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| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">// The portion of this file denoted by 'Copied from com.google.protobuf.CodedOutputStream'</span> |
| <span class="source-line-no">019</span><span id="line-19">// is from Protocol Buffers v2.5.0 under the following license</span> |
| <span class="source-line-no">020</span><span id="line-20">//</span> |
| <span class="source-line-no">021</span><span id="line-21">// Protocol Buffers - Google's data interchange format</span> |
| <span class="source-line-no">022</span><span id="line-22">// Copyright 2008 Google Inc. All rights reserved.</span> |
| <span class="source-line-no">023</span><span id="line-23">// https://developers.google.com/protocol-buffers/</span> |
| <span class="source-line-no">024</span><span id="line-24">//</span> |
| <span class="source-line-no">025</span><span id="line-25">// Redistribution and use in source and binary forms, with or without</span> |
| <span class="source-line-no">026</span><span id="line-26">// modification, are permitted provided that the following conditions are</span> |
| <span class="source-line-no">027</span><span id="line-27">// met:</span> |
| <span class="source-line-no">028</span><span id="line-28">//</span> |
| <span class="source-line-no">029</span><span id="line-29">// * Redistributions of source code must retain the above copyright</span> |
| <span class="source-line-no">030</span><span id="line-30">// notice, this list of conditions and the following disclaimer.</span> |
| <span class="source-line-no">031</span><span id="line-31">// * Redistributions in binary form must reproduce the above</span> |
| <span class="source-line-no">032</span><span id="line-32">// copyright notice, this list of conditions and the following disclaimer</span> |
| <span class="source-line-no">033</span><span id="line-33">// in the documentation and/or other materials provided with the</span> |
| <span class="source-line-no">034</span><span id="line-34">// distribution.</span> |
| <span class="source-line-no">035</span><span id="line-35">// * Neither the name of Google Inc. nor the names of its</span> |
| <span class="source-line-no">036</span><span id="line-36">// contributors may be used to endorse or promote products derived from</span> |
| <span class="source-line-no">037</span><span id="line-37">// this software without specific prior written permission.</span> |
| <span class="source-line-no">038</span><span id="line-38">//</span> |
| <span class="source-line-no">039</span><span id="line-39">// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span> |
| <span class="source-line-no">040</span><span id="line-40">// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span> |
| <span class="source-line-no">041</span><span id="line-41">// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR</span> |
| <span class="source-line-no">042</span><span id="line-42">// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT</span> |
| <span class="source-line-no">043</span><span id="line-43">// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span> |
| <span class="source-line-no">044</span><span id="line-44">// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT</span> |
| <span class="source-line-no">045</span><span id="line-45">// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,</span> |
| <span class="source-line-no">046</span><span id="line-46">// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY</span> |
| <span class="source-line-no">047</span><span id="line-47">// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT</span> |
| <span class="source-line-no">048</span><span id="line-48">// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE</span> |
| <span class="source-line-no">049</span><span id="line-49">// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span> |
| <span class="source-line-no">050</span><span id="line-50">package org.apache.hadoop.hbase.util;</span> |
| <span class="source-line-no">051</span><span id="line-51"></span> |
