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From git-site-r...@apache.org
Subject [16/24] hbase-site git commit: Published site at .
Date Sun, 01 Oct 2017 15:13:30 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f7d654db/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/TimeRangeTracker.NonSyncTimeRangeTracker.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/TimeRangeTracker.NonSyncTimeRangeTracker.html b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/TimeRangeTracker.NonSyncTimeRangeTracker.html
new file mode 100644
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--- /dev/null
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/TimeRangeTracker.NonSyncTimeRangeTracker.html
@@ -0,0 +1,409 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html lang="en">
+<head>
+<title>Source code</title>
+<link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style">
+</head>
+<body>
+<div class="sourceContainer">
+<pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a>
+<span class="sourceLineNo">002</span> *<a name="line.2"></a>
+<span class="sourceLineNo">003</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.3"></a>
+<span class="sourceLineNo">004</span> * or more contributor license agreements.  See the NOTICE file<a name="line.4"></a>
+<span class="sourceLineNo">005</span> * distributed with this work for additional information<a name="line.5"></a>
+<span class="sourceLineNo">006</span> * regarding copyright ownership.  The ASF licenses this file<a name="line.6"></a>
+<span class="sourceLineNo">007</span> * to you under the Apache License, Version 2.0 (the<a name="line.7"></a>
+<span class="sourceLineNo">008</span> * "License"); you may not use this file except in compliance<a name="line.8"></a>
+<span class="sourceLineNo">009</span> * with the License.  You may obtain a copy of the License at<a name="line.9"></a>
+<span class="sourceLineNo">010</span> *<a name="line.10"></a>
+<span class="sourceLineNo">011</span> *     http://www.apache.org/licenses/LICENSE-2.0<a name="line.11"></a>
+<span class="sourceLineNo">012</span> *<a name="line.12"></a>
+<span class="sourceLineNo">013</span> * Unless required by applicable law or agreed to in writing, software<a name="line.13"></a>
+<span class="sourceLineNo">014</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.14"></a>
+<span class="sourceLineNo">015</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.15"></a>
+<span class="sourceLineNo">016</span> * See the License for the specific language governing permissions and<a name="line.16"></a>
+<span class="sourceLineNo">017</span> * limitations under the License.<a name="line.17"></a>
+<span class="sourceLineNo">018</span> */<a name="line.18"></a>
+<span class="sourceLineNo">019</span>package org.apache.hadoop.hbase.regionserver;<a name="line.19"></a>
+<span class="sourceLineNo">020</span><a name="line.20"></a>
+<span class="sourceLineNo">021</span>import java.io.DataInput;<a name="line.21"></a>
+<span class="sourceLineNo">022</span>import java.io.DataOutput;<a name="line.22"></a>
+<span class="sourceLineNo">023</span>import java.io.IOException;<a name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.util.concurrent.atomic.AtomicLong;<a name="line.24"></a>
+<span class="sourceLineNo">025</span><a name="line.25"></a>
+<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.Cell;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.CellUtil;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.io.TimeRange;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.util.Writables;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import org.apache.hadoop.io.Writable;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.31"></a>
+<span class="sourceLineNo">032</span><a name="line.32"></a>
+<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.shaded.com.google.common.annotations.VisibleForTesting;<a name="line.33"></a>
+<span class="sourceLineNo">034</span><a name="line.34"></a>
+<span class="sourceLineNo">035</span>/**<a name="line.35"></a>
+<span class="sourceLineNo">036</span> * Stores minimum and maximum timestamp values, it is [minimumTimestamp, maximumTimestamp] in<a name="line.36"></a>
+<span class="sourceLineNo">037</span> * interval notation.<a name="line.37"></a>
+<span class="sourceLineNo">038</span> * Use this class at write-time ONLY. Too much synchronization to use at read time<a name="line.38"></a>
+<span class="sourceLineNo">039</span> * Use {@link TimeRange} at read time instead of this. See toTimeRange() to make TimeRange to use.<a name="line.39"></a>
+<span class="sourceLineNo">040</span> * MemStores use this class to track minimum and maximum timestamps. The TimeRangeTracker made by<a name="line.40"></a>
+<span class="sourceLineNo">041</span> * the MemStore is passed to the StoreFile for it to write out as part a flush in the the file<a name="line.41"></a>
+<span class="sourceLineNo">042</span> * metadata. If no memstore involved -- i.e. a compaction -- then the StoreFile will calculate its<a name="line.42"></a>
+<span class="sourceLineNo">043</span> * own TimeRangeTracker as it appends. The StoreFile serialized TimeRangeTracker is used<a name="line.43"></a>
+<span class="sourceLineNo">044</span> * at read time via an instance of {@link TimeRange} to test if Cells fit the StoreFile TimeRange.<a name="line.44"></a>
+<span class="sourceLineNo">045</span> */<a name="line.45"></a>
+<span class="sourceLineNo">046</span>@InterfaceAudience.Private<a name="line.46"></a>
+<span class="sourceLineNo">047</span>public abstract class TimeRangeTracker implements Writable {<a name="line.47"></a>
+<span class="sourceLineNo">048</span><a name="line.48"></a>
+<span class="sourceLineNo">049</span>  public enum Type {<a name="line.49"></a>
+<span class="sourceLineNo">050</span>    // thread-unsafe<a name="line.50"></a>
+<span class="sourceLineNo">051</span>    NON_SYNC,<a name="line.51"></a>
+<span class="sourceLineNo">052</span>    // thread-safe<a name="line.52"></a>
+<span class="sourceLineNo">053</span>    SYNC<a name="line.53"></a>
+<span class="sourceLineNo">054</span>  }<a name="line.54"></a>
+<span class="sourceLineNo">055</span><a name="line.55"></a>
+<span class="sourceLineNo">056</span>  static final long INITIAL_MIN_TIMESTAMP = Long.MAX_VALUE;<a name="line.56"></a>
+<span class="sourceLineNo">057</span>  static final long INITIAL_MAX_TIMESTAMP = -1L;<a name="line.57"></a>
+<span class="sourceLineNo">058</span><a name="line.58"></a>
+<span class="sourceLineNo">059</span>  public static TimeRangeTracker create(Type type) {<a name="line.59"></a>
+<span class="sourceLineNo">060</span>    switch (type) {<a name="line.60"></a>
+<span class="sourceLineNo">061</span>      case NON_SYNC:<a name="line.61"></a>
+<span class="sourceLineNo">062</span>        return new NonSyncTimeRangeTracker();<a name="line.62"></a>
+<span class="sourceLineNo">063</span>      case SYNC:<a name="line.63"></a>
+<span class="sourceLineNo">064</span>        return new SyncTimeRangeTracker();<a name="line.64"></a>
+<span class="sourceLineNo">065</span>      default:<a name="line.65"></a>
+<span class="sourceLineNo">066</span>        throw new UnsupportedOperationException("The type:" + type + " is unsupported");<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><a name="line.69"></a>
+<span class="sourceLineNo">070</span>  public static TimeRangeTracker create(Type type, TimeRangeTracker trt) {<a name="line.70"></a>
+<span class="sourceLineNo">071</span>    switch (type) {<a name="line.71"></a>
+<span class="sourceLineNo">072</span>      case NON_SYNC:<a name="line.72"></a>
