<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> /*0xE?*/ INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> /*0xF?*/ INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT,INT<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> };<a name="line.56"></a> |
| <span class="sourceLineNo">057</span><a name="line.57"></a> |
| <span class="sourceLineNo">058</span> /**<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> * Constructor.<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> *<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> * @param pipe The parser input.<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> * @throws IOException Thrown by underlying stream.<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> */<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> protected MsgPackInputStream(ParserPipe pipe) throws IOException {<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> super(pipe);<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> * Reads the data type flag from the stream.<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> *<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> * <p><a name="line.71"></a> |
| <span class="sourceLineNo">072</span> * This is the byte that indicates what kind of data follows.<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> */<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> DataType readDataType() throws IOException {<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> int i = read();<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> if (i == -1)<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> throw new IOException("Unexpected end of file found at position " + pos);<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> currentDataType = TYPES[i];<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> switch (currentDataType) {<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> case NULL:<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> case FLOAT: {<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> length = 4;<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> break;<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> }<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> case DOUBLE: {<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> length = 8;<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> break;<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> }<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> case BOOLEAN: {<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> lastByte = i;<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> break;<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> }<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> case INT: {<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> // positive fixnum stores 7-bit positive integer<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> // +--------+<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> // |0XXXXXXX|<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> // +--------+<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> //<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> // negative fixnum stores 5-bit negative integer<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> // +--------+<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> // |111YYYYY|<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> // +--------+<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> //<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> // * 0XXXXXXX is 8-bit unsigned integer<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> // * 111YYYYY is 8-bit signed integer<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> //<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> // uint 8 stores a 8-bit unsigned integer<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> // +--------+--------+<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> // | 0xcc |ZZZZZZZZ|<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> // +--------+--------+<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> //<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> // uint 16 stores a 16-bit big-endian unsigned integer<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> // +--------+--------+--------+<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> // | 0xcd |ZZZZZZZZ|ZZZZZZZZ|<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> // +--------+--------+--------+<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> //<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> // uint 32 stores a 32-bit big-endian unsigned integer<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> // +--------+--------+--------+--------+--------+<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> // | 0xce |ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ|<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> // uint 64 stores a 64-bit big-endian unsigned integer<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> // +--------+--------+--------+--------+--------+--------+--------+--------+--------+<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> // | 0xcf |ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ|<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> // +--------+--------+--------+--------+--------+--------+--------+--------+--------+<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> //<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> // int 8 stores a 8-bit signed integer<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> // +--------+--------+<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> // | 0xd0 |ZZZZZZZZ|<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> // +--------+--------+<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> //<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> // int 16 stores a 16-bit big-endian signed integer<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> // +--------+--------+--------+<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> // | 0xd1 |ZZZZZZZZ|ZZZZZZZZ|<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> // +--------+--------+--------+<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> //<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> // int 32 stores a 32-bit big-endian signed integer<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> // +--------+--------+--------+--------+--------+<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> // | 0xd2 |ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ|<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> // int 64 stores a 64-bit big-endian signed integer<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> // +--------+--------+--------+--------+--------+--------+--------+--------+--------+<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> // | 0xd3 |ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ|<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> // +--------+--------+--------+--------+--------+--------+--------+--------+--------+<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> lastByte = i;<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> if (i <= POSFIXINT_U)<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> length = 0;<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> else if (i >= NEGFIXINT_L)<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> length = -1;<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> else if (i == INT8 || i == UINT8)<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> length = 1;<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> else if (i == INT16 || i == UINT16)<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> length = 2;<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> else if (i == INT32)<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> length = 4;<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> else<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> length = 0;<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> break;<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> }<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> case LONG: {<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> if (i == UINT32)<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> length = 4;<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> else if (i == INT64 || i == UINT64)<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> length = 8;<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> else<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> length = 0;<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> break;<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> }<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> case STRING:{<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> // fixstr stores a byte array whose length is up to 31 bytes:<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> // +--------+========+<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> // |101XXXXX| data |<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> // +--------+========+<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> //<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> // str 8 stores a byte array whose length is up to (2^8)-1 bytes:<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> // +--------+--------+========+<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> // | 0xd9 |YYYYYYYY| data |<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> // +--------+--------+========+<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> //<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> // str 16 stores a byte array whose length is up to (2^16)-1 bytes:<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> // +--------+--------+--------+========+<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> // | 0xda |ZZZZZZZZ|ZZZZZZZZ| data |<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> // str 32 stores a byte array whose length is up to (2^32)-1 bytes:<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> // +--------+--------+--------+--------+--------+========+<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> // | 0xdb |AAAAAAAA|AAAAAAAA|AAAAAAAA|AAAAAAAA| data |<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> // +--------+--------+--------+--------+--------+========+<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> //<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> // where<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> // * XXXXX is a 5-bit unsigned integer which represents N<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> // * YYYYYYYY is a 8-bit unsigned integer which represents N<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> // * ZZZZZZZZ_ZZZZZZZZ is a 16-bit big-endian unsigned integer which represents N<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> // * AAAAAAAA_AAAAAAAA_AAAAAAAA_AAAAAAAA is a 32-bit big-endian unsigned integer which represents N<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> // * N is the length of data<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> if (i <= FIXSTR_U)<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> length = i & 0x1F;<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> else if (i == STR8)<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> length = readUInt1();<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> else if (i == STR16)<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> length = readUInt2();<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> else<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> length = readUInt4();<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> break;<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> }<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> case ARRAY: {<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> // fixarray stores an array whose length is up to 15 elements:<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> // +--------+~~~~~~~~~~~~~~~~~+<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> // |1001XXXX| N objects |<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> // +--------+~~~~~~~~~~~~~~~~~+<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> //<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> // array 16 stores an array whose length is up to (2^16)-1 elements:<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> // +--------+--------+--------+~~~~~~~~~~~~~~~~~+<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> // | 0xdc |YYYYYYYY|YYYYYYYY| N objects |<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> // +--------+--------+--------+~~~~~~~~~~~~~~~~~+<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> //<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> // array 32 stores an array whose length is up to (2^32)-1 elements:<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> // +--------+--------+--------+--------+--------+~~~~~~~~~~~~~~~~~+<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> // | 0xdd |ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ| N objects |<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> // +--------+--------+--------+--------+--------+~~~~~~~~~~~~~~~~~+<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> //<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> // where<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> // * XXXX is a 4-bit unsigned integer which represents N<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> // * YYYYYYYY_YYYYYYYY is a 16-bit big-endian unsigned integer which represents N<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> // * ZZZZZZZZ_ZZZZZZZZ_ZZZZZZZZ_ZZZZZZZZ is a 32-bit big-endian unsigned integer which represents N<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> // N