| <span class="source-line-no">052</span><span id="line-52">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">053</span><span id="line-53"></span> |
| <span class="source-line-no">054</span><span id="line-54">/**</span> |
| <span class="source-line-no">055</span><span id="line-55"> * A basic mutable {@link ByteRange} implementation.</span> |
| <span class="source-line-no">056</span><span id="line-56"> */</span> |
| <span class="source-line-no">057</span><span id="line-57">@InterfaceAudience.Public</span> |
| <span class="source-line-no">058</span><span id="line-58">public class SimpleMutableByteRange extends AbstractByteRange {</span> |
| <span class="source-line-no">059</span><span id="line-59"></span> |
| <span class="source-line-no">060</span><span id="line-60"> /**</span> |
| <span class="source-line-no">061</span><span id="line-61"> * Create a new {@code ByteRange} lacking a backing array and with an undefined viewport.</span> |
| <span class="source-line-no">062</span><span id="line-62"> */</span> |
| <span class="source-line-no">063</span><span id="line-63"> public SimpleMutableByteRange() {</span> |
| <span class="source-line-no">064</span><span id="line-64"> unset();</span> |
| <span class="source-line-no">065</span><span id="line-65"> }</span> |
| <span class="source-line-no">066</span><span id="line-66"></span> |
| <span class="source-line-no">067</span><span id="line-67"> /**</span> |
| <span class="source-line-no">068</span><span id="line-68"> * Create a new {@code ByteRange} over a new backing array of size {@code capacity}. The range's</span> |
| <span class="source-line-no">069</span><span id="line-69"> * offset and length are 0 and {@code capacity}, respectively. the size of the backing array.</span> |
| <span class="source-line-no">070</span><span id="line-70"> */</span> |
| <span class="source-line-no">071</span><span id="line-71"> public SimpleMutableByteRange(int capacity) {</span> |
| <span class="source-line-no">072</span><span id="line-72"> this(new byte[capacity]);</span> |
| <span class="source-line-no">073</span><span id="line-73"> }</span> |
| <span class="source-line-no">074</span><span id="line-74"></span> |
| <span class="source-line-no">075</span><span id="line-75"> /**</span> |
| <span class="source-line-no">076</span><span id="line-76"> * Create a new {@code ByteRange} over the provided {@code bytes}. The array to wrap.</span> |
| <span class="source-line-no">077</span><span id="line-77"> */</span> |
| <span class="source-line-no">078</span><span id="line-78"> public SimpleMutableByteRange(byte[] bytes) {</span> |
| <span class="source-line-no">079</span><span id="line-79"> set(bytes);</span> |
| <span class="source-line-no">080</span><span id="line-80"> }</span> |
| <span class="source-line-no">081</span><span id="line-81"></span> |
| <span class="source-line-no">082</span><span id="line-82"> /**</span> |
| <span class="source-line-no">083</span><span id="line-83"> * Create a new {@code ByteRange} over the provided {@code bytes}. The array to wrap. The offset</span> |
| <span class="source-line-no">084</span><span id="line-84"> * into {@code bytes} considered the beginning of this range. The length of this range.</span> |
| <span class="source-line-no">085</span><span id="line-85"> */</span> |
| <span class="source-line-no">086</span><span id="line-86"> public SimpleMutableByteRange(byte[] bytes, int offset, int length) {</span> |
| <span class="source-line-no">087</span><span id="line-87"> set(bytes, offset, length);</span> |
| <span class="source-line-no">088</span><span id="line-88"> }</span> |
| <span class="source-line-no">089</span><span id="line-89"></span> |
| <span class="source-line-no">090</span><span id="line-90"> @Override</span> |
| <span class="source-line-no">091</span><span id="line-91"> public ByteRange unset() {</span> |
| <span class="source-line-no">092</span><span id="line-92"> clearHashCache();</span> |
| <span class="source-line-no">093</span><span id="line-93"> bytes = null;</span> |
| <span class="source-line-no">094</span><span id="line-94"> offset = 0;</span> |