+<span class="sourceLineNo">073</span>        return new NonSyncTimeRangeTracker(trt);<a name="line.73"></a>
+<span class="sourceLineNo">074</span>      case SYNC:<a name="line.74"></a>
+<span class="sourceLineNo">075</span>        return new SyncTimeRangeTracker(trt);<a name="line.75"></a>
+<span class="sourceLineNo">076</span>      default:<a name="line.76"></a>
+<span class="sourceLineNo">077</span>        throw new UnsupportedOperationException("The type:" + type + " is unsupported");<a name="line.77"></a>
+<span class="sourceLineNo">078</span>    }<a name="line.78"></a>
+<span class="sourceLineNo">079</span>  }<a name="line.79"></a>
+<span class="sourceLineNo">080</span><a name="line.80"></a>
+<span class="sourceLineNo">081</span>  public static TimeRangeTracker create(Type type, long minimumTimestamp, long maximumTimestamp) {<a name="line.81"></a>
+<span class="sourceLineNo">082</span>    switch (type) {<a name="line.82"></a>
+<span class="sourceLineNo">083</span>      case NON_SYNC:<a name="line.83"></a>
+<span class="sourceLineNo">084</span>        return new NonSyncTimeRangeTracker(minimumTimestamp, maximumTimestamp);<a name="line.84"></a>
+<span class="sourceLineNo">085</span>      case SYNC:<a name="line.85"></a>
+<span class="sourceLineNo">086</span>        return new SyncTimeRangeTracker(minimumTimestamp, maximumTimestamp);<a name="line.86"></a>
+<span class="sourceLineNo">087</span>      default:<a name="line.87"></a>
+<span class="sourceLineNo">088</span>        throw new UnsupportedOperationException("The type:" + type + " is unsupported");<a name="line.88"></a>
+<span class="sourceLineNo">089</span>    }<a name="line.89"></a>
+<span class="sourceLineNo">090</span>  }<a name="line.90"></a>
+<span class="sourceLineNo">091</span><a name="line.91"></a>
+<span class="sourceLineNo">092</span>  protected abstract void setMax(long ts);<a name="line.92"></a>
+<span class="sourceLineNo">093</span>  protected abstract void setMin(long ts);<a name="line.93"></a>
+<span class="sourceLineNo">094</span>  protected abstract boolean compareAndSetMin(long expect, long update);<a name="line.94"></a>
+<span class="sourceLineNo">095</span>  protected abstract boolean compareAndSetMax(long expect, long update);<a name="line.95"></a>
+<span class="sourceLineNo">096</span>  /**<a name="line.96"></a>
+<span class="sourceLineNo">097</span>   * Update the current TimestampRange to include the timestamp from &lt;code&gt;cell&lt;/code&gt;.<a name="line.97"></a>
+<span class="sourceLineNo">098</span>   * If the Key is of type DeleteColumn or DeleteFamily, it includes the<a name="line.98"></a>
+<span class="sourceLineNo">099</span>   * entire time range from 0 to timestamp of the key.<a name="line.99"></a>
+<span class="sourceLineNo">100</span>   * @param cell the Cell to include<a name="line.100"></a>
+<span class="sourceLineNo">101</span>   */<a name="line.101"></a>
+<span class="sourceLineNo">102</span>  public void includeTimestamp(final Cell cell) {<a name="line.102"></a>
+<span class="sourceLineNo">103</span>    includeTimestamp(cell.getTimestamp());<a name="line.103"></a>
+<span class="sourceLineNo">104</span>    if (CellUtil.isDeleteColumnOrFamily(cell)) {<a name="line.104"></a>
+<span class="sourceLineNo">105</span>      includeTimestamp(0);<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><a name="line.108"></a>
+<span class="sourceLineNo">109</span>  /**<a name="line.109"></a>
+<span class="sourceLineNo">110</span>   * If required, update the current TimestampRange to include timestamp<a name="line.110"></a>
+<span class="sourceLineNo">111</span>   * @param timestamp the timestamp value to include<a name="line.111"></a>
+<span class="sourceLineNo">112</span>   */<a name="line.112"></a>
+<span class="sourceLineNo">113</span>  @edu.umd.cs.findbugs.annotations.SuppressWarnings(value="MT_CORRECTNESS",<a name="line.113"></a>
+<span class="sourceLineNo">114</span>      justification="Intentional")<a name="line.114"></a>
+<span class="sourceLineNo">115</span>  void includeTimestamp(final long timestamp) {<a name="line.115"></a>
+<span class="sourceLineNo">116</span>    long initialMinTimestamp = getMin();<a name="line.116"></a>
+<span class="sourceLineNo">117</span>    if (timestamp &lt; initialMinTimestamp) {<a name="line.117"></a>
+<span class="sourceLineNo">118</span>      long curMinTimestamp = initialMinTimestamp;<a name="line.118"></a>
+<span class="sourceLineNo">119</span>      while (timestamp &lt; curMinTimestamp) {<a name="line.119"></a>
+<span class="sourceLineNo">120</span>        if (!compareAndSetMin(curMinTimestamp, timestamp)) {<a name="line.120"></a>
+<span class="sourceLineNo">121</span>          curMinTimestamp = getMin();<a name="line.121"></a>
+<span class="sourceLineNo">122</span>        } else {<a name="line.122"></a>
+<span class="sourceLineNo">123</span>          // successfully set minimumTimestamp, break.<a name="line.123"></a>
+<span class="sourceLineNo">124</span>          break;<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><a name="line.127"></a>
+<span class="sourceLineNo">128</span>      // When it reaches here, there are two possibilities:<a name="line.128"></a>
+<span class="sourceLineNo">129</span>      //  1). timestamp &gt;= curMinTimestamp, someone already sets the minimumTimestamp. In this case,<a name="line.129"></a>
+<span class="sourceLineNo">130</span>      //      it still needs to check if initialMinTimestamp == INITIAL_MIN_TIMESTAMP to see<a name="line.130"></a>
+<span class="sourceLineNo">131</span>      //      if it needs to update minimumTimestamp. Someone may already set both<a name="line.131"></a>
+<span class="sourceLineNo">132</span>      //      minimumTimestamp/minimumTimestamp to the same value(curMinTimestamp),<a name="line.132"></a>
+<span class="sourceLineNo">133</span>      //      need to check if maximumTimestamp needs to be updated.<a name="line.133"></a>
+<span class="sourceLineNo">134</span>      //  2). timestamp &lt; curMinTimestamp, it sets the minimumTimestamp successfully.<a name="line.134"></a>
+<span class="sourceLineNo">135</span>      //      In this case,it still needs to check if initialMinTimestamp == INITIAL_MIN_TIMESTAMP<a name="line.135"></a>
+<span class="sourceLineNo">136</span>      //      to see if it needs to set maximumTimestamp.<a name="line.136"></a>
+<span class="sourceLineNo">137</span>      if (initialMinTimestamp != INITIAL_MIN_TIMESTAMP) {<a name="line.137"></a>
+<span class="sourceLineNo">138</span>        // Someone already sets minimumTimestamp and timestamp is less than minimumTimestamp.<a name="line.138"></a>
+<span class="sourceLineNo">139</span>        // In this case, no need to set maximumTimestamp as it will be set to at least<a name="line.139"></a>
+<span class="sourceLineNo">140</span>        // initialMinTimestamp.<a name="line.140"></a>
+<span class="sourceLineNo">141</span>        return;<a name="line.141"></a>
+<span class="sourceLineNo">142</span>      }<a name="line.142"></a>
+<span class="sourceLineNo">143</span>    }<a name="line.143"></a>
+<span class="sourceLineNo">144</span><a name="line.144"></a>
+<span class="sourceLineNo">145</span>    long curMaxTimestamp = getMax();<a name="line.145"></a>
+<span class="sourceLineNo">146</span><a name="line.146"></a>
+<span class="sourceLineNo">147</span>    if (timestamp &gt; curMaxTimestamp) {<a name="line.147"></a>
+<span class="sourceLineNo">148</span>      while (timestamp &gt; curMaxTimestamp) {<a name="line.148"></a>
+<span class="sourceLineNo">149</span>        if (!compareAndSetMax(curMaxTimestamp, timestamp)) {<a name="line.149"></a>
+<span class="sourceLineNo">150</span>          curMaxTimestamp = getMax();<a name="line.150"></a>