is the size of a array<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> if (i <= FIXARRAY_U)<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> length = i & 0x0F;<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> else if (i == ARRAY16)<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> length = readUInt2();<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> else<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> length = readUInt4();<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> break;<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> }<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> case BIN:{<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> // bin 8 stores a byte array whose length is up to (2^8)-1 bytes:<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> // +--------+--------+========+<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> // | 0xc4 |XXXXXXXX| data |<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> // bin 16 stores a byte array whose length is up to (2^16)-1 bytes:<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> // +--------+--------+--------+========+<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> // | 0xc5 |YYYYYYYY|YYYYYYYY| data |<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> // +--------+--------+--------+========+<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> //<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> // bin 32 stores a byte array whose length is up to (2^32)-1 bytes:<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> // +--------+--------+--------+--------+--------+========+<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> // | 0xc6 |ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ| data |<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> // +--------+--------+--------+--------+--------+========+<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> //<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> // where<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> // * XXXXXXXX is a 8-bit unsigned integer which represents N<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> // * YYYYYYYY_YYYYYYYY is a 16-bit big-endian unsigned integer which represents N<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> // * ZZZZZZZZ_ZZZZZZZZ_ZZZZZZZZ_ZZZZZZZZ is a 32-bit big-endian unsigned integer which represents N<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> // * N is the length of data<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> if (i == BIN8)<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> length = readUInt1();<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> else if (i == BIN16)<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> length = readUInt2();<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> else<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> length = readUInt4();<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> break;<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> }<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> case EXT:{<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> // fixext 1 stores an integer and a byte array whose length is 1 byte<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> // +--------+--------+--------+<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> // | 0xd4 | type | data |<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> // +--------+--------+--------+<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> //<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> // fixext 2 stores an integer and a byte array whose length is 2 bytes<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> // +--------+--------+--------+--------+<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> // | 0xd5 | type | data |<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> // fixext 4 stores an integer and a byte array whose length is 4 bytes<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> // +--------+--------+--------+--------+--------+--------+<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> // | 0xd6 | type | data |<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> // +--------+--------+--------+--------+--------+--------+<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> //<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> // fixext 8 stores an integer and a byte array whose length is 8 bytes<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> // +--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> // | 0xd7 | type | data |<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> // +--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> //<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> // fixext 16 stores an integer and a byte array whose length is 16 bytes<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> // +--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> // | 0xd8 | type | data<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> // +--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> // +--------+--------+--------+--------+--------+--------+--------+--------+<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> // data (cont.) |<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> // +--------+--------+--------+--------+--------+--------+--------+--------+<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> //<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> // ext 8 stores an integer and a byte array whose length is up to (2^8)-1 bytes:<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> // +--------+--------+--------+========+<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> // | 0xc7 |XXXXXXXX| type | data |<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> // +--------+--------+--------+========+<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> //<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> // ext 16 stores an integer and a byte array whose length is up to (2^16)-1 bytes:<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> // +--------+--------+--------+--------+========+<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> // | 0xc8 |YYYYYYYY|YYYYYYYY| type | data |<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> // +--------+--------+--------+--------+========+<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> //<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> // ext 32 stores an integer and a byte array whose length is up to (2^32)-1 bytes:<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> // +--------+--------+--------+--------+--------+--------+========+<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> // | 0xc9 |ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ| type | data |<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> // +--------+--------+--------+--------+--------+--------+========+<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> //<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> // where<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> // * XXXXXXXX is a 8-bit unsigned integer which represents N<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> // * YYYYYYYY_YYYYYYYY is a 16-bit big-endian unsigned integer which represents N<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> // * ZZZZZZZZ_ZZZZZZZZ_ZZZZZZZZ_ZZZZZZZZ is a big-endian 32-bit unsigned integer which represents N<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> // * N is a length of data<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> // * type is a signed 8-bit signed integer<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> // * type < 0 is reserved for future extension including 2-byte type information<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> if (i == FIXEXT1)<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> length = 1;<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> else if (i == FIXEXT2)<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> length = 2;<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> else if (i == FIXEXT4)<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> length = 4;<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> else if (i == FIXEXT8)<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> length = 8;<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> else if (i == FIXEXT16)<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> length = 16;<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> else if (i == EXT8)<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> length = readUInt1();<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> else if (i == EXT16)<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> length = readUInt2();<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> else if (i == EXT32)<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> length = readUInt4();<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> extType = read();<a name="line.332"></a> |
| <span class="sourceLineNo">333</span><a name="line.333"></a> |
| <span class="sourceLineNo">334</span> break;<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> }<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> case MAP:{<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> // fixmap stores a map whose length is up to 15 elements<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> // +--------+~~~~~~~~~~~~~~~~~+<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> // |1000XXXX| N*2 objects |<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> // +--------+~~~~~~~~~~~~~~~~~+<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> //<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> // map 16 stores a map whose length is up to (2^16)-1 elements<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> // +--------+--------+--------+~~~~~~~~~~~~~~~~~+<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> // | 0xde |YYYYYYYY|YYYYYYYY| N*2 objects |<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> // +--------+--------+--------+~~~~~~~~~~~~~~~~~+<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> //<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> // map 32 stores a map whose length is up to (2^32)-1 elements<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> // +--------+--------+--------+--------+--------+~~~~~~~~~~~~~~~~~+<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> // | 0xdf |ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ|ZZZZZZZZ| N*2 objects |<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> // +--------+--------+--------+--------+--------+~~~~~~~~~~~~~~~~~+<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> //<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> // where<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> // * XXXX is a 4-bit unsigned integer which represents N<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> // * YYYYYYYY_YYYYYYYY is a 16-bit big-endian unsigned integer which represents N<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> // * ZZZZZZZZ_ZZZZZZZZ_ZZZZZZZZ_ZZZZZZZZ is a 32-bit big-endian unsigned integer which represents N<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> // * N is the size of a map<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> // * odd elements in objects are keys of a map<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> // * the next element of a key is its associated value<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> if (i <= FIXMAP_U)<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> length = i & 0x0F;<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> else if (i == MAP16)<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> length = readUInt2();<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> else<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> length = readUInt4();<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> break;<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> }<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> default:<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> throw new IOException("Invalid flag 0xC1 detected in stream.");<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> }<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> return currentDataType;<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> }<a name="line.371"></a> |
| <span class="sourceLineNo">372</span><a name="line.372"></a> |
| <span class="sourceLineNo">373</span> /**<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> * Returns the length value for the field.<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> *<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> * <p><a name="line.376"></a> |
| <span class="sourceLineNo">377</span> * For ints/floats/bins/strings, this is the number of bytes that the field takes up (minus the data-type flag).<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> * For arrays, it's the number of array entries.<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> * For maps, it's the number of map entries.<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> */<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> long readLength() {<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> return length;<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> }<a name="line.383"></a> |
| <span class="sourceLineNo">384</span><a name="line.384"></a> |
| <span class="sourceLineNo">385</span> /**<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> * Read a boolean from the stream.<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> */<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> boolean readBoolean() {<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> return lastByte == TRUE;<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> }<a name="line.390"></a> |