| <span class="source-line-no">095</span><span id="line-95"> length = 0;</span> |
| <span class="source-line-no">096</span><span id="line-96"> return this;</span> |
| <span class="source-line-no">097</span><span id="line-97"> }</span> |
| <span class="source-line-no">098</span><span id="line-98"></span> |
| <span class="source-line-no">099</span><span id="line-99"> @Override</span> |
| <span class="source-line-no">100</span><span id="line-100"> public ByteRange put(int index, byte val) {</span> |
| <span class="source-line-no">101</span><span id="line-101"> bytes[offset + index] = val;</span> |
| <span class="source-line-no">102</span><span id="line-102"> clearHashCache();</span> |
| <span class="source-line-no">103</span><span id="line-103"> return this;</span> |
| <span class="source-line-no">104</span><span id="line-104"> }</span> |
| <span class="source-line-no">105</span><span id="line-105"></span> |
| <span class="source-line-no">106</span><span id="line-106"> @Override</span> |
| <span class="source-line-no">107</span><span id="line-107"> public ByteRange put(int index, byte[] val) {</span> |
| <span class="source-line-no">108</span><span id="line-108"> if (0 == val.length) return this;</span> |
| <span class="source-line-no">109</span><span id="line-109"> return put(index, val, 0, val.length);</span> |
| <span class="source-line-no">110</span><span id="line-110"> }</span> |
| <span class="source-line-no">111</span><span id="line-111"></span> |
| <span class="source-line-no">112</span><span id="line-112"> @Override</span> |
| <span class="source-line-no">113</span><span id="line-113"> public ByteRange put(int index, byte[] val, int offset, int length) {</span> |
| <span class="source-line-no">114</span><span id="line-114"> if (0 == length) return this;</span> |
| <span class="source-line-no">115</span><span id="line-115"> System.arraycopy(val, offset, this.bytes, this.offset + index, length);</span> |
| <span class="source-line-no">116</span><span id="line-116"> clearHashCache();</span> |
| <span class="source-line-no">117</span><span id="line-117"> return this;</span> |
| <span class="source-line-no">118</span><span id="line-118"> }</span> |
| <span class="source-line-no">119</span><span id="line-119"></span> |
| <span class="source-line-no">120</span><span id="line-120"> @Override</span> |
| <span class="source-line-no">121</span><span id="line-121"> public ByteRange putShort(int index, short val) {</span> |
| <span class="source-line-no">122</span><span id="line-122"> // This writing is same as BB's putShort. When byte[] is wrapped in a BB and</span> |
| <span class="source-line-no">123</span><span id="line-123"> // call putShort(),</span> |
| <span class="source-line-no">124</span><span id="line-124"> // one can get the same result.</span> |
| <span class="source-line-no">125</span><span id="line-125"> bytes[offset + index + 1] = (byte) val;</span> |
| <span class="source-line-no">126</span><span id="line-126"> val >>= 8;</span> |
| <span class="source-line-no">127</span><span id="line-127"> bytes[offset + index] = (byte) val;</span> |
| <span class="source-line-no">128</span><span id="line-128"> clearHashCache();</span> |
| <span class="source-line-no">129</span><span id="line-129"> return this;</span> |
| <span class="source-line-no">130</span><span id="line-130"> }</span> |
| <span class="source-line-no">131</span><span id="line-131"></span> |
| <span class="source-line-no">132</span><span id="line-132"> @Override</span> |
| <span class="source-line-no">133</span><span id="line-133"> public ByteRange putInt(int index, int val) {</span> |
| <span class="source-line-no">134</span><span id="line-134"> // This writing is same as BB's putInt. When byte[] is wrapped in a BB and</span> |
| <span class="source-line-no">135</span><span id="line-135"> // call getInt(), one</span> |
| <span class="source-line-no">136</span><span id="line-136"> // can get the same result.</span> |
| <span class="source-line-no">137</span><span id="line-137"> for (int i = Bytes.SIZEOF_INT - 1; i > 0; i--) {</span> |