+<span class="sourceLineNo">151</span>        } else {<a name="line.151"></a>
+<span class="sourceLineNo">152</span>          // successfully set maximumTimestamp, break<a name="line.152"></a>
+<span class="sourceLineNo">153</span>          break;<a name="line.153"></a>
+<span class="sourceLineNo">154</span>        }<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><a name="line.158"></a>
+<span class="sourceLineNo">159</span>  /**<a name="line.159"></a>
+<span class="sourceLineNo">160</span>   * Check if the range has ANY overlap with TimeRange<a name="line.160"></a>
+<span class="sourceLineNo">161</span>   * @param tr TimeRange, it expects [minStamp, maxStamp)<a name="line.161"></a>
+<span class="sourceLineNo">162</span>   * @return True if there is overlap, false otherwise<a name="line.162"></a>
+<span class="sourceLineNo">163</span>   */<a name="line.163"></a>
+<span class="sourceLineNo">164</span>  public boolean includesTimeRange(final TimeRange tr) {<a name="line.164"></a>
+<span class="sourceLineNo">165</span>    return (getMin() &lt; tr.getMax() &amp;&amp; getMax() &gt;= tr.getMin());<a name="line.165"></a>
+<span class="sourceLineNo">166</span>  }<a name="line.166"></a>
+<span class="sourceLineNo">167</span><a name="line.167"></a>
+<span class="sourceLineNo">168</span>  /**<a name="line.168"></a>
+<span class="sourceLineNo">169</span>   * @return the minimumTimestamp<a name="line.169"></a>
+<span class="sourceLineNo">170</span>   */<a name="line.170"></a>
+<span class="sourceLineNo">171</span>  public abstract long getMin();<a name="line.171"></a>
+<span class="sourceLineNo">172</span><a name="line.172"></a>
+<span class="sourceLineNo">173</span>  /**<a name="line.173"></a>
+<span class="sourceLineNo">174</span>   * @return the maximumTimestamp<a name="line.174"></a>
+<span class="sourceLineNo">175</span>   */<a name="line.175"></a>
+<span class="sourceLineNo">176</span>  public abstract long getMax();<a name="line.176"></a>
+<span class="sourceLineNo">177</span><a name="line.177"></a>
+<span class="sourceLineNo">178</span>  public void write(final DataOutput out) throws IOException {<a name="line.178"></a>
+<span class="sourceLineNo">179</span>    out.writeLong(getMin());<a name="line.179"></a>
+<span class="sourceLineNo">180</span>    out.writeLong(getMax());<a name="line.180"></a>
+<span class="sourceLineNo">181</span>  }<a name="line.181"></a>
+<span class="sourceLineNo">182</span><a name="line.182"></a>
+<span class="sourceLineNo">183</span>  public void readFields(final DataInput in) throws IOException {<a name="line.183"></a>
+<span class="sourceLineNo">184</span>    setMin(in.readLong());<a name="line.184"></a>
+<span class="sourceLineNo">185</span>    setMax(in.readLong());<a name="line.185"></a>
+<span class="sourceLineNo">186</span>  }<a name="line.186"></a>
+<span class="sourceLineNo">187</span><a name="line.187"></a>
+<span class="sourceLineNo">188</span>  @Override<a name="line.188"></a>
+<span class="sourceLineNo">189</span>  public String toString() {<a name="line.189"></a>
+<span class="sourceLineNo">190</span>    return "[" + getMin() + "," + getMax() + "]";<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>   * @return An instance of NonSyncTimeRangeTracker filled w/ the content of serialized<a name="line.194"></a>
+<span class="sourceLineNo">195</span>   * NonSyncTimeRangeTracker in &lt;code&gt;timeRangeTrackerBytes&lt;/code&gt;.<a name="line.195"></a>
+<span class="sourceLineNo">196</span>   * @throws IOException<a name="line.196"></a>
+<span class="sourceLineNo">197</span>   */<a name="line.197"></a>
+<span class="sourceLineNo">198</span>  public static TimeRangeTracker getTimeRangeTracker(final byte [] timeRangeTrackerBytes)<a name="line.198"></a>
+<span class="sourceLineNo">199</span>  throws IOException {<a name="line.199"></a>
+<span class="sourceLineNo">200</span>    if (timeRangeTrackerBytes == null) return null;<a name="line.200"></a>
+<span class="sourceLineNo">201</span>    TimeRangeTracker trt = TimeRangeTracker.create(Type.NON_SYNC);<a name="line.201"></a>
+<span class="sourceLineNo">202</span>    Writables.copyWritable(timeRangeTrackerBytes, trt);<a name="line.202"></a>
+<span class="sourceLineNo">203</span>    return trt;<a name="line.203"></a>
+<span class="sourceLineNo">204</span>  }<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>   * @return An instance of a TimeRange made from the serialized TimeRangeTracker passed in<a name="line.207"></a>
+<span class="sourceLineNo">208</span>   * &lt;code&gt;timeRangeTrackerBytes&lt;/code&gt;.<a name="line.208"></a>
+<span class="sourceLineNo">209</span>   * @throws IOException<a name="line.209"></a>
+<span class="sourceLineNo">210</span>   */<a name="line.210"></a>
+<span class="sourceLineNo">211</span>  static TimeRange getTimeRange(final byte [] timeRangeTrackerBytes) throws IOException {<a name="line.211"></a>
+<span class="sourceLineNo">212</span>    TimeRangeTracker trt = getTimeRangeTracker(timeRangeTrackerBytes);<a name="line.212"></a>
+<span class="sourceLineNo">213</span>    return trt == null? null: trt.toTimeRange();<a name="line.213"></a>
+<span class="sourceLineNo">214</span>  }<a name="line.214"></a>
+<span class="sourceLineNo">215</span><a name="line.215"></a>
+<span class="sourceLineNo">216</span>  /**<a name="line.216"></a>
+<span class="sourceLineNo">217</span>   * @return Make a TimeRange from current state of &lt;code&gt;this&lt;/code&gt;.<a name="line.217"></a>
+<span class="sourceLineNo">218</span>   */<a name="line.218"></a>
+<span class="sourceLineNo">219</span>  TimeRange toTimeRange() {<a name="line.219"></a>
+<span class="sourceLineNo">220</span>    long min = getMin();<a name="line.220"></a>
+<span class="sourceLineNo">221</span>    long max = getMax();<a name="line.221"></a>
+<span class="sourceLineNo">222</span>    // Initial TimeRangeTracker timestamps are the opposite of what you want for a TimeRange. Fix!<a name="line.222"></a>
+<span class="sourceLineNo">223</span>    if (min == INITIAL_MIN_TIMESTAMP) {<a name="line.223"></a>
+<span class="sourceLineNo">224</span>      min = TimeRange.INITIAL_MIN_TIMESTAMP;<a name="line.224"></a>
+<span class="sourceLineNo">225</span>    }<a name="line.225"></a>
+<span class="sourceLineNo">226</span>    if (max == INITIAL_MAX_TIMESTAMP) {<a name="line.226"></a>
+<span class="sourceLineNo">227</span>      max = TimeRange.INITIAL_MAX_TIMESTAMP;<a name="line.227"></a>
+<span class="sourceLineNo">228</span>    }<a name="line.228"></a>
+<span class="sourceLineNo">229</span>    return new TimeRange(min, max);<a name="line.229"></a>
+<span class="sourceLineNo">230</span>  }<a name="line.230"></a>
+<span class="sourceLineNo">231</span><a name="line.231"></a>
+<span class="sourceLineNo">232</span>  private static class NonSyncTimeRangeTracker extends TimeRangeTracker {<a name="line.232"></a>
+<span class="sourceLineNo">233</span>    private long minimumTimestamp = INITIAL_MIN_TIMESTAMP;<a name="line.233"></a>
+<span class="sourceLineNo">234</span>    private long maximumTimestamp = INITIAL_MAX_TIMESTAMP;<a name="line.234"></a>
+<span class="sourceLineNo">235</span><a name="line.235"></a>
+<span class="sourceLineNo">236</span>    NonSyncTimeRangeTracker() {<a name="line.236"></a>
+<span class="sourceLineNo">237</span>    }<a name="line.237"></a>
+<span class="sourceLineNo">238</span><a name="line.238"></a>
+<span class="sourceLineNo">239</span>    NonSyncTimeRangeTracker(final TimeRangeTracker trt) {<a name="line.239"></a>
+<span class="sourceLineNo">240</span>      this.minimumTimestamp = trt.getMin();<a name="line.240"></a>