| <span class="sourceLineNo">391</span><a name="line.391"></a> |
| <span class="sourceLineNo">392</span> /**<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> * Read a string from the stream.<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> */<a name="line.394"></a> |
| <span class="sourceLineNo">395</span> String readString() throws IOException {<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> return new String(readBinary(), UTF8);<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> }<a name="line.397"></a> |
| <span class="sourceLineNo">398</span><a name="line.398"></a> |
| <span class="sourceLineNo">399</span> /**<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> * Read a binary field from the stream.<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> */<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> byte[] readBinary() throws IOException {<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> byte[] b = new byte[(int)length];<a name="line.403"></a> |
| <span class="sourceLineNo">404</span> read(b);<a name="line.404"></a> |
| <span class="sourceLineNo">405</span> return b;<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> }<a name="line.406"></a> |
| <span class="sourceLineNo">407</span><a name="line.407"></a> |
| <span class="sourceLineNo">408</span> /**<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> * Read an integer from the stream.<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> */<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> int readInt() throws IOException {<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> if (length == 0)<a name="line.412"></a> |
| <span class="sourceLineNo">413</span> return lastByte;<a name="line.413"></a> |
| <span class="sourceLineNo">414</span> if (length == 1)<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> return read();<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> if (length == 2)<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> return (read() << 8) | read();<a name="line.417"></a> |
| <span class="sourceLineNo">418</span> int i = read(); i <<= 8; i |= read(); i <<= 8; i |= read(); i <<= 8; i |= read();<a name="line.418"></a> |
| <span class="sourceLineNo">419</span> return i;<a name="line.419"></a> |
| <span class="sourceLineNo">420</span> }<a name="line.420"></a> |
| <span class="sourceLineNo">421</span><a name="line.421"></a> |
| <span class="sourceLineNo">422</span> /**<a name="line.422"></a> |
| <span class="sourceLineNo">423</span> * Read a float from the stream.<a name="line.423"></a> |
| <span class="sourceLineNo">424</span> */<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> float readFloat() throws IOException {<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> return Float.intBitsToFloat(readInt());<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> }<a name="line.427"></a> |
| <span class="sourceLineNo">428</span><a name="line.428"></a> |
| <span class="sourceLineNo">429</span> /**<a name="line.429"></a> |
| <span class="sourceLineNo">430</span> * Read a double from the stream.<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> */<a name="line.431"></a> |
| <span class="sourceLineNo">432</span> double readDouble() throws IOException {<a name="line.432"></a> |
| <span class="sourceLineNo">433</span> return Double.longBitsToDouble(readLong());<a name="line.433"></a> |
| <span class="sourceLineNo">434</span> }<a name="line.434"></a> |
| <span class="sourceLineNo">435</span><a name="line.435"></a> |
| <span class="sourceLineNo">436</span> /**<a name="line.436"></a> |
| <span class="sourceLineNo">437</span> * Read 64-bit long from the stream.<a name="line.437"></a> |
| <span class="sourceLineNo">438</span> */<a name="line.438"></a> |
| <span class="sourceLineNo">439</span> long readLong() throws IOException {<a name="line.439"></a> |
| <span class="sourceLineNo">440</span> if (length == 4)<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> return readUInt4();<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> long l = read(); l <<= 8; l |= read(); l <<= 8; l |= read(); l <<= 8; l |= read(); l <<= 8; l |= read(); l <<= 8; l |= read(); l <<= 8; l |= read(); l <<= 8; l |= read();<a name="line.442"></a> |
| <span class="sourceLineNo">443</span> return l;<a name="line.443"></a> |
| <span class="sourceLineNo">444</span> }<a name="line.444"></a> |
| <span class="sourceLineNo">445</span><a name="line.445"></a> |
| <span class="sourceLineNo">446</span> /**<a name="line.446"></a> |
| <span class="sourceLineNo">447</span> * Return the extended-format type.<a name="line.447"></a> |
| <span class="sourceLineNo">448</span> * Currently not used.<a name="line.448"></a> |
| <span class="sourceLineNo">449</span> */<a name="line.449"></a> |
| <span class="sourceLineNo">450</span> int getExtType() {<a name="line.450"></a> |
| <span class="sourceLineNo">451</span> return extType;<a name="line.451"></a> |
| <span class="sourceLineNo">452</span> }<a name="line.452"></a> |
| <span class="sourceLineNo">453</span><a name="line.453"></a> |
| <span class="sourceLineNo">454</span> /**<a name="line.454"></a> |
| <span class="sourceLineNo">455</span> * Read one byte from the stream.<a name="line.455"></a> |
| <span class="sourceLineNo">456</span> */<a name="line.456"></a> |
| <span class="sourceLineNo">457</span> private int readUInt1() throws IOException {<a name="line.457"></a> |
| <span class="sourceLineNo">458</span> return read();<a name="line.458"></a> |
| <span class="sourceLineNo">459</span> }<a name="line.459"></a> |
| <span class="sourceLineNo">460</span><a name="line.460"></a> |
| <span class="sourceLineNo">461</span> /**<a name="line.461"></a> |
| <span class="sourceLineNo">462</span> * Read two bytes from the stream.<a name="line.462"></a> |
| <span class="sourceLineNo">463</span> */<a name="line.463"></a> |
| <span class="sourceLineNo">464</span> private int readUInt2() throws IOException {<a name="line.464"></a> |
| <span class="sourceLineNo">465</span> return (read() << 8) | read();<a name="line.465"></a> |
| <span class="sourceLineNo">466</span> }<a name="line.466"></a> |
| <span class="sourceLineNo">467</span><a name="line.467"></a> |
| <span class="sourceLineNo">468</span> /**<a name="line.468"></a> |
| <span class="sourceLineNo">469</span> * Read four bytes from the stream.<a name="line.469"></a> |
| <span class="sourceLineNo">470</span> */<a name="line.470"></a> |
| <span class="sourceLineNo">471</span> private long readUInt4() throws IOException {<a name="line.471"></a> |
| <span class="sourceLineNo">472</span> long l = read(); l <<= 8; l |= read(); l <<= 8; l |= read(); l <<= 8; l |= read();<a name="line.472"></a> |
| <span class="sourceLineNo">473</span> return l;<a name="line.473"></a> |
| <span class="sourceLineNo">474</span> }<a name="line.474"></a> |
| <span class="sourceLineNo">475</span>}<a name="line.475"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