| <span class="source-line-no">138</span><span id="line-138"> bytes[offset + index + i] = (byte) val;</span> |
| <span class="source-line-no">139</span><span id="line-139"> val >>>= 8;</span> |
| <span class="source-line-no">140</span><span id="line-140"> }</span> |
| <span class="source-line-no">141</span><span id="line-141"> bytes[offset + index] = (byte) val;</span> |
| <span class="source-line-no">142</span><span id="line-142"> clearHashCache();</span> |
| <span class="source-line-no">143</span><span id="line-143"> return this;</span> |
| <span class="source-line-no">144</span><span id="line-144"> }</span> |
| <span class="source-line-no">145</span><span id="line-145"></span> |
| <span class="source-line-no">146</span><span id="line-146"> @Override</span> |
| <span class="source-line-no">147</span><span id="line-147"> public ByteRange putLong(int index, long val) {</span> |
| <span class="source-line-no">148</span><span id="line-148"> // This writing is same as BB's putLong. When byte[] is wrapped in a BB and</span> |
| <span class="source-line-no">149</span><span id="line-149"> // call putLong(), one</span> |
| <span class="source-line-no">150</span><span id="line-150"> // can get the same result.</span> |
| <span class="source-line-no">151</span><span id="line-151"> for (int i = Bytes.SIZEOF_LONG - 1; i > 0; i--) {</span> |
| <span class="source-line-no">152</span><span id="line-152"> bytes[offset + index + i] = (byte) val;</span> |
| <span class="source-line-no">153</span><span id="line-153"> val >>>= 8;</span> |
| <span class="source-line-no">154</span><span id="line-154"> }</span> |
| <span class="source-line-no">155</span><span id="line-155"> bytes[offset + index] = (byte) val;</span> |
| <span class="source-line-no">156</span><span id="line-156"> clearHashCache();</span> |
| <span class="source-line-no">157</span><span id="line-157"> return this;</span> |
| <span class="source-line-no">158</span><span id="line-158"> }</span> |
| <span class="source-line-no">159</span><span id="line-159"></span> |
| <span class="source-line-no">160</span><span id="line-160"> // Copied from com.google.protobuf.CodedOutputStream v2.5.0 writeRawVarint64</span> |
| <span class="source-line-no">161</span><span id="line-161"> @Override</span> |
| <span class="source-line-no">162</span><span id="line-162"> public int putVLong(int index, long val) {</span> |
| <span class="source-line-no">163</span><span id="line-163"> int rPos = 0;</span> |
| <span class="source-line-no">164</span><span id="line-164"> while (true) {</span> |
| <span class="source-line-no">165</span><span id="line-165"> if ((val & ~0x7F) == 0) {</span> |
| <span class="source-line-no">166</span><span id="line-166"> bytes[offset + index + rPos] = (byte) val;</span> |
| <span class="source-line-no">167</span><span id="line-167"> break;</span> |
| <span class="source-line-no">168</span><span id="line-168"> } else {</span> |
| <span class="source-line-no">169</span><span id="line-169"> bytes[offset + index + rPos] = (byte) ((val & 0x7F) | 0x80);</span> |
| <span class="source-line-no">170</span><span id="line-170"> val >>>= 7;</span> |
| <span class="source-line-no">171</span><span id="line-171"> }</span> |
| <span class="source-line-no">172</span><span id="line-172"> rPos++;</span> |
| <span class="source-line-no">173</span><span id="line-173"> }</span> |
| <span class="source-line-no">174</span><span id="line-174"> clearHashCache();</span> |
| <span class="source-line-no">175</span><span id="line-175"> return rPos + 1;</span> |
| <span class="source-line-no">176</span><span id="line-176"> }</span> |
| <span class="source-line-no">177</span><span id="line-177"> // end copied from protobuf</span> |
| <span class="source-line-no">178</span><span id="line-178"></span> |
| <span class="source-line-no">179</span><span id="line-179"> @Override</span> |
| <span class="source-line-no">180</span><span id="line-180"> public ByteRange deepCopy() {</span> |
| <span class="source-line-no">181</span><span id="line-181"> SimpleMutableByteRange clone = new SimpleMutableByteRange(deepCopyToNewArray());</span> |