+<span class="sourceLineNo">241</span>      this.maximumTimestamp = trt.getMax();<a name="line.241"></a>
+<span class="sourceLineNo">242</span>    }<a name="line.242"></a>
+<span class="sourceLineNo">243</span><a name="line.243"></a>
+<span class="sourceLineNo">244</span>    NonSyncTimeRangeTracker(long minimumTimestamp, long maximumTimestamp) {<a name="line.244"></a>
+<span class="sourceLineNo">245</span>      this.minimumTimestamp = minimumTimestamp;<a name="line.245"></a>
+<span class="sourceLineNo">246</span>      this.maximumTimestamp = maximumTimestamp;<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>    @Override<a name="line.249"></a>
+<span class="sourceLineNo">250</span>    protected void setMax(long ts) {<a name="line.250"></a>
+<span class="sourceLineNo">251</span>      maximumTimestamp = ts;<a name="line.251"></a>
+<span class="sourceLineNo">252</span>    }<a name="line.252"></a>
+<span class="sourceLineNo">253</span><a name="line.253"></a>
+<span class="sourceLineNo">254</span>    @Override<a name="line.254"></a>
+<span class="sourceLineNo">255</span>    protected void setMin(long ts) {<a name="line.255"></a>
+<span class="sourceLineNo">256</span>      minimumTimestamp = ts;<a name="line.256"></a>
+<span class="sourceLineNo">257</span>    }<a name="line.257"></a>
+<span class="sourceLineNo">258</span><a name="line.258"></a>
+<span class="sourceLineNo">259</span>    @Override<a name="line.259"></a>
+<span class="sourceLineNo">260</span>    protected boolean compareAndSetMin(long expect, long update) {<a name="line.260"></a>
+<span class="sourceLineNo">261</span>      if (minimumTimestamp != expect) {<a name="line.261"></a>
+<span class="sourceLineNo">262</span>        return false;<a name="line.262"></a>
+<span class="sourceLineNo">263</span>      }<a name="line.263"></a>
+<span class="sourceLineNo">264</span>      minimumTimestamp = update;<a name="line.264"></a>
+<span class="sourceLineNo">265</span>      return true;<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>    @Override<a name="line.268"></a>
+<span class="sourceLineNo">269</span>    protected boolean compareAndSetMax(long expect, long update) {<a name="line.269"></a>
+<span class="sourceLineNo">270</span>      if (maximumTimestamp != expect) {<a name="line.270"></a>
+<span class="sourceLineNo">271</span>        return false;<a name="line.271"></a>
+<span class="sourceLineNo">272</span>      }<a name="line.272"></a>
+<span class="sourceLineNo">273</span>      maximumTimestamp = update;<a name="line.273"></a>
+<span class="sourceLineNo">274</span>      return true;<a name="line.274"></a>
+<span class="sourceLineNo">275</span>    }<a name="line.275"></a>
+<span class="sourceLineNo">276</span><a name="line.276"></a>
+<span class="sourceLineNo">277</span>    @Override<a name="line.277"></a>
+<span class="sourceLineNo">278</span>    public long getMin() {<a name="line.278"></a>
+<span class="sourceLineNo">279</span>      return minimumTimestamp;<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>    @Override<a name="line.282"></a>
+<span class="sourceLineNo">283</span>    public long getMax() {<a name="line.283"></a>
+<span class="sourceLineNo">284</span>      return maximumTimestamp;<a name="line.284"></a>
+<span class="sourceLineNo">285</span>    }<a name="line.285"></a>
+<span class="sourceLineNo">286</span>  }<a name="line.286"></a>
+<span class="sourceLineNo">287</span><a name="line.287"></a>
+<span class="sourceLineNo">288</span>  @VisibleForTesting<a name="line.288"></a>
+<span class="sourceLineNo">289</span>  //In order to estimate the heap size, this inner class need to be accessible to TestHeapSize.<a name="line.289"></a>
+<span class="sourceLineNo">290</span>  public static class SyncTimeRangeTracker extends TimeRangeTracker {<a name="line.290"></a>
+<span class="sourceLineNo">291</span>    private final AtomicLong minimumTimestamp = new AtomicLong(INITIAL_MIN_TIMESTAMP);<a name="line.291"></a>
+<span class="sourceLineNo">292</span>    private final AtomicLong maximumTimestamp = new AtomicLong(INITIAL_MAX_TIMESTAMP);<a name="line.292"></a>
+<span class="sourceLineNo">293</span><a name="line.293"></a>
+<span class="sourceLineNo">294</span>    private SyncTimeRangeTracker() {<a name="line.294"></a>
+<span class="sourceLineNo">295</span>    }<a name="line.295"></a>
+<span class="sourceLineNo">296</span><a name="line.296"></a>
+<span class="sourceLineNo">297</span>    SyncTimeRangeTracker(final TimeRangeTracker trt) {<a name="line.297"></a>
+<span class="sourceLineNo">298</span>      this.minimumTimestamp.set(trt.getMin());<a name="line.298"></a>
+<span class="sourceLineNo">299</span>      this.maximumTimestamp.set(trt.getMax());<a name="line.299"></a>
+<span class="sourceLineNo">300</span>    }<a name="line.300"></a>
+<span class="sourceLineNo">301</span><a name="line.301"></a>
+<span class="sourceLineNo">302</span>    SyncTimeRangeTracker(long minimumTimestamp, long maximumTimestamp) {<a name="line.302"></a>
+<span class="sourceLineNo">303</span>      this.minimumTimestamp.set(minimumTimestamp);<a name="line.303"></a>
+<span class="sourceLineNo">304</span>      this.maximumTimestamp.set(maximumTimestamp);<a name="line.304"></a>
+<span class="sourceLineNo">305</span>    }<a name="line.305"></a>
+<span class="sourceLineNo">306</span><a name="line.306"></a>
+<span class="sourceLineNo">307</span>    @Override<a name="line.307"></a>
+<span class="sourceLineNo">308</span>    protected void setMax(long ts) {<a name="line.308"></a>
+<span class="sourceLineNo">309</span>      maximumTimestamp.set(ts);<a name="line.309"></a>
+<span class="sourceLineNo">310</span>    }<a name="line.310"></a>
+<span class="sourceLineNo">311</span><a name="line.311"></a>
+<span class="sourceLineNo">312</span>    @Override<a name="line.312"></a>
+<span class="sourceLineNo">313</span>    protected void setMin(long ts) {<a name="line.313"></a>
+<span class="sourceLineNo">314</span>      minimumTimestamp.set(ts);<a name="line.314"></a>
+<span class="sourceLineNo">315</span>    }<a name="line.315"></a>
+<span class="sourceLineNo">316</span><a name="line.316"></a>
+<span class="sourceLineNo">317</span>    @Override<a name="line.317"></a>
+<span class="sourceLineNo">318</span>    protected boolean compareAndSetMin(long expect, long update) {<a name="line.318"></a>
+<span class="sourceLineNo">319</span>      return minimumTimestamp.compareAndSet(expect, update);<a name="line.319"></a>
+<span class="sourceLineNo">320</span>    }<a name="line.320"></a>
+<span class="sourceLineNo">321</span><a name="line.321"></a>
+<span class="sourceLineNo">322</span>    @Override<a name="line.322"></a>
+<span class="sourceLineNo">323</span>    protected boolean compareAndSetMax(long expect, long update) {<a name="line.323"></a>
+<span class="sourceLineNo">324</span>      return maximumTimestamp.compareAndSet(expect, update);<a name="line.324"></a>
+<span class="sourceLineNo">325</span>    }<a name="line.325"></a>
+<span class="sourceLineNo">326</span><a name="line.326"></a>
+<span class="sourceLineNo">327</span>    @Override<a name="line.327"></a>
+<span class="sourceLineNo">328</span>    public long getMin() {<a name="line.328"></a>
+<span class="sourceLineNo">329</span>      return minimumTimestamp.get();<a name="line.329"></a>
+<span class="sourceLineNo">330</span>    }<a name="line.330"></a>
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+<span class="sourceLineNo">332</span>    @Override<a name="line.332"></a>
+<span class="sourceLineNo">333</span>    public long getMax() {<a name="line.333"></a>
+<span class="sourceLineNo">334</span>      return maximumTimestamp.get();<a name="line.334"></a>
+<span class="sourceLineNo">335</span>    }<a name="line.335"></a>
+<span class="sourceLineNo">336</span>  }<a name="line.336"></a>
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+</div>
+</body>
+</html>

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f7d654db/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/TimeRangeTracker.SyncTimeRangeTracker.html
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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html lang="en">
+<head>
+<title>Source code</title>
+<link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style">
+</head>
+<body>
+<div class="sourceContainer">
+<pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a>
+<span class="sourceLineNo">002</span> *<a name="line.2"></a>
+<span class="sourceLineNo">003</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.3"></a>
+<span class="sourceLineNo">004</span> * or more contributor license agreements.  See the NOTICE file<a name="line.4"></a>
+<span class="sourceLineNo">005</span> * distributed with this work for additional information<a name="line.5"></a>
+<span class="sourceLineNo">006</span> * regarding copyright ownership.  The ASF licenses this file<a name="line.6"></a>
+<span class="sourceLineNo">007</span> * to you under the Apache License, Version 2.0 (the<a name="line.7"></a>
+<span class="sourceLineNo">008</span> * "License"); you may not use this file except in compliance<a name="line.8"></a>
+<span class="sourceLineNo">009</span> * with the License.  You may obtain a copy of the License at<a name="line.9"></a>
+<span class="sourceLineNo">010</span> *<a name="line.10"></a>
+<span class="sourceLineNo">011</span> *     http://www.apache.org/licenses/LICENSE-2.0<a name="line.11"></a>
+<span class="sourceLineNo">012</span> *<a name="line.12"></a>
+<span class="sourceLineNo">013</span> * Unless required by applicable law or agreed to in writing, software<a name="line.13"></a>
+<span class="sourceLineNo">014</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.14"></a>
+<span class="sourceLineNo">015</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.15"></a>
+<span class="sourceLineNo">016</span> * See the License for the specific language governing permissions and<a name="line.16"></a>
+<span class="sourceLineNo">017</span> * limitations under the License.<a name="line.17"></a>
+<span class="sourceLineNo">018</span> */<a name="line.18"></a>
+<span class="sourceLineNo">019</span>package org.apache.hadoop.hbase.regionserver;<a name="line.19"></a>
+<span class="sourceLineNo">020</span><a name="line.20"></a>
+<span class="sourceLineNo">021</span>import java.io.DataInput;<a name="line.21"></a>
+<span class="sourceLineNo">022</span>import java.io.DataOutput;<a name="line.22"></a>
+<span class="sourceLineNo">023</span>import java.io.IOException;<a name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.util.concurrent.atomic.AtomicLong;<a name="line.24"></a>
+<span class="sourceLineNo">025</span><a name="line.25"></a>
+<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.Cell;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.CellUtil;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.io.TimeRange;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.util.Writables;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import org.apache.hadoop.io.Writable;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.31"></a>
+<span class="sourceLineNo">032</span><a name="line.32"></a>
+<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.shaded.com.google.common.annotations.VisibleForTesting;<a name="line.33"></a>
+<span class="sourceLineNo">034</span><a name="line.34"></a>
+<span class="sourceLineNo">035</span>/**<a name="line.35"></a>
+<span class="sourceLineNo">036</span> * Stores minimum and maximum timestamp values, it is [minimumTimestamp, maximumTimestamp] in<a name="line.36"></a>
+<span class="sourceLineNo">037</span> * interval notation.<a name="line.37"></a>
+<span class="sourceLineNo">038</span> * Use this class at write-time ONLY. Too much synchronization to use at read time<a name="line.38"></a>
+<span class="sourceLineNo">039</span> * Use {@link TimeRange} at read time instead of this. See toTimeRange() to make TimeRange to use.<a name="line.39"></a>
+<span class="sourceLineNo">040</span> * MemStores use this class to track minimum and maximum timestamps. The TimeRangeTracker made by<a name="line.40"></a>
+<span class="sourceLineNo">041</span> * the MemStore is passed to the StoreFile for it to write out as part a flush in the the file<a name="line.41"></a>
+<span class="sourceLineNo">042</span> * metadata. If no memstore involved -- i.e. a compaction -- then the StoreFile will calculate its<a name="line.42"></a>
+<span class="sourceLineNo">043</span> * own TimeRangeTracker as it appends. The StoreFile serialized TimeRangeTracker is used<a name="line.43"></a>
+<span class="sourceLineNo">044</span> * at read time via an instance of {@link TimeRange} to test if Cells fit the StoreFile TimeRange.<a name="line.44"></a>
+<span class="sourceLineNo">045</span> */<a name="line.45"></a>
+<span class="sourceLineNo">046</span>@InterfaceAudience.Private<a name="line.46"></a>
+<span class="sourceLineNo">047</span>public abstract class TimeRangeTracker implements Writable {<a name="line.47"></a>
+<span class="sourceLineNo">048</span><a name="line.48"></a>
+<span class="sourceLineNo">049</span>  public enum Type {<a name="line.49"></a>
+<span class="sourceLineNo">050</span>    // thread-unsafe<a name="line.50"></a>
+<span class="sourceLineNo">051</span>    NON_SYNC,<a name="line.51"></a>
+<span class="sourceLineNo">052</span>    // thread-safe<a name="line.52"></a>
+<span class="sourceLineNo">053</span>    SYNC<a name="line.53"></a>
+<span class="sourceLineNo">054</span>  }<a name="line.54"></a>
+<span class="sourceLineNo">055</span><a name="line.55"></a>
+<span class="sourceLineNo">056</span>  static final long INITIAL_MIN_TIMESTAMP = Long.MAX_VALUE;<a name="line.56"></a>
+<span class="sourceLineNo">057</span>  static final long INITIAL_MAX_TIMESTAMP = -1L;<a name="line.57"></a>
+<span class="sourceLineNo">058</span><a name="line.58"></a>
+<span class="sourceLineNo">059</span>  public static TimeRangeTracker create(Type type) {<a name="line.59"></a>
+<span class="sourceLineNo">060</span>    switch (type) {<a name="line.60"></a>
+<span class="sourceLineNo">061</span>      case NON_SYNC:<a name="line.61"></a>
+<span class="sourceLineNo">062</span>        return new NonSyncTimeRangeTracker();<a name="line.62"></a>
+<span class="sourceLineNo">063</span>      case SYNC:<a name="line.63"></a>
+<span class="sourceLineNo">064</span>        return new SyncTimeRangeTracker();<a name="line.64"></a>
+<span class="sourceLineNo">065</span>      default:<a name="line.65"></a>
+<span class="sourceLineNo">066</span>        throw new UnsupportedOperationException("The type:" + type + " is unsupported");<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><a name="line.69"></a>
+<span class="sourceLineNo">070</span>  public static TimeRangeTracker create(Type type, TimeRangeTracker trt) {<a name="line.70"></a>
+<span class="sourceLineNo">071</span>    switch (type) {<a name="line.71"></a>
+<span class="sourceLineNo">072</span>      case NON_SYNC:<a name="line.72"></a>
+<span class="sourceLineNo">073</span>        return new NonSyncTimeRangeTracker(trt);<a name="line.73"></a>
+<span class="sourceLineNo">074</span>      case SYNC:<a name="line.74"></a>
+<span class="sourceLineNo">075</span>        return new SyncTimeRangeTracker(trt);<a name="line.75"></a>
+<span class="sourceLineNo">076</span>      default:<a name="line.76"></a>