| <span class="source-line-no">182</span><span id="line-182"> if (isHashCached()) {</span> |
| <span class="source-line-no">183</span><span id="line-183"> clone.hash = hash;</span> |
| <span class="source-line-no">184</span><span id="line-184"> }</span> |
| <span class="source-line-no">185</span><span id="line-185"> return clone;</span> |
| <span class="source-line-no">186</span><span id="line-186"> }</span> |
| <span class="source-line-no">187</span><span id="line-187"></span> |
| <span class="source-line-no">188</span><span id="line-188"> @Override</span> |
| <span class="source-line-no">189</span><span id="line-189"> public ByteRange shallowCopy() {</span> |
| <span class="source-line-no">190</span><span id="line-190"> SimpleMutableByteRange clone = new SimpleMutableByteRange(bytes, offset, length);</span> |
| <span class="source-line-no">191</span><span id="line-191"> if (isHashCached()) {</span> |
| <span class="source-line-no">192</span><span id="line-192"> clone.hash = hash;</span> |
| <span class="source-line-no">193</span><span id="line-193"> }</span> |
| <span class="source-line-no">194</span><span id="line-194"> return clone;</span> |
| <span class="source-line-no">195</span><span id="line-195"> }</span> |
| <span class="source-line-no">196</span><span id="line-196"></span> |
| <span class="source-line-no">197</span><span id="line-197"> @Override</span> |
| <span class="source-line-no">198</span><span id="line-198"> public ByteRange shallowCopySubRange(int innerOffset, int copyLength) {</span> |
| <span class="source-line-no">199</span><span id="line-199"> SimpleMutableByteRange clone =</span> |
| <span class="source-line-no">200</span><span id="line-200"> new SimpleMutableByteRange(bytes, offset + innerOffset, copyLength);</span> |
| <span class="source-line-no">201</span><span id="line-201"> if (isHashCached()) {</span> |
| <span class="source-line-no">202</span><span id="line-202"> clone.hash = hash;</span> |
| <span class="source-line-no">203</span><span id="line-203"> }</span> |
| <span class="source-line-no">204</span><span id="line-204"> return clone;</span> |
| <span class="source-line-no">205</span><span id="line-205"> }</span> |
| <span class="source-line-no">206</span><span id="line-206"></span> |
| <span class="source-line-no">207</span><span id="line-207"> @Override</span> |
| <span class="source-line-no">208</span><span id="line-208"> public boolean equals(Object thatObject) {</span> |
| <span class="source-line-no">209</span><span id="line-209"> if (thatObject == null) {</span> |
| <span class="source-line-no">210</span><span id="line-210"> return false;</span> |
| <span class="source-line-no">211</span><span id="line-211"> }</span> |
| <span class="source-line-no">212</span><span id="line-212"> if (this == thatObject) {</span> |
| <span class="source-line-no">213</span><span id="line-213"> return true;</span> |
| <span class="source-line-no">214</span><span id="line-214"> }</span> |
| <span class="source-line-no">215</span><span id="line-215"> if (hashCode() != thatObject.hashCode()) {</span> |
| <span class="source-line-no">216</span><span id="line-216"> return false;</span> |
| <span class="source-line-no">217</span><span id="line-217"> }</span> |
| <span class="source-line-no">218</span><span id="line-218"> if (!(thatObject instanceof SimpleMutableByteRange)) {</span> |
| <span class="source-line-no">219</span><span id="line-219"> return false;</span> |
| <span class="source-line-no">220</span><span id="line-220"> }</span> |
| <span class="source-line-no">221</span><span id="line-221"> SimpleMutableByteRange that = (SimpleMutableByteRange) thatObject;</span> |
| <span class="source-line-no">222</span><span id="line-222"> return Bytes.equals(bytes, offset, length, that.bytes, that.offset, that.length);</span> |
| <span class="source-line-no">223</span><span id="line-223"> }</span> |
| <span class="source-line-no">224</span><span id="line-224"></span> |
| <span class="source-line-no">225</span><span id="line-225">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