+<span class="sourceLineNo">077</span>        throw new UnsupportedOperationException("The type:" + type + " is unsupported");<a name="line.77"></a>
+<span class="sourceLineNo">078</span>    }<a name="line.78"></a>
+<span class="sourceLineNo">079</span>  }<a name="line.79"></a>
+<span class="sourceLineNo">080</span><a name="line.80"></a>
+<span class="sourceLineNo">081</span>  public static TimeRangeTracker create(Type type, long minimumTimestamp, long maximumTimestamp) {<a name="line.81"></a>
+<span class="sourceLineNo">082</span>    switch (type) {<a name="line.82"></a>
+<span class="sourceLineNo">083</span>      case NON_SYNC:<a name="line.83"></a>
+<span class="sourceLineNo">084</span>        return new NonSyncTimeRangeTracker(minimumTimestamp, maximumTimestamp);<a name="line.84"></a>
+<span class="sourceLineNo">085</span>      case SYNC:<a name="line.85"></a>
+<span class="sourceLineNo">086</span>        return new SyncTimeRangeTracker(minimumTimestamp, maximumTimestamp);<a name="line.86"></a>
+<span class="sourceLineNo">087</span>      default:<a name="line.87"></a>
+<span class="sourceLineNo">088</span>        throw new UnsupportedOperationException("The type:" + type + " is unsupported");<a name="line.88"></a>
+<span class="sourceLineNo">089</span>    }<a name="line.89"></a>
+<span class="sourceLineNo">090</span>  }<a name="line.90"></a>
+<span class="sourceLineNo">091</span><a name="line.91"></a>
+<span class="sourceLineNo">092</span>  protected abstract void setMax(long ts);<a name="line.92"></a>
+<span class="sourceLineNo">093</span>  protected abstract void setMin(long ts);<a name="line.93"></a>
+<span class="sourceLineNo">094</span>  protected abstract boolean compareAndSetMin(long expect, long update);<a name="line.94"></a>
+<span class="sourceLineNo">095</span>  protected abstract boolean compareAndSetMax(long expect, long update);<a name="line.95"></a>
+<span class="sourceLineNo">096</span>  /**<a name="line.96"></a>
+<span class="sourceLineNo">097</span>   * Update the current TimestampRange to include the timestamp from &lt;code&gt;cell&lt;/code&gt;.<a name="line.97"></a>
+<span class="sourceLineNo">098</span>   * If the Key is of type DeleteColumn or DeleteFamily, it includes the<a name="line.98"></a>
+<span class="sourceLineNo">099</span>   * entire time range from 0 to timestamp of the key.<a name="line.99"></a>
+<span class="sourceLineNo">100</span>   * @param cell the Cell to include<a name="line.100"></a>
+<span class="sourceLineNo">101</span>   */<a name="line.101"></a>
+<span class="sourceLineNo">102</span>  public void includeTimestamp(final Cell cell) {<a name="line.102"></a>
+<span class="sourceLineNo">103</span>    includeTimestamp(cell.getTimestamp());<a name="line.103"></a>
+<span class="sourceLineNo">104</span>    if (CellUtil.isDeleteColumnOrFamily(cell)) {<a name="line.104"></a>
+<span class="sourceLineNo">105</span>      includeTimestamp(0);<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><a name="line.108"></a>
+<span class="sourceLineNo">109</span>  /**<a name="line.109"></a>
+<span class="sourceLineNo">110</span>   * If required, update the current TimestampRange to include timestamp<a name="line.110"></a>
+<span class="sourceLineNo">111</span>   * @param timestamp the timestamp value to include<a name="line.111"></a>
+<span class="sourceLineNo">112</span>   */<a name="line.112"></a>
+<span class="sourceLineNo">113</span>  @edu.umd.cs.findbugs.annotations.SuppressWarnings(value="MT_CORRECTNESS",<a name="line.113"></a>
+<span class="sourceLineNo">114</span>      justification="Intentional")<a name="line.114"></a>
+<span class="sourceLineNo">115</span>  void includeTimestamp(final long timestamp) {<a name="line.115"></a>
+<span class="sourceLineNo">116</span>    long initialMinTimestamp = getMin();<a name="line.116"></a>
+<span class="sourceLineNo">117</span>    if (timestamp &lt; initialMinTimestamp) {<a name="line.117"></a>
+<span class="sourceLineNo">118</span>      long curMinTimestamp = initialMinTimestamp;<a name="line.118"></a>
+<span class="sourceLineNo">119</span>      while (timestamp &lt; curMinTimestamp) {<a name="line.119"></a>
+<span class="sourceLineNo">120</span>        if (!compareAndSetMin(curMinTimestamp, timestamp)) {<a name="line.120"></a>
+<span class="sourceLineNo">121</span>          curMinTimestamp = getMin();<a name="line.121"></a>
+<span class="sourceLineNo">122</span>        } else {<a name="line.122"></a>
+<span class="sourceLineNo">123</span>          // successfully set minimumTimestamp, break.<a name="line.123"></a>
+<span class="sourceLineNo">124</span>          break;<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><a name="line.127"></a>
+<span class="sourceLineNo">128</span>      // When it reaches here, there are two possibilities:<a name="line.128"></a>
+<span class="sourceLineNo">129</span>      //  1). timestamp &gt;= curMinTimestamp, someone already sets the minimumTimestamp. In this case,<a name="line.129"></a>
+<span class="sourceLineNo">130</span>      //      it still needs to check if initialMinTimestamp == INITIAL_MIN_TIMESTAMP to see<a name="line.130"></a>
+<span class="sourceLineNo">131</span>      //      if it needs to update minimumTimestamp. Someone may already set both<a name="line.131"></a>
+<span class="sourceLineNo">132</span>      //      minimumTimestamp/minimumTimestamp to the same value(curMinTimestamp),<a name="line.132"></a>
+<span class="sourceLineNo">133</span>      //      need to check if maximumTimestamp needs to be updated.<a name="line.133"></a>
+<span class="sourceLineNo">134</span>      //  2). timestamp &lt; curMinTimestamp, it sets the minimumTimestamp successfully.<a name="line.134"></a>
+<span class="sourceLineNo">135</span>      //      In this case,it still needs to check if initialMinTimestamp == INITIAL_MIN_TIMESTAMP<a name="line.135"></a>
+<span class="sourceLineNo">136</span>      //      to see if it needs to set maximumTimestamp.<a name="line.136"></a>
+<span class="sourceLineNo">137</span>      if (initialMinTimestamp != INITIAL_MIN_TIMESTAMP) {<a name="line.137"></a>
+<span class="sourceLineNo">138</span>        // Someone already sets minimumTimestamp and timestamp is less than minimumTimestamp.<a name="line.138"></a>
+<span class="sourceLineNo">139</span>        // In this case, no need to set maximumTimestamp as it will be set to at least<a name="line.139"></a>
+<span class="sourceLineNo">140</span>        // initialMinTimestamp.<a name="line.140"></a>
+<span class="sourceLineNo">141</span>        return;<a name="line.141"></a>
+<span class="sourceLineNo">142</span>      }<a name="line.142"></a>
+<span class="sourceLineNo">143</span>    }<a name="line.143"></a>
+<span class="sourceLineNo">144</span><a name="line.144"></a>
+<span class="sourceLineNo">145</span>    long curMaxTimestamp = getMax();<a name="line.145"></a>
+<span class="sourceLineNo">146</span><a name="line.146"></a>
+<span class="sourceLineNo">147</span>    if (timestamp &gt; curMaxTimestamp) {<a name="line.147"></a>
+<span class="sourceLineNo">148</span>      while (timestamp &gt; curMaxTimestamp) {<a name="line.148"></a>
+<span class="sourceLineNo">149</span>        if (!compareAndSetMax(curMaxTimestamp, timestamp)) {<a name="line.149"></a>
+<span class="sourceLineNo">150</span>          curMaxTimestamp = getMax();<a name="line.150"></a>
+<span class="sourceLineNo">151</span>        } else {<a name="line.151"></a>
+<span class="sourceLineNo">152</span>          // successfully set maximumTimestamp, break<a name="line.152"></a>
+<span class="sourceLineNo">153</span>          break;<a name="line.153"></a>
+<span class="sourceLineNo">154</span>        }<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><a name="line.158"></a>
+<span class="sourceLineNo">159</span>  /**<a name="line.159"></a>
+<span class="sourceLineNo">160</span>   * Check if the range has ANY overlap with TimeRange<a name="line.160"></a>
+<span class="sourceLineNo">161</span>   * @param tr TimeRange, it expects [minStamp, maxStamp)<a name="line.161"></a>
+<span class="sourceLineNo">162</span>   * @return True if there is overlap, false otherwise<a name="line.162"></a>
+<span class="sourceLineNo">163</span>   */<a name="line.163"></a>
+<span class="sourceLineNo">164</span>  public boolean includesTimeRange(final TimeRange tr) {<a name="line.164"></a>
+<span class="sourceLineNo">165</span>    return (getMin() &lt; tr.getMax() &amp;&amp; getMax() &gt;= tr.getMin());<a name="line.165"></a>
+<span class="sourceLineNo">166</span>  }<a name="line.166"></a>
+<span class="sourceLineNo">167</span><a name="line.167"></a>
+<span class="sourceLineNo">168</span>  /**<a name="line.168"></a>
+<span class="sourceLineNo">169</span>   * @return the minimumTimestamp<a name="line.169"></a>
+<span class="sourceLineNo">170</span>   */<a name="line.170"></a>
+<span class="sourceLineNo">171</span>  public abstract long getMin();<a name="line.171"></a>
+<span class="sourceLineNo">172</span><a name="line.172"></a>
+<span class="sourceLineNo">173</span>  /**<a name="line.173"></a>
+<span class="sourceLineNo">174</span>   * @return the maximumTimestamp<a name="line.174"></a>
+<span class="sourceLineNo">175</span>   */<a name="line.175"></a>
+<span class="sourceLineNo">176</span>  public abstract long getMax();<a name="line.176"></a>
+<span class="sourceLineNo">177</span><a name="line.177"></a>
+<span class="sourceLineNo">178</span>  public void write(final DataOutput out) throws IOException {<a name="line.178"></a>
+<span class="sourceLineNo">179</span>    out.writeLong(getMin());<a name="line.179"></a>
+<span class="sourceLineNo">180</span>    out.writeLong(getMax());<a name="line.180"></a>
+<span class="sourceLineNo">181</span>  }<a name="line.181"></a>
+<span class="sourceLineNo">182</span><a name="line.182"></a>
+<span class="sourceLineNo">183</span>  public void readFields(final DataInput in) throws IOException {<a name="line.183"></a>
+<span class="sourceLineNo">184</span>    setMin(in.readLong());<a name="line.184"></a>
+<span class="sourceLineNo">185</span>    setMax(in.readLong());<a name="line.185"></a>
+<span class="sourceLineNo">186</span>  }<a name="line.186"></a>
+<span class="sourceLineNo">187</span><a name="line.187"></a>
+<span class="sourceLineNo">188</span>  @Override<a name="line.188"></a>
+<span class="sourceLineNo">189</span>  public String toString() {<a name="line.189"></a>
+<span class="sourceLineNo">190</span>    return "[" + getMin() + "," + getMax() + "]";<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>   * @return An instance of NonSyncTimeRangeTracker filled w/ the content of serialized<a name="line.194"></a>
+<span class="sourceLineNo">195</span>   * NonSyncTimeRangeTracker in &lt;code&gt;timeRangeTrackerBytes&lt;/code&gt;.<a name="line.195"></a>
+<span class="sourceLineNo">196</span>   * @throws IOException<a name="line.196"></a>
+<span class="sourceLineNo">197</span>   */<a name="line.197"></a>
+<span class="sourceLineNo">198</span>  public static TimeRangeTracker getTimeRangeTracker(final byte [] timeRangeTrackerBytes)<a name="line.198"></a>
+<span class="sourceLineNo">199</span>  throws IOException {<a name="line.199"></a>
+<span class="sourceLineNo">200</span>    if (timeRangeTrackerBytes == null) return null;<a name="line.200"></a>
+<span class="sourceLineNo">201</span>    TimeRangeTracker trt = TimeRangeTracker.create(Type.NON_SYNC);<a name="line.201"></a>
+<span class="sourceLineNo">202</span>    Writables.copyWritable(timeRangeTrackerBytes, trt);<a name="line.202"></a>
+<span class="sourceLineNo">203</span>    return trt;<a name="line.203"></a>
+<span class="sourceLineNo">204</span>  }<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>   * @return An instance of a TimeRange made from the serialized TimeRangeTracker passed in<a name="line.207"></a>
+<span class="sourceLineNo">208</span>   * &lt;code&gt;timeRangeTrackerBytes&lt;/code&gt;.<a name="line.208"></a>
+<span class="sourceLineNo">209</span>   * @throws IOException<a name="line.209"></a>
+<span class="sourceLineNo">210</span>   */<a name="line.210"></a>
+<span class="sourceLineNo">211</span>  static TimeRange getTimeRange(final byte [] timeRangeTrackerBytes) throws IOException {<a name="line.211"></a>
+<span class="sourceLineNo">212</span>    TimeRangeTracker trt = getTimeRangeTracker(timeRangeTrackerBytes);<a name="line.212"></a>
+<span class="sourceLineNo">213</span>    return trt == null? null: trt.toTimeRange();<a name="line.213"></a>
+<span class="sourceLineNo">214</span>  }<a name="line.214"></a>
+<span class="sourceLineNo">215</span><a name="line.215"></a>
+<span class="sourceLineNo">216</span>  /**<a name="line.216"></a>
+<span class="sourceLineNo">217</span>   * @return Make a TimeRange from current state of &lt;code&gt;this&lt;/code&gt;.<a name="line.217"></a>
+<span class="sourceLineNo">218</span>   */<a name="line.218"></a>
+<span class="sourceLineNo">219</span>  TimeRange toTimeRange() {<a name="line.219"></a>
+<span class="sourceLineNo">220</span>    long min = getMin();<a name="line.220"></a>
+<span class="sourceLineNo">221</span>    long max = getMax();<a name="line.221"></a>
+<span class="sourceLineNo">222</span>    // Initial TimeRangeTracker timestamps are the opposite of what you want for a TimeRange. Fix!<a name="line.222"></a>
+<span class="sourceLineNo">223</span>    if (min == INITIAL_MIN_TIMESTAMP) {<a name="line.223"></a>
+<span class="sourceLineNo">224</span>      min = TimeRange.INITIAL_MIN_TIMESTAMP;<a name="line.224"></a>
+<span class="sourceLineNo">225</span>    }<a name="line.225"></a>
+<span class="sourceLineNo">226</span>    if (max == INITIAL_MAX_TIMESTAMP) {<a name="line.226"></a>
+<span class="sourceLineNo">227</span>      max = TimeRange.INITIAL_MAX_TIMESTAMP;<a name="line.227"></a>
+<span class="sourceLineNo">228</span>    }<a name="line.228"></a>
+<span class="sourceLineNo">229</span>    return new TimeRange(min, max);<a name="line.229"></a>
+<span class="sourceLineNo">230</span>  }<a name="line.230"></a>
+<span class="sourceLineNo">231</span><a name="line.231"></a>
+<span class="sourceLineNo">232</span>  private static class NonSyncTimeRangeTracker extends TimeRangeTracker {<a name="line.232"></a>
+<span class="sourceLineNo">233</span>    private long minimumTimestamp = INITIAL_MIN_TIMESTAMP;<a name="line.233"></a>
+<span class="sourceLineNo">234</span>    private long maximumTimestamp = INITIAL_MAX_TIMESTAMP;<a name="line.234"></a>
+<span class="sourceLineNo">235</span><a name="line.235"></a>
+<span class="sourceLineNo">236</span>    NonSyncTimeRangeTracker() {<a name="line.236"></a>
+<span class="sourceLineNo">237</span>    }<a name="line.237"></a>
+<span class="sourceLineNo">238</span><a name="line.238"></a>
+<span class="sourceLineNo">239</span>    NonSyncTimeRangeTracker(final TimeRangeTracker trt) {<a name="line.239"></a>
+<span class="sourceLineNo">240</span>      this.minimumTimestamp = trt.getMin();<a name="line.240"></a>
+<span class="sourceLineNo">241</span>      this.maximumTimestamp = trt.getMax();<a name="line.241"></a>
+<span class="sourceLineNo">242</span>    }<a name="line.242"></a>
+<span class="sourceLineNo">243</span><a name="line.243"></a>
+<span class="sourceLineNo">244</span>    NonSyncTimeRangeTracker(long minimumTimestamp, long maximumTimestamp) {<a name="line.244"></a>
+<span class="sourceLineNo">245</span>      this.minimumTimestamp = minimumTimestamp;<a name="line.245"></a>
+<span class="sourceLineNo">246</span>      this.maximumTimestamp = maximumTimestamp;<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>    @Override<a name="line.249"></a>
+<span class="sourceLineNo">250</span>    protected void setMax(long ts) {<a name="line.250"></a>
+<span class="sourceLineNo">251</span>      maximumTimestamp = ts;<a name="line.251"></a>
+<span class="sourceLineNo">252</span>    }<a name="line.252"></a>
+<span class="sourceLineNo">253</span><a name="line.253"></a>
+<span class="sourceLineNo">254</span>    @Override<a name="line.254"></a>
+<span class="sourceLineNo">255</span>    protected void setMin(long ts) {<a name="line.255"></a>
+<span class="sourceLineNo">256</span>      minimumTimestamp = ts;<a name="line.256"></a>
+<span class="sourceLineNo">257</span>    }<a name="line.257"></a>
+<span class="sourceLineNo">258</span><a name="line.258"></a>
+<span class="sourceLineNo">259</span>    @Override<a name="line.259"></a>
+<span class="sourceLineNo">260</span>    protected boolean compareAndSetMin(long expect, long update) {<a name="line.260"></a>
+<span class="sourceLineNo">261</span>      if (minimumTimestamp != expect) {<a name="line.261"></a>
+<span class="sourceLineNo">262</span>        return false;<a name="line.262"></a>
+<span class="sourceLineNo">263</span>      }<a name="line.263"></a>
+<span class="sourceLineNo">264</span>      minimumTimestamp = update;<a name="line.264"></a>
+<span class="sourceLineNo">265</span>      return true;<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>    @Override<a name="line.268"></a>
+<span class="sourceLineNo">269</span>    protected boolean compareAndSetMax(long expect, long update) {<a name="line.269"></a>
+<span class="sourceLineNo">270</span>      if (maximumTimestamp != expect) {<a name="line.270"></a>
+<span class="sourceLineNo">271</span>        return false;<a name="line.271"></a>
+<span class="sourceLineNo">272</span>      }<a name="line.272"></a>
+<span class="sourceLineNo">273</span>      maximumTimestamp = update;<a name="line.273"></a>
+<span class="sourceLineNo">274</span>      return true;<a name="line.274"></a>
+<span class="sourceLineNo">275</span>    }<a name="line.275"></a>
+<span class="sourceLineNo">276</span><a name="line.276"></a>
+<span class="sourceLineNo">277</span>    @Override<a name="line.277"></a>
+<span class="sourceLineNo">278</span>    public long getMin() {<a name="line.278"></a>
+<span class="sourceLineNo">279</span>      return minimumTimestamp;<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>    @Override<a name="line.282"></a>
+<span class="sourceLineNo">283</span>    public long getMax() {<a name="line.283"></a>
+<span class="sourceLineNo">284</span>      return maximumTimestamp;<a name="line.284"></a>
+<span class="sourceLineNo">285</span>    }<a name="line.285"></a>
+<span class="sourceLineNo">286</span>  }<a name="line.286"></a>
+<span class="sourceLineNo">287</span><a name="line.287"></a>
+<span class="sourceLineNo">288</span>  @VisibleForTesting<a name="line.288"></a>
+<span class="sourceLineNo">289</span>  //In order to estimate the heap size, this inner class need to be accessible to TestHeapSize.<a name="line.289"></a>
+<span class="sourceLineNo">290</span>  public static class SyncTimeRangeTracker extends TimeRangeTracker {<a name="line.290"></a>
+<span class="sourceLineNo">291</span>    private final AtomicLong minimumTimestamp = new AtomicLong(INITIAL_MIN_TIMESTAMP);<a name="line.291"></a>
+<span class="sourceLineNo">292</span>    private final AtomicLong maximumTimestamp = new AtomicLong(INITIAL_MAX_TIMESTAMP);<a name="line.292"></a>
+<span class="sourceLineNo">293</span><a name="line.293"></a>
+<span class="sourceLineNo">294</span>    private SyncTimeRangeTracker() {<a name="line.294"></a>
+<span class="sourceLineNo">295</span>    }<a name="line.295"></a>
+<span class="sourceLineNo">296</span><a name="line.296"></a>
+<span class="sourceLineNo">297</span>    SyncTimeRangeTracker(final TimeRangeTracker trt) {<a name="line.297"></a>
+<span class="sourceLineNo">298</span>      this.minimumTimestamp.set(trt.getMin());<a name="line.298"></a>
+<span class="sourceLineNo">299</span>      this.maximumTimestamp.set(trt.getMax());<a name="line.299"></a>
+<span class="sourceLineNo">300</span>    }<a name="line.300"></a>
+<span class="sourceLineNo">301</span><a name="line.301"></a>
+<span class="sourceLineNo">302</span>    SyncTimeRangeTracker(long minimumTimestamp, long maximumTimestamp) {<a name="line.302"></a>
+<span class="sourceLineNo">303</span>      this.minimumTimestamp.set(minimumTimestamp);<a name="line.303"></a>
+<span class="sourceLineNo">304</span>      this.maximumTimestamp.set(maximumTimestamp);<a name="line.304"></a>
+<span class="sourceLineNo">305</span>    }<a name="line.305"></a>
+<span class="sourceLineNo">306</span><a name="line.306"></a>
+<span class="sourceLineNo">307</span>    @Override<a name="line.307"></a>
+<span class="sourceLineNo">308</span>    protected void setMax(long ts) {<a name="line.308"></a>
+<span class="sourceLineNo">309</span>      maximumTimestamp.set(ts);<a name="line.309"></a>
+<span class="sourceLineNo">310</span>    }<a name="line.310"></a>
+<span class="sourceLineNo">311</span><a name="line.311"></a>
+<span class="sourceLineNo">312</span>    @Override<a name="line.312"></a>
+<span class="sourceLineNo">313</span>    protected void setMin(long ts) {<a name="line.313"></a>
+<span class="sourceLineNo">314</span>      minimumTimestamp.set(ts);<a name="line.314"></a>
+<span class="sourceLineNo">315</span>    }<a name="line.315"></a>
+<span class="sourceLineNo">316</span><a name="line.316"></a>
+<span class="sourceLineNo">317</span>    @Override<a name="line.317"></a>
+<span class="sourceLineNo">318</span>    protected boolean compareAndSetMin(long expect, long update) {<a name="line.318"></a>
+<span class="sourceLineNo">319</span>      return minimumTimestamp.compareAndSet(expect, update);<a name="line.319"></a>
+<span class="sourceLineNo">320</span>    }<a name="line.320"></a>
+<span class="sourceLineNo">321</span><a name="line.321"></a>
+<span class="sourceLineNo">322</span>    @Override<a name="line.322"></a>
+<span class="sourceLineNo">323</span>    protected boolean compareAndSetMax(long expect, long update) {<a name="line.323"></a>
+<span class="sourceLineNo">324</span>      return maximumTimestamp.compareAndSet(expect, update);<a name="line.324"></a>
+<span class="sourceLineNo">325</span>    }<a name="line.325"></a>
+<span class="sourceLineNo">326</span><a name="line.326"></a>
+<span class="sourceLineNo">327</span>    @Override<a name="line.327"></a>
+<span class="sourceLineNo">328</span>    public long getMin() {<a name="line.328"></a>
+<span class="sourceLineNo">329</span>      return minimumTimestamp.get();<a name="line.329"></a>
+<span class="sourceLineNo">330</span>    }<a name="line.330"></a>
+<span class="sourceLineNo">331</span><a name="line.331"></a>
+<span class="sourceLineNo">332</span>    @Override<a name="line.332"></a>
+<span class="sourceLineNo">333</span>    public long getMax() {<a name="line.333"></a>
+<span class="sourceLineNo">334</span>      return maximumTimestamp.get();<a name="line.334"></a>
+<span class="sourceLineNo">335</span>    }<a name="line.335"></a>
+<span class="sourceLineNo">336</span>  }<a name="line.336"></a>
+<span class="sourceLineNo">337</span>}<a name="line.337"></a>
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+</pre>
+</div>
+</body>
+</html>


